Aheat pump operates on a carnot heat pump cycle with a cop of 13. it keeps a space at 24°c by consuming 2.15 kw of power. determine the temperature of the reservoir from which the heat is absorbed and the heating load provided by the heat pump.

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

The solid that is formed and usually sinks to the bottom of a solution is the

Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.