Question

A siren, attached to a parked car, emits a sound with frequency 960 Hz. You are driving in your car, either straight towards or straight away from the parked car, and hear a frequency of 1069 Hz. Are you moving towards or away from the car? towards away How fast must you be moving? (Give your answer rounded to two sigfigs.)40

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

parked Pavked Can V-VS 343-v 343-V, = 343 X g/o o 69 343-v, 308 , 026 vs = 343-308. 0-6 34.3 %please like my answer

Add a comment
Know the answer?
Add Answer to:
A siren, attached to a parked car, emits a sound with frequency 960 Hz. You are...
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
  • A police car drives past you with its siren on. While the car is approaching, you...

    A police car drives past you with its siren on. While the car is approaching, you hear a frequency of 550 Hz. A Recalling that the speed of sound is 767 mph, what is the speed of the police car if the siren has a frequency of 507 Hz when neither you nor the car are moving? B What would the apparent frequency of the siren be if you were driving toward the parked police car at this same speed....

  • The siren on an ambulance is emitting a sound whose frequency is 2850 Hz. The speed...

    The siren on an ambulance is emitting a sound whose frequency is 2850 Hz. The speed of sound is 343 m/s. (a) If the ambulance is stationary and you (the "observer") are sitting in a parked car, what are the wavelength and the frequency of the sound you hear? (b) Suppose that the ambulance is moving toward you at a speed of 26.6 m/s. Determine the wavelength and the frequency of the sound you hear. (c) If the ambulance is...

  • An ambulance is traveling East at 20m/s. The siren emits a fixed frequency of 500Hz. Each...

    An ambulance is traveling East at 20m/s. The siren emits a fixed frequency of 500Hz. Each of the following cars is traveling down the road as described. Rank the cars according to the frequency the driver will hear. Select 1 for the car which will hear the highest frequency. Remember that if the frequency is the same, select the same rank and skip the next number. I really suggest drawing a picture to help sort this out. Keep in mind...

  • 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...

  • 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...

  • A siren mounted on the roof of a firehouse emits sound at a frequency of 900...

    A siren mounted on the roof of a firehouse emits sound at a frequency of 900 Hz. A steady wind is blowing with a speed of 12.0 m/s. Firefighters are approaching the siren from various directions at 15.0 m/s. What frequency does a firefighter hear if he is approaching from an upwind position so that he is moving in the direction in which the wind is blowing? (Speed of sound in calm air to be 340 m/s 1.

  • A siren emits a frequency of 2,000 Hz. If an observer hears a frequency of 1,800...

    A siren emits a frequency of 2,000 Hz. If an observer hears a frequency of 1,800 Hz, is the siren moving toward or away from him?

  • 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 security alarm on a parked car goes off and produces a frequency of 1010 Hz....

    The security alarm on a parked car goes off and produces a frequency of 1010 Hz. The speed of sound is 343 m/s. As you drive toward this parked car, pass it, and drive away, you observe the frequency to change by 76.0 Hz. At what speed are you driving?

  • A speaker on a car produces a 150 Hz sound wave when parked. The car starts...

    A speaker on a car produces a 150 Hz sound wave when parked. The car starts to drive toward a pedestrian standing by the road, and the pedestrian hears the sound shift to 160 Hz when the car starts to drive toward them. The car passes the pedestrian and drives away from them. What frequency would the pedestrian hear as the car drives away? Assume the speaker continuously produces the same frequency, the car maintains the same speed, and the...

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
ADVERTISEMENT