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A stream of water strikes a stationary turbine bladehorizontally, as the drawing illustrates. The incident water streamhas a velocity of +16.0 m/s, while the exiting water stream has avelocity of -16.0 m/s. The mass of water per second that strikesthe blade is 26.0 kg/s. Find the magnitude of the average forceexerted on the water by the blade.
An athlete executing a long jump leaves the ground at a 35° angle and lands 7.30 m away.
A railroad car of mass 2.3 104 kg moving at 2.50 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
The normal range of hearing is about 20 to 20000 Hz. Assume that your hearing range is 26 to 18500 Hz. (Use 340 m/s as the speed of sound.) What is the greatest length of an organ pipe that would have its fundamental note in your hearing range if i..
In a physics demonstration, two rubber balls are dropped down a tube towards the ground,with the lighter ball behind, How high does the light ball rise after the two collisions
A disk with a mass of 37.5kg and a radius of 38.3cm is mounted on a frictionless horizontal axle. A string is wound many times around the disk and then attached to a 56.4kg block. Find the acceleration of the block, assuming that the string does n..
An air-track glider attached to a spring oscillates between the 12.0cm mark and the 61.0cm mark on the track. find maximum speed of the glider
Two small metallic spheres, each of mass m = 0.212 g, are suspended as pendulums by light strings of length L as shown in the figure below. The spheres are given the same electric charge of 7.9 nC, and they come to equilibrium when each string is ..
a 1330 n uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. a w 1870
A father racing his son has three-fifths the kinetic energy of the son, who has half the mass of the father. What is the original speed of the son
A box of weight Fg=2N accelerates down a rough plane that isinclined at an angle %u03C6=30 degrees above the horizontal, What is the work Wgrav done on the box by gravity
A string 0.5 m long with mass density 0.0003 kg/m and is vibrating 200 cycles per second. What hanging mass would produce this tension
A 340 kg piano slides 3.7 m down a 33° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.37.
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