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grandymaker [24]
3 years ago
11

Energy that a microwave use to heat food?

Physics
1 answer:
yanalaym [24]3 years ago
6 0
Electromagnetic energy
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According to coulombs law, the force between two charges is express as

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Note the constant K has a value 9*10^9

Hence for a charge q1=7.10nC=7.10*10^-9, q2=4.42*10^-9 and the distance r=1.62m

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F=[(9×10^9) ×(7.10×10^-9) ×(4.42×10^-9)] /(1.62^2)

F=(282.4×10^-9)/2.6244

F=107.6×10^-9N

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