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A heat pump is absorbing heat from the cold outdoors at 5oC and supplying heat to a house at 25oC at a rate of 18,000 kJ/h. If the power consumed by the heat pump is 1.9 kW, the COP of the heat pump is?
a parallel plate capacitor is immersed in sea water. find the ratio of rms conduction current to rms displacement
a heat exchanger is used to heat cold water at 15oc entering at a rate of 2 kgs by hot air at 85oc entering at a rate
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a company studying the productivity of their employees on a new information system was interested in determining if the
after 10 lbhr of the oil is removed from the potato chips in the separation unit what is the mass fraction of oil on
a biconvex ice lens is made so that the radius of curvature of the front surface is 12.3 cm and that for the back is
explain viscous damping with a sketch. provide a model that may be used in studying vibrations. given m 2 b 8 and k
in an ideal dual combustion cycle conditions at the commencement of adiabatic compression are 93 kpa 0.05 m3 and 24degc
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rod ab consists of two cylindrical portions ac and bc eac with a cross sectional area of 1750mm2. portion ac is made of
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a rigid vessel contains 10 kg of steam. the steam is initially at 10 bar and 300degc. after a period of time the
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neglecting with the presence of friction air dragm and other inefficiencies how much gasoline is consumed when a
nbspmgh12mv212iomega21 show that ??v2 2gh1i where ? i imr2 and thus i is and hence the
the arrhenius equation was originally developed for comparing rates of chemical reactions. compare the rates of a
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