An inventor claims to have created a new unpowered machine. He says the machine can push with an output force of 100 newtons for 1 meter if you apply an input force of 50 newtons for 0.5 meter. Could this machine work? Explain why or why not.

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.