At what separation will two charges, each of magnitude $6\mathrm{.}40\backslash$mu C$,$ exert a force of $3\mathrm{.}60$ N on each other? Give your answer in meters. $($k $=1/4\backslash$pi $\backslash$epsi $0=9\mathrm{.}00\backslash$times $109$ N $$ m$2/$C$2,1\backslash$mu C $=10-6$ C$)$

In the figure below, charge q$1=-2\mathrm{.}30$ nC is placed on the x$-$axis at x$=-0\mathrm{.}200$ m and charge q$2=3\mathrm{.}30$ nC is at the origin $.$ What is the magnitude of the electric field in N$/$C $($Newton$/$Coulomb$)$ at x$=+0\mathrm{.}300$ m on the x$-$axis? k $=9\mathrm{.}00$ x $109$ N$$m$2$C$2$

In the above problem, what is the direction of the electric field at the specified point?

Question $4$ options:

to the $+$x direction

to the $+$y direction

to the $-$x direction

to the $-$y direction