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Q1. A charge of 5.62 μC is at the origin and a second charge of -2.44 μC is on the positive x-axis 1.00 m from the origin.

Find out the magnitude of the electric field at a point P on the y-axis 0.529 m from the origin. The value of the Coulomb constant is 8.99 × 109 N • m2/C2.

Q2. Leroy, who has a mass of 120 kg, is skateboarding at 9.0 m/s while he smacks into a brick wall and comes to a dead stop in 0.2 s.

(a) What is the deceleration?

(b) What is the force of an impact?

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