4. Two charged particles exert an electrostatic force of 40 N on each other. What will the magnitude of the force be if the distance between the two particles is increased to two times the original distance?

Determine the net electric force acting on a 3.0 µC charge by two charges. The first charge is -2.0 µC and is located 10 cm to the left of the 3.0 µC charge. The second charge is 4.0 µC and is located 8 cm to the right of the 3.0 µC charge.

1. A point charge q1 = -3nC is 40cm away from another point charge q2 = +6nC. Determine the electric force they exert on each other 2. Three point charges are on the x-axis as follows: q1 = 8uC is at x = -5m, q2 = -5uC is at x = 3m and q3 = +9uC is at 7m. Determine the magnitude and direction of the net electric force on q1 due to the other 2 charges.

3. A hollow, conducting sphere is initially uncharged. A positive charge, +9₁, is placed inside the sphere, as shown in the figure below. Then, a second positive charge, +q2, is placed near the sphere but outside it. Which of the following statements describes the net electric force on each charge? +9₂ A. There is a net electric force on +91 but not on +92. B. Both charges are acted on by a net electric force with the same magnitude and in the same direction. C. Both charges are acted on by a net electric force with the same magnitude but in opposite directions. D. There is a net electric force on +q2 but not on +9₁.