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Problem 2 Two sources, S1 and S2 emit sound waves with a frequency of 300Hz. a. If $1 is at rest and $2 is moving toward S1, the beat frequency heard at S2 is 20 Hz. What is the speed of S2? Assume that the speed of sound is 343m/s. b. What is the beat frequency at S1? c. If the sound from $1 now enters a tube at one end. The tube is closed at the other end and has a length of 10cm. What is the fundamental frequency of standing waves that are set up inside the tube? d. If the power of the source S1 is 160W, what is the sound level at a distance of 20cm from the source

Problem 2 Two sources, S1 and S2 emit sound waves with a frequency of 300Hz. a. If $1 is at rest and $2 is moving toward S1, the beat frequency heard at S2 is 20 Hz. What is the speed of S2? Assume that the speed of sound is 343m/s. b. What is the beat frequency at S1? c. If the sound from $1 now enters a tube at one end. The tube is closed at the other end and has a length of 10cm. What is the fundamental frequency of standing waves that are set up inside the tube? d. If the power of the source S1 is 160W, what is the sound level at a distance of 20cm from the source

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter17: Sound
Section: Chapter Questions
Problem 128P: An airplane moves at Mach 1.2 and produces a shock wave. (a) What is the speed of the plane in...
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Two sources, S1 and S2 emit sound waves with a frequency of 300Hz.
a. If S1 is at rest and S2 is moving toward S1, the beat frequency heard at S2 is 20 Hz. What is the speed
of S2? Assume that the speed of sound is 343m/s.
b. What is the beat frequency at S1?
c. If the sound from S1 now enters a tube at one end. The tube is closed at the other end and has a length
of 10cm. What is the fundamental frequency of standing waves that are set up inside the tube?
d. If the power of the source S1 is 160W, what is the sound level at a distance of 20cm from the source

Problem 2 Two sources, S1 and S2 emit sound waves with a frequency of 300Hz. a. If $1 is at rest and $2 is moving toward S1, the beat frequency heard at S2 is 20 Hz. What is the speed of S2? Assume that the speed of sound is 343m/s. b. What is the beat frequency at S1? c. If the sound from $1 now enters a tube at one end. The tube is closed at the other end and has a length of 10cm. What is the fundamental frequency of standing waves that are set up inside the tube? d. If the power of the source S1 is 160W, what is the sound level at a distance of 20cm from the source
Transcribed Image Text:Problem 2 Two sources, S1 and S2 emit sound waves with a frequency of 300Hz. a. If $1 is at rest and $2 is moving toward S1, the beat frequency heard at S2 is 20 Hz. What is the speed of S2? Assume that the speed of sound is 343m/s. b. What is the beat frequency at S1? c. If the sound from $1 now enters a tube at one end. The tube is closed at the other end and has a length of 10cm. What is the fundamental frequency of standing waves that are set up inside the tube? d. If the power of the source S1 is 160W, what is the sound level at a distance of 20cm from the source
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