Tutoring with Seemant Shekhar

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C is the correct answer. Join PS and PR. ∆PRT ~∆SQT. Use the similar property of triangle to find RT.

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The Gibbs free energy of the system is a state function because it is defined in terms of thermodynamic properties that are state functions. The change in the Gibbs free energy of the system that occurs during a reaction is therefore equal to the change in the enthalpy of the system minus the change in the product of the temperature times the entropy of the system.

ΔG = ΔH - Δ(TS)

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Definition: A magnetic circuit having two or more than two paths for the magnetic flux is called a parallel magnetic circuit. Its behavior can be compared to the parallel electric circuit.The parallel magnetic circuit contains different dimensional areas and materials having various numbers of paths.

 

 

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In a ring-shaped electromagnet with a small air gap, the magnetic field or flux is almost entirely confined to the metal core and the air gap, which together form the magnetic circuit. In an electric motor, the magnetic field is largely confined to the magnetic pole pieces, the rotor, the air gaps between the rotor and the pole pieces, and the metal frame. Each magnetic field line makes a complete unbroken loop. All the lines together constitute the total flux. If the flux is divided, so that part of it is confined to a portion of the device and part to another, the magnetic circuit is called parallel. If all the flux is confined to a single closed loop, as in a ring-shaped electromagnet, the circuit is called a series magnetic circuit.

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AutoCAD is a 2-D and 3-D computer-aided drafting software application used in architecture, construction, and manufacturing to assist in the preparation of blueprints and other engineering plans. Professionals who use AutoCAD are often referred to as drafters.

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View the image to know the answer.

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As mentioned in this question we have to comment on the position of stone just after it is released, so motion of stone should not be taken into consideration.

Hence, after 8 seconds position of both balloon and stone will be at [1/2 x a x (t)^2] =40 m

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Answer should be A.

As it is mentioned that the car is brought to rest uniformly, the retardation ( negative acceleration) is constant.

 

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Answer should be (D).

Number of students in group D is more then number of students in group A or group C. But there is no information about the weight of students in group A or group C. Hence answer is D.

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Answer should be 6 that is in option (d).