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After 10.0 s, a spinning roulette wheel at a casino has slowed downto an angular velocity of +1.84 rad/s. During this time, the wheel has an angularacceleration of -4.45 rad/s2. Determine the angular displacement of the wheel.
Over 500 planets have so far been detected beyond our solar system. This is accomplished by looking for the effect the planet has on the star. The star is not truly stationary; instead, it and its planets orbit around the center of mass of the sys..
A 1300-kg car moving on a horizontal surface has speed v = 55km/h when it strikes a horizontal coiled spring, What is the spring stiffness constant of the spring
Assuming Euclidean geometry in an expanding Universe, and usingHubble's Law, find a formula which gives the angular size inarcseconds, of a nearby galaxy whose diameter, S is 200kpc, as afunction of the observed wavelength for the twice ionized oxyge..
A 60 kg woman in an elevator is accelerating upward at 1.2 m/s^2. what is the normal force pushing upward on her feet
You are running an experiment that uses an accelerator that produces a 3.50-µA proton beam. Find the amount of energy delivered to the target each second
You find an unlabeled box of fine needles, and want to determine how thick they are. A standard ruler won\'t do the job, since all you can tell is that each needle is less than a millimeter thick. What is the diameter of the needle
A train is approaching a highway crossing at a speed of 40 m/s. What frequency would the driver hear if the train stopped
A student could either pull or push, at an angle of 30? from the horizontal, a 55kg crate on a horizontal surface, Calculate the minimum work required for both pulling and pushing
The distance from the Sun to Jupiter is 5.2 times longer than the Earth-Sun distance. Take the intensity of sunlight at the Earth to be 1340 W/m2. Find the amplitude of the associated electric field at Jupiter
A stone is dropped at t = 0. A second stone, with 6 times the mass of the first, is dropped from the same point at t = 160 ms. (a) How far below the release point is the center of mass of the two stones at t = 300 ms? (Neither stone has yet reached t..
A river has a steady speed of 0.500 m/s. A student swimsupstream a distance of 1.00 km and swims back to the startingpoint. how long does the trip take
A rocket traveling at 0.540c sets out for the star, which is 5.45ly away from earth. It will return to earth immediately after reaching the star. According to the rocket crew how far will the rocket travel
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