Both the refrigerator and the heat pump take in heat and expel it at a higher temperature. Why don't they have the same Coefficient of Performances?
What will be an ideal response?
The COP is "what you want" divided by "what is costs." In a refrigerator you "want" the absorbed heat but in the heat pump you "want" the expelled heat. Hence the COPs are different.
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a. 0.977 c. 1.05 b. 0.954 d. 1.02
The magnetic quantum number can have any integer value ranging from
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A ball falls to the ground from height h and bounces to height h'. Momentum is conserved in the ball-earth system
a. no matter what height h' it reaches. b. only if h' < h. c. only if h' = h. d. only if h' > h. e. only if h' ³ h.
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