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Ch 15 - Audible Sound

Provided the amplitude is sufficiently great, the human ear can respond to longitudinal waves over a range of frequencies from about 20.0Hz to about 20.0kHz.

A)If you were to mark the beginning of each complete wave pattern with a red dot for the long-wavelength sound, how far apart would the red dots be?

B)If you were to mark the beginning of each complete wave pattern with a blue dot for the short-wavelength sound, how far apart would the blue dots be?

C)In reality would adjacent red dots be far enough apart for you to easily measure their separation with a meterstick?
(Yes or No)

D)In reality would adjacent blue dots be far enough apart for you to easily measure their separation with a meterstick?
(Yes or No)

E)Suppose you repeated part A in water, where sound travels at 1480m/s . How far apart would the red dots be ?

F)Suppose you repeated part A in water, where sound travels at 1480m/s . How far apart would the blue dots be ?

G)Could you readily measure their separation with a meterstick?
(Yes or No)

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Answer #1
A) =speed of sound=17.2m
answered by: masaya
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