An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 441 Hz when the train is approaching him and 440 Hz when the train is receding from him. Using these frequencies, he calculates the speed of the train. What value does he find? m/s (Assume the speed of sound is 345 m/s.)
Q: or moths to eat, a bat emits a chirp that lasts for 4.80 ms and then is silent while it listens for…
A: GivenTotal time taken=4.8 ms=4.8×10-3 s Bat is flying toward the moth at a speed of 4.40 m/sMoth is…
Q: A spaceship is approaching a space station at a speed of 2.25 ✕ 105 m/s. The space station has a…
A:
Q: A bat flying at 4.55 m/s is chasing an insect flying in the same direction. The bat emits a 39.9-kHz…
A: Here first we will calculate the frequency the insect hear and then the frequency of reflected the…
Q: A spaceship is approaching a space station at a speed of 1.60 ✕ 105 m/s. The space station has a…
A: Given data: u = 1.60 ✕ 105 m/s fs = 5.94 ✕ 1014 Hz c= 2.9979 ✕ 108 m/s Need to determine the…
Q: we are moving away from a stationary cell phone tower at 25 m/s. If the frequency emitted by the…
A:
Q: he calculates the speed of the train. What value does he find?
A: As per Doppler’s effect, the frequency observed by the student when the train approaching him, can…
Q: A spaceship is approaching a space station at a speed of 3.40 x 105 m/s. The space station has a…
A:
Q: Two submarines A and B are approaching each other along a straight line as shown below. The speed of…
A:
Q: Image the blood's speed? [No That i
A: The reflected wave dropper shift as,
Q: While running on the sidewalk at 5.2m/s, you hear an ambulance approaching you from behind. It is…
A:
Q: Red Light in air has a frequency of 4.3 x 104 Hz. What is the speed in glass for red light if it has…
A:
Q: While hunting for moths to eat, a bat emits a chirp that lasts for 2.10 ms and then is silent while…
A: Given data: total time for bat to chirp is t = 2.10 ms speed for bat vb = 4.40 m/s speed for moth vm…
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: You see an approaching train while standing on a railway platform. It blows its whistle, which you…
A: Given: Frequency of the source train: fs=500 [Hz] Frequency heard by stationery observer: f0=100…
Q: A spaceship is approaching a space station at a speed of 3.30 ✕ 105 m/s. The space station has a…
A: in this problem, the given data- the speed of spaceship is v=3.30×105m/s frequency of light f=…
Q: ng a highway with heavy traffic. A stationary car with an audio irns on its siren of 700-Hz…
A:
Q: AM radio signals are broadcast at frequencies between 550 kHz (kilohertz) and 1600 kHz and travel at…
A:
Q: Stan and Ollie are standing next to a train track. Stan puts his ear to the steel track to hear the…
A: speed of sound in air at 0oC = 331 msspeed of sound in steel = 5790 msLet the time taken by the…
Q: A group of spectators sit in the bleachers and watch a racecar approach and then pass in front of…
A: Let the frequency emitted by the car is f. let the frequency detected by spectators is f1. Let the…
Q: An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the…
A: Given : f1 = 463 Hz f2 = 440 Hz c = 343 m/s
Q: A train passes by a little boy at the depot.As it moves away from the boy at 65m/s, the whistle…
A:
Q: The driver of a car, who is approaching a siren at a speed of 90 km/h hears a sound with frequency…
A: Given Data : The speed of the car initially is given as vi=90 Kmh The frequency of the sound heard…
Q: problem. 'emitted What frequency strikes the stalactite? stalactite= Hz The stalactite reflects what…
A:
Q: As shown below, the red train is stationary and the green train is moving forward at a speed of 47…
A:
Q: An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the…
A:
Q: You've entered the Great Space Race. Your engines are hearty enough to keep you in second place.…
A:
Q: An ambulance passes by a stationary observer releasing its siren at a frequency of 479Hz. The…
A: Given Data : The frequency of the siren is given as fs = 479 Hz. The difference between the…
Q: During maneuvers in the northern Pacific Ocean, two attack submarines are heading straight for each…
A: Given Speed of the first submarine v1 = 30 km/h Speed of the second submarine v2 = 75 km/h Speed of…
Q: You stand by the railroad tracks as a train passes by. You hear a 1 000-Hz frequency when the train…
A: Velocity of sound = 340m/s Frequency when train approaches =1000Hz Frequency when train goes away…
Q: The crew of a ship going 35.4 m/s towards a distress beacon hears a frequency of 11khz. What is the…
A:
Q: A spaceship is approaching a space station at a speed of 2.00 × 10° m/s. The space station has a…
