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A pipe open only at one end has a fundamental frequency of 256 Hz. A second pipe, initially identical to the first pipe, is shortened by cutting off a portion of the open end. Now, when both pipes vibrate at their fundamental frequencies, a beat frequency of 12 hz is heard. How many centimeters were cut off the end of the second pipe? The speed of sound is 343 m/s.
A car is traveling at 25 m/s when it runs off the road and hits a utility pole. What is the acceleration of the airbag
question1a wooden rod of insignificant mass and length 83.0 is pivoted about a horizontal axis through its center. a
A 150 g ball and a 250g ball are connected by a 35{rm cm}-long, massless, rigid rod. The balls rotate about their center of mass at 150 rpm.
What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to an angular speed of 80.0 rev/min in 3.60 s
A point is located at r = 42mmi - 71mmj + 90mmk. It is first rotated about the x-axis by +82o, and then rotated about the z-axis by -35o
Two point charges q and 4q are at x=0 and x=L, respectively, and free to move. A third charge is placed so that the entire three-charge system is in static equilibrium. What is the magnitude of the third charge? What is the x-coordinate of the thi..
Two stones are launched from the top of a tall building. One stoneis thrown in a direction 30.0^\circ above the horizontal with aspeed of 16.0 \rm {m/s}; Which stone lands farther away from the building
A proton moves through a uniform magnetic field given by B= (10i ? 18.0j + 30k ) mT. At time t1, the proton has a velocity given by = v xi + vyj + (2000 m/s)k and the magnetic force on the proton is FB = (3.77 e-17 N)i + (2.10 e17 N)j . (a) At that i..
Two objects with masses of 2.50 kg and 5.90 kg are connected by a light string that passes over a frictionless pulley, Determine the distance each object will move in the first second of motion if both objects start from rest
A skier with a mass of 63 kg starts from rest and skis down an icy slope that has a length of 50 m at an angle of 32 degrees with respect to the horizontal. Iillustrate what is the speed of the skier at the bottom of the slope?
Water flowing through a pipe suddenly comes to a section of pipe where the pipe diameter decreases to 86% of its previous value. what is its speed in this smaller section
a diver runs horizontally with a speed of 1.2 m/s off a platform that is 5.0 m above the water. What is the speed just before striking the water
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