1. A 50 kg child jumps into a small pool of water through a distance of 3 m and aquires 1000 J of kinetic energy. Assuming all of this energy goes into heating 10 kg of water in the pool, what is the change in temp of the water?
2. Theoretically the most efficient engine possible is:
a, porsche carrera special engine, b. carnot cycle heat engine, c. cummins diesel d. wankel engine