A. The magnitude and direction of the electric field just outside the surface of the conducting shell are given in the problem. Use this to find the net charge of the shell plus point charge. B. What is the charge density on the inner surface of the shell? (Hint: The field in the metal of the shell is zero. Use this plus Gauss' law to find the net charge on the inner surface plus the point charge.) C. Use your answers above to find the charge density on the outer surface of the shell.