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OpenStudy (anonymous):
An attractive force of 7.2 N occurs between two charges that are 0.20 m apart. If one charge is 4.0 μC, what is the other charge? 4.0 μC 2.0 μC +2.0 μC +8.0 μC
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OpenStudy (anonymous):
@Michele_Laino @IrishBoy123
OpenStudy (irishboy123):
Coulumb's law again:p F = k q1 q2 / r^2 "attractive force" so charges of oppo sign.
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