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A boy throws a stone horizontally at a speed of 22.0 m/s from the top of a building of height 6.40 m. What is the horizontal distance from the bottom of the building to the point where the stone lands on the level ground? ____ m
A potter's wheel -- a thick stone disk of radius 0.500 m and mass 110 kg -- is freely rotating at 50.0 rev/min. Find the effective coefficient of kinetic friction between the wheel and the rag
An electron has a momentum that is two times larger than its classical momentum. Find the speed of the electron
You spray your sister with water from a garden hose. The water is supplied to the hose at a rate of 0.149 L per second, At what speed does the water exit the nozzle
A car of 1200 kg mass enters an unbanked, curved roadbed of radius 70 m. find the maximum speed with which the car can take the turn
bartender slides a beer mug at 1.2 m/s towards a customer at the end of a frictionless bar that is 1.3 m tall. What are the speed and direction of the mug at impact
Displacement vector A points due east and has a magnitude of 3.22 km. Displacement vector B points due north and has a magnitude of 7.44 km. Displacement vecto Cr points due west and has a magnitude of 7.88 km.
The following waves are all fixed at the ends and all the stringsare identical and are under the same amount of tension. The variables in these situations , in addition to the length L, arethe amplitude and the number of nodes.
Suppose a star the size of our Sun, but of mass 8.0times as great, were rotating at a speed of 1.0 revolution every11 days. what would its rotation speed be
A child\'s top is held in place, upright on a frictionless surface. The axle has a radius of r = 3.96 mm. Two strings are wrapped around the axle, and the top is set spinning by applying T = 3.15 N of constant tension to each string
a 1.00-kg object is observed to accelerate at 10.0 ms2 in a direction 30.0 north of east. the force f2 acting on the
A Carnot engine operates between a high temperature reservoir at 492 K and a river with water at 290 K. how much work per cycle does it perform
You send a beam of light from a material with index of refraction 1.19 into an unkown material. In order to help identify this material, What is the index of refraction of the unknown material
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