Fred rides on a toy train moving in a horizontal circle. The train has a 392.5...
A train is moving pass a crossing where cars are waiting for it to pass. While waiting, the driver of the lead car becomes sleepy and rests his head on the steering wheel, unintentionally activating the car's horn. A passenger in the back of the train hears the horn's sound at a frequency of 444 Hz and a passenger in the front hears it at 415 Hz. Find the train's speed and the horn's frequency, assuming the sound travels along...
A train is moving past a crossing where cars are waiting for it to pass. While waiting, the driver of the lead car becomes sleepy and rests his head on the steering wheel, unintentionally activating the car's horn. A passenger in the back of the train hears the horn's sound at a frequency of 440 Hz and a passenger in the front hears it at 415 Hz. Find the train's speed and the horn's frequency, assuming the sound travels along...
Q.12. Calculate the speed of sound at a temperature of 25C. If a stationary observer hears a train horn frequency of 1000 HZ what is the frequency of the horn sound as produced by the source horn of a train moving away from the observer at 50m/s? (20 Points)
A train is moving parallel and adjacent to a highway with a constant speed of 32 m/s. A car is traveling in the same direction as the train at 64 m/s. The car's horn sounds at 520 Hz and the train's whistle sounds at 320 Hz. When the car is behind the train what frequency does an occupant of the car observe for the train whistle? The speed of sound is 343 m/s. Answer in units of Hz. When the car is in...
A commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 330 m/s. (a) An observer waiting at the crossing receives a frequency of 210 Hz. What is the speed of the train (in m/s)? (b) What frequency (in Hz) does the observer receive as the train moves away?
As you stand near a railroad track, a train passes by at a speed of 34.1 m/s while sounding its horn at a frequency of 216 Hz. What frequency do you hear as the train approaches you and what frequency while it recedes? Take the speed of sound in air to be 344 m/s. approaching_____Hz receding______Hz
A light-rail commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 337 m/s. (a) An observer waiting at the crossing receives a frequency of 221 Hz. What is the speed of the train? m/s (b) What frequency does the observer receive as the train moves away? Hz
A train is moving at 23 m/s east when it blasts its horn at a frequency of 164 Hz. what frequency is heard by the driver of a car moving east at 15 m/s along a road parallel to the tracks? the speed of sound is 343 m/s.
Doppler Effect You are waiting at a train station when an approaching express train sounds its 400 Hz horn, warning everyone to stand back from the platform as it passes. If you perceive the frequency of the horn to be 425 Hz as the train approaches, how fast must the train be moving towards you? You may assume the speed of sound is 343 m/s.
A car drives at a speed of 25 m/s along a road parallel to a railroad track. A train traveling at 15 m/s sounds a horn that vibrates at 300 Hz. (a) If the train and car are moving toward each other, what frequency of sound is heard by a person in the car? (b) If the train and car are moving away from each other, what frequency of sound is heard in the car?