What is the purpose of a heat pump?
a) a heat pump uses work to transfer energy by heat from...
Physics, 20.01.2020 17:31 simiyi1983
What is the purpose of a heat pump?
a) a heat pump uses work to transfer energy by heat from a colder environment to a warmer environment.
b) a heat pump uses work to transfer energy by heat from a warmer environment to colder environment.
c) a heat pump does work by using heat conveying energy from a colder environment to a warmer environment.
d) a heat pump does work by using heat conveying energy from a warmer environment to a colder environment.
Answers: 3
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An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.
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Asystem containing an ideal gas at a constant pressure of 1.22ร10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?
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