Homework Answers
a) electric force = kq1q2 / r^2
where q1,q2 are the charges
r = separation
F = 9*10^9*(10*10^-6)^2 / 1^2
= 0.9 N
b) accleration = Force / mass
= 0.9 / 1 = 0.9 m/s2
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