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The figure below is a section of a conducting rod of radius

The figure below is a section of a conducting rod of radius R1 = 1.30 mm and length L = 11.00 m inside a thin-walled coaxial conducting cylindrical shell of radius R2 = 10.0R1 and the (same) length L. The net charge on the rod is Q1 = +3.40 x 10^-12 C; that on the shell is Q2 = -2.00Q1. What are the (a) magnitude E and (b) direction (radially inward or outward) of the electric field at radial distance r = 2.00R2? What are (c) E and (d) the direction at r = 5.00R1? What is the charge on the (e) interior and (f) exterior surface of the shell?