Physics, 01.03.2021 22:10, 19alexanderetha

We assume the foam plate has a positive charge when rubbed with paper towels. Lift the pan away from the charged plate using the styrofoam cup. Briefly touch the rim of the pan to neutralize it. Place the neutralized pan on the plate and observe the tape rise. When the pan is on the plate, the rim of the plate has a . This means that the pan base is charged because the net charge on the pan is . You know that this must be the case because as you lift the pan with the cup away from the plate, the tape on the rim goes down.

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We assume the foam plate has a positive charge when rubbed with paper towels. Lift the pan away fro...