• Male, 24 Years
• Activity Score1595

## Pratik H

• I teach at My Home
• I go to Student's Home
• Online
• Qualification:
B.Tech/B.E.
• Experience:
I have done B.E (Automobile) and have been teaching diploma and degree engineering students of automobile and mechanical engineering branch.
• Teaches:
Physics, Mathematics, B.Tech Tuition, Production, Mechanical, Cricket
• Board:
Gujarat University, Ahmedabad , Local State Board
• Areas:
• Pincode:
395009
Profile Details

#### Qualification :

 B.Tech/B.E. MSCET SURAT 2016

#### Total Experience :

1Year

I have done B.E (Automobile) and have been teaching diploma and degree engineering students of automobile and mechanical engineering branch.

#### Tutoring Option:

Home Tuition Only

#### Hourly Fees [INR]:

300.00

 Class 9 - 10 Mathematics, Physics, Local State Board INR 200.00 /hour Class 11 - 12 Mathematics, Physics, Local State Board INR 500.00 /hour College Level Mathematics, Physics, B.Tech Tuition, Gujarat University, Ahmedabad INR 300.00 /hour Engineering Subjects Mathematics, Mechanical, Production INR 300.00 /hour Sports Cricket INR 200.00 /hour
Educational Resources

## Notes written by me [2]

##### Stress And Strain
• File(s) contain : 1

The Strength of Materials  Topic-Stress and Strain.

##### Short Note On Machine Design
• File(s) contain : 1

Short Note On Machine Design With Formulas.

## Presentations prepared by me [1]

##### Aerodynamic Drag Force Analysis

Introduction To Aerodynamic Drag Force Acting On An object And How It Can Be Reduced.

• ## Question: How can an average student become a 10th standard topper?

Posted in: Mathematics,Computer Science,Physics,Chemistry,Biology | Date: 10/02/2018

The most important thing is hardwork. When I say hardwork that doesn't mean anyone have to dig holes. Hardworking means to do study more and more upto the point when you find yourself absolutely confident that any question asked in exam, you will be able to answer it perfectly. I other words practice more and more questions and try to achieve perfection in your answers. Other thing is smart work in which you have to plan, schedule your studies and timing smartly to finish things on time Hope this things will be helpful.

• ## Question: Third pin of a 3 pin plug is thicker and longer due to

Posted in: Electrical | Date: 10/02/2018

Correct answer is option B Explanation:- third plug is made bigger because of safety in the way anyone cannot put that pin in the wrong hole which could damage the wiring due to short circuiting.

• ## Question: In which braking back emf exceeds supply voltage?

Posted in: Electrical | Date: 10/02/2018

Answer is option A Explanation :- In regenerative braking, when brakes are applied, the back emf generated by the electric motor will be greater than original emf which will charge the battery while braking which would otherwise be wasted in conventional braking.

• ## Question: What does the dot product of two vectors give you?

Posted in: Physics | Date: 10/02/2018

Magnitude of resultant vector

• ## Question: What is the magnitude of the centripetal acceleration?

Posted in: Physics | Date: 10/02/2018

Magnitude of centripetal acceleration is mw^2r

• ## Question: What is the magnitude of the acceleration?

Posted in: Physics | Date: 10/02/2018

Acceleration is change in velocity with respect to time. Acceleration =final velocity - initial acceleration /time

• ## Question: How do you calculate the magnitude of a vector?

Posted in: Physics | Date: 12/02/2018

Magnitude of vector is by square root of addition of square of each vector.

• ## Question: When is the dot product of two vectors 0?

Posted in: Physics | Date: 13/02/2018

Dot product of two vectors gives the magnitude of the resultant vector.

• ## Question: What are the pros and cons of wind power?

Posted in: Chemistry | Date: 13/02/2018

Pros :- Renewable sources of energy Clean source of energy without pollution Cons:- high cost of windmills Should be located only where wind speed is high.

• ## Question: Can I use biodiesel in my car?

Posted in: Chemistry | Date: 13/02/2018

No biodiesel cannot be used directly. Your car need to be modified to run on biodiesel.

• ## Question: What is the difference between biomass and biogas?

Posted in: Chemistry | Date: 13/02/2018

Biomass is the waste bio materials like cow dung, dead parts of plants, etc while biogas is the gas which is produced by the combustion of biomass.

• ## Question: I am in Class VII. I love science but find it very hard. What to do?

Posted in: Physics,Chemistry,Biology | Date: 13/02/2018

Science looks difficult from above but when you try to understand what exactly it is than you will not only find it easier but also interesting and fun to learn.

• ## Question: What are the negative side effects of wind power?

Posted in: Chemistry | Date: 13/02/2018

1) costly windmills 2) windmills have to be installed where there is high wind speed.

• ## Question: What is the pros and cons of wind power?

Posted in: Chemistry | Date: 13/02/2018

Pros :- 1) renewable sources of energy 2) clean source of energy without pollution Cons :- 1) costly setup for windmills 2) windmill have to be installed where there is high wind speed.

• ## Question: Is Biogas a biofuel?

Posted in: Chemistry | Date: 13/02/2018

Yes biogas is a fuel produced by burning of biomass.

• ## Question: What are the pros and cons of hydroelectric power?

Posted in: Chemistry | Date: 13/02/2018

Pros :- 1) renewable sources of energy 2) clean source of energy without pollution Cons :- 1) costly setup for turbines 2) high cost of dam construction 3) large amount of water flow is required.

• ## Question: How can an average student become a 10th standard topper?

Posted in: Mathematics,Computer Science,Physics,Chemistry,Biology | Date: 13/02/2018

Hard work, smart work, percieverance, believe in yourself, believe in your ability, identifying weak areas and practicing it to achieve perfection. These things can make you topper

• ## Question: What is the method used to find the unknown part of an analytic function?

Posted in: Mathematics | Date: 13/02/2018

Analytical function can be found by Cauchy reiman equations

• ## Question: How much time should I give each subject per day to score the highest marks in m...

Posted in: History,Geography,Algebra,Mathematics,Biology,Chemistry,Physics,Accountancy | Date: 13/02/2018

It depends on your ability to learn. Just do topics until you find it easier. Probably 2-3 hours will be enough.

• ## Question: What is a magnitude of a vector?

Posted in: Physics | Date: 13/02/2018

Magnitude of vector is the intensity of the quantity which the vector represents. If vector represents force than its magnitude is the intensity of force.

• ## Question: How do you find the magnitude of a vector?

Posted in: Physics | Date: 13/02/2018

Magnitude of vector is found by the length of the vector

• ## Question: How do you break a vector into its components?

