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An electron of mass 9.11×1031 kg has an initial speed of 3.00×105 m/s. It travels in...

An electron of mass 9.11×1031 kg has an initial speed of 3.00×105 m/s. It travels in a straight line, and its speed increases to 7.00×105 m/s in a distance of 5.00 cm. Assuming its acceleration is constant, (a) determine the force exerted on the electron and (b) compare this force with the weight of the electron, which we neglected.

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