A policeman sitting in his unmarked police car sees an approaching motorcyclist go through a red light two blocks away. He turns on his siren at a frequency of 1000 Hz as the motorcyclist heads directly toward him at 60 mph (26.82 m/s). a)What frequency does the motorcyclist hear? (Enter your answer to at least the nearest integer. Assume the speed of sound in air is 331 m/s.) B)What frequency does the motorcyclist hear when stopped with the police car approaching at 60 mph (26.82 m/s)? (Enter your answer to at least the nearest integer. Assume the speed of sound in air 331 m/s.)

Q: a. What frequency (in Hz) is received by a person watching an oncoming ambulance moving at 118 km/h…

A: *The ambulance moving at a speed is vs = 118 km/h = 32.78 m/s *The emitting frequency is f0 = 600 Hz…

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: Ball having mass 3.4kg and velocity 7.2m/s travels to the east. Impulse given at point O, makes it…

A:

Q: A car moving at 20.0 m/s passes a stationary ambulance, the siren of which produces a frequency of…

A:

Q: Yellow light travels through a certain glass block at a speed of 1.97 ✕ 108 m/s. The wavelength of…

A:

Q: Image the blood's speed? [No That i

A: The reflected wave dropper shift as,

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: The figure below shows wave fronts of sound waves from the siren of a police car. Two people on both…

A:

Q: An fıre truck races down a road at 75 km/h with its siren blazing. The siren has a frequency of 580…

A: Calculate the speed of sound in air at T=22°C. v=331 m/s1+T273 °C=331 m/s1+22 °C273 °C≅344 m/s Here,…

Q: On a 20°C°C night, a bat hovering in the air emits an ultrasonic chirp that has a frequency of 45…

A: It is given that, the temperature of the air is T=20°C the frequency of the source is f=45…

Q: problem. 'emitted What frequency strikes the stalactite? stalactite= Hz The stalactite reflects what…

A:

Q: A sound source with a frequency of 650 Hz moves away from a stationary observer at a rate of 30m/s.…

A: We have given  Speed of source Vs = 30 m/s  Frequency of sound  fs = 650 Hz  As observer is…

Q: Horseshoe bats use the Doppler effect to determine their location. A Horseshoe bat flies toward a…

A: Given:        Speed of Horseshoe batv= 15 m/s        Frequency of emitted sound f= 19.6 kHz…

Q: A giant sea monster chases a deep sea submarine near the bottom of the North Atlantic. The…

A: Speed of submarine (v) = 30 msFrequency of sound signal emitted by sea monster (f) = 1000 Hz…

Q: The strategy to use when calculating the force exerted by a set of several point charges is to find…

A:

Q: The driver of a car traveling 24.0 m/s sounds his horn as he approaches an intersection. If the horn…

A:

Q: There was an accident and NASA engineers are trying to sort out where two of their Mars Rovers,…

A: Recall VαTSpeed of sound is proportional to square root of temperature.

Q: A sound source with a frequency of 725 Hz moves away from a stationary observer at a rate of 15m/s…

A: When there is a relative motion between the observer and the source, the observed frequency of the…

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: As part of a college physics lab. A car that is giving off a sound with a frequency of 350 Hz, is…

A:

Q: Standing at a crosswalk, you hear a frequency of 590 Hz from the siren of an approaching ambulance.…

A: Given that:  The speed of the sound is v=343 m/s The speed of the observer is zero, it is at rest.…

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

A:

Q: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: Given data:  Frequency (f) = 5.89×104 Hz Speed of sound (v) = 343 m/s

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

A:

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

A: Frequency of light is f = 5.640 x 1014 Hz Speed of the person is v = 2627 km/s = 2627000 m/s

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

A:

Q: If a stationary dolphin emits a call at a sound frequency of 53 kHz. The sound wave reflects off a…

A: Original frequency of sound produced by stationary dolphin (f) = 53 kHz speed of sound (v) = 343 m/s…

Q: Standing at a crosswalk, you hear a frequency of 520 Hz from the siren of an approaching ambulance.…

A: Given dataThe frequency of the siren from approaching the ambulance is f1 = 520 Hz.The frequency of…

Q: . What is the speed of the police car? The speed of sound in air is 343 m/s.

A: f'=frequency when source getting close=1330 Hz f''=frequency when source getting away=1370 Hz…

Q: alk, you hear a frequency of 570 Hz from the siren of an approaching ambulance. After the ambulance…

A: The frequency of the  siren of an approaching ambulance, when you  standing at a crosswalk  f1 = 570…

Q: A bystander hears a siren vary in frequency from 584 Hz to 370 Hz as a fire truck approaches, passes…

A: Ans:- Image-1

Q: bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength…

A: Given Data: The frequency emitted by a bat is: f=7.69×104 Hz The speed of sound in air is: v=343 m/s…

Interference of sound

Seiche

A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.