Particle A (mass = m, charge = Q) and B (mass = m, charge = 5 Q) are released from rest with the distance between them equal to 1.0 m. If Q = 12 ?C, what is the kinetic energy of particle B at the instant when the particles are 3.0 m apart?
A. 8.6 J
B. 3.8 J
C. 6.0 J
D. 2.2 J
E. 4.3 J
Answer: D
Physics & Space Science
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