Question

PLEASE SHOW ALL STEPS A fire truck moving at a speed of 40.0 m/s sounds its...

PLEASE SHOW ALL STEPS
A fire truck moving at a speed of 40.0 m/s sounds its siren, which has a frequency of 1250 Hz. It is

passing by a stationary observer in a quiet neighborhood on a day when the temperature is 24.0° C.

A) What is the speed of sound in air on this day?

B) Calculate the frequency of the siren as heard by the stationary observer when the fire truck is approaching the observer.

C) Calculatethefrequencyofthesirenasheardbythestationaryobserverwhenthefiretruckis moving away from the observer.

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 truck moving at 36 m/s passes a police car moving at 45 m/s in the...
A truck moving at 36 m/s passes a police car moving at 45 m/s in the opposite direction. The frequency of the sound emitted by the siren on the police car is 500 Hz and the speed of sound in air is 343 m/s. (a) What is the frequency heard by an observer in the truck as the police car approaches the truck? (b) What is the frequency heard by an observer in the truck after the police car passes...
(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.)
A fire truck emits an 1080 Hz siren. As the truck approaches an observer on the...
A fire truck emits an 1080 Hz siren. As the truck approaches an observer on the sidewalk, he perceives the frequency of the siren to be 1150 Hz. Approximately what frequency does he hear after the truck passes and is moving away? Assume the truck's velocity remains constant, and that the velocity of sound in air is 340 m/s.
A truck traveling eastward is moving at 16.0 m/s . a police car is traveling westward...
A truck traveling eastward is moving at 16.0 m/s . a police car is traveling westward at 46.0m/s if the frequency of the sound coming from the police siren is a constant 520.0 Hz( actually produced frequency), what is the change in frequency (in Hz) heard by an observer in the truck as the two vehicles approach each other as compared to moving away from each other? the temperature of the air is 95.0 degree F. a. 240 b. 236...
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 train is moving away from an observer at 31.0 m/s blows a 305 Hz whistle....
A train is moving away from an observer at 31.0 m/s blows a 305 Hz whistle. What frequency is detected by the stationary observer? Assume standard pressure and 20°C for the speed of sound.
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)
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.
Two semi-trucks are moving toward each other at 31.9 m/s relative to the ground (meaning this...
Two semi-trucks are moving toward each other at 31.9 m/s relative to the ground (meaning this is the speed of each truck with respect to the ground). One truck is honking its horn that has a frequency of 530 Hz. (a) What frequency is heard by the driver of the other truck when there is no wind? (b) What frequency is heard by the driver of the other truck when the wind is blowing at 31.9 m/s toward the horn...
A fire engine's siren is 1400 Hz when at rest. Assume that the speed of sound...
A fire engine's siren is 1400 Hz when at rest. Assume that the speed of sound is 343 m/s in air. What frequency do you detect if you move with a speed of 21 m/s toward the fire engine? (Express your answer to two significant figures.) What frequency do you detect if you move with a speed of 21 m/s away from the fire engine? (Express your answer to two significant figures.)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT