How are leds more efficient than incandescent lights?

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

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.

The mantle is made up of which structural zones?