A particle of charge q is fixed at point P, and a second
Chapter , Problem 45(choose chapter or problem)
A particle of charge q is fixed at point P, and a second particle of mass m and the same charge q is initially held a distance r1 from P.The second particle is then released. Determine its speed when it is a distance r2 from P. Let q $ 3.1 mC, m $ 20 mg, r1 $ 0.90 mm, and r2 $ 2.5 mm
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