$($a$)$ What magnitude point charge $($in C$)$ creates a $13,000\frac{N}{C}$ electric field at a distance of $0\mathrm{.}270m?$

C

$($b$)$ How large $($in N$/$C$)$ is the field at $10\mathrm{.}0m?$

$\frac{N}{C}$