Posted by **Sejul** on Sunday, March 27, 2011 at 4:28pm.

in an experiment using Coulomb's apparatus, a sphere with a charge of 3.6 x 10^-8 C is 1.4 cm from a second sphere of unknown charge. The force between the spheres is 2.7 x 10^-2 N. What is the charge of the second sphere?

I get 1.3 x 10^-4 C, but the answer is supposed to be 1.6 x 10^-8. Any possibility the book has a misprint? Where did I go wrong?

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