Given two particles with $Q=2\mathrm{.}40-C$ charges as shown in the figure below and a particle with charge $q=1\mathrm{.}34{10}^{-18}C$ at the origin. $($Note: Assume a

reference level of potential $V=0$ at $r=.)$

$($a$)$ What is the net force $($in $N)$ exerted by the two $2\mathrm{.}40-C$ charges on the charge $q?($Enter the magnitude.$)$

N

$($b$)$ What is the electric field $($in N$/$C$)$ at the origin due to the two $2\mathrm{.}40-C$ particles? $($Enter the magnitude.$)$

N$/$C

$($c$)$ What is the electrical potential $($in $kV)$ at the origin due to the two $2\mathrm{.}40-C$ particles?

kV

$($d$)$ What If$?$ What would be the change in electric potential energy $($in J$)$ of the system if the charge $q$ were moved a distance $d=0\mathrm{.}400m$ closer to either of

the $2\mathrm{.}40-C$ particles?