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olchik [2.2K]
1 year ago
9

If an emergency vehicle passes you in traffic, just as it passes you the pitch of

Chemistry
1 answer:
Keith_Richards [23]1 year ago
3 0

If an emergency vehicle passes you in traffic, just as it passes you the pitch of the siren changes as it approaches, the siren’s pitch sounds higher than when it is moving away from you.the frequency increases as the siren is moving toward you, and decreases as it is moving away, is correct

This change is a common physical demonstration of the Doppler effect.

<h3>What is Doppler effect ?</h3>

This effect refers to the  increase in the frequency of sound, as the source and observer move toward (or away from) each other.

The effect causes the sudden change in pitch noticeable in a passing siren.

Hence Option (B) i.e, the frequency increases as the siren is moving toward you, and decreases as it is moving away, is correct

Learn more about Doppler' effect here ;

brainly.com/question/27507962

#SPJ1

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staci is attending a music festival. the ticket to the festival costs $87.96, Staci pleans to purchase $30.00 t-shirts from the
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The total amount that Staci had in hand is $200.00.

The ticket at that time costs $87.96.

One Tshirt costs, $30.00.

Now that she has paid ticket, she will deduct the ticket from the cash she has in hand, so as to know the amount she is remaining with.

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To get the number of tshirt she can buy, she will divide the amount she has in hand by the amount per piece of t shirt.

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That is, $112.04 - $90 = $22.04.

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