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An 83 kilogram skier starts at rest 250 meter up the side of a mountain. The skier then travels down the slope until the ground levels out at the bottom. Friction can be neglected.
A) Find the skiers speed at the bottom of the slope?
B) After reaching the bottom of the slope, the skier collides with a 67 kilogram snowboarder and comes to a complete stop. If the snowboarder was initially at rest, find his velocity after the collision?
C) If the collision had been perfectly elastic, determine what mass would the snowboarder have needed to have a final velocity of 85 m/s?
when an automobile moves with constant speed down a highway most of the power developed by the engine is used to
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Two thin slits are 0.050 mm apart. Monochromatic light of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are adjacent interference fringes
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Engine oil (?=0.20Pa?s) passes through a 2.60mm diameter tube in a prototype engine. What pressure difference is needed to maintain a flow rate of 6.5mL/min
A boy with a mass of 55 kg is hanging from a spring with a spring constant of 240 N/m. With what frequency does the boy bounce up and down
Calculate the energy associated with the magnetic field of a 191 turn solenoid in which a current of 2.44. A produces a magnetic flux of 3.74 x 10-4 T • m2 in each turn.
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