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Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.
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All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction
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If element x has 99 protons how many electrons does it have
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Aperson touches a large chunk of ice with their hand and remarks, βthis is making me cold.β explain what this person is feeling. is the ice transferring βcoldβ to the person? is there a heat transfer occurring? explain.
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Aturbine is spinning at 3400 rpm. friction in the bearings is so low that it takes 16 min to coast t...
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