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An organ pipe, open at both ends, resonates at its first resonant length with a frequency of 128 Hz. What is the length of the pipe if the speed of sound is 346m/s?
3 answers
pipe is half a wave long? (must be, antinode at both ends.)
what is period of this wave?
T = 1/f = 1/128 second
goes a wavelength in 1/128 second
346 m/s (1/128) = wavelength
so wavelength = 346/128 meters
so
1/2 wavelength = 346 /256 meters
s
what is period of this wave?
T = 1/f = 1/128 second
goes a wavelength in 1/128 second
346 m/s (1/128) = wavelength
so wavelength = 346/128 meters
so
1/2 wavelength = 346 /256 meters
s
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