How to calculate the rate of heat transfer
An electric motor draws a current of 10 amp with a voltage of 110V. The output shaft develops a torque of 10.2 N-m and a rotational speed of 1000 rpm. For steady-state operation, determine the rate of heat transfer (in kW).
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A 90% confidence interval for the MPG of the Ford C-Max is (40.59, 45.01). This interval is based on n = 10. If we computed a 90% confidence interval based on a new sample of n = 15, how would the new interval compare to (40.59, 45.01)?
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How much work must be done by a Carnot refrigerator to transfer 1.0 J as heat (a) from a reservoir at 1.1°C to one at 28°C, (b) from a reservoir at -74°C to one at 28°C, (c) from a reservoir at -150°C to one at 28°C, and (d
A compressor is used to pressurize pure oxygen for respiratory assistance applications. Determine the maximum outlet pressure assuming isentropic compressor
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