A small plastic bead with a mass of 14.8 g and a charge of −0.702
µC is suspended in equilibrium above the center of a large, horizontal sheet of rubber that has a uniform charge density on its surface. Find the charge per unit area on the rubber sheet (in µC/m2).
µC/m2
(b)
What If? What are the magnitude and direction of the acceleration of the piece of plastic if its charge is doubled? (Enter the magnitude in m/s2.)
magnitude ? m/s2
direction ?