What would the temperature need to be in degrees Celsius for it to have a pressure of 250kPa? Answer and explanation please.​

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.