Posted in: Physics | Date: 13/02/2018

Vector is break into horizontal and vertical components by multiplying it with cos for horizontal and sin for vertical components.

• ## Question: What is the unit for the magnitude of acceleration?

Posted in: Physics | Date: 13/02/2018

Unit of acceleration is m^2 per second

• ## Question: What is the formula for acceleration?

Posted in: Physics | Date: 13/02/2018

Formula for acceleration is change in velocity / time taken

• ## Question: Can a vector be positive or negative?

Posted in: Physics | Date: 13/02/2018

Vector will always be positive. It cannot be negative. If there is negative sign it will indicate it's direction.

• ## Question: What is the result of resolving a vector?

Posted in: Physics | Date: 13/02/2018

Vectors can be resolved into two components 1) horizontal and 2) vertical.

• ## Question: How do you calculate the magnitude of a vector?

Posted in: Physics | Date: 13/02/2018

Magnitude of vector is calculated by the length of the vector.

• ## Question: What is the formula of centripetal acceleration?

Posted in: Physics | Date: 13/02/2018

Formula for centripetal acceleration is mw^2*r

• ## Question: Which is better Iphone or Android?

Posted in: Android Training | Date: 13/02/2018

Android is better because of wide range of users,user friendly and universal acceptance. IPhone is used by few peoples, nice user experience with iPhone.

• ## Question: What is API full form?

Posted in: Android Training | Date: 13/02/2018

Full form of API is application program interface

Posted in: Chemistry | Date: 13/02/2018

Adv :- less pollution , Decrease of dependence on fossil fuels Disadvantage :- complicated process of blending diesel with biofuel.

• ## Question: Can distance traveled ever be less than the magnitude of the displacement?

Posted in: Physics | Date: 13/02/2018

No distance cannot be less than displacement but displacement can be less than distance.

• ## Question: Is the magnitude always positive?

Posted in: Physics | Date: 13/02/2018

Yes magnitude is always positive. If there is negative sign than it will be for direction.

• ## Question: Is biofuel energy renewable or nonrenewable?

Posted in: Chemistry | Date: 13/02/2018

Biofuel energy is renewable sources of energy because it is produced from biomass which is renewable.

• ## Question: Can you have a negative magnitude of acceleration?

Posted in: Physics | Date: 13/02/2018

No magnitude of acceleration is always positive. If there is negative sign than it will indicate it's direction.

• ## Question: Can you have a negative magnitude?

Posted in: Chemistry | Date: 13/02/2018

Magnitude cannot be negative. If there is negative sign than it will indicate it's direction

• ## Question: What is hydrosphere?

Posted in: Geography | Date: 14/02/2018

Hydrosphere is a layer of gas in the atmosphere. Other layers are troposphere, mesosphere, etc

• ## Question: What is noise pollution? State the three sources of noise pollution.

Posted in: History | Date: 14/02/2018

Large amount of noise produced by various sources when transmitted to atmosphere it is called noise pollution. Sources :- 1) vehicles traffic 2) industrial machines 3) loud speaker

• ## Question: What is ‘editing’?

Posted in: Mass communication | Date: 14/02/2018

Editing is the process of changing, selecting audio and video for improving it's quality.

• ## Question: What is ‘lost wax’ technique?

Posted in: History | Date: 14/02/2018

Lost wax is the process of casting metal objects in which mould is made up of wax and is consumed with the metal as it cools and solidifies.

• ## Question: What is bronze?

Posted in: History | Date: 14/02/2018

Bronze is an alloy of copper,iron and nickel.

• ## Question: For how many years more can I expect my son’s height to increase? He is 13...

Posted in: Martial Arts,Yoga | Date: 17/02/2018

Generally height of a male grows uptill the age of 18 years. Variation from it is possible.

• ## Question: Need help with RBSE Board Class XII Math preparation.

Posted in: Mathematics | Date: 17/02/2018

Get yourself admission in tuition class. You can also watch videos on YouTube.

• ## Question: Guide me on preparing for the final exam in my last month in the 12th standard.

Posted in: Mathematics,Bengali,Physics | Date: 17/02/2018

I can teach you various subjects of 12th std if you want and revise all your topics. As of advice I can tell you that please don't take any stress or tension. You have done hardwork so you will surely get results. Tension will hamper your progress and decrease your marks. Be confident and relaxed in last month.

• ## Question: I want to teach Biology and Chemistry online. How can I find students?

Posted in: Biology,Chemistry | Date: 17/02/2018

• ## Question: Can you tell me which questions to expect in the ISC Biology Practical Paper, 20...

Posted in: Biology | Date: 17/02/2018

Questions will only be asked from the syllabus.

• ## Question: Help me to prepare for my ISC 2018 Chemistry and English exams, please!

Posted in: Chemistry,English | Date: 17/02/2018

I can teach you if you want. Feel free to contact me. Don't worry everything will be sorted just be confident.

• ## Question: What are the pros and cons of nuclear power?

Posted in: Chemistry | Date: 17/02/2018

Pros :- no air pollution, huge amount of energy can be generated Cons :- danger of explosion, radioactivity is poisonous.

• ## Question: What are the pros and cons of nuclear fission?

Posted in: Chemistry | Date: 17/02/2018

Pros :- no air pollution, large amount of energy can be generated Cons :- danger of explosion, radioactivity is poisonous.

• ## Question: Is Biodiesel safe?

Posted in: Chemistry | Date: 17/02/2018

Yes biodiesel is safe but it can damage the engine on long run so modifications is required for the engine.

• ## Question: What are the pros and cons of biomass energy?

Posted in: Chemistry | Date: 17/02/2018

Pros :- renewable sources of energy, available in large quantities Cons :- creates air pollution on burning, Complicated process.

• ## Question: What are the advantages and disadvantages of tidal power?

Posted in: Chemistry | Date: 17/02/2018

Adv :- renewable sources of energy, available free of cost Cons :- energy is converted only on high tide, huge cost of dam construction.

• ## Question: What are the advantages and disadvantages of nuclear power?

Posted in: Chemistry | Date: 17/02/2018

Adv :- large amount of energy can be generated, no air pollution Disadvantage :- danger of explosion, radioactivity is poisonous.

• ## Question: What is good about nuclear power?

Posted in: Chemistry | Date: 17/02/2018

Large amount of energy can be generated, no air pollution.

• ## Question: What is the formula for the magnitude of a vector?

Posted in: Physics | Date: 17/02/2018

Magnitude is the intensity of the quantity which the vector represents.

• ## Question: What are the advantages and disadvantages of wave energy?

