$[3/4$ Points$]$

DETAILS

MYNOTES

$q_a$

$q_b{q}_c$

$($a$)$ Find the electric field at the location of $q_a.$

magnitude $$ N$/$C

direction $($counterclockwise from the $+x-$axis$)$

$($b$)$ What is the force on $q_a,$ given that $q_a=+1,50nC?$

magnitude $\frac{1}{W}$ What is Coulomb's law when you know the electric field? N

direction $-($counterclockwise from the $+x-$axis$)$