Use the kinetic energy formula KE = 0.5 mv2to complete the practice problems below. Remember, 1 J = 1 kg m2s2Also, velocity is v2KE / (0.5 x m)and mass is m = KE / (0.5 x v2What is the kinetic energy of a 150 kg object that is moving at a speed of 15 m/s?

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.