4. An emergency vehicle is traveling at 45 m/s approaching a car heading in the same direction at a speed of 24 m/s. The emergency vehicle driver has a siren sounding at 650 Hz. At what frequency does the driver of the car hear the siren? (Assume the speed of sound in air is 340 m/s.)

Q: An ambulance with a siren emitting a frequency of 1600HZ overtakes and passes a cyclist pedaling a…

A: Given that:- The frequency emitted is, f0 =1600 Hz. The speed of the cyclist is, v0 =4 m/s. The…

Q: Akiko rides her bike toward a brick wall with a speed of 7.00 m/s while blowing a whistle that is…

A:

Q: A police car is approaching you at 26 m/s while you are at rest. The rest frequency of the siren is…

A: Given data:  Source is approaching to observer  Observer at rest  Velocity of the source (vs) = 26…

Q: Two trains approach each other, each train traveling at 31 m/s. The engineer on one train sounds his…

A:

Q: Two cars approach each other, each moving with a speed of 50 m/s, when one car starts to beep its…

A: Wavelength of the horn heard by the other driver. given, speed of carsvc=50 m·s-1frequencyf=475…

Q: A train passes by a little boy at the depot. As it moves away from the boy at 65 m/s, the whistle…

A:

Q: A commuter train blows its 200-Hz horn as it approache speed of sound is 335 m/s. (a) An observer…

A: We know the formula of the frequency that the received by the observer is given as  We know that…

Q: A man standing on a cliff hears the echo of his shout after 1 s. If the velocity of sound in air is…

A:

Q: A sonar device (which is 10 feet below the water surface) emits waves of frequency 50 kHz. The…

A: Given data: Sonar distance from surface d1 = 10 ft Frequency f = 50 kHz Wavelength λ=0.052 m Time t…

Q: You are traveling north on a highway moving at 23 m/sec. A police car is traveling toward you going…

A: It is given that

Q: A smoke alarm emits a signal of frequency 680 Hz.  The alarm goes off, and someone becomes so…

A: Given data The frequency emitted by the smoke alarm is f = 680 Hz. The falling speed of an alarm is…

Q: A fire truck emits a sound with frequency of 775Hz a. What is the frequency detected by stationary…

A: Doppler effect is the change in frequency of a wave due to relative motion of the observer and the…

Q: A truck moving with a speed of 31.8 m/s sounds a 136 Hz horn. What frequency is heard by an observer…

A: The observer status near the tracks is the receiver of the sound wave, and because the truck is…

Q: The driver of a car traveling 27.0 m/s sounds his horn as he approaches an intersection. If the horn…

A:

Q: 34. A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335…

A: Given that - Frequency of train horn Speed of the sound Frequency of voice received by the observer…

Q: ng a highway with heavy traffic. A stationary car with an audio irns on its siren of 700-Hz…

A:

Q: A person is sitting in a bus driving at voa=58.0000 kmh . There is an ambulance coming from the…

A:

Q: The prey moves towards The speed of the prey, Vprey = 13.52 x Units m/s What frequency will the bat…

A:

Q: You've entered the Great Space Race. Your engines are hearty enough to keep you in second place.…

A: Original frequency, f = 5.580 x 1014 Hz Velocity of source, v = 2609 km/s = 2609×10³ m/s Apparent…

Q: 2. In still air, with a speed of sound, v= 340.0m/s, you are driving directly toward a flat cliff…

A: Given: V=340 m/sfo=512 Hzf'=623.3 Hz

Q: An ambulance, with sirens frequency of 2000 Hz, was parked by the Palm Bay Road. You were driving…

A: Observed frequency when observer is moving towards the source

Q: A truck travels southbound on a highway at a speed of 14 m/s. A police car, traveling northbound at…

A:

Q: truck is moving at 33 m/s, and a car in front of the truck is moving in the same direction at 43…

A: Speed of source = vs = 33 m/s Speed of observer vo = 43 m/s Original frequency = 193 Hz

Q: 4. A bystander hears a siren vary in frequency from 594 Hz to 388 Hz as a fire truck approaches,…

A:

Q: Tou are driving along a highway at 25.0 m/s when you hear the siren of a poli pproaching you from…

A: According to dopler's effect,frequency listen by listner. f1=V±VeV±VsfVe=speed of listner…

Q: A person is sitting in a bus driving at voa=58.0000 km/h . There is an ambulance coming from the…

A:

Q: A driver travels south on a highway at a speed of 25 m/s. A police car, driving south at a speed of…

A:

Q: 2. You are in a car traveling at 25.0 m/s toward a pole-mounted warning siren. If the siren's…

A:

Q: 4. An observer is standing on the platform of a railway station. A train goes through the station…

A: Speed of sound in air is Decrease in sound when the vehicle crosses the observer is Find:The speed…

Q: While sitting next to a road on a calm, warm 27.9ºC evening, you see an ambulance's lights flashing…

A:

Q: A bystander hears a siren vary in frequency from 590 Hz to 368 Hz as a fire truck approaches, passes…

A:

Q: A fire engine siren emits sound at 1260 Hz. The fire engine is driving down the street toward you at…

A:

Q: 5. Suppose you are standing by a railway. You record the train whistle at 754 Hz when the train is…

A: We can take the speed of sound as a function of temperature (in centigrade) to find the speed of…

Q: 9. A jet flies toward higher altitude at a constant speed of 1 963 m/s in a direction that makes an…

A: Given, Speed of jet, v=1963 m/s Speed of sound in air, v'=340 m/s Now from the diagram,

Q: 12. Two trains on separate tracks moves toward each other. Train 1 has moved with a speed of 118…

A:

Q: 7. On a given day, the speed of sound in air is 3434m/s. As an emergency vehicle approaches you, you…

A: Write the expression for observed frequency f' in terms of the sound frequency. the speed of the…

Q: Going down the road at 65 miles per hour on a 86.0 °F summer day, Bari heard a siren approaching.…

A: a) To find the speed of sound on that warm summer day, we can use the formula: v = 331.5 + 0.6T…

Q: 30 m from an ultrasonic sensor. The total travel time of the ultrasonic wave is 33 ms…

A:

Q: Early Doppler shift experiments were conducted using a band playing music on a train. A trumpet…

A: The frequency of the source (trumpet), fs=320 Hz   The frequency observed by the stationary…

Q: A bat is flying 5.10 m/s is chasing an insect flying in the same direction. The bat emits a 39.9 kHz…

A: fo = [ ( V ± vo) / ( V ± vs) ] fs here Plus and minus depending on the relative direction of the…

Q: 1.  A sound wave propagating in air has a frequency of 220 Hz. What is its wavelength? (The speed…

A:

Q: You are on the relaxing on the beach (not moving). A speedboat honking its 450 Hz horn is coming…

A:

Q: . A siren emitting a frequency of 448 Hz is moving away from a person with a velocity of 84.0 km/h.…

A: This problem can be solved using the formula for Doppler effect in sound.

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.