To make ice, a freezer that is a reverse carnot engine extracts 37 kj as heat at -17°c during each cycle, with coefficient of performance 5.8. the room temperature is 26.9°c. how much (a) energy per cycle is delivered as heat to the room and (b) work per cycle is required to run the freezer?

In science and physics what is the standard unit of measure for speed?

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

The discovery of the electron as a subatomic particle was a result of