Question: 2 1 . 6 * Two small spheres spaced 2 0 . 0 c m apart have equal charge. How many excess electrons must be

21.6* Two small spheres spaced 20.0cm apart have equal charge.
How many excess electrons must be present on each sphere if the mag-
nitude of the force of repulsion between them is 3.3310-21N?
21.6* Two small spheres spaced 20.0cm apart have equal charge. How

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