False True under certain conditions Unable to discern given the problem descript

Question

False True under certain conditions Unable to discern given the problem description Both balls left the ground with the same kinetic energy. True False True under certain conditions Unable to discern given the problem description To the right is a PV diagram for an ideal gas in which its pressure tripled from a to b when 700 J of heat was put into the gas. How much work is done by the gas? 700 J 0 J It depends on the change in temperature Unable to discern given the problem description When a wheel turns half of one complete rotation, the angle (in radians) that it has turned through is closest to 180 36 3 0.5 Depends on the radius of the wheel.

Explanation / Answer

(30)
As work is defined as, W = P * V

As we see in pv diagram, V = 0, therefore work done in this process = 0

Correct option :- (B)


31)

For 1 complete revolution, Angle = 2* radians

For 1/2 revolution = rad is approximately = 3

So Correct option :- (C)

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