Figure 22-39 shows an uneven arrangement of electrons (e) and protons (p) on a circular arc of radi…

Figure 22-39 shows an uneven arrangement of electrons (e) and protons (p) on a circular arc of radius r=2.00 cm, with angles θ_1=30.0^∘, θ_2=50.0^∘, θ_3=30.0^∘, and θ_4=20.0^∘ . What are the (a) magnitude and (b) direction (relative to the positive direction of the x axis of the net electric field produced at the center of the arc?

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