Two masses have the same charge, $30$ microColoumbs. One is placed at $(0,3$ m$)$ and the other

is placed at $(4$m$,0),$ so they are on the corners of a $3-4-5$ triangle.

a$.$ Find the magnitude of the electric force on the charge at $(4$m$,0)$

$($hint: Use Coulomb$$s Law$)$

b$.$ Find the x and y components for this force. $($hint: it helps to draw the force$)$

c$.$ How do your answers in $($b$.)$ change if the charge at $(0,3$ m$)$ is negative?

$($hint: opposite charges attract$)$