A set of four metal spheres, each with +10 nanocouloumbs of charge, are placed in a square configuration whose side is 1.0 centimeter. The spheres are 1.0 g each. The spheres are let go at the same time from rest and are allowed to move. What is the speed of each sphere when they are "infinitely" far apart?
Charge on each sphere is
Length of each side of square is
Mass pf eacj sphere
Initially when all the four spheres are at the corners of a square, total energy of system of spheres is
Finally when the spheres are at infinite distance , total energy of the system of spheres is
Conserving the energy of the system of spheres,
Speed of each sphere when they are infinitely far apart is
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