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2a. A charge of -5.0 uC is distributed uniformly around a ring 1.0 m in radius with a point charge of +3.0 °C at the center oPlease explain in complete detail. I do not understand how these equations are used, or how they would look with different values. Thank you!

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2(a) work done = change in PE Wa Ki GSMC)*(3 MC) KX(-5 uc)(3MC) Im V12+ 12 m W =_9x109x15x10-12 [ 1 / 1] = 40 mJ Answer (a) 2

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