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Physics, 22.06.2019 02:30
If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?
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Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.
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Physics, 22.06.2019 19:30
What you see with your eyes is a form of energy. a. light b. heat c. chemical d. electrical
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If a voltmeter has a less than ideal resistance, say 1 MΩ, and is used to measure the voltage across...
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