J#$01$ Begin Date: $12/8/202312$:$01$:$00$ AM $--$ Due Date: $1/9/20242$:$00$:$00$ PM End Date: $1/9/20242$:$00$:$00$ PM

$\%)$ Problem $10$: Four point charges of equal magnitude $Q=35nC$ are placed on the corners of a ctangle of sides $D_1=24cm$ and $D_2=12cm.$ The charges on the left side of the rectangle are positive aile the charges on the right side of the rectangle are negative. Refer to the figure.

$14\%$ Part $($a$)$ Which of the following represents a free$-$body diagram for the charge on the lower left hand corner of the rectangle?

$14\%$ Part $($b$)$ Choose an expression for the horizontal component of the net force acting on the charge located at the lower left corner of the rectangle in terms the charges, the given distances, and the Coulomb constant. Use a coordinate system in which the positive direction is to the right and upwards.

$r_n=k{Q}^2[\frac{1}{p_1^2}+\frac{D_1}{(D_1^i+D_2^2{)}^{\frac{2}{2}}}]$

$$ Correct!

$14\%$ Part $($c$)$ Calculate the value of the horizontal component of the net force, in newtons, on the charge located at the lower left corner of the rectangle.