Question

A siren of a police car at rest emits at a predominant frequency of 1310 Hz....

A siren of a police car at rest emits at a predominant frequency of 1310 Hz. A frequency of 1390_Hz is heard when the police car is approaching an observer standing by a bus stop. a) What is the velocity of the police car in m/s? b) what will be the frequency heard by the person standing at the bus stop when the police car is moving away? and c) Report the velocity of the police car in miles per hour. 1 mile = 1.60934_km.

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 police car sounding a siren with a frequency of 1600 Hz is traveling at 115...
A police car sounding a siren with a frequency of 1600 Hz is traveling at 115 km/h . What frequencies does an observer standing next to the road hear as the car approaches and as it recedes? What frequencies are heard in a car traveling at 90.0 km/h in the opposite direction before and after passing the police car? The police car passes a car traveling in the same direction at 80.0 km/h. What two frequencies are heard in this...
A police car sounding a siren with a frequency of 1560 Hz is traveling at 110...
A police car sounding a siren with a frequency of 1560 Hz is traveling at 110 km/h . A.What frequencies does an observer standing next to the road hear as the car approaches and as it recedes? Express your answers using three significant figures separated by a comma. B.What frequencies are heard in a car traveling at 90.0 km/h in the opposite direction before and after passing the police car? Express your answers using three significant figures separated by a...
stationary police car emits a sound of frequency 1200 Hz that bounces off of a car...
stationary police car emits a sound of frequency 1200 Hz that bounces off of a car on the highway and returns with a frequency of 1280 Hz . The police car is right next to the highway, so the moving car is traveling directly toward or away from it. Part A: How fast was the moving car going? Part B: Was the moving car moving towards or away from the police car? Part C: What frequency would the police car...
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 stationary police car emits a sound of frequency 1225 Hz that bounces off of a...
A stationary police car emits a sound of frequency 1225 Hz that bounces off of a car on the highway and returns with a frequency of 1265 Hz. The police car is right next to the highway, so the moving car is traveling directly toward or away from it. What frequency would the police car have received if it had been traveling toward the other car at 22.0 m/s? P/s: the car was moving 5.53 m/s
The siren of a police car is heard by a sitting at a cafe. The police...
The siren of a police car is heard by a sitting at a cafe. The police car is traveling at 1.10 x 105 km/hr. If the siren has a frequency of 1.02 kHz, calculate the frequency heard by the person as the car moves towards and then away from them.
A stationary police car emits a sound of frequency 1200 Hz that bounces off of a...
A stationary police car emits a sound of frequency 1200 Hz that bounces off of a car on the highway and returns with a frequency of 1230 Hz . The police car is right next to the highway, so the moving car is traveling directly toward or away from it. Part A How fast was the moving car going? What frequency would the police car have received if it had been traveling toward the other car at 17.0 m/sm/s ?...
A police car sounding a siren with a frequency of 1590 HzHz is traveling at 130...
A police car sounding a siren with a frequency of 1590 HzHz is traveling at 130 km/hkm/h . a) What frequencies does an observer standing next to the road hear as the car approaches and as it recedes? b) What frequencies are heard in a car traveling at 90.0 km/hkm/h in the opposite direction before and after passing the police car? c) The police car passes a car traveling in the same direction at 80.0 km/hkm/h. What two frequencies are...
1. a police car has a siren with a frequency of 400 Hz. when the car...
1. a police car has a siren with a frequency of 400 Hz. when the car travels 20 m/s towards a building, the sound bounces off the building back towards the car. what beat frequency is heard in the car? Answer is 49.5 Hz please explain how 2. A charge of 8 nC is placed 2 meters to the west of the origin and a charge of -4 nC is placed 1 meter to the south of the origin. find...
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...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT