A cylindrical shell of radius 8.6 cm and length 264 cm has its charge density uniformly dis- tributed on its surface. The electric field intensity at a point 25.8 cm radially outward from its axis (measured from the midpoint of the shell ) is 58000 N/C. Given: ke = 8.99 × 109 N · m2/C2 . What is the net charge on the shell? Answer in units of C.