Posted by abbigail on Sunday, November 15, 2009 at 10:23pm.
First, see if you can get an equilibrium postition between the two charges.
Figure the force from each of the two charges, and set them equal (they will be in opposing sides, so this is valid).
K*7.2*3.0/x^2 = k*6.7*3.2/(32-x)^2
find x
I discarded the negative signs as they are on both sides, put them in if you wish.
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