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Physics, 30.09.2019 11:20 blackordermember

Alightbulb has a power of 100 w and is used for 4 hours. a microwave has a power of 1200 w and is used for 5 minutes. how much energy is used by the lightbulb? how much energy is used by the microwave? the lightbulb has an efficiency of 1.8%. how much heat energy does the lightbulb produce in 4 hours?

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