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Find the interaction force between two w...

Find the interaction force between two water molecules separated by a distance `l = 10 mm` if their electric moments are oriented along the same straight line. The moment of each molecule equals `p = 0.62.10^(-29) C.m`.

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The correct Answer is:
`F=(3p^(2))/(2piepsi_(0)l^(4))=2.1.10^(-20)N`
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