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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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Answers: 1
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Alightbulb has a power of 100 w. and is used for 4 hours. a microwave has a power of 1200 w and is u...
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