How does Newton's cradle demonstrate Newton's three laws of motion? I have to use all of these vocab words in my force, mass, inertia, speed, momentum, net force, gravity, weight, friction, Newton, action force, reaction force.​

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.