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You are riding in an elevator that is traveling down .It travels at vo=6m/s downward. Then, over two seconds, it slows to a stop.
1. What normal force does the person feel as the elevator decelerates? (Mp=75kg)
2. What is the acceleration of the elevator? What about the person? (Direction and magnitude)
3. If the elevator has the mass of 300 kg (by itself) what is the tension on the rope as it decelerates?
A box is put on a slide to move it from one part of a factory to another the slide is at an angle of 20 degrees below the horizontal the coefficient of friction between the box and slide is 0.352 what is the acceleration of the box.
Suppose a rocket ship in deep space moves with constant acceleration equal to 9.80 m/s2, which gives the illusion of normal gravity during the flight. How far will it travel in so doing
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A magnetic field directed into the page-changes with time according to \(B = (0.05t^{2} + 0.4) T\) , where t is in s. The field has a circular cross-section of radius R = 0.05 m (Fig. 31.28). What are the magnitude and direction of the electric fi..
One end of a nylon rope is tied to a stationary support at the top of a vertical mine shaft of depth 85.0 m. What is the wave speed at the bottom of the rope
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in the early 1900s robert millikan used small charged droplets of oil suspended in an electric field to make the first
50j of work are done per cycle on a refrigerator with a coefficient of performance of 5.0. Part A: How much heat is extracted from the cold reservoir per cycle
1. a resonant circuit in a radio receiver is tuned to a certain station when the inductor has a value of 0.157 mh and
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