7. A small tube open at both ends resonate at frequencies: 391 Hz, 782 Hz, 1172 Hz what is thelength of the tube? What should the length of a tube closed at one end have to be to have afundamental 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 cartraveling away from the source at 10 m/s. What is the frequency heard by the car on a daywhere the speed of sound is 344 m/s?

The small tube open at both ends produces standing waves at frequencies 391 Hz, 782 Hz and 1172 Hz…

Answered: 7. A small tube open at both ends…

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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?