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An organ pipe is open at both ends. It is producing sound at its third harmonic, the frequency of which is 262 Hertz. The speed of sound is 343 m/s. Determine what is the length of the pipe?
water flows through a horizontal pipe, and then out into theatmosphere at a speed of v1=12 m/s. what is the gauge pressure in the left section of the pipe
At Green Hills golf course, the ninth hole par 3 isfrom an elevated tee box. With a laser rangefinder, a golfermeasures the flag to be 143 m 18.5 degrees below thehorizontal.
A noisy grinding machine in a factory produces a sound intensity of 1.0 x 10^-5 Watts/meter^2. Deteremine the sound intensity level
A concave cosmetic mirror has a focal length of 24 cm. A 5.0 cm -long mascara brush is held upright 12 cm from the mirror.
The soccer goal is 21.78 m in front of a soccer player. She kicks the ball giving it a speed of 18.69 m/s at an angle of 25.43 degrees from the horizontal. find the speed of the ball just as it reaches the goalie
q1. a thin layer of magnesium fluoride n 1.38 is used to coat a flint-glass lens n 1.61. what minimum thickness must
An energetic father stands at the summit of a conical hill as he spins his 23kg child around on a 6.0kg cart with a 2.1m--long rope. The sides of the hill are inclined at 25kg . He keeps the rope parallel to the ground, and friction is negligible. Wh..
Two point charges 2.0cm apart have an electric potential energy -400?J . The total charge is 25nC, What is the lesser and larger charge
The centripetal acceleration in a horizontal centrifuge is 75 g's when it is rotating at 2000 rpm, What is the radius of the centrifuge
An archer pulls her bowstring back 0.432 m by exerting a force that increases uniformly from zero to 227 N. What is the equivalent spring constant of the bow
Assume the distance between the protons in the H2 molecule is 7.50 multiply.gif 10-11 m. Find the energy of the second rotational state, with J = 2
A 12.8 g bulletis fired horizontally into a 93 g woodenblock initially at rest on a horizontal surface. what was the speed of the bullet immediately before impact
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