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The skier starts at a snow covered slope which is inclined 20 degrees above the horizontal. The skier has a mass of 100kg. The coefficient of static friction is 0.25 and the coefficient of kinetic friction is 0.12 between the skier and the snow. He goes down the 20 meter long incline of the bunny slope.
a. How fast are is he going at the bottom?
b. How long does it take them to go the 30 meters?
A block with a mass of 0.800 kg is connected to a spring, displaced in the positive direction a distance of 50.0 cm from the equilibrium, what is the block's period of oscillation
A runner covers one lap of a circular track 40.0m in diameter in 63.5s, what was her average speed for that half-lap
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how high does it rise above the point of free.
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You are riding on a Jet Ski at some angle upstream on a river flowing with a speed of 2.8. Assume the Jet Ski is moving at a speed of 12 relative to the water. At what angle should you point the Jet Ski if your velocity relative to the ground is t..
Adjacent antinodes of a standing waves on the string are 15.2 cm apart. A particle at an antinode oscillates in simple harmonic motion with amplitude 0.850 cm and period 0.0750 s. The string lies along the x axis and is fixed at x = 0.
if the box is moving at a constant speed of 0.35m/s and the coefficient of kinetic friction is 0.12. What is the magnitude of F.
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