Question

A convertible with the top down is traveling north on a road at a speed of...

A convertible with the top down is traveling north on a road at a speed of 27.0 m/s. An ambulance, traveling south at a speed of 47.0 m/s, approaches with its siren producing sound at a frequency of 2450 Hz. (Enter your answers in Hz. Assume that the speed of sound in air is 343 m/s.)

(a)

What frequency does the driver of the convertible observe as the ambulance approaches? (Enter your answer to the nearest integer.)

Hz

(b)

What frequency does the driver of the convertible detect after the ambulance passes her?

Hz

(c)

Repeat parts (a) and (b) for the case when the ambulance is traveling northbound.

i.)while ambulance overtakes (Hz)

ii.)after ambulance passes

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A motorcyclist is traveling north on a road at a speed of 29.0 m/s. A fire...
A motorcyclist is traveling north on a road at a speed of 29.0 m/s. A fire truck, traveling south at a speed of 49.0 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 fire truck approaches? (Enter your answer to the nearest integer.) (b) What frequency does the motorcyclist detect after...
A driver travels northbound on a highway at a speed of 24.0 m/s. A police car,...
A driver travels northbound on a highway at a speed of 24.0 m/s. A police car, traveling southbound at a speed of 31.0 m/s, approaches with its siren producing sound at a frequency of 2400 Hz. (a) What frequency does the driver observe as the police car approaches? Hz (b) What frequency does the driver detect after the police car passes him? Hz (c) Repeat parts (a) and (b) for the case when the police car is traveling northbound. while...
You are on a county road driving at a speed of 28 m/s when you hear...
You are on a county road driving at a speed of 28 m/s when you hear the siren of an oncoming fire engine. As the fire engine approaches you, you hear the frequency of its siren as 2830 Hz, but once it has passed you the frequency becomes 1860 Hz. What is the speed of the fire engine? The speed of sound in air is 343 m/s.
The frequency will sound different if we hear a sound source moving relative to us. This...
The frequency will sound different if we hear a sound source moving relative to us. This phenomenon is called the Doppler Effect in Physics. An ambulance sounds a siren at 1515 Hz and passes a cyclist moving at 2.12 m / s. After the ambulance passed, the cyclist heard a siren sound at a frequency of 1501 Hz. The speed of sound in the air is about 343 m / s. What is the speed (speed) of the ambulance in...
An ambulance has a siren of frequency 880 Hz. You are sitting at a stop light...
An ambulance has a siren of frequency 880 Hz. You are sitting at a stop light as the ambulance passes you, traveling at a constant 22 m/s. If the speed of sound is 343 m/s, what is the change in the frequency that you hear as the ambulance passes you? A.) -56 Hz    B.) -53 Hz     C.) -60 Hz     D.) -116 Hz     E.) -113 Hz
Standing at a crosswalk, you hear a frequency of 590 Hz from the siren of an...
Standing at a crosswalk, you hear a frequency of 590 Hz from the siren of an approaching ambulance. After the ambulance passes, the observed frequency of the siren is 497 Hz. Determine the ambulance's speed from these observations. (Take the speed of sound to be 343 m/s.)
A car moves at 20 m/s north. An ambulance passes it going 25 m/s north, with...
A car moves at 20 m/s north. An ambulance passes it going 25 m/s north, with its siren on, f = 500 Hz. Find the frequency heard in the car when the ambulance is moving away. (The speed of sound in air is 343 m/s)
A pedestrian standing on the sidewalk heard a frequency of 845 Hz when an ambulance is...
A pedestrian standing on the sidewalk heard a frequency of 845 Hz when an ambulance is traveling away from him with a speed of 45.0 m/s. Speed of sound in air = 343 m/s A) what is the frequency of the ambulance siren? Express your answer using three significant figures. B) Then the ambulance stopped for a few seconds while sounding the siren. A driver in a car that is coming towards the ambulance heard a frequency of 995 Hz....
The siren on an ambulance is emitting a sound whose frequency is 2450 Hz. The speed...
The siren on an ambulance is emitting a sound whose frequency is 2450 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 26.8 m/s. Determine the wavelength and the frequency of the sound you hear. (c) If the ambulance is...
(a) A fire truck with the 500 Hz siren on approaches an observer at 50 m/s,...
(a) A fire truck with the 500 Hz siren on approaches an observer at 50 m/s, who is at rest. What frequency would observer detect? (b) A fire truck with the 500 Hz siren on is at rest. An observer approaches the fire truck with the speed of 50 m/s. What frequency would the observer detect? (The speed of sound is 343 m/s.)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT