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An elevator moving upward approaches the top floor of a high rise building and begins to slow down at the rate of 2.00 m/s2.
(a) Will a passenger in the elevator feel a lighter or heavier weight during this time?
(b) Draw a free-body diagram to show all the forces on the passenger.
(c) Calculate the apparent weight of the passenger if her mass is 60.0 kg.
A small ball rolls horizontally off the edge of a tabletop that is 1.06 m high. how long was the ball in the air
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An object slides down a frictionless inclined plane. At the bottom, it has a speed of 9.80 m/s. What is the vertical height of the plane
Conservation of energy tells us that energy cannot be created or destroyed. Clearly, energy is required for radioactivity to occur. Where is this energy coming from?
A 52.5 g Super Ball travelling at 30 m/s bounces off a brick wall and rebounds at 16.0 m/s. A high-speed camera records this event. If the ball is in contact with wall for 3.25 ms, what is the magnitude of the average acceleration of ball during t..
Type your question hereSuppose you look through a 3.9 mm thick window comprised of a material whose refractive index is 1.58. By how many wavelengths is it delayed, if its vacuum wavelength is 600 nm
In an American football game, a 90.6 kg fullback running east with a speed of 5.00 m/s is tackled by a 94.3 kg opponent running north with a speed of 3.03 m/s. Determine the mechanical energy lost as a result of the collision
A rope is used to pull a 2.25 kg block at constant speed 7.47 m along a horizontal floor. The force on the block from the rope is 7.52 N, find the work done by the rope's force
Two current-carrying wires are exactly parallel to one another and both carry 3.5 A of current. What is the direction of the magnetic force caused by wire 2 on wire 1
An eagle with 1.8m wingspan flaps its wings 21 times per minute, each stroke extending from 42%u2218above the horizontal to 42%u2218 below. What's the average tangential velocity of the wingtip
You shine a laser on a plastic prism made from an unknown material and measure the angles relative to the normal that the light takes both inside and outside the medium. What is the index of refraction of the plastic object
Objects with masses of 180 kg and a 480 kg are separated by 0.410 m. Find the net gravitational force exerted by these objects on a 58.0-kg object placed midway between them
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