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Physics 9 Online
OpenStudy (anonymous):

The charges on two metallic balls are 5.0 and 7.0 coulombs respectively. They are kept 1.2 meters apart. What is the force of interaction between the two? (k = 9.0 x 10^9 newton·meters^2/coulomb^2) A) 2.2 x 10^11 newtons B) 4.1 x 10^-7 newtons C) 5.0 x 10^11 newtons D) 7.0 x 10^-7 newtons

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