Anybody bored and wants to join my zoom

Aballet student who learns with the of his instructor is demonstrating learning.

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

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.