Find how many excess electrons must be present

Reference no: EM13704770

Question: Two small spheres spaced 25.0 cm apart have equal charge.

Part A: How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 1.80 x

10^-21 N?

Can someone please explain what the heck is going on?

Reference no: EM13704770

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