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3 years ago

A lightbulb 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.

Physics

1 answer:

geniusboy [140]3 years ago

5 0

a) E=Nt=100*(4*3600)=1440000 J

b) E=1200*(5*60)=360000 J

c) Q=E*(100-1.8)/100=1414080 J

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4 years ago

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Answer:

the force will decrease to 3/4 of its original value.

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r is their separation

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while the other charge will be

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3 years ago

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