The water of a 14' x 48' metal frame pool can drain from the pool through an opening at the side of the pool. the opening is about h = 1.08 m below the water level. the capacity of the pool is v= 3760 gallons, the pool can be drained in t 9.9 mins. po is the pressure of the atmosphere. e is the density of the water

Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.