Physics, 23.02.2021 01:00 eweqwoewoji
1. If a wave has a wavelength of 5.5m and a frequency of 45hz, what is its speed?
Answers: 3
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What is a carrier wave and how does it affect what you hear on the radio
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Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?
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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)
Answers: 3
1. If a wave has a wavelength of 5.5m and a frequency of 45hz, what is its speed?...
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