Heat Problem!!!! NEED HELP!!! 1. The problem statement, all variables and given/known data In each of the following cases, trace the chain of energy transfer (as heat or as work) as well as changes in internal energy. a. You rub your hands together to warm them one cold day, and they soon become cold again. b. A hole is drilled into a block of metal. When a small amount of water is placed in the drilled hole, steam rises from the hole. 2. Relevant equations I think none 3. The attempt at a solution a) Energy from the friction when you rub your hands together creates heat. When that friction is gone, the heat is cooled down by the surrounding energy. b) The drill creates friction with the block of metal. The friction creates sparks which heats up the block of metal and makes the temperature go up. So when the water touches the bottom of the hole, that heat causes the water to evaporate. Please tell me if that explanation is good enough and if I should add or remove anything.