1. Two electrostatic point charges of +20.0 μC and –30.0 μC exert attractive forces on each other of –125 N. What is the distance between the two charges?    A. 2.08 x 10^-1 m B. 2.08 x 10^1 m C. 2.08 x 10^-5 m D. 2.08 x 10^5 m   2. An electric field of 3279 N/C is produced by a charge of 5.72 ×10^−11 C. For this field strength, what is the distance to the charge?    A. 1.25 x10^2 m B. 1.25 x 10^-2 m C. 1.50 x 10^2 m D. 1.50 x 10^-2 m   3.  Two equal charges are separated by 3.7 × 10^−10 m. The force between the charges has a magnitude of 2.37 × 10^−3 N. What is the magnitude of q on the charges    A. 1.9 x 10 -19 C B. 3.8 x 10 -19 C. C. 5.7 x 10 -19 C D. 7.6 x 10 -19 C

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