$[0/9\mathrm{.}09$ Points$]$

MY NOTES

TIPLER$621.$P$\mathrm{.}045.$

A $4\mathrm{.}7-C$ point charge is located at $x=1\mathrm{.}2m,y=3\mathrm{.}2m,$ and $a-3\mathrm{.}9-C$ point charge is located at $x=1\mathrm{.}9$

$($a$)$ Find the magnitude and direction of the electric field at $x=-3\mathrm{.}1m,y=1\mathrm{.}1m.$

magnitude $$ direction

kN$/$C

$-$

$($b$)$ Find the magnitude and direction of the force on a proton at $x=-3\mathrm{.}1m,y=1\mathrm{.}1m.$

magnitude

N

direction $$

$$