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Physics 9 Online
OpenStudy (anonymous):

Two metal balls have charges of 7.1 * 10ÈÒ coulombs and 6.9 * 10ÈÒ coulombs. They are 5.7 * 10ȹ meters apart. What is the force of interaction between the two balls? (k = 9.0 * 10© newton·metersÆ/coulombÆ)

OpenStudy (anonymous):

1.4 newtons

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