Question

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 comma.

Homework Answers

Know the answer?
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
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 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...
2. 1189 A police car is sounding a siren with 1340 Hz on a 20°C day....
2. 1189 A police car is sounding a siren with 1340 Hz on a 20°C day. Answers must be within 2 Hz of correct answer.        Part Description Answer Save Status A. You are standing beside the road. What frequency do you hear as the police car approaches you at 128 km/hr? (include units with answer) A: 1495 Hz C: 1494.97 Hz Hints: 0,0 # tries: 1 B. You are standing beside the road. What frequency do you hear after...
2. 1189 A police car is sounding a siren with 1340 Hz on a 20°C day....
2. 1189 A police car is sounding a siren with 1340 Hz on a 20°C day. Answers must be within 2 Hz of correct answer.        Part Description Answer Save Status A. You are standing beside the road. What frequency do you hear as the police car approaches you at 128 km/hr? (include units with answer) A: 1495 Hz C: 1494.97 Hz Hints: 0,0 # tries: 1 B. You are standing beside the road. What frequency do you hear after...
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...
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....
A pedestrian standing on the sidewalk heard a frequency of 850 Hz when an ambulance is...
A pedestrian standing on the sidewalk heard a frequency of 850 Hz when an ambulance is travelling away from him with a speed of 45.0 m/s m / s . Speed of the sound in air = 343 m/s Part A What is the frequency of the ambulance's siren? Express your answer using three significant figures. Part B Then the ambulance stopped for a few seconds while sounding the siren. A driver in a car that is coming towards the...
A pedestrian standing on the sidewalk heard a frequency of 835 HzHz when an ambulance is...
A pedestrian standing on the sidewalk heard a frequency of 835 HzHz when an ambulance is travelling away from him with a speed of 30.0 m/sm/s .   Speed of the sound in air = 343 m/s a)What is the frequency of the ambulance's siren?   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 950 HzHz . What is the speed of the...
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...
1. An airplane is traveling 835 km/h in a direction 41.5 ∘ west of north PART...
1. An airplane is traveling 835 km/h in a direction 41.5 ∘ west of north PART A Find the components of the velocity vector in the northerly and westerly directions. Enter your answers using three significant figures separated by a comma. PART B How far north and how far west has the plane traveled after 4.00 h? Enter your answers using three significant figures separated by a comma. BOTH QUESTIONS NEED TWO ANSWERS. 2. A football is kicked at ground...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT