A motorcycle and a police car are moving toward one another. The police car emits sound...

Question

Question

A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 533 Hz and has a

Answer 1

Answer #1

from Dopplers effect, fr fol v. t Vobserver fe v- Usource 343 + 12.8 f = (533 H2) 349 – 34-2 Ifa f = 614 Hz CS Scanned with

Answer 2

Similar Homework Help Questions

3 A motorcycle and a police car are moving toward one another. The police car emits...

3 A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 533 Hz and has a speed of 30.2 m/s. The motorcycle has a speed of 12.2 m/s. Part A What frequency does the motorcyclist hear? f′= nothing Hz Request Answer Provide Feedback
Krishna and Seldon now try a homework problem. A policeman sitting in his unmarked police car...

Krishna and Seldon now try a homework problem. A policeman sitting in his unmarked police car sees an approaching motorcyclist go through a red light two blocks away. He turns on his siren at a frequency of 1000 Hz as the motorcyclist heads directly toward him at 51 mph (22.80 m/s). What frequency does the motorcyclist hear? (Enter your answer to at least the nearest integer. Assume the speed of sound in air is 331 m/s.) What frequency does the...
A police siren emits a sinusoidal wave with frequency fS=390Hz . On this cool day, the...

A police siren emits a sinusoidal wave with frequency fS=390Hz . On this cool day, the speed of sound is 340 m/s . What frequency will a stationary listener hear when the police car is moving away at 30.0 m/s ? Part A - Practice Problem: What frequency does the police officer hear? 30.0 m/s

4. If the police car is moving at 34 m/s and you hear a frequency of...

4. If the police car is moving at 34 m/s and you hear a frequency of 450 Hz. when the car has passed you, what is the original frequency of the police car? (use the speed of sound as 343 m/s).
3. If the police car is moving at 34 m/s and you hear a frequency of...

3. If the police car is moving at 34 m/s and you hear a frequency of 550 Hz. when the car is approaching, what is the original frequency of the police car? (use the speed of sound as 343 m/s)
A police car is traveling at 144 km/h toward you. The police car's siren is sounding...

A police car is traveling at 144 km/h toward you. The police car's siren is sounding at a frequency of 550 Hz. What frequency of sound, in Hz, would you hear as you approach the police car at speed of 99 km/h?

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
A motorcyclist is traveling north on a road at a speed of 21.0 m/s. A police...

A motorcyclist is traveling north on a road at a speed of 21.0 m/s. A police car, traveling south at a speed of 33.0 m/s, approaches with its siren producing sound at a frequency of 2550 Hz. (Enter your answers in Hz. Assume that the speed of sound in air is 343 m/s.) (a) What frequency does the motorcyclist observe as the police car approaches? (Enter your answer to the nearest integer.) Hz (b) What frequency does the motorcyclist detect...
You are moving at a speed of 38 m/s, chasing another car moving at 12 m/s....

You are moving at a speed of 38 m/s, chasing another car moving at 12 m/s. You have a distance measuring device that emits sound at a frequency of 528 Hz.The Speed of sound in 340 m/s. What frequency does the car hear from you? The sound arriving at the car reflects from the car, and arrives at your location. What frequency do you receive? please explain clearly as I do not know how to approach this question. thank you

Thinequency of the sound heard by the motorcyclist is given by the expression A motorcyclist moves...

Thinequency of the sound heard by the motorcyclist is given by the expression A motorcyclist moves to the right with a speed of 20 m/s. A police car with velocity 30 m/s to the left emits a sound with a frequency of 400 Hz. Speed of sound in air is 340 m/s.