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Starting from rest, a(n)10 kg block slides 11.9 m down a frictionless ramp (inclined at 30? from the floor) to the bottom. The block then slides an additional 21.1 m along the floor before coming to stop.
The acceleration of gravity is 9.8 m/s2. Find the speed of the block at the bottom of the ramp.
Answer in units of m/s. Find the coefficient of kinetic friction between block and floor.
A major-league pitcher can throw a baseball in excess of 41.9 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 18 m away from the point of release.
work function of potassium is 2.225 eV. Find the cutoff wave length of potassium, find the frequency of the x-ray
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A runner is practicing on a circular track that is 675 m in circumference. If he runs halfway around the track and stops at the farthest eastern point of the track, what is the distance he traveled
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Compute the root-mean-square speed of ammonia (NH3) molecules at 56.0° C. An atom of nitrogen has a mass of2.33°—10–26 kg and an atom of hydrogen has a mass of 1.67°—10–27 kg.
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