4 Define the terms potential energy and kinetic energy. Give two examples of each.
State the law of the conservation of
mechanical energy. How is the law illustrated
by
A. the swing of a simple pendulum
B. the energy of a falling orange?
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Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.