Packing material made of pieces of foamed polystyrene
Chapter 21, Problem 21.83(choose chapter or problem)
Packing material made of pieces of foamed polystyrene caneasily become charged and stick to each other. Given thatthe density of this material is about 35 kg/m3, estimatehow much charge might be on a 2.0-cm-diameter foamedpolystyrene sphere, assuming the electric force between twospheres stuck together is equal to the weight of one sphere.
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