(a) A small Styrofoam bead with a mass of 14.2 g and a charge of −0.754 μC is suspended in equilibrium above the center of a large, horizontal sheet of plastic that has a uniform charge density on its surface. Find the charge per unit area on the plastic sheet (in μC/m2). μC/m2 (b) What If? What are the magnitude and direction of the acceleration of the piece of Styrofoam if its charge is doubled? (Enter the magnitude in m/s2.) magnitude m/s2 direction
