Sketch the doppler effect from the driver's position

4 answers
Question:

Sketch the doppler effect from the driver's position

Answers

A) The driver should drive away from the pet owner to use the Doppler effect

Explanation:

The whistle claims to be making a frequency higher than the audible frequency to humans

We need to decrease its frequency to make it audible.

Doppler effect explains the influence of motion of the source on the observed frequency.

If the source is approaching the observed frequency will be higher than the real frequency.

For an approaching source

[tex]f_{observed}=f_{source}(\frac{v}{v+v_{source}} )[/tex]

If the source is receding the observed frequency will be lower than the real frequency

For a receding source

[tex]f_{observed}=f_{source}(\frac{v}{v-v_{source}} )[/tex]

From the above facts we understand that the helper should ride away from the pet owner to decrease the frequency and make the whistle audible.

I believe its A

Explanation:

Iwould sure like to answer your question but i honestly just don’t know

The rocks expand when there hot/warm  and contract when they are cold.

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