Task id16498
Two identical balls with masses m1 = m2 = m = 600 g and radii R1 = R2 = R = 2 cm have identical negative charges. Find the surface density of electric charges if it is known that the Coulomb repulsive force acting on the balls is balanced by the force of universal gravity. The distance between the balls is large compared to their radii.
Detailed solution. Format gif
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