2. A trailer truck traveling east at 20.0 m/s sounds a 900 Hz horn. What is...
A trailer truck traveling east at 24.0 m/s sounds a 600 Hz horn. What is the wavelength of the sound heard by a stationary listener located west of the truck? (The speed of sound is 336 m/s)
A bystander hears a siren vary in frequency from 550 Hz to 364 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.) m/s b. A trailer truck traveling east at 20.0 m/s sounds a 800 Hz horn. What is the wavelength of the sound heard by a stationary listener located west of the truck? (The speed...
1. A bystander hears a siren vary in frequency from 586 Hz to 392 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.) Answer in 3 significant figures m/s 2. A trailer truck traveling east at 34.0 m/s sounds a 1200 Hz horn. What is the wavelength of the sound heard by a stationary listener located...
A car is parked 20.0 m directly south of a railroad crossing. A train is approaching the crossing from the west, headed directly east at a speed of 55.5 m/s. The train sounds a short blast of its 312-Hz horn when it reaches a point 20.0 m west of the crossing. What frequency does the car's driver hear when the horn blast reaches the car? The speed of sound in air is 343 m/s. (Hint: Assume that only the component...
A baseball hits a car, breaking its window and triggering its alarm which sounds at a frequency of 1230 Hz. What frequency (in Hz) is heard by a boy on a bicycle riding away from the car at 7.65 m/s? Take the speed of sound to be 343 m/s. part 2 An airplane traveling at half the speed of sound emits a sound of frequency 4.23 kHz. (a) At what frequency does a stationary listener hear the sound as the...
Ship A is traveling 20 m/s due east. Ship B is traveling 15 m/s due west away from Ship A. Ship A sounds a horn with a frequency of 1500 Hz. What frequency does an observer on Ship A hear in the reflected wave from Ship B?
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.
At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-fourth the car's speed hears a frequency of 419 Hz. What is the speed of the car? (Assume the speed of sound in air is 343 m/s)
At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-eighth the car's speed hears a frequency of 419 Hz (a) Is the cyclist ahead of or behind the car? ahead of the car behind the car (b) What is the speed of the car? (Assume the speed of sound in air is 343 m/s.) m/s
At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-eighth the car's speed hears a frequency of 419 Hz. (a) Is the cyclist ahead of or behind the car? o ahead of the car O behind the car (b) What is the speed of the car? (Assume the speed of sound in air is 343 m/s.) m/s