Question: A metal sphere is initially uncharged. After being touched by a charged rod, the metal sphere is positively charged. (a) Is the mass of the

A metal sphere is initially uncharged. After being touched by a charged rod, the metal sphere is positively charged.
(a) Is the mass of the sphere larger, smaller, or the same as before it was charged? Explain.
(b) What sign of charge is on the rod?

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