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A 'clicker' is sounding at 12 Hz. If you are moving towards the 'clicker' at 29 m/sec, what frequency do you hear instead? (E is incorrect) How Do i solve this?

A.14.31 Hz
B.16.97 Hz
C. 13.02 Hz
D. 10.98 Hz
E. 7.03 Hz

1 Answer

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When moving towards a sound source, the frequency you hear can be calculated using the formula f' = (v + vo) / (v + vs) * f. Applying this formula to the given values, the frequency you hear from the clicker is approximately 13.02 Hz.

Step-by-step explanation:

The frequency you hear when moving towards a sound source is given by the formula:

f' = (v + vo) / (v + vs) * f

Where:

f' is the frequency you hear

v is the speed of sound

vo is your velocity

vs is the velocity of the sound source

f is the original frequency of the sound source

In this case, the clicker has a frequency of 12 Hz and you are moving towards it at a speed of 29 m/s. Given that the speed of sound is typically around 343 m/s, the formula becomes:

f' = (343 + 29) / (343 - 0) * 12

Simplifying this expression gives you a frequency of approximately 13.02 Hz.

User Bengoesboom
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