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A positive charged thin cylindrical shell of lenght 10 m and radius 50 mm has no...

A positive charged thin cylindrical shell of lenght 10 m and radius 50 mm has no end caps and a uniform surface charge density of 5×10^-9 C/m^2.
1.What is the charge on the shell?
2.Determine the electric field magnitude far from either end of the shell at r=49 mm and also at r=51 mm,where r is the radial distance from the long central axis of the shell.

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