A rod of charge $-9\mathrm{.}60$ nC is bent into a semicircle of radius R $=88\mathrm{.}4$ cm$.$ A second rod, this one straight of charge $+9\mathrm{.}60$ nC and length $2$R$,$ is placed a distance d$=7\mathrm{.}00$ cm from the semicircle, as shown below. What is the magnitude of the electric field at the dot?

Magnitude of electrA rod of charge $-9\mathrm{.}60nC$ is bent into a semicircle of radius $R=88\mathrm{.}4cm.$ A second rod, this one straight of charge $+9\mathrm{.}60nC$ and length $2R,$ is placed a distance $d=7\mathrm{.}00cm$ from the semicircle, as shown

below. What is the magnitude of the electric field at the dot?

Magnitude of electric field:ic field: