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Physics, 22.06.2019 15:00, ttorres013
Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14ĻĻµ0. d)the ball will oscillate along the z axis between z=d and z=ād in simple harmonic motion. what will be the angular frequency Ļ of these oscillations? use the approximation dāŖa to simplify your calculation; that is, assume that d2+a2āa2. express your answer in terms of given charges, dimensions, and constants
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Physics, 22.06.2019 23:30, china236
A6.0-kilogram cart initially traveling at 4.0 meters per second east accelerates uniformly at 0.50 meter per second squared east for 3.0 seconds. what is the speed of the cart at the end of this 3.0 second interval? (1) 1.5 m/s (3) 3.0 m/s (2) 5.5 m/s (4) 7.0 m/s
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