A particle of charge Q is fixed at the origin of an xy coordinate system. At t 0 a
Chapter 21, Problem 52(choose chapter or problem)
A particle of charge Q is fixed at the origin of an xy coordinate system. At t 0 a particle (m 0.800 g, q 4.00 mC) is located on the x axis at x 20.0 cm, moving with a speed of 50.0 m/s in the positive y direction. For what value of Q will the moving particle execute circular motion? (Neglect the gravitational force on the particle.) 53
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