Two spherical objects are separated by a distance of m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each object experiences an electrostatic force that has a magnitude of N. How many electron did? It take to produce the chargeon one of the objects?
A proton is released in a uniform electric field, and it experiences an electric force of toward the south. What are the magnitude and direction of the electricfield? The equation is E=f/q, but there is only one number and three variables. What numbers go in the other two?