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October 22, 2014

Homework Help: phYsics

Posted by echem on Tuesday, April 6, 2010 at 12:21am.

Two identical objects each hold a net charge of q = 8e. If the gravitational force between the two objects exactly cancels the electrostatic force between the objects, what is the mass of each object?
Where G: 6.67E-11
Ke=8.99E9

I know the equation is
m=sqrt(ke*q^2/G)
yet when I plug everything in I got 2.52E11 which is incorrect.
Please help, I'm frustrated...

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