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Physics, 22.06.2019 14:20
4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)
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Physics, 23.06.2019 00:00
Based on this activity, is kinetic energy always transformed into potential energy?
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Physics, 23.06.2019 02:10
What is the quantity which is measured by the area occupied below the velocity- time graph?
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Tiffany pours a total of 7 and 1/2 cups of food for her 5 dogs. How many cups of food does each dog...
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