Question

A police car moving at 67 m/s is initially behind a truck moving in the same...

A police car moving at 67 m/s is initially behind a truck moving in the same direction at 23 m/s. The natural frequency of the car's siren is 715Hz. The change in frequency observed by the truck driver as the car overtakes him is _____Hz

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 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 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...
A police car with a siren of 300 Hz. is moving toward a warehouse at 30...
A police car with a siren of 300 Hz. is moving toward a warehouse at 30 m/s. What frequency does the driver hear reflected from the warehouse? The speed of sound is 343 m/s.
A 1 150.0 kg car traveling initially with a speed of 25.000 m/s in an easterly...
A 1 150.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 8 000.0 kg truck moving in the same direction at 20.000 m/s. The velocity of the car right after the collision is 18.000 m/s to the east. (a) What is the velocity of the truck right after the collision? (Give your answer to five significant figures.) m/s east (b) What is the change in mechanical energy of...
- A car moving with over-speed limit constant speed 39.5 m/s passes a police car at...
- A car moving with over-speed limit constant speed 39.5 m/s passes a police car at rest. The police car immediately takes off in pursuit, accelerating with 6.0 m/s^2. How long does it take for police overtake the speeder? - A car moving with over-speed limit constant speed 39.5 m/s passes a police car at rest. The police car immediately takes off in pursuit, accelerating with 6.1 m/s^2. How far from initial point police car will reach the speeder? -...
Precisely 1.00 s after the speeder passes, the police officer steps on the accelerator; if the...
Precisely 1.00 s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.50 m/s2 , how much time passes after the police car is passed by a speeder and before the police car overtakes the speeder (assumed moving at constant speed)?
1. A car moving with over-speed limit constant speed 31.7 m/s passes a police car at...
1. A car moving with over-speed limit constant speed 31.7 m/s passes a police car at rest. The police car immediately takes off in pursuit, accelerating with 10.1 m/s^2. How long does it take for police overtake the speeder? 2. A car moving with over-speed limit constant speed 31.8 m/s passes a police car at rest. The police car immediately takes off in pursuit, accelerating with 9.6 m/s^2. How far from initial point police car will reach the speeder? 3....
a 1.5 kg car (1) initially moving at 4.0 m/s to the right collides with a...
a 1.5 kg car (1) initially moving at 4.0 m/s to the right collides with a 2.0 kg car (2) initially moving at 2.0 m/s to the left. After the inelastic collision, car 1 is moving to the left at 1.2 m/s A) What is the velocity and direction of car 2 after the collision? B) What is the change in total kinetic energy and the percentage of initial kinetic energy remaining after the collision?
Show your process •A truck moving at 40 m/s is followed by a cop moving at...
Show your process •A truck moving at 40 m/s is followed by a cop moving at 30 m/s. The cop uses ultrasound at a frequency of 25 kHz to monitor the speed of the truck. (actually, radar or laser light is used…but the idea is the same) a) What frequency ultrasound is observed by the truck? b) The sound is reflected off of the truck and travels back to the cop. What frequency does the cop observe?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT