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Problem 1: (20 points) A ball hangs at an angle 0 = 20. relative to the vertical 20' in the presence of a uniform electric

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Problem 1: (20 points) A ball hangs at an angle 0 = 20." relative to the vertical 20' in the presence of a uniform electric field that points to the right and has a magnitude of 1.0 x 105 . 20 (a) What is the surface charge density that gives rise to the electric field? (b) If the ball has a mass of 5.0 [g], what is the charge on the ball? (c) How many elementary charges does this correspond to

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