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Two spherical objects with a mass of 7.60 kg each are placed at a distance of 2.93 m apart. How many electrons need to leave each object so that the net force between them becomes zero?
13 years ago

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bobpursley
consider forces

kQ^2/distance^2=GM^2/distance^2

solve for q, then
number electrons=q/e
13 years ago

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