Posted in: Chemistry | Date: 17/02/2018

Adv :- renewable sources of energy, available free of cost Disadvantage :- energy can be generated only on high tide, huge cost of dam construction.

• ## Question: Can we lie about your income on credit cards?

Posted in: Accountancy | Date: 17/02/2018

No you can't lie about your income on credit card. If you try to lie you will get caught and penalized.

• ## Question: What is YTD mean?

Posted in: Economics | Date: 17/02/2018

Ytd means year to date.

• ## Question: Is net price with or without VAT?  Please explain.

Posted in: Economics | Date: 17/02/2018

Net price is always inclusive of taxes. It includes all the taxes.

• ## Question: How do we calculate the net cost?

Posted in: Accountancy | Date: 17/02/2018

Net cost = gross income - incentives,benefits,etc.

• ## Question: How do we calculate net sales?

Posted in: Accountancy | Date: 17/02/2018

Net sales = gross sales - sales return.

• ## Question: How are vectors drawn?

Posted in: Physics | Date: 17/02/2018

Length of vector represents it's magnitude and orientation represents it's direction.

• ## Question: What is the resultant of two vectors?

Posted in: Physics | Date: 17/02/2018

Resultant of vector is the sum of all the vectors.

• ## Question: What are the good things about nuclear power?

Posted in: Chemistry | Date: 17/02/2018

Large amount of energy can be generated, no air pollution.

• ## Question: What are the advantages and disadvantages of using nuclear power?

Posted in: Chemistry | Date: 17/02/2018

Adv :- large amount of energy can be generated, no air pollution Disadvantage :- danger of explosion, radioactivity is poisonous

• ## Question: What are the advantages and disadvantages of biomass energy?

Posted in: Chemistry | Date: 17/02/2018

Adv :- renewable source of energy, decrease our dependence on fossil fuels Disadvantage :- it's burning produces air pollution, Complicated process of creating.

• ## Question: What is the difference between the biodiesel and biofuel?

Posted in: Chemistry | Date: 17/02/2018

Biodiesel is blending of biogass with diesel while biogass is the gas produced by burning of biomass.

• ## Question: Is biofuel and biodiesel the same thing?

Posted in: Chemistry | Date: 17/02/2018

No biodiesel is blending of biogass and diesel while biofuel is produced by burning of biomass

• ## Question: Is biodiesel more efficient than gasoline?

Posted in: Chemistry | Date: 17/02/2018

No petrol is more efficient than biodiesel. It's air standard efficiency is high.

• ## Question: What is the polygon law of vector addition?

Posted in: Physics | Date: 17/02/2018

In polygonal law, all vectors are arranged in a closed polygon where closing vector represents magnitude and direction of resultant vector

• ## Question: What is an example of a vector?

Posted in: Physics | Date: 17/02/2018

Force, velocity, acceleration, etc are examples of vector

• ## Question: What is a physical quantity that has both magnitude and direction?

Posted in: Physics | Date: 17/02/2018

Physical quantity with both magnitude and direction is called vector quantity

• ## Question: Is biofuel good or bad for the environment?

Posted in: Chemistry | Date: 17/02/2018

Biofuel is good for environment. It decreases our dependence on fossil fuels

• ## Question: What is the environmental impact of using biodiesel?

Posted in: Chemistry | Date: 17/02/2018

Use of biodiesel decrease our dependence on fossil fuels

• ## Question: Do ethanol fires produce heat?

Posted in: Chemistry | Date: 17/02/2018

Yes ethanol fire produces large amount of heat

• ## Question: How bad is ethanol for humans?

Posted in: Chemistry | Date: 17/02/2018

Ethanol is toxic and poisonous to human health

• ## Question: Is gasohol more efficient than gasoline?

Posted in: Chemistry | Date: 17/02/2018

Gasoline is more efficient than gasohol

• ## Question: Do opposite vectors have a negative magnitude?

Posted in: Physics | Date: 17/02/2018

No magnitude will always be positive. Negative sign represents direction

• ## Question: Can you drink ethanol alcohol?

Posted in: Chemistry | Date: 17/02/2018

No ethanol is toxic and poisonous to human health

• ## Question: Can we have physical quantities having magnitude and direction which are not vec...

Posted in: Physics | Date: 17/02/2018

No vectors are quantities having magnitude and direction

• ## Question: Are bio ethanol fires safe?

Posted in: Chemistry | Date: 17/02/2018

No bioethanol is inflammable

• ## Question: Can the magnitude of a vector be zero?

Posted in: Physics | Date: 17/02/2018

Yes magnitude can be zero but not negative

• ## Question: Is biofuel a good thing?

Posted in: Chemistry | Date: 17/02/2018

Yes biofuel is good because it decreases our dependence on fossil fuels

• ## Question: What are the advantages and disadvantages of wind power?

Posted in: Chemistry | Date: 17/02/2018

Adv :- renewable sources of energy, clean source of energy without pollution Disadvantage :- used only where wind speed is high, cost of windmills is high

• ## Question: What is the parallel vector?

Posted in: Physics | Date: 17/02/2018

When direction of two vectors is same than vectors are called parallel vectors

• ## Question: What is better diesel or biodiesel?

Posted in: Chemistry | Date: 17/02/2018

Biodiesel is better than diesel because it decreases our dependence on fossil fuels

• ## Question: Is ethanol and biodiesel the same?

Posted in: Chemistry | Date: 17/02/2018

No ethanol is an alcohole while biodiesel is blending of biofuel and diesel

• ## Question: What is the sum of two or more vectors?

Posted in: Physics | Date: 17/02/2018

Sum of vector is called the resultant vector

• ## Question: What is the difference between biomass and biofuels?

Posted in: Chemistry | Date: 17/02/2018

Biomass is the waste bio materials like cow dung, dead parts of plants while biofuel is produced by burning of biomass

• ## Question: How do you find the resultant of two vectors?

Posted in: Physics | Date: 17/02/2018

Resultant vector is the sum of two vectors

• ## Question: Why is it better to use biofuels?

Posted in: Chemistry | Date: 17/02/2018

Biofuels are better because it decreases our dependence on fossil fuels

• ## Question: What are the disadvantages of using nuclear power?

Posted in: Chemistry | Date: 17/02/2018

• ## Question: What are the advantages and disadvantages of using biodiesel?

Posted in: Chemistry | Date: 17/02/2018

Adv :- renewable sources of energy, decreasing our dependence on fossil fuels Disadvantage :- damages engine on long run, engine modifications is required.

• ## Question: Is net price with or without VAT?

Posted in: Accountancy | Date: 17/02/2018

Net price is with VAT. Inclusive of taxes

• ## Question: Why are biofuels bad?

