What is the coefficient of performance of heating for the electric blanket in Figure 21.39? Figure 21.39
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What is the coefficient of performance of heating for the electric blanket in Figure 21.39?
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Figure 21.39 A setup that converts mechani- cal energy (from the motor) to thermal energy. (a) motor (b) generator electric blanket out W >0 Lout 1 height-out 0 1 1 length kyTou 1 kT out kgT
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