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838
838 is offline
#3
Feb11-08, 04:08 AM
P: 13
So if I'm understanding you correctly, it should look like this:

k*(q1q3)/a^2=k*(q2q3)/(10+a)^2 since a < 0. I think...

So we get a = 4.14

To test this, I can calculate the force between q1 and q3 and match it with q2 and q3, since they should be equal.

So, k*(q1q3)/(4.14^2) = 23.31k
and k*(q2q3)/(10-4.14)^2=23.31k.

Should be correct. Any errors?

Thanks.