Posted in: Chemistry | Date: 17/02/2018

Biofuels produces air pollution on burning, complicated blending process

• ## Question: What does it mean when a price is net?

Posted in: Accountancy | Date: 17/02/2018

Net price is the price including all taxes

• ## Question: What is biofuel in simple terms?

Posted in: Chemistry | Date: 17/02/2018

Biofuel is the gas produced by burning of biomass

• ## Question: What does Biofuels do?

Posted in: Chemistry | Date: 17/02/2018

Biofuel decrease our dependence on fossil fuels as they are blending of biogas and fossil fuels

• ## Question: What are the benefits of using biodiesel?

Posted in: Chemistry | Date: 17/02/2018

Biodiesel decrease our dependence on fossil fuels

• ## Question: What is an example of a biofuel?

Posted in: Chemistry | Date: 17/02/2018

Bio and biogas are examples of biofuels

• ## Question: What are biofuels for?

Posted in: Chemistry | Date: 17/02/2018

Biofuels can be used as fuels in the vehicle by making minor modifications in the engine

• ## Question: What are the economic benefits of digital marketing?

Posted in: Economics | Date: 19/02/2018

Increase in customer base resulting in increase of business and profit.

• ## Question: What is the difference between biogas and biofuels?

Posted in: Chemistry | Date: 19/02/2018

Biogas is produced by burning of biomass while biofuel is a general term which includes biogas as well as other fuels like biodiesel.

• ## Question: What is considered a long-term investment?

Posted in: Economics | Date: 19/02/2018

Investment done for long periods of time probably for more than 10 years is called long term investment

Posted in: Chemistry | Date: 19/02/2018

Adv :- renewable sources of energy, available in large quantities Disadvantage :- burning of biofuel produces air pollution, complicated process of blending.

• ## Question: What is biofuel made of?

Posted in: Chemistry | Date: 21/02/2018

Biofuel is made up of biogas and fossil fuels like petrol, diesel.

• ## Question: What is bioethanol and what is it used for?

Posted in: Chemistry | Date: 21/02/2018

Bioethanol is the blending of biofuel with ethanol. It is used as a fuel for running vehicles.

• ## Question: How is bioethanol is produced?

Posted in: Chemistry | Date: 21/02/2018

Bioethanol is produced by blending process of biofuel and ethanol

• ## Question: What is the difference between biodiesel and biofuels?

Posted in: Chemistry | Date: 21/02/2018

Biodiesel is blending of biogas and diesel while biofuel is a mixture of biogas and any fossil fuels like petrol and diesel.

• ## Question: Is biofuels a renewable resource?

Posted in: Chemistry | Date: 21/02/2018

Yes biofuel is a renewable fuel because it is produced by burning of biomass which is renewable in nature.

• ## Question: What are the different types of biofuels?

Posted in: Chemistry | Date: 21/02/2018

Biodiesel and bioethanol are two types of biofuels

• ## Question: What is meant by magnitude of a vector?

Posted in: Physics | Date: 21/02/2018

Magnitude of vector is the intensity of the quantity which represents that vector.

• ## Question: What are the components of a vector?

Posted in: Physics | Date: 21/02/2018

There are two components of the vector 1) horizontal and 2) vertical.

• ## Question: What is zero vector in physics?

Posted in: Physics | Date: 21/02/2018

When magnitude of vector is zero than it is called zero vector

• ## Question: How would you define the zero vector?

Posted in: Physics | Date: 21/02/2018

The vector whose magnitude is zero is called Zero vector.

• ## Question: What is the definition of the magnitude of a vector?

Posted in: Physics | Date: 21/02/2018

Magnitude of vector is the intensity of the quantity which represents that vector.

• ## Question: How do you calculate the magnitude of acceleration?

Posted in: Physics | Date: 21/02/2018

Magnitude of acceleration is the rate of change of velocity with respect to time.

• ## Question: How do you know if two vectors are equal?

Posted in: Physics | Date: 21/02/2018

When magnitude of two vectors are equal than they are called equal vectors.

• ## Question: Can the magnitude of a vector be zero?

Posted in: Physics | Date: 21/02/2018

Yes magnitude of vector can be zero or positive but not negative.

• ## Question: What is the instrument used to magnify objects?

Posted in: Physics | Date: 21/02/2018

Instrument used for magnifying objects is called microscope .

• ## Question: What are all the different types of metals?

Posted in: Chemistry | Date: 21/02/2018

Different types of metals are iron, steel, copper, aluminium, etc.

• ## Question: What metals are used in everyday life?

Posted in: Chemistry | Date: 21/02/2018

Iron, steel, copper and aluminium is used in day to day life.

• ## Question: Do sound waves travel faster in water or air?

Posted in: Physics | Date: 21/02/2018

Sound waves travels faster in water than in air.

• ## Question: What is an example of a nonmetal?

Posted in: Chemistry | Date: 21/02/2018

Rubber, plastic, paper, etc are examples of non metals

• ## Question: What are the characteristics of a nonmetal?

Posted in: Chemistry | Date: 21/02/2018

Non metals are bad conductor of heat and electricity.

• ## Question: What are some non metals?

Posted in: Chemistry | Date: 21/02/2018

Rubber, plastic, cloth, etc are examples of non metals.

• ## Question: What is the difference between a metal and a nonmetal on the periodic table?

Posted in: Chemistry | Date: 21/02/2018

Metals are good conductor of heat and electricity while non metals are bad conductor of heat and electricity.

• ## Question: Which instrument is used to view distant objects?

Posted in: Physics | Date: 21/02/2018

Telescope is used to view distance objects.

• ## Question: What is optics used for?

Posted in: Physics | Date: 21/02/2018

Optics is used to make instrument like telescope and microscope.

• ## Question: What is a simple definition of entropy?

Posted in: Chemistry | Date: 21/02/2018

Entropy is defined as the degree of disorder in the object and it is measure of the ease with which chemical reaction takes place.

• ## Question: What is the kinematics?

Posted in: Chemistry | Date: 21/02/2018

Kinematics is the study of motion of mechanism without considering forces acting on it.

• ## Question: What is the kinematics in animation?

Posted in: Chemistry | Date: 21/02/2018

Kinematics is the study of motion of mechanism without considering forces acting on it.

• ## Question: What is the meaning of entropy in thermodynamics?

Posted in: Chemistry | Date: 21/02/2018

Entropy is defined as the degree of disorder in the object and it is measure of the ease with which chemical reaction takes place.

• ## Question: What is kinetic in physics?

