Questions:
1) A large parallel-plate capacitor has one plate at z = 0 and maintained at 40 v, while the other plate at z = 2mm is maintained at 0 v. Find the potential between the plates.
2) 20.0 g of ice at a temperature of 0°C is dropped into 160 g of water initially at a temperature 24.0°C. The final equilibrium temperature after all the ice has melted is 12.0°C. Based on this data the heat of fusion of the ice was...?3)1. A heat engine operates between a hot temperature of 500°K and a cold temperature of 200°K. The maximum efficiency of this engine?(please provide equation and explanation)
2. The only way that a heat engine can have an efficiency of 1, is if the engine's cold temperature is? (please provide equation and explanation)