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ning hysk C Secure https:// 74118330 session,masteringphysics.com/myct/itemView?assignmentProblemID Basic Physics ll PHYS 112) Spring 2017 Signed in Resources Problem 16.27 previous l 11 of 16 l nex Problem 16.27 Part A Deep-sea divers often breathe a mixture of helium and What will these frequencies be for a helium-oxygen mixture in which the speed of sound at body temperature is 800 m/s Use 350 m/s for the speed oxygen to avoid the complications of breathing high-pressure of sound in the air) nitrogen. At great depths the mix is almost entirely helium, Express your answers using two significant figures separated by a comma. which has the side effect of making the divers' voices sound very odd Breathing helium doesn't affect the frequency at which the vocal cords vibrate, but it does affect the frequencies of the formants. The text gives the frequencies of the first two formants for an "ee" vowel sound as 270 and 2300 Hz. Hiz Submit My Answers Give erodde Feedback Continue :45 AM de Type or talk to search 4/10/2017

Explanation / Answer

Using the relation V=FL

Here the frequency is directly proportional to velocity

Case 1 for 270 Hz

800/350 *270 = 617.14 Hz

Case 2 for 2300 Hz

800/350 * 2300 = 5257.14 Hz = 5.25 KHz

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