A: (a) The frequency of the beacon observed on the spaceship is fs=f0cc-v=5.97×1014Hz2.9979×108…
Q: A spaceship is approaching a space station at a speed of 1.60 ✕ 105 m/s. The space station has a…
A: For doppler effect of lightf=f01+β1-β when source is moving towards observer
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- A train approaches a station platform at a speed of 10 m/s, blowing its whistle at a frequency of 100 Hz, as measured by the engineer. What frequency will be measured by a person on the platform walking in the same direction as the train is moving at 1 m/s? (Assume the velocity of sound is 342 m/s.)The Doppler effect can be used to measure flow rates in blood. A sound wave is transmitted into a vein or an artery, where it is reflected off the moving red blood cells and then detected by a receiver. A transmitter uses a frequency of 10.0 MHz, and the blood flow rate is 0.50 m/s. What is the expected frequency shift?A spectator at a parade receives an 888 Hz tone from an oncoming trumpeter who is playing an 881 Hz note. At what speed v., is the musician approaching if the speed of sound is 337 —? VS' m S 903 m S ! No, that's not the correct answer.
- A spaceship is approaching a space station at a speed of 1.60 × 105 m/s. The space station has a beacon that emits green light with a frequency of 5.88 × 1014 Hz. (a) What is the frequency of the beacon observed on the spaceship? (Express your answer to five significant figures.) (b) What is the change in this frequency?A bicydist is traveling at t m/s towards a car at rest. if the dniver blows her horn at a frequency. of l627 Hz, what frequency in Hz does the bicyclist hear? Speed of Sound is 343 m/SPolice car with siren travelling v = 28m/s with siren frequency = 436 hz. Speed of sound is 343m/s. What is the freq in hz that an observer hears as car moves away?
- A bystander hears a siren vary in frequency from 590 Hz to 368 Hz as a fire truck approaches, passes by, and moves away on a straight street. What is the speed of the truck? (Take the speed of sound in air to be 343 m/s.)You've entered the Great Space Race. Your engines are hearty enough to keep you in second place. While racing, the person in front of you begins to have engine troubles and turns on his emergency lights that emit at a frequency of 5.640 x 1014 Hz. If the person in front of you is traveling 2627 km/s faster than you when he turns on his lights, what is the frequency of the emergency lights that you observe when it reaches you in your spaceship? (Enter your answer to four significant figures.) 4.0 Hz Additional MaterialsGoing down the road at 65 miles per hour on a 86.0 °F summer day, Bari heard a siren approaching. Bari knows that a police siren's frequency is 1280.0 Hz, but it didn't sound like that. Bari pulled over a lane, without slowing down, after seeing the flashing lights of the police car coming up from behind, and the police passed going 25 miles per hour faster than Bari was going. (1 mile = 1.60 km) a) what was the speed of sound on that warm summer day? b) How fast, in m/s, was the police car going? c) What frequency did Bari hear from the siren before the police car passed? d) What frequency did Bari hear from the siren after the police care had passed?
- An ultrasonic scan uses the echo waves coming from something moving (such as the beating heart of a fetus) inside the body and the waves that are directly received from the transmitter to form a measurable beat frequency. This allows the speed of the internal structure to be isolated and analyzed. The speed of the ultrasound waves in tissue is about 1540 m/s. What is the beat frequency ?beats detected when waves with a frequency of 3.80 MHz are used to scan a fetal heartbeat (moving at a speed of ±8.50 cm/s)? hint that came with it: In this problem there's a stationary source of ultrasound that reflects sound off of a moving object which then returns back to the ultrasound device to measure the frequency. There are 2 Doppler shifts that need to be considered. First the stationary source and the moving observer. Second, when the sound reflects off, the moving object now becomes the source and the ultrasound device becomes the observer. In this shift, the frequency measured by the…Yellow light travels at a speed of 1.97 108 m/s through a certain glass block. The wavelength of light transmitted through this kind of glass is 3.835 10-7 m. What frequency does yellow light have?Hz.A rocket on the ground vibrates at an audible frequency of 486 Hz. What is the frequency heard by an observer while the rocket is in flight and recedes away at 247 m/s from the stationary observer?