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a friend of yours is loudly singing a single note at 386 hz while racing toward you at 23.9 m/s on a day when the speed of sound is 347 m/s .

Sagot :

He hears a frequency of 413.02 Hz, and your friend hears a frequency of 409.16 Hz if you start singing at 386.

What is speed, and what is the scientific term for it?

Speed refers to the rate with which a distance varies over time. There is some degree of temporal separation. As a result, a SI unit representing speed is created by fusing the foundational unit of time with the fundamental part of distance. As a result, it appears that the Si-derived metric of speed is the meter per second.

Briefing:

n' = n ( V - V₀ ) / ( V - V s)

where V is indeed the sound's velocity.

V₀ is the velocity of observer

Vs is the velocity of source

a) n' = 386 * ( 347 ) /( 347 - 23.9 ) = 413.02 Hz

b) n' = 386 * ( 347 +23.9 ) /(347 ) = 409.16 Hz

To know more about Speed visit:

https://brainly.com/question/28224010

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The complete question is-

A friend of yours is loudly singing a single note at 386 Hz while racing toward you at 23.9 m/s on a day when the speed of sound is 347 m/s.

Part A: What frequency do you hear?

Part B: What frequency does your friend hear if you suddenly start singing at 386 ?

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