Electric force of repulsion
Question: How many electrons must be removed from each of two 4.6-kg copper spheres to make the electric force of repulsion between them equal in magnitude to the gravitational attraction between them?
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A tiny sphere with a charge of q = +6.4 µC is attached to a spring. Two other tiny charged spheres, each with a charge of ?4.0-µC, are placed in the positions shown in the figure, in which b = 4.1 cm. The spring stretches 5.0 cm from i
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How many electrons must be removed from each of two 4.6-kg copper spheres to make the electric force of repulsion between them equal in magnitude to the gravitational attraction between them?
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What charge (magnitude and algebraic sign) should be fixed to one of the empty corners, so that the total electric potential at the remaining empty corner is 0 V?
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