7. A small tube open at both ends resonate at frequencies: 391 Hz, 782 Hz, 1172 Hz what is the length of the tube? What should the length of a tube closed at one end have to be to have a fundamental frequency of 391 Hz?
7. A small tube open at both ends resonate at frequencies: 391 Hz, 782 Hz, 1172 Hz what is the length of the tube? What should the length of a tube closed at one end have to be to have a fundamental frequency of 391 Hz?
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Transcribed Image Text:7. A small tube open at both ends resonate at frequencies: 391 Hz, 782 Hz, 1172 Hz what is the
length of the tube? What should the length of a tube closed at one end have to be to have a
fundamental frequency of 391 Hz?
8. A source of sound waves of frequency 1080 Hz is traveling at a speed of 20 m/s towards a car
traveling away from the source at 10 m/s. What is the frequency heard by the car on a day
where the speed of sound is 344 m/s?
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