Charges of 1 10^-6 C and 1 10^-6 C are 1 m apart in free space. The force between them is (k = 8.99 10^9 N m^2 C^-2):

  1. 0.00899 N, repulsive
  2. 0.018 N, repulsive
  3. 0.00900 N, repulsive
  4. 0.00899 N, attractive
Answer

A) 0.00899 N, repulsive

F = kq1q2r^2 = 0.00899 N; like charges repel. SLO P-11-E-07 · Application

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