Which two objects have stored energy?
A) a ball rolling on the ground
B) a small rock sitting on top of a big rock
C) a stretched rubber band
D) a stone lying on the ground

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

How can a cyclist's acceleration change even if its velocity remains constant?

A750 n force is applied to an object. if the object travles with a constant velocity of 18.2 m/s calculate the power exerted by object