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A charge Q is transferred from an initially uncharged plastic ball to an identical ball 24...

A charge Q is transferred from an initially uncharged plastic ball to an identical ball 24 cm away. The force of attraction is then 17 mN. How many electrons were transferred from one ball to the other?

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Answer #1

Concept - find the magnitude of charge using Coulomb’s law of force between charges and use that to find the number of electrons removed as shown below

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