contestada

a friend of yours is loudly singing a single note at 408 hz while racing toward you at 25.6 m/s on a day when the speed of sound is 346 m/s Part A: What frequency do you hear?Part B:What frequency does your friend hear if you suddenly start singing at 408 ?.

Respuesta :

The frequency of A is 428.840125 Hz. the frequency of B is 426.900585 Hz.

What is frequency ?

Frequency is the quantity of waves passing a fixed location in a unit of time. It also indicates how many vibrations or cycles a body in periodic motion makes in a given amount of time.

What is speed ?

The speed at which an object's location changes in any direction. The distance traveled in relation to the time it took to travel that distance is how speed is defined.

n' = n ( V - Vo ) / ( V - V s)

where V is the velocity of sound

          V0 is the velocity of observer

          Vs is the velocity of source

a) n' = 400 * ( 342 ) /( 342 - 23 )  = 428.840125 Hz

b) n' = 400 * ( 342 +23) /(342 )  = 426.900585 Hz

Therefore, the frequency of A is 428.840125 Hz. the frequency of B is 426.900585 Hz.

Learn more about frequency from the given link.

https://brainly.com/question/16222100

#SPJ4

Otras preguntas