Figure 22-39 shows an uneven arrangement of electrons (e)
Chapter , Problem 12(choose chapter or problem)
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 u1 ! 30.0", u2 ! 50.0", u3 ! 30.0", and u4 ! 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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