Aheat pump cycle is used to maintain the interior of a building at 20°c. at steady state, the heat pump receives energy by heat transfer from well water at 9°c and discharges energy by heat transfer to the building at a rate of 120,000 kj/h. over a period of 14 days, an electric meter records that 1000 kw • h of electricity is provided to the heat pump. determine: (a) the amount of energy that the heat pump receives over the 14-day period from the well water by heat transfer, in kj. (b) the heat pump coefficient of performance. (c) the coefficient of performance of a reversible heat pump cycle operating between hot and cold reservoirs at 15°c and 9°c.
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Physics, 22.06.2019 11:10, axxpjr12
Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.
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Physics, 22.06.2019 14:00, tonytashaqua
Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.
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Aheat pump cycle is used to maintain the interior of a building at 20°c. at steady state, the heat p...
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