Physics, 05.01.2020 19:31 ybetancourt1
Asound has 13 crests and 15 troughs in 3 seconds. when the second crest is produced the first is 2cm away from the source? calculate
a. the wavelength
b. the frequency
c. the wave speed
Answers: 3
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Convection currents are caused by differences in what two things?
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Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)
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Which lists correctly orders nuclear reactions from most radioactive waste generated to least waste generated within a given period of time? o a. radioactive decay, nuclear fission, nuclear fusion o b. radioactive decay, nuclear fusion, nuclear fission o c. nuclear fusion, nuclear fission, radioactive decay o d. nuclear fission, nuclear fusion, radioactive decay
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Asound has 13 crests and 15 troughs in 3 seconds. when the second crest is produced the first is 2cm...
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