Three point charges, $q_1=-3\mathrm{.}83nC,q_2=4\mathrm{.}71nC$ and $q_3=2\mathrm{.}99nC$ are aligned along the $x$ axis as shown in the figure

below. Assume that $L_1=0\mathrm{.}479m$ and $L_2=0\mathrm{.}818m.$

Calculate the electric field at the position $(2\mathrm{.}20m,0).$

Tries $\frac{0}{10}$

Calculate the magnitude of the electric field at the position $(0,2\mathrm{.}20m).$

Tries $\frac{0}{10}$

Calculate the angle of the electric field with respect to the positive $x-$axis at this position $(0,2\mathrm{.}20).$