Physics!!!
posted by Help .
The electric field everywhere on the surface of a charged sphere of radius 0.260 m has a magnitude of 545 N/C and points radially outward from the center of the sphere.
(a) What is the net charge on the sphere?

Use Gauss' Law.
The total flux is
4*pi*R^3 *E
Gauss' Law tells you how to relate the flux to the total charge.
Flux = Q/epsilon0
epsilon0 = 8.854*10^12 C^2/(n*m^2) 
4*pi*R^2 *E

Yes, Damon is right. Typo exponent error. Thanks for catching it, DC