The siren of a fire truck at rest emits at a predominant frequency of 1950 Hz....

Question

Question

science physics

Answer 1

Answer #1

from dooplers effect formula. (note truck move towards you) vtvo f= f V-V where; v=speed of sound in air (343ms-1) Vo=velocit

Pls hit a like !!!!!!.

?

Answer 2

Similar Homework Help Questions

The predominant frequency of a certain fire truck's siren is 1450 Hz when at rest. Take...

The predominant frequency of a certain fire truck's siren is 1450 Hz when at rest. Take the speed of sound in air to be 343 m/s . What frequency do you detect if you move with a speed of 38.0 m/s toward the fire truck? What frequency do you detect if you move with a speed of 38.0 m/s away from the fire truck?
The siren of a police car at rest emits at frequency of 1600 Hz. What frequency...

The siren of a police car at rest emits at frequency of 1600 Hz. What frequency will you hear if you are at rest and the police car moves at 25 m/s toward you. Assume T air= 20 degrees C, v=343 m/s ANS: f'=1725.8
The predominant frequency of a certain fire truck's siren is 1690 Hz when at rest. Part...

The predominant frequency of a certain fire truck's siren is 1690 Hz when at rest. Part A What frequency do you detect if you move with a speed of 32.5 m/s toward the fire truck? f = Part B What frequency do you detect if you move with a speed of 32.5 m/s away from the fire truck? f =

The siren of an ambulance emits a predominant frequency of 1650 Hz. When the air temperature...

The siren of an ambulance emits a predominant frequency of 1650 Hz. When the air temperature is 12 °C, and the ambulance moves away from you at 16 m/s, will the frequency of the siren seem to you to be lower, higher, or the same as its actual frequency? [You are motionless.] A) lower B) higher C) the same
bystander hears a siren vary in frequency from 574 Hz to 358 Hz as a fire...

bystander hears a siren vary in frequency from 574 Hz to 358 Hz as a fire truck approaches, passes by, and moves away on a straight street. What is the speed of the truck? (Take the speed of sound in air to be 343 m/s.)
1. A bystander hears a siren vary in frequency from 586 Hz to 392 Hz as...

1. A bystander hears a siren vary in frequency from 586 Hz to 392 Hz as a fire truck approaches, passes by, and moves away on a straight street. What is the speed of the truck? (Take the speed of sound in air to be 343 m/s.) Answer in 3 significant figures m/s 2. A trailer truck traveling east at 34.0 m/s sounds a 1200 Hz horn. What is the wavelength of the sound heard by a stationary listener located...

A bystander hears a siren vary in frequency from 562 Hz to 394 Hz as a fire truck approaches, passes by, and moves away on a straight street. What is the speed of the truck? (Take the speed of sound i...

A bystander hears a siren vary in frequency from 562 Hz to 394 Hz as a fire truck approaches, passes by, and moves away on a straight street. What is the speed of the truck? (Take the speed of sound in air to be 343 m/s.)
A fire truck with sirens on, is driving north on a street. A car is driving...

A fire truck with sirens on, is driving north on a street. A car is driving south on the same street and sees the fire truck ahead. The car is moving at a speed of 15.7 m/s and the fire truck is moving at a speed of 31.8 m/s. The siren of the fire truck produces a 965 Hz sound. The speed of sound in air is 343 m/s. What frequency does the person in the car hear? If the...
1. A bystander hears a siren vary in frequency from 578 Hz to 390 Hz as...

1. A bystander hears a siren vary in frequency from 578 Hz to 390 Hz as a fire truck approaches, passes by, and moves away on a straight street. What is the speed of the truck? (Take the speed of sound in air to be 343 m/s.)

1 Consider the case where you hear the police siren at a frequency of 800 Hz...

1 Consider the case where you hear the police siren at a frequency of 800 Hz when approaching and 400 Hz after passing you. How fast is the police traveling? 2. approaching and 450 Hz after passing you, but because of changes in the atmosphere, the speed of sound is 300 m/s. How fast is the police traveling? Consider the case where you hear the police siren at a frequency of 800 Hz when 3. If the police car is...