First, convert watts to kilowatts.
500w/1000= .5 kW per hour
.5*4 hours= 2kwh*365 days= 730 kWh
The answer is 730 kwh per year
Answer:
1. C
2. D or C
3. B
4. Heat will be transferred through molecular collisions from the hotter system to the cooler system.The thermal energy will flow in that direction until the two objects are at the same temperature.
5. The strawberries will start to get colder and freeze.
Hope this helps