What is $E_y,$ the value of the $y$ component of the electric

Learning Goal: use the definition of electric field to analyze the field created by a continuous charged arc. field at the origin $(x,y)=(0,0)?$

$E_y=$

N$/$C

A total charge $Q=4\mathrm{.}30C$ is distributed uniformly over a quarter$-$circle arc of radius $a=8\mathrm{.}00cm,$ as shown.