Two tiny conducting spheres are identical and carry charges of -25 JC and -75 JC . The spheres are brought into contact and then separated to a distance of 3.5 cm. Determine the magnitude of the force that each sphere now experiences. O-9.2 x 1013 N 4.6 x 1013 N O-4.6 x 1013 N 1.4 x 10^4 N OON 1.8 x 10^4 N