A Particle (Charge = Q) Is Kept in a Fixed

question 55

Multiple Choice

A particle (charge = Q) is kept in a fixed position at point P, and a second particle (charge = q) is released from rest when it is a distance R from P. If Q = +2.0 mC, q = −1.5 mC, and R = 30 cm, what is the kinetic energy of the moving particle after it has moved a distance of 10 cm?

• A) 60 kJ
• B) 45 kJ
• C) 75 kJ
• D) 90 kJ
• E) 230 kJ

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