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The fundamental frequency of an open organ pipe corresponds to the A above middle C (440 Hz on the chromatic musical scale). The third resonance of a closed organ pipe has the same frequency. (Assume that the speed of sound in air is 343 m/s.)
(a) What is the length of the open pipe?
m
(b) What is the length of the closed pipe?
If the polar coordinates of the point ( x , y ) are ( r , ? ), determine the polar coordinates for the following points
A cop car drives at 30m/s toward the scene of a crime, with its siren sounding (f = 2125 Hz.) Estimate the frequency heard by people at the crime scene as the siren approaches and the frequency heard as the siren moves away from people.
What is the magnitude of the magnitic filed.
A spacecraft is in orbit around a planet. The radius of the orbit is 2.9 times the radius of the planet (which is R = 71474 km). What is the period of the spacecraft's orbit
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Suppose that the sound level of a conversation is initially at an angry 70 dB and then drops to a soothing 50 dB. determine the final sound wave amplitudes
Light propagates from soda lime glass (n=1.518) into a new material (n= ?). Determine the index of refraction for the material
a 150 gm ice cube at 0.0 celcius is dropped into an insulated cup with 200 gm of water at 15 celcius. describe the final mixture after equilibrium has been reached
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