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Question: in the figure particles 2 and 4 of charge e...

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In the figure particles 2 and 4, of charge –e, are fixed in place on a y axis, at y2 = -8.16 cm and y4 = 4.08 cm. Particles 1 and 3, of charge –e, can be moved along the x axis. Particle 5, of charge +e, is fixed at the origin. Initially particle 1 is at x1 = -8.16 cm and particle 3 is at x3 = 8.16 cm. (a) To what x value must particle 1 be moved to rotate the direction of the net electric force F→net on particle 5 by 30 ˚ counterclockwise? (b) With particle 1 fixed at its new position, to what x value must you move particle 3 to rotate back to its original direction?

3 4 2

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