A piece of aluminum, with specific heat of 900 J/kg K, loses 450 J of thermal energy, and its temperature changes from 25o C to 20o C. What is the mass of the aluminum

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

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

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.