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The question is at the bottom of the picture. Please provide full steps on the “along the x-axis” part.
Consider a set of 4 charges arranged as below q1 -2q at (0,-2) 2q at (0,0) 3q at (-2,2) q4 at (4,2) Ti 32 1 42 C2 +4 What charge should q4 have in order for the net force on q2 to be along the x-axis? What is the magnitude of the net force in that case?
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Ans: In this problem we used Coulomb's law and some basic vector algebra to solve..

ns 43 。 du-y@)2rC2)2-120 Hch e dı= 2 : に2) OAy(Y) 2) Fy 41 (o,-2 F3 e-ton(2)三 ygs@fG-Ο.707

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