Coulomb's Law: Two equally charged tiny spheres of mass 1.0 g are placed 2.0 cm apart. When released, they begin to accelerate away from each other at 414 m/s2. What is the magnitude of the charge on each sphere, assuming only that the electric force is present? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A. 140 nC
B. 120 nC
C. 95 nC
D. 75 nC
Answer: A
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