Task 30870.

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Uploaded: 13.04.2014
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From the surface of the negatively charged sphere separated without initial velocity of the electrons. What will be its speed at a great distance from the ball, if the ball radius R = 1 cm, ball charge 1 nC?

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Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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