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September 3, 2014

Homework Help: Plz Help Physics

Posted by Lauren on Sunday, February 4, 2007 at 10:37pm.

We know that the negative charge on the electron and the positive charge on the proton are equal. Suppose, however, that these magnitudes differ from each other by 0.00011%. With what force would two copper pennies, placed 1.4 m apart, repel each other? Assume that each coin contains 3 1022 copper atoms. (Hint: A neutral copper atom contains 29 protons and 29 electrons.)(From your answer, it should be obvious that the magnitude of the charge on a proton and the charge on an electron cannot possibly differ by as much as the given percentage.)



I will be happy to critique your thinking or work on this. The charge on the electron and proton are not equal, they are opposites.

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