Posted in: Chemistry | Date: 21/02/2018

Kinetics is the study of motion of mechanism with considering forces acting on it

• ## Question: What is the meaning of thermodynamics in chemistry?

Posted in: Chemistry | Date: 21/02/2018

Thermodynamics is the branch of science that deals with the study of transfer of heat and it's conversion.

• ## Question: What is a example of a liquid?

Posted in: Physics | Date: 21/02/2018

Milk, water, tea, coffee, etc are examples of liquid

• ## Question: Is heat an example of matter? Please explain.

Posted in: Physics | Date: 21/02/2018

Heat is a form of energy not matter

• ## Question: What is Valency and example?

Posted in: Chemistry | Date: 21/02/2018

Valency is the number of electrons present in the outermost orbit of an atom

• ## Question: How do you find the Valency of an element?

Posted in: Chemistry | Date: 21/02/2018

Valency is the number of electrons present in the outermost orbit of an atom

• ## Question: What holds together the particles in a solid?

Posted in: Chemistry | Date: 21/02/2018

The force which holds the particles in a solid is called van der waals force

• ## Question: What is the value for R in the ideal gas law?

Posted in: Physics | Date: 21/02/2018

The value of R in ideal gas law is 26.7 J/kg K

• ## Question: Which state has the most energy solid liquid or gas?

Posted in: Physics | Date: 21/02/2018

Solid state has maximum energy

• ## Question: What state of matter has the most energy?

Posted in: Physics | Date: 21/02/2018

Solid state has maximum energy

• ## Question: How do we measure gas pressure?

Posted in: Physics | Date: 21/02/2018

Pressure is measured by instrument called barometer

• ## Question: Which instrument is used to measure gas pressure?

Posted in: Physics | Date: 21/02/2018

Barometer is used to measure gas pressure

• ## Question: What is inside of a neutron?

Posted in: Chemistry | Date: 21/02/2018

Neutron are neutral. They don't have positive or negative power

• ## Question: Is it true that most of an atom is empty space? Please explain.

Posted in: Chemistry | Date: 21/02/2018

Yes because atom consists of protons, neutrons and electrons. Size of these particles is very less than that of an atom

• ## Question: How can the pressure of a gas be changed?

Posted in: Physics | Date: 21/02/2018

Pressure of gas can be changed by changing its volume that is compressing it

• ## Question: How do particles move in a gas?

Posted in: Physics | Date: 21/02/2018

Particles in a gas are free to move thus they move in a random manner

• ## Question: What is smaller than an atom?

Posted in: Chemistry | Date: 21/02/2018

Protons, neutrons and electrons are smaller than atom

• ## Question: What is inside of an atom?

Posted in: Chemistry | Date: 21/02/2018

Protons and neutrons are inside atom and electrons revolve around it

• ## Question: Can we see an atom?

Posted in: Chemistry | Date: 21/02/2018

Yes Atoms can be seen with the help of electron microscope

• ## Question: How does temperature affect the pressure of a gas?

Posted in: Physics | Date: 21/02/2018

Pressure of gas increases with increase in temperature

• ## Question: How do we measure gas pressure?

Posted in: Physics | Date: 21/02/2018

Gas pressure is measured by instrument called barometer

• ## Question: What is the difference between an atom and an ion?

Posted in: Chemistry | Date: 21/02/2018

Atom is the particle while ion is the charge of an atom

• ## Question: Do liquids have more kinetic energy than solids?

Posted in: Physics | Date: 21/02/2018

Yes liquid has more kinetic energy than solid because atom of liquid are free to move

• ## Question: Are atoms and elements the same thing?

Posted in: Chemistry | Date: 22/02/2018

No atoms are basic particle of matter while element is made up of different types of atoms

• ## Question: How can the pressure of a gas be increased?

Posted in: Physics | Date: 22/02/2018

Pressure of gas can be increased by decreasing it's volume that is compressing it

• ## Question: What is most of an atom made up of?

Posted in: Chemistry | Date: 22/02/2018

Atom is made up of protons and neutrons

• ## Question: What is the taste of bases?

Posted in: Chemistry | Date: 22/02/2018

Bases are sour in taste

• ## Question: What are the four main types of pollution?

Posted in: Biology | Date: 22/02/2018

Air, water, noise and land pollution are major types of pollution

• ## Question: Is $CH_3CH_2COOH$ an acid or a base?

Posted in: Chemistry | Date: 22/02/2018

It is a base due to presence of OH group

• ## Question: What are some examples of noise pollution?

Posted in: Biology | Date: 22/02/2018

Vehicles , industrial machines and loud speaker

• ## Question: What is the use of rainwater?

Posted in: Geography | Date: 22/02/2018

Rain water is used for drinking, agriculture and industries

• ## Question: How do you know if something is an acid or a base?

Posted in: Chemistry | Date: 22/02/2018

It is measured with the help of litmus paper which measures ph value of substance

• ## Question: What are the three main types of environment?

Posted in: Biology | Date: 22/02/2018

Air, water and land are types of environment

• ## Question: How many types of pollution are there?

Posted in: Biology | Date: 22/02/2018

Four types :- air, water, land and noise

• ## Question: Can we drink rain water to survive? Please explain.

Posted in: Geography | Date: 22/02/2018

Yes we can drink rain water to servive

• ## Question: What can we do with collected rainwater?

Posted in: Geography | Date: 22/02/2018

Rain water can be used for drinking, agriculture and industries

• ## Question: Why rain is important to the earth?

Posted in: Geography | Date: 22/02/2018

Rain provides water for drinking, agriculture and industries

• ## Question: What are the two major sources of air pollution?

Posted in: Biology | Date: 22/02/2018

Emission from vehicles and smoke from industries

• ## Question: What are the three main types of pollution?

Posted in: Biology | Date: 22/02/2018

Air, Water and land pollution are major types of pollution

• ## Question: Is $KNO_3$ an acid or base?

Posted in: Chemistry | Date: 22/02/2018

KNO3 is an acid

• ## Question: What are the different types of air pollutants?

Posted in: Biology | Date: 22/02/2018

Carbon dioxide, carbon monoxide, sulphur dioxide are the main air pollutants

• ## Question: What are the different types of pollutants?

Posted in: Biology | Date: 22/02/2018

Carbon dioxide, carbon monoxide, sulphur dioxide are the main air pollutants

• ## Question: Who won the battle between Alexander and Porus?

Posted in: History | Date: 22/02/2018

Alexander won the battle

• ## Question: Why do we need to save water?

Posted in: Geography | Date: 22/02/2018

Water is necessary for the survivalist of every living organisms

• ## Question: Why is it so important to save water?

