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A positive charge q = 2.60 C on a frictionless horizontal surface is attached to a spring of force constant k as in the

A positive charge q = 2.60 C on a frictionless horizontal surface is attached to a spring of force constant k as in the figure shown below. When a charge of 42 = -8.350 C is placed 9.50 cm away from the positive charge, the spring stretches by 5.00 mm, reducing the distance between charges to d = 9.00 cm. Find the value of k. WA N/m Read It Need Help? 9 92

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