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Sergio039 [100]
3 years ago
12

A reversible refrigerator operates between a low temperature reservoir at TL and a high temperature reservoir at TH . Its coeffi

cient of performance is given by
Engineering
1 answer:
Anna11 [10]3 years ago
7 0

Answer

TL/TH- TL

Because we know that power coefficient is. = QL/QH-QL

=so using this for performance we have

=>Perf= TL/(TH-TL)

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A heavy ball with a weight of 150 N is hung from the ceiling of a lecture hall on a 4.0-m-long rope. The ball is pulled to one s
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The tension in the rope at the lowest point is 270 N

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T = W + F

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