Physics, 29.12.2019 17:31, jtoole5341

Suggest a way that you could determine whether a silver spoon is made out of pure silver or a mixture of metals

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Physics, 22.06.2019 07:50, babbybronx

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?

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Physics, 22.06.2019 12:10, lololololol12555

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Physics, 22.06.2019 14:20, jeny89

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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Suggest a way that you could determine whether a silver spoon is made out of pure silver or a mixtur...