Why is a heat pump called a heat pump?

What will be an ideal response?


It moves heat from a low temperature heat source to a higher temperature heat sink

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In a broad sense, America was

A. a revolutionary force from the day of its discovery by Europeans. B. a place that nurtured a love for Britain. C. completely dependent on Britain for economic support. D. a place where no new ideas took shape. E. essentially a conservative society.

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1/4 + 1/5 + 1/2 = ____________________/20.

Fill in the blank(s) with the appropriate word(s).

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Which of the following is not true of carbon monoxide?

A. It is corrosive. B. It is colorless. C. It is poisonous. D. It is odorless.

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The number of movable blades on a power shear is

a. one c. three b. two d. four

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