This question has part $($a$)$ and $($b$).$ You have to answer both $($a$)$ Charge Q$1$ of $25$C is at the origin. Charge Q$2-10$C at X$=2$m and charge Q$3$ of $20$c is at X$=2$m and Y$=2$m$.$ What is the net force magnitude on Q$3?$ A$.0\mathrm{.}9$ N B$.0\mathrm{.}4$ N C$.0\mathrm{.}8$ N D$.0\mathrm{.}1$ N E$.0\mathrm{.}7$ N $=0\mathrm{.}45$N $(-$j$)$ Since x$=2$ m and y $=2$m for charge Q$3,$ $=45$o F$31$x $=$ F$31$ cos $45$o$=0\mathrm{.}397$N and F$31$ y $=$ F$31$ sin $45$o $=0\mathrm{.}397$N So F$3$x$=0\mathrm{.}397$ N and F$3$y $=0\mathrm{.}3970\mathrm{.}45=0\mathrm{.}053$ N F $=$ F$23$x $+$ F$23$y $=0\mathrm{.}3972+0\mathrm{.}0532=0\mathrm{.}400$ N b$)$ Of the charge Q initially on a tiny sphere, a portion q is to be transferred to a second, nearby sphere. Both spheres can be treated as particles and are fixed with a certain separation. For what value of q$/$Q will the electrostatic force between the two spheres be maximized? A$.2$ B$.1/3$ C$.(1)/(2)$ D$.$ E$.1$