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Water flows straight down from an open faucet. The cross-sectional area of the faucet is 2.2 ×10-4 m2 and the speed of the water is 0.85 m/s as it leaves the faucet. Neglecting air resistance, calculate the cross-sectional area of the water stream at appoint 0.08 meter below the faucet.
tired of walking down the stairs a 75 kg engineering student designs an ingenious device for reaching his third floor
A storage tank 25m high is filled with gasoline. Find the measure pressure at the bottom of the tank.
A mirror produces an image of the sun, and the image is located 0.9800 m from the mirror. What is the object height ho of the tree
You shine a laser on a plastic prism made from an unknown material and measure the angles relative to the normal that the light takes both inside and outside the medium. What is the index of refraction of the plastic object
A model rocket is launched straight upward with an initial speed of 45.3 m/s. What is the maximum height reached by the rocket
A 4.55 mol sample of a diatomic ideal gas (? = 1.4) expands slowly and adiabatically from a pressure of 4.10 atm and a volume of 11.5 L to a final volume of 30.0 L. What is the initial temperature of the gas
A perfectly inelastic collision (both cars stick together after the collision) occurs between a 2000kg car moving at 7m/s, What is the velocity of the cars immediately after impact
A jelly donut is dropped from a height of 1m above the big belly of a horizontal couch potato. How high did it rise on its first bounce
Consider a merry-go-round that has the form of a disc with radius 5.5 m and mass 130 kg. what is the total moment of inertia
A 3.0 kg block rests on a 30 degree slope and is attached by a string of neglible mass to a sold drum of mass 0.80 kg and radius 10.0 cm, Find the angular accleration of the drum
A 843 kilogram car stopped at an inter section is rear-ended by a 1820 kilogram truck moving with a speed of 17.0 m/s. determine the final speed of both vehicles after the collision
a breadbox is made to move along an x-axis from x 0.15 m to x1.20 m by a force with a magnitude given by fx e-2x2 with
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