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A skier starts from rest at the top of a hill. The skier coastsdown the hill and up a second hill, as the drawing illustrates. Thecrest of the second hill is circular, with a radius of r =33 m. Neglect friction and airresistance. What must be the height h of the first hill sothat the skier just loses contact with the snow at the crest of thesecond hill?
A storage tank has a diameter of 80 ft, a height of 25 feet, andcontains oil to a height of 15 ft. The suction pumps, whichcan handle 15, 000 bbl/d are started, but the safety valves areclogged and a vacuum is drawn in the tank.
Three forces act on a moving object. One force has a magnitudeof 72.3 N and is directed due north. Another has a magnitude of52.7 N and is directed due west.
in an lc circuit containing a 40-mh ideal inductor and a 1.2-mf capacitor the maximum charge on the capacitor is 45mc
a krypton laser produces a cylindrical red laser beam 2.0 mm in diameter with 2.0 w of power. what is the light
What is the coefficient of kinetic friction between the crate and the floor. what height will the stream of water strike.
How much work is done by the Moon's gravitational field as a 1065 kg meteor comes in from outer space and impacts on the Moon's surface
A scuba diver releases a 3.50 cmdiameter (spherical) bubble of air from a depth of 10.0 m in alake. How large is the bubble when it reachesthe surface
Electromagnetic waves of wavelength 0.178nm fall on a crystal surface. As the angle of incidence is gradually increased, starting at 0 degrees, What is the distance between the crystal planes
a 1.00 kg metal ball having net charge q 5.99 uc is thrown out of a window horizontally at a speed v 15.4 ms. the
a charged material causes the deflection of a positively charged electroscope to increase. does the charged material
A proton with v = 374 m/s is moving through a region in which the magnetic field is B = 2.8 T. what angle does the protons velocity make with B
Suppose the highway is icy and the coefficient of friction between the tires and pavement is only one-third what you found in part A. What should be maximum speed of the car so it can round the curve safely?
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