Forces & Two Charges- Quick question

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Homework Statement


A 2 nC charge is at the origin and a -4nC charge is at x = 1 cm.

a) At what x coordinate is would you place a proton so that it would experience no net force?

Ok I solved for the coordinate in between the two charges, and I got the same answer as my book. However, the book only gives one answer and I think that there should be another place where the force is zero to the left of the origin. Am I correct?


Homework Equations





The Attempt at a Solution

 
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