q=1.60 \times 10^{-19} \mathrm{C} q_{2}=3.20 \times 10^{-19} \mathrm{C} q_{4}=-3.20 \times 10^{-19} \mathrm{C} \theta=60^{\circ} R=0.02 \mathrm{~m} What is the net force act on qi? \text { Express your answer in the form of: } F_{x} \hat{\imath}+F_{y} \hat{\jmath}