Posted in: Geography | Date: 22/02/2018

Water is necessary for the survival of every living organisms

• ## Question: What is the use of rain?

Posted in: Geography | Date: 22/02/2018

Rain is the only source of water on earth which is used for drinking and agriculture

• ## Question: How does rain water harvesting help?

Posted in: Geography | Date: 22/02/2018

Rain water harvesting provides water for drinking and agriculture

• ## Question: What are the three main types of environment?

Posted in: Biology | Date: 22/02/2018

Air, water and land are types of environment

• ## Question: What is the use of rainwater harvesting?

Posted in: Geography | Date: 22/02/2018

Rain water harvesting provides water for drinking and agriculture

• ## Question: Is lemon juice an acid or a base?

Posted in: Chemistry | Date: 22/02/2018

Lemon juice is an acid

• ## Question: What is the advantage of rainwater harvesting?

Posted in: Geography | Date: 22/02/2018

Rain water harvesting provides water for drinking and agriculture

• ## Question: Is $NaOH$ an acid or a base?

Posted in: Chemistry | Date: 22/02/2018

NaOH is a base

• ## Question: What can we do with collected rainwater?

Posted in: Geography | Date: 22/02/2018

Rain water is used for drinking and agriculture

• ## Question: What makes a base?

Posted in: Chemistry | Date: 22/02/2018

OH GROUP called hydroxyl group forms base

• ## Question: Why rain water harvesting is important?

Posted in: Geography | Date: 22/02/2018

Rain water harvesting provides water for drinking and agriculture

• ## Question: Is $CaCl_2$ an acid or base or salt?

Posted in: Chemistry | Date: 22/02/2018

CaCl2 is a salt

• ## Question: What is the use of rainwater harvesting?

Posted in: Geography | Date: 22/02/2018

Rain water harvesting provides water for drinking and agriculture

• ## Question: What is the advantage of rainwater harvesting?

Posted in: Geography | Date: 22/02/2018

Rain water harvesting provides water for drinking and agriculture

• ## Question: Is $H_2SO_4$an acid or base or salt?

Posted in: Chemistry | Date: 22/02/2018

H2SO4 is an acid

• ## Question: What is the main purpose of rainwater harvesting?

Posted in: Geography | Date: 22/02/2018

Rain water harvesting provides water for drinking and agriculture

• ## Question: What are the benefits of rainwater harvesting?

Posted in: Geography | Date: 22/02/2018

Rain water harvesting provides water for drinking and agriculture

• ## Question: Is nacl a base or an acid?

Posted in: Chemistry | Date: 22/02/2018

Nacl is a base

• ## Question: What do you mean by arthashastra?

Posted in: History | Date: 22/02/2018

Economics is called Arthshashtra in Sanskrit

• ## Question: What is linear motion with examples?

Posted in: Physics | Date: 22/02/2018

Motion in a straight line is called linear motion. Example motion of vehicles on highway

• ## Question: Of late, my performance in school is going down, and I am also losing interest i...

Posted in: Mathematics,Physics,Chemistry,Biology,Creative Writing Classes | Date: 23/02/2018

Don't loose hope there is never too late to start again. You are feeling disinterested because you are not well prepared but keep in mind this is your life and exam is important for your future so keep working hard even if you don't enjoy it because at the end you will feel fantastic when you get good results.

• ## Question: What is the most spoken language in Asia?

Posted in: Geography | Date: 23/02/2018

English is the most spoken language in Asia

• ## Question: What is the newest country in Europe?

Posted in: History | Date: 23/02/2018

Iceland is the newest country in Europe

• ## Question: What is the largest country in Asia?

Posted in: Geography | Date: 23/02/2018

China is the largest country in Asia

• ## Question: What is the second biggest country in Asia?

Posted in: Geography | Date: 23/02/2018

India is the second biggest country in Asia

• ## Question: What are the rivers in Asia?

Posted in: Geography | Date: 23/02/2018

• ## Question: What is the geography of Asia?

Posted in: Geography | Date: 23/02/2018

Asia is geographically biggest continent on earth

• ## Question: What is the difference between dry heat and humidity?

Posted in: Geography | Date: 23/02/2018

Dry heat is air that doesn't contains water vapor while humidity is the water vapor contained in the air

• ## Question: Which part of the atmosphere do planes fly in?

Posted in: Geography | Date: 23/02/2018

Planes fly in stratosphere

• ## Question: What is the amount of water in the air called?

Posted in: Geography | Date: 23/02/2018

Amount of water in air is called moisture or humidity

• ## Question: What layer of the atmosphere has satellites?

Posted in: Geography | Date: 23/02/2018

Satellite lies outside atmosphere in space

• ## Question: What is in the Earth's atmosphere?

Posted in: Geography | Date: 23/02/2018

Earth's atmosphere consists of different types of gases like oxygen, nitrogen, carbon dioxide, etc in different proportions

• ## Question: What are the different layers of the atmosphere?

Posted in: Geography | Date: 23/02/2018

Troposphere, stratosphere, mesosphere, ionosphere are the layers of atmosphere

• ## Question: What is the Earth's atmosphere made up of?

Posted in: Geography | Date: 23/02/2018

Earth's atmosphere consists of different types of gases like oxygen, nitrogen, carbon dioxide, etc in different proportions

• ## Question: Which is the oldest of all Vedas?

Posted in: History | Date: 23/02/2018

Rigveda is the oldest of 4 Vedas

• ## Question: How many Vedas are there?

Posted in: History | Date: 23/02/2018

There are 4 types of Vedas

• ## Question: What are the three parts of the earth's outer structure?

Posted in: Geography | Date: 23/02/2018

Earth's crust consists of troposphere, stratosphere, mesosphere, ionosphere

• ## Question: What is the structure and composition of the earth?

Posted in: Geography | Date: 23/02/2018

Earth's atmosphere consists of different types of gases in different proportions

• ## Question: What is the strongest radiation?

Posted in: Chemistry | Date: 23/02/2018

• ## Question: What is the magnetic effect of an electric current?

Posted in: Physics | Date: 23/02/2018

When current is passed through a conductor, magnetic field is produced around it. This is called magnetic field of electric current

• ## Question: Why are solenoids useful?

Posted in: Physics | Date: 23/02/2018

Solenoids are used in various types of sensors, fan, motors, etc

• ## Question: What is the value of k in electric field?

Posted in: Physics | Date: 23/02/2018

k in electric field is called di electric constant

• ## Question: How do you find the atomic structure?

Posted in: Chemistry | Date: 23/02/2018

Atomic structure is found with the help of electron microscope

• ## Question: What is the most common type of power plant?

