A particle of charge +3.47 × 10-6 C is 17.9 cm distant from a second particle of charge -1.71 x 10-6 C. Calculate the magnitude of the electrostatic force between the particles. Number Units

Q3) Two identical conducting small spheres are placed with their centers 0.30 m apart. One is given a charge of 12.0 nC, and the other is given a charge of -18.0 nC. (a) Find the electric force exerted on one sphere by the other.

1-Dimensional forces Three fixed particles exist in a straight line, The first particle is of charge 5.0 10-6 C. The second particle is of charge -5.0 10-6 C and located 20.0 cm to the right of the first charge. The Third particle is of charge -7.5-10-6 C and located 15.0 cm to the left of the first charge. (a) What force do they exert on a fourth particle of charge -2.5 10-6 C that is 13cm to the right of the first charge? (Include magnitude and direction) (b) What is the force of the fourth particle is instead it had a charge of 3.12-10-C and is still located at 13cm to the right of the first charge? (Include magnitude and direction) (a) (b) jou