Question

Repeat this problem, but assume the ambulance and car are going the same direction, with the...

Repeat this problem, but assume the ambulance and car are going the same direction, with the ambulance initially behind the car. The speeds and the frequency of the siren are the same as in the example. Find the frequency heard by the observer in the car (a) before and (b) after the ambulance passes the car. Note: The highway patrol subsequently gives the driver of the car a ticket for not pulling over for an emergency vehicle!

Ambulance speed: 75 mi/hr

Car speed: 55 mi/hr

Sound speed in air: 345 mi/hr

Siren frequency: 400 hertz

This is all the info you need. Please show work and explain in english what you are doing at each step. Please write legibly.

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Firstly convert the mile per hour to meter per second then using Doppler effect formula

d sund i Aene a. bsfre (v - vo) f (V-%) (315 24.5822 2 345-33. s28 1411.481 Hz t en 34S 24.38 2 x 100

Add a comment
Know the answer?
Add Answer to:
Repeat this problem, but assume the ambulance and car are going the same direction, with the...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Tutorial Sound Waves . A sound source which produces sound of frequency 300 Hz moves along...

    Tutorial Sound Waves . A sound source which produces sound of frequency 300 Hz moves along a straight line and passes by a stationary observer. The observer notices that the frequency of sound heard change Speed of sound in air 330 m s-1] 0when the sound is moving away from him. Determine the speed of the sound source. its siren emitting a sound of frequency 600.0 Hz moves with a speed of me that the speed of sound is 345...

  • An ambulance travels east down a highway at a speed of 33.5 m/s, and its siren...

    An ambulance travels east down a highway at a speed of 33.5 m/s, and its siren emits a sound frequency at a frequency of 400 Hz. What frequency is heard by a person in a car traveling west at 24.6 m/s: a) as the car approaches the ambulance ? b) as the car moves away from the ambulance ? (Take the speed of sound to be 343 m/s) PLEASE INCLUDE WRITTEN EXPLANATION

  • 1.An ambulance is traveling east at 54.5 m/s. Behind it a car travels along the same...

    1.An ambulance is traveling east at 54.5 m/s. Behind it a car travels along the same direction at 32.3 m/s. The ambulance driver hears his siren with a wavelength of 0.41 m What wavelength would a stationary observer behind the ambulance measure for the sound? The velocity of sound in air is 343 m/s. Answer in units of m 2. What wavelength would be measured on the car’s hood? Answer in units of m.

  • An ambulance sounding its siren with a frequency of 1550 Hz is traveling along a straight...

    An ambulance sounding its siren with a frequency of 1550 Hz is traveling along a straight road with a speed of 34 m/s. Two cars are ahead of the ambulance in an adjacent lane. One car has completely stopped. A second car continues to travel in the same direction as the ambulance with a speed of 20 m/s. (a) Which of the two cars hears the highest pitch coming from the ambulance? Explain. (b) Suppose the driver of the stationary...

  • A bicyclist and an emergency vehicle are traveling in the same direction. The bicyclist is pedaling...

    A bicyclist and an emergency vehicle are traveling in the same direction. The bicyclist is pedaling at 5.00 m/s and hears the frequency of the emergency vehicle's siren change from 467 Hz to 423 Hz as the vehicle overtakes and passes him. The ambient temperature is 22.3°C. Determine the speed of the emergency vehicle. PLEASE SHOW WORK AND ALL STEPS

  • ADDITIONAL PROBLEM Question 14.2a A bicyclist and an emergency vehicle are traveling in the same direction....

    ADDITIONAL PROBLEM Question 14.2a A bicyclist and an emergency vehicle are traveling in the same direction. The bicyclist is pedaling at 6.00 m/s and hears the frequency of the emergency vehicle's siren change from 468 Hz to 428 Hz as the vehicle overtakes and passes him. The ambient temperature is 22.1°C. Determine the speed of the emergency vehicle. m/s

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT