Question: Solve Problem 1: (10pts) A charged ball B (charge |QB| =1 UC, luC is 10 C) with a mass of 0.15 kg is sliding down

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Problem 1: (10pts) A charged ball B (charge |QB| =1 UC, luC is 10" C) with a mass of 0.15 kg is sliding down a vertical rod and comes to rest at a distance of r above a fixed charged ball A (charge |QA| = 5 JC). a) Draw a free body diagram for ball B. Label all forces clearly. (3pts) CO A b) Calculate the distance r (4pts) r c) What can you say about the signs of QA and QB (3pts) opposite signs same sign we cannot tell Explain why below

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