Need with a screw is most closely related to a a. pulley b. wedge c. wheel and axle d. inclined plane (ramp)

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario

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.