A room air conditioner has a coefficient of performance of 29 on a hot day, and uses

Question:

A room air conditioner has a coefficient of performance of 29 on a hot day, and uses 850 W of electrical power.
(a) How many joules of heat does the air conditioner remove from the room in one minute?
(b) How many joules of heat does the air conditioner deliver to the hot outside air in one minute?
(c) Explain why your answers to parts (a) and (b) are not the same