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A bugle is simply a tube of fixed length that behaves as if it werean open organ pipe. (open at both ends) A bugler, by adjusting his lips correctly and blowingwith proper air pressure, can cause a harmonic (usually other than the fundamental) of the aircolumn within the tube to sound loudly. Standard military tunes like Taps, andReveille require only four musical notes G4 (392 Hz) C5 (523 Hz) E5 (659 Hz) and G5 (784 Hz). Determine thelength of the tube, L, which will have a sequence of the four consecutive harmonics closeto G4, C5, E5 and G5.
determine the force P needed to support the 100-lb weight. Each pulley has a weight of 10 lb. Also, what are the cord reactions at A and B
A boy 10.0 m above the ground in a tree throws a ball for his dog, who is standing right below the tree and starts running the instant the ball is thrown. How far from the tree will the dog catch the ball
Water is flowing in a cylindrical pipe of varying circular cross-sectional area, and at all points the water completely fills the pipe. What is the radius of the pipe at this point
The Earth's gravity pulls on the Moon, causing it to orbit. However, by Newton’s third law, it is known that the Moon exerts a force back on the Earth. Therefore, the Earth should move in response to the Moon. Thus a more accurate statement is, "T..
A wheel of radius 1.5m rotates at a constant angular velocity. A point at the edge of the wheel experiences centripetal acceleration of 1.2m/s^2. What is the linear speed of that point
A ship is floating on a lake. Its hold is the interior space beneath its deck; the hold is empty and is open to the atmosphere. What volume of water per second leaks into the ship
A solenoid with 1200 turns per meter has a diameter of 9.00 cm. Find the magnitude of the magnetic flux through the loop
If the football has a mass of 0.47kg and the time of contact with the ball is 0.021s, what is the force exerted by the ball on the kicker's foot.
A vertical-axis capstan drum 60 cm in diameter was used to pull inthe anchor chain of a whaler a century ago. Six horizontal arms 1.2m long protruded from the top of the drum, and a man on each armexerted a force of 300 N on it. The efficiency of ..
Astronomers have discovered a planetary system orbiting the star Upsilon Andromedae, which is at a distance 4.2 multiplied by 1017 m from the earth. One planet is believed to be located at a distance of 1.6 1011 m from the star.
A high intensity desk lamp is rated at 45W but requires only 12V. It contains a transformer that converts 120V household voltage. What is the current in the secondary coil
A projectile is shot from the edge of a cliff h = 105 m above ground level with an initial speed of v0 = 145 m/s at an angle of 37.0° with the horizontal. Find the maximum height above the cliff top reached by the projectile
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