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Physics, 27.01.2020 07:31 bridgette143375

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.
a) how much energy is used by the lightbulb?
b) how much energy is used by the microwave?
c) the lightbulb has an efficiency of 1.8%. how much heat energy does the lightbulb produce in 4 hours?

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