Engineering, 27.03.2020 00:19 Oliviapuffinburger33
You may assume all the lost power from the above 80W, 75% efficient motor is transferred in the form of heat to the surrounding air. Suppose the motor is enclosed in a box 3 feet by 2 feet by 4.5 feet and runs on an intermittent cycle for 2 minutes before a fan turns on. How much thermal energy (in units of calories) is released to the space surrounding the motor in two minutes? g
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You may assume all the lost power from the above 80W, 75% efficient motor is transferred in the form...
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