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How much heat energy is produced by an electric heater of 1 kilowatt power in 5 minutes |
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Answer» pls MARK me as BraniliestExplanation:POWER of heater P=5 kW=5000 W=5000 sJ TIME of operation t=15 min=15×60=900 sThus energy SPENT E=Pt=5000× sJ ×900 s=4.5×10 6 J |
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