$($a$)$ If $0$ is $32,$ and the magnitude of the acceleration is $2$ x $1017$ m$/$s$^2,$ what is the magnitude of a$?$

i

m$/$s$^2$

$($b$)$ What is the magnitude of the radiative electric field at the indicated observation location, if the magnitude of is $0\mathrm{.}025$ m$?$