Posted in: Physics | Date: 23/02/2018

Thermal, electric, hydodynamic, etc are types of power plants

• ## Question: How electricity and magnetism are related?

Posted in: Physics | Date: 23/02/2018

When current is passed through a conductor, magnetic field is produced around it

• ## Question: Which devices use electromagnets?

Posted in: Physics | Date: 23/02/2018

Transformers uses electromagnet

• ## Question: Are protons and neutrons the same?

Posted in: Chemistry | Date: 23/02/2018

No protons contains positive charge while neutrons are neutral without any charge

• ## Question: How does a solenoid behaves like a magnet?

Posted in: Physics | Date: 23/02/2018

When current is passed through a solenoid, magnetic field is produced around it

• ## Question: How a battery is made up?

Posted in: Physics | Date: 15/03/2018

Battery is made up of positive and negative terminals which is immersed inside liquid electrolyte

• ## Question: What is the function of a resistor in a circuit?

Posted in: Physics | Date: 15/03/2018

Function of resistor is to resist flow of electric current

• ## Question: What is an electric cell made of?

Posted in: Physics | Date: 15/03/2018

Electric cell is made up of positive and negative terminals which is immersed inside liquid electrolyte

• ## Question: A dimensionally consistent relation for the volume V of a liquid of coefficient ...

Posted in: Physics | Date: 15/03/2018

Option A is the correct answer

• ## Question: E, m, l and G denote energy, mass, angular momentum and gravitational constant r...

Posted in: Physics | Date: 15/03/2018

Option A is the correct answer

• ## Question: The temperature of a body on Kelvin scale is found to be X K. When it is measure...

Posted in: Physics | Date: 15/03/2018

Option B is the correct answer

• ## Question: How can power loss be reduced?

Posted in: Physics | Date: 17/03/2018

Power is lost in friction in mechanical system and in resistance in case of electric system

• ## Question: How do you calculate the power?

Posted in: Physics | Date: 17/03/2018

Power is the product of voltage and current

• ## Question: What is the formula for power output?

Posted in: Physics | Date: 17/03/2018

Formula for power is P = V*I where V is voltage and I is current.

• ## Question: Why do we need a capacitor in a circuit?

Posted in: Physics | Date: 17/03/2018

Capacitor in an electric circuits is used to store electric charge

• ## Question: What are essential mineral elements?

Posted in: Biology | Date: 17/03/2018

Essential mineral elements are proteins, vitamins, carbohydrates, fats

• ## Question: Explain Interstitials:

Posted in: Chemistry | Date: 17/03/2018

When atoms in a crystal lattice takes the unoccupied space than it is called interstitial atom

• ## Question: What is a semiconductor? Describe the two main types of semiconductors.

Posted in: Chemistry | Date: 17/03/2018

Material which is neither a good conductor of electricity nor good insulator is called semi conductor. Silicon and germanium are two types of semi conductor

• ## Question: What does a switch do in an electric circuit?

Posted in: Physics | Date: 21/03/2018

Switch breaks the contact between the two links and thereby stops the flow of electric current

• ## Question: How do you read the value of a resistor?

Posted in: Physics | Date: 21/03/2018

Value of resistance is read in a unit called ohm

• ## Question: What do you do if your battery dies while driving?

Posted in: Physics | Date: 21/03/2018

Adding distilled water in the battery can start the battery and if not start working then battery must be Recharged

• ## Question: Where is the LGN?

Posted in: Physics | Date: 21/03/2018

LGN is lateral geniculate nucleus

• ## Question: Why do batteries die out?

Posted in: Physics | Date: 21/03/2018

Due to lack of electrolyte, worn out electrodes, dilute electrolyte.

• ## Question: Which device is used to break an electric circuit?

Posted in: Physics | Date: 21/03/2018

Switch is used to break an electric circuits

• ## Question: What is the difference between voltage and current?

Posted in: Physics | Date: 21/03/2018

Voltage is the potential difference between the two points while current is the flow of electric charge or flow of electrons

• ## Question: What is the different between a cell and a battery?

Posted in: Physics | Date: 23/03/2018

Cell is a single unit producing electric current while battery is made up of numbers of cells to get desired current

• ## Question: How does a simple cell produce electricity?

Posted in: Physics | Date: 23/03/2018

Simple cell produces electric current due to the chemical reaction taking place between the positive and negative terminals and electrolyte

• ## Question: Where are simple cells?

Posted in: Physics | Date: 23/03/2018

Simple cell is a device used to produce electric current

• ## Question: How does a battery work in simple terms?

Posted in: Physics | Date: 23/03/2018

Battery produces electric current as a result of the chemical reaction taking place between the positive and negative terminals and electrolyte

• ## Question: What does the voltage tell you?

Posted in: Physics | Date: 23/03/2018

Voltage is the potential difference between the two points in an electric circuit

• ## Question: What is the function of a cell in an electrical circuit?

Posted in: Physics | Date: 23/03/2018

Cell is a device used to produce electric current

• ## Question: What is the difference between an electric cell and a battery?

Posted in: Physics | Date: 23/03/2018

Cell is a single unit producing electric current while battery is made up of numbers of cells to get desired current

• ## Question: What is a simple cell?

Posted in: Physics | Date: 23/03/2018

Simple cell is a device used to produce electric current

• ## Question: How does a electric cell work?

Posted in: Physics | Date: 23/03/2018

Cell produces electric current as a result of the chemical reaction taking place between the positive and negative terminals and electrolyte

• ## Question: What is a cell in an electrical circuit?

Posted in: Physics | Date: 23/03/2018

Cell is a device used to produce electric current

• ## Question: Isotopes of an element differ in the number of ............. in their nuclei.

Posted in: Chemistry | Date: 23/03/2018

Isotope of an element differs in terms of numbers of neutron inside nuclei

• ## Question: What are the units of K = $\frac {1}{4\pi\varepsilon_0 }$?

Posted in: Physics | Date: 23/03/2018

• ## Question: The unit of permittivity of free space $\varepsilon_0$ is .....

Posted in: Physics | Date: 23/03/2018

• ## Question: From the equation tan θ = $\frac {rg}{v^2}$, one can obtain the angle of...

Posted in: Physics | Date: 23/03/2018

• ## Question: The temperature of a body on Kelvin scale is found to be X K. When it is measure...

Posted in: Physics | Date: 23/03/2018

• ## Question: What is the SI unit of universal gas constant (R) ?

