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Q. Two point charges, Q_1 = -6.9 mu C and Q_2 = 2.0 mu C are located between two oppositely charged parallel plates. The two charges are separated by a distance of x = 0.33 m. Assume that the electric field produced by the charged plates is uniform and equal to E = 7.8×10^4 N/C.

Q. An 80 g arrow is fired from a bow whose string exerts an average force of 95 N on the arrow over a distance of 84 cm. What is the speed of the arrow as it leaves the bow?

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