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A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of +18.0 m/s, while the exiting water stream has a velocity of -18.0 m/s. The mass of water per second that strikes the blade is 66.0 kg/s. Find the magnitude of the average force exerted on the water by the blade.
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calculate the fraction of which is submerged when the cylinder floats in alcohol. Fraction of Vwood submerged.
A freight company uses a compressed spring to shoot 1.7 kg packages up a 1m high frictionless ramp into a truck. The spring constant is 241 N/m and the spring is compressed 33 cm.
A 2.8{\rm kg} block of wood sits on a table. A 3.0 {\rm g} bullet, fired horizontally at a speed of 370{\rm m/s} , What is the speed of the block immediately after the bullet exits
A student sits on a rotating stool holding two 2.9-kg objects. When his arms are extended horizontally, Find the kinetic energy of the student before and after the objects are pulled in
driving along an interstate highway at 55 mph you see a car on a parallel highway coming toward you with a relative
A 60-kg basketball is dropped out of a window that is 6.1m above the ground. The ball is caught by a person whose h&s are 1.5m above the ground. Find gravitational potential energy of the ball.
What is the force on the 1 nC charge at the bottom. how far will it skid if it is traveling at 120 km/h when its brakes lock.
two infinite, parallel planes have excess charge densitites o and -2o, what are the magnitude and direction of the electic field between the planes
Consider an LC Circuit in which L = 500 mH & C = 0.100 microF. What is the resonance frequency
A vertical cylinder 6 ft tall and 1 ft in diameter might be used to approximate a man for heat-transfer purposes, Calculate the heat lost from the cylinder
A cylindrical spaceship of length 40.0 m and diameter 8.75 m is traveling in the direction of its cylindrical axis (length). What is the length of the ship, as measured by an Earth observer measured in m
A classroom slide projector projects an enlarged (55 times taller) image of a 24 mm high photographic film onto a screen located 10 meters from the projector. What focal length lens (cm) does slide projector require to produce a sharply focus imag..
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