Asmall glass ball rubbed with silk gains a charge of 2.0 uc. the glass ball is placed 12 cm from a small charged rubber ball that carries a charge of -3.5 uc. a. what is the magnitude of the electric force between the two balls?

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.