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Homework Statement
http://postimage.org/image/cky823nof/ [Broken]
Homework Equations
E=kq/r^2
The Attempt at a Solution
I figured I would just find the electric field produced at point * by each individual charge and then add them. For example if I were to set E1 to be the top molecule the field produced by 2e would be
E1=k2e/(R^2+0.25) where r = √(R^2 + 0.5^2)
so E=k[(q1/r1^2)+(q2/r2^2)+(q3/r3^2)+(q4/r4^2)]
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