- 2Q € + 2Q X A semicircle of radius a is in the second and third quadrants, with the center of the curvature at the origin. Positive charge +2Q is distributed uniformly around the bottom half of the semicircle, and negative charge -2Q is distributed uniformly around the top half of the semicircle as shown in the figure. What is the direction of the net electric field at the origin produced by this distribution of charge? x direction

At each point on the surface of the cube shown in the figure the electric field is parallel to the z axis. The length of each edge of the - 49k N/C and on the bottom face it is E = + 24k N/C . cube is 3.5 m. On the top face of the cube the electric field Ễ Determine the net charge contained within the cube. = - x y Number i -2.70E3 Units nC

A hollow metal sphere has 5 cm and 9 cm inner and outer radii, respectively, with a point charge at its center. The surface charge density on the inside surface is -150 nC/m². The surface charge density on the exterior surface is +150 nC/m² Part E What is the strength of the electric field at point 12 cm from the center? Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) E = Di μA Submit Xb a b X 10n Value Units You have already submitted this answer. Enter a new answer. No credit lost. Try again. Previous Answers ?

у P Sheet 2 Sheet 1 X a a +20 -30 C 20 are placed parallel to