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4 years ago

14

Use your knowledge of the properties of the different states of matter to determine in which state sound would travel the fastes

t.
A) liquid carbon dioxide
B) gaseous carbon dioxide
C) dry ice - solid carbon dioxide
D) none - sound travels at a constant rate

1 answer:

Marizza181 [45]4 years ago

4 0

Answer:

c)

Explanation:

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3 years ago

A student standing in a canyon yells "echo", and her voice produces a sound wave of frequency of f = 0.61 kHz. The echo takes t

klasskru [66]

Answer:

$d=627.9\ m$ is the distance from the obstacle of reflection.

wavelength $\lamb=0.5279\ m$

Explanation:

Given that:

frequency of sound, $f=610\ Hz$

time taken for the echo to be heard, $t=3.9\ s$

speed of sound, $v=322\ m.s^{-1}$

We know,

$\rm distance = speed \times time$

<em>During an echo the sound travels the same distance back and forth.</em>

$2d=v.t$

$2d=322\times 3.9$

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<u>Now the wavelength of sound waves:</u>

$\lambda=\frac{v}{f}$

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3 years ago