Two charges $+7\mathrm{.}0C$ and $+19C$ are placed along the $x$ axis, with the first charge at the origin $(x=0)$ and the second charge at $x=+1\mathrm{.}00m.$ Find the magnitude and direction of the net force on $a-7\mathrm{.}0nC$ charge when placed at the following locations below.

a$.$ halfway between the two charges: magnitude of force is $$ mN $,$ and the direction is

$q,$

Select an answer $.$

b$.$ on the $x$ axis at $x=-0\mathrm{.}50m$ : magnitude of force is $$ mN $,$ and the direction is

$].$

c$.$ at the coordinate $(x,y)=(1\mathrm{.}00m,0\mathrm{.}50m)($half a meter above the $+19C$ charge in a direction perpendicular to the line joining the two fixed charges$)$:

Magnitude of force is $$ mN $,$ and the direction is $$ degrees below $-x$ axis.