A rubber rod is rubbed with fur, transferring electrons to the rod. The rod is then brought near the 100-cm end of an uncharged metal meterstick that is suspended from its center by a nonconducting string. The meterstick begins to rotate toward the rod. (a) Explain why the meterstick begins to rotate, and (b) find the charge on the meterstick before, during , and after the rod is brought near one end

A rubber rod is rubbed with fur, transferring electrons to the rod. The rod is then brought near the 100-cm end of an uncharged metal meterstick that is suspended from its center by a nonconducting string. The meterstick begins to rotate toward the rod. (a) Explain why the meterstick begins to rotate, and (b) find the charge on the meterstick before, during , and after the rod is brought near one end