Question: Two pith balls are charged by touching one to a glass rod that has been rubbed with a nylon cloth and the other to the

Two pith balls are charged by touching one to a glass rod that has been rubbed with a nylon cloth and the other to the cloth itself.
a. What sign will the charge on each pith ball have? Explain.
b. Will the two pith balls attract or repel one another? Explain.

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