7. [-/6.66 Points] DETAILS SERPSE9 23.P.035. Three point charges are arranged as shown in Figure P19.13. 5.00 nC 0.300 m 0.100 m -3.00 nC Figure P19.13 (a) Find the vector electric field that the q = 6.00 nC and -3.00 nC charges together create at the origin. N/Ci + N/C ] (b) Find the vector force on the 5.00 nC charge. HN i + HN j 8. [-/6.66 Points] DETAILS SERPSE9 23.P.038. A uniformly charged disk of radius 35.0 cm carries a charge density of 6.50 x 10 3 C/m. Calculate the electric field on the axis of the disk at the following distances from the center of the disk. (a) 5.00 cm MN/C (b) 10.0 cm MN/C (c) 50.0 cm MN/C (d) 200 cm MN/C 9. [-/6.66 Points] DETAILS SERPSE9 23.P.039.MI.FB. A uniformly charged ring of radius 10.0 cm has a total charge of 73.0 uC. Find the electric field on the axis of the ring at the following distances from the center of the ring. (Choose the x-axis to point along the axis of the ring.) (a) 1.00 cm i MN/C (b) 5.00 cm i MN/C (c) 30.0 cm i MN/C (d) 100 cm i MN/C Need Help? Master It