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Ro https.nsession masteringphysics.com/myct/masteringa/assignment/547879 Eo https/session.masteringphysics.com/eycttemView assignmentProblem b-81359241&offset-next; Wavesisound Unit Homowork -Tubes Conceptual Question 16.13 Conntacts When you speak after breathing helium, in which the speed of sound is much greaer than in your voice sounds qute different The trequencies emitted by your vocal cords do nof change since they ane detemined by the mass and tension of your vocal cords Part A So what does change when your vocal tract is fled with helun rather han ar Essay answers are limited to about 300 words (3800 characters maximum, including spaces) 800 Chaactents) nemaning Provide Feedback M DOLL

Explanation / Answer

Helium is lighter than air. The more dense the gas, the slower the sound wave will travel. So by inhaling helium, the speed of sound increases keeping the pitch unchanged. When the frequency of the chords remains unchanged and the speed of the sound increases, then the wavelength of sound is greater in helium than in Air. So, when the wavelength of the sound increases, the sound appears quite different.

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