In the figure eight particles form a square in which distance $d=4\mathrm{.}10cm.$ The charges are $q_1=+6e,q_2=+4e,q_3=-7e,q_4=-5e,q_5=+6e,q_6=+4e,q_7=-7e,$ and $q_8=+3e.$ What is $($a$)$ the $x$ component and $($b$)$ the $y$ component of the net electric field at the square's center?

$($a$)$ Number

Units

$($b$)$ Number

Units

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