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An electron is a subatomic particle (m = 9.11 × 10^-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.40 × 10^5 m/s to a final velocity of +2.10 × 10^6 m/s while traveling a distance of 0.038 m. The electron's acceleration is due to two electric forces parallel to the x axis: , and , which points in the -x direction. Find the magnitudes of (a) the net force acting on the electron and (b) the electric force.

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