Do the same calculation for cubes whose edges are $18\mathrm{.}0cm$ long and $4\mathrm{.}0cm$ long.

$18\mathrm{.}0cm$ edge cube $=$

$N*\frac{m^2}{C}$

$4\mathrm{.}0cm$ edge cube $=$

$N*\frac{m^2}{C}$

What is the electric flux $($in $N*\frac{m^2}{C})$ through a spherical surface of radius $2\mathrm{.}0cm$ that is also concentric with the charge distribution?

$N*\frac{m^2}{C}$