A positively charged particle is held at the center of a spherical shell. The figure gives the magnitude E of the electric field versus radial distance r. The scale of the vertical axis is set by Es = 8.0 × 10' N/C. Approximately, what is the net charge on the shell? Assume r = 3 cm. ers E, 2r, 3r, 4r, 5r, r (cm) Number i Units

A positively charged particle is held at the center of a spherical shell. The figure gives the magnitude E of the electric field versus radial distance r. The scale of the vertical axis is set by Es = 8.0 × 10' N/C. Approximately, what is the net charge on the shell? Assume r = 3 cm. ers E, 2r, 3r, 4r, 5r, r (cm) Number i Units