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A particle undergoes two displacements. The first has a magnitude of 11 m and makes an angle of 63 ? with the positive x axis. The result after the second displacement is 8.7 m directed at an angle of 109? to the positive x axis using counterclockwise as the positive angular direction.
Find the angle of the second displacement measured counterclockwise from the positive x axis (i.e., a positive angle). Answer in units of ? .
Two automobiles are equipped with the same single frequency horn. What is the frequency the horns emit
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Explain how Karl lifed th cement. How much time would it take for the police officer to catch the speeder, assuming that the speeder maintains a sonstant speed? How fast will the police officer be traveling at this time.
Suppose that a planet were discoveredbetween the sun and Mercury, with a circular orbit of radius equalto {\frac{2}{3}} of the average orbit radius of Mercury. What would be the orbital period of such aplanet
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A roller coaster at an amusement park has a dip that bottoms out ina vertical circle of radius r. A passenger feels the seat of thecar pushing upward on her with a force equal to twice her weight asshe goes through the dip. If r = 20.0 m, how fast..
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