(20 points) A nonconducting rod of length L = 16.5 cm with a non- uniform positive charge distribution of linear charge density 11 = (3.14 x) fc/m, a thin nonconducting rod forms a semicircle of radius R = 5.25 cm with a non-uniform positive charge distribution of linear charge density 12 = (6.28 x) fc/m, and a point charge q = -85.1 μC at a perpendicular distance h = 12.3 cm from the beginning of the rod as shown in the figure below. What are the magnitude and direction of electric field produced at point P, at a horizontal distance a = 9.62 cm from the end rod (P is at the center of the semicircle) (a) due to the rod? (b) due to semicircle? (c) the net electric field (magnitude and direction) at point P due to the point charge, rod, and semicircle? (Hint: ds = Rde, (cos(0))² = (0+ cos(0) sin(0)) + C R