Posted in: Physics | Date: 23/03/2018

Joule / mole kelvin

• ## Question: If A={2,4,5} , B={7,8,9}, then n(A x B) is equal to

Posted in: Mathematics | Date: 23/03/2018

• ## Question: If A, B and C are any three sets, then A – (B ∪ C) is equal to

Posted in: Mathematics | Date: 23/03/2018

• ## Question: If A, B and C are any three sets, then A × (B ∪ C) is equal to

Posted in: Mathematics | Date: 23/03/2018

• ## Question: In a city 20 percent of the population travels by car, 50 percent travels by bus...

Posted in: Mathematics | Date: 23/03/2018

• ## Question: In a town of 10,000 families it was found that 40% family buy newspaper A, 20% b...

Posted in: Mathematics | Date: 23/03/2018

• ## Question: If $X=\{ 4^n-3n-1 : n \in N \}$ and $Y=\{9(n-1) : n \in N \}, ... Posted in: Mathematics | Date: 23/03/2018 ### Answer: Answer is option B • ## Question: If the sets A and B are defined as \(A=\{(x,y):y=e^x, x \in R\} ; B=\{(x,y)... Posted in: Mathematics | Date: 23/03/2018 ### Answer: Answer is option C • ## Question: Which Mountain's volcano buried Pompeii city with ash in 79 AD? Posted in: History | Date: 24/03/2018 ### Answer: Answer is option D • ## Question: When did Julius Caesar first invaded Britain? Posted in: History | Date: 24/03/2018 ### Answer: Answer is option C. 55BC • ## Question: Industrial Revolution was started from which country? Posted in: History | Date: 24/03/2018 ### Answer: Industrial revolution started in England • ## Question: If the sets A and B are defined as \(A=\{ (x,y): y = \frac{1}{x}, 0 \neq x ... Posted in: Mathematics | Date: 24/03/2018 ### Answer: Answer is option C • ## Question: Given the sets A={1,2,3}, B={3,4}, C={4,.5,6}, then \(A\cup (B\cap C)$&nbs...

Posted in: Mathematics | Date: 24/03/2018

• ## Question: The number of proper subsets of the set {1, 2, 3} is

Posted in: Mathematics | Date: 24/03/2018

• ## Question: If a set A has n elements, then the total number of subsets of A is

Posted in: Mathematics | Date: 24/03/2018

• ## Question: The set $A=\{ x : x \in R, x^2=16 \quad and \quad 2x=6 \}$ equals

Posted in: Mathematics | Date: 24/03/2018

• ## Question: The set of intelligent students in a class is

Posted in: Mathematics | Date: 24/03/2018

Answer is option D. Not a well defined collection.

• ## Question: How does soil erosion affect people's lives?

Posted in: Geography | Date: 24/03/2018

Soil erosion decreases the fertility of the land so crop yield decreases.

• ## Question: What gland controls blood sugar levels?

Posted in: Biology | Date: 24/03/2018

Pancreas gland control the sugar levels

• ## Question: Which hormone controls blood sugar levels?

Posted in: Biology | Date: 24/03/2018

Insulin control blood sugar levels

• ## Question: What are the negative effects of soil pollution?

Posted in: Geography | Date: 24/03/2018

Fertility of land decreases, Crops yield decreases, desertification of land takes place.

• ## Question: What is the value of the postfix expression 6 3 2 4 + – *:

Posted in: Computer Science | Date: 24/03/2018

• ## Question: Consider the usual algorithm for determining whether a sequence of parentheses i...

Posted in: Computer Science | Date: 24/03/2018

• ## Question: What is the effect of soil compaction?

Posted in: Geography | Date: 24/03/2018

Decrease in land fertility, decrease in crop yield, desertification of land

• ## Question: How can we reduce water pollution?

Posted in: Geography | Date: 24/03/2018

Decreasing discharge of waste materials in water source, treatment of water to improve its quality, distillation of water.

• ## Question: What does soil pollution affect?

Posted in: Geography | Date: 24/03/2018

Soil pollution decrease fertility of soil, crop yield decreases, desertification of land takes place.

• ## Question: How can soil pollution be harmful to humans?

Posted in: Geography | Date: 24/03/2018

Soil pollution decrease fertility of soil, crop yield decreases, desertification of land takes place.

• ## Question: Process of inserting an element in stack is called ____________

Posted in: Computer Science | Date: 24/03/2018

• ## Question: Which of the following is untrue?

Posted in: Biology | Date: 24/03/2018

• ## Question: Which sentence is untrue with respect to the human body?

Posted in: Biology | Date: 24/03/2018

• ## Question: Which of the following does NOT constitute 90% of dry weight of any food?

Posted in: Biology | Date: 24/03/2018

• ## Question: What is bond dissociation energy

Posted in: Chemistry | Date: 24/03/2018

It is the energy required to break the bond between the two elements

• ## Question: I am a computer science graduate. Can it be okay for me to teach school students...

Posted in: Computer Science,Biology | Date: 24/03/2018

Yes it is OK as long as you have plenty of knowledge about what you are teaching.

• ## Question: What is meant by population composition?

Posted in: Geography | Date: 24/03/2018

Population composition is the characteristics of population based on age, sex, gender, etc

• ## Question: Which gas plants use to make their food?

Posted in: Geography | Date: 24/03/2018

Plants use carbon dioxide to make food

• ## Question: What is bell metal?

Posted in: History | Date: 24/03/2018

Bell metal is an alloy of copper and tin.

• ## Question: What are some examples of acceleration?

Posted in: Physics | Date: 24/03/2018

Centrifugal and centripetal are two types of acceleration.

• ## Question: Can atoms ever die? Please explain.

Posted in: Chemistry | Date: 17/04/2018

No atoms can't die. It can combine with other atoms to form different compounds.

Posted in: Chemistry | Date: 17/04/2018

Quarks are the tiniest particles know. Many quarks combine to form atoms.

• ## Question: What is the Valency of neon?

Posted in: Chemistry | Date: 17/04/2018

Vacancy of neon is zero

• ## Question: What are magnetic lines of force? Roughly trace the magnetic field lines for a b...

Posted in: Physics | Date: 17/04/2018

Magnetic lines of force are imaginary lines of force. Tangent to the lines determine the magnitude of force.

• ## Question: What is the Valency of zinc?

Posted in: Chemistry | Date: 17/04/2018

Vacancy of zinc is 2.

• ## Question: What is meant by the term “Magnetic field lines”? List any two properties of...

Posted in: Physics | Date: 17/04/2018

Magnetic field lines are imaginary lines of force. Tangent to it determines the magnitude of force.

• ## Question: What is smaller than an atom quark?

Posted in: Chemistry | Date: 17/04/2018

Quark is the smallest particles known.

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