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9. This question is based on the demonstration carried out during our first class. a) We have a negatively charged rubber rod and a neutral pith ball (see diagram below) that are far apart and dont affect each other. The rubber rod is then brought near the pith ball but does not touch it Will the pith ball be repelled, attracted, or not affected? Explain your answer in detail b) Now assume that we do the demonstration again starting from scratch and that the negatively charged rubber rod touches the neutral pith ball. Afterwards, the rubber rod is then moved a small distance away from the pith ball. Will the pith ball be attracted to the rubber rod, repelled by the rubber rod, or unaffected? Explain your answer in detail.

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