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A 27-cm-long wire with a linear density of 25 passes across the open end of an 83-cm-long open-closed tube of air. If the wire, which is fixed at both ends, vibrates at its fundamental frequency, the sound wave it generates excites the second vibrational mode of the tube of air. What is the tension in the wire? Assume the speed of sound is 340 .
While visiting the Albert Michelson exhibit at Clark University, you notice that a chandelier swings back, Calculate the frequency of oscillation (in Hertz) of the chandelier
A hammer taps on the end of a 4.00-m-long metal bar at room temperature. What is the speed of sound in this metal
define the magnitude of the acceleration of the elevator. A 300 kg piano slides 4.1m down a 30 degree incline and is kept from accelerating by the man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction ..
While running home from second base a 67 kg runner rounds third base at a speed of 3.1 m/s, What is the centripetal force of this turn on third base
A 55 kg block of ice slides down a frictionless ramp that is 2.0 m long and 0.91 m high. Find the force exerted by the worker
Estimate is in constant FY 1995 dollars, while the SPANIEL program cost estimate is in constant FY 1999 dollars. Which one of the following is the most valid way of comparing the costs of these two programs?
A 1500 kg car carrying four 87kg people travels over a rough "washboard" dirt road with corrugations 4.40 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude while its speed is 19km/h. The car now s..
A uniform plank of length 4.7 m and weight 221 N rests horizontally on two supports, with 1.1 m of plank hanging over the right support. To what distance x can a person who weighs 440 N walk on the overhanging part of the plank before it just begi..
How much work should be done to bring 3 electrons from a great distance apart to within 2.55E-10 m from one another (at the corners of an equilateral triangle).
A child and sled with a combined mass of 55.20 kg slide down a frictionless hill that is 7.84 m high at an angle of 26o from horizontal. The acceleration of gravity is 9.80 m/s2. If the sled starts from rest, what is its speed at the bottom of hil..
a 19.2 kg sled is being pulled across a horizontal surface at a constant velocity. determine the coefficient of kinetic friction
The automobile afterwards undergoes a uniform acceleration of -4 m/s2 because of a red light and comes to rest. It remains at rest for 54.6s and next accelerates back to a speed of 25.6m/s at a rate of 2.85m/s2.
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