onsider the uniform electric field

E $=(7\mathrm{.}0+8\mathrm{.}0)103$ N$/$C$.$

$($a$)$

What is its electric flux $($in N $$ m$2/$C$)$ through a circular area of radius $2\mathrm{.}9$ m that lies in the yz$-$plane? $($Enter the magnitude.$)($b$)$

What is its electric flux $($in N $$ m$2/$C$)$ through a circular area of radius $2\mathrm{.}9$ m that lies $45\mathrm{.}0$ above the xy$-$plane? $($Assume that the unit normal vector is