1. A bystander hears a siren vary in frequency from 586 Hz to 392 Hz as...
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 west of the truck? (The speed of sound is 343 m/s)
Answer in 3 significant figures in meters
8. What is the beat frequency heard when two
organ pipes, each open at both ends, are sounded together if one
pipe is 54 cm long and the other is 69 cm long?(The speed of sound
is 340 m/s)
Answer in 3 significant figures in Hz
Homework Answers
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1. A bystander hears a siren vary in frequency
from 586 Hz to 392 Hz as...
A bystander hears a siren vary in frequency from 550 Hz to 364 Hz as a...
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 578 Hz to 390 Hz as...
1. A bystander hears a siren vary in frequency from 578 Hz to 390 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.)
bystander hears a siren vary in frequency from 574 Hz to 358 Hz as a fire...
bystander hears a siren vary in frequency from 574 Hz to 358 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.)
A bystander hears a siren vary in frequency from 562 Hz to 394 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 i...
A bystander hears a siren vary in frequency from 562 Hz to 394 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.)
A truck driver hears the siren of a stopped police car at 950 HzHz . The...
A truck driver hears the siren of a stopped police car at 950 HzHz . The truck travels towards the car at a speed of 35.0 m/sm/s . Speed of the sound in air = 343 m/s Part A Calculate the frequency of the police siren. Express your answer using three significant figures. Part B Then the police stopped the truck driver to check his vehicle. After checking the truck the police car travels away while the truck at rest....
A motorcyclist is moving 24.5 m/s towards a stationary siren, and hears a 894 Hz sound....
A
motorcyclist is moving 24.5 m/s towards a stationary siren, and
hears a 894 Hz sound. What is the frequency of the siren when the
cyclist is stationary?
A motorcyclist is moving 24.5 m/s toward a stationary siren, and hears an 894 Hz sound. What is the frequency of the siren when the cyclist is stationary? (Hint: 894 Hz is the Doppler-shifted frequency.) (Speed of sound 343 m/s) (Unit Hz) nter
An ambulance sounding its siren with a frequency of 1550 Hz is traveling along a straight...
An ambulance sounding its siren with a frequency of 1550 Hz is traveling along a straight road with a speed of 34 m/s. Two cars are ahead of the ambulance in an adjacent lane. One car has completely stopped. A second car continues to travel in the same direction as the ambulance with a speed of 20 m/s. (a) Which of the two cars hears the highest pitch coming from the ambulance? Explain. (b) Suppose the driver of the stationary...
A trailer truck traveling east at 24.0 m/s sounds a 600 Hz horn. What is the...
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)
2. A trailer truck traveling east at 20.0 m/s sounds a 900 Hz horn. What is...
2. A trailer truck traveling east at 20.0 m/s sounds a 900 Hz horn. What is the wavelength of the sound heard by a stationary listener located west of the truck? (The speed of sound is 338 m/s) meters
Standing at a crosswalk, you hear a frequency of 520 Hz from the siren of an...
Standing at a crosswalk, you hear a frequency of 520 Hz from the siren of an approaching ambulance. After the ambulance passes, the observed frequency of the siren is 430 Hz. Determine the ambulance's speed from these observations. (Take the speed of sound to be 343 m/s.) m/s
A
motorcyclist is moving 24.5 m/s towards a stationary siren, and
hears a 894 Hz sound. What is the frequency of the siren when the
cyclist is stationary?
A motorcyclist is moving 24.5 m/s toward a stationary siren, and hears an 894 Hz sound. What is the frequency of the siren when the cyclist is stationary? (Hint: 894 Hz is the Doppler-shifted frequency.) (Speed of sound 343 m/s) (Unit Hz) nter
2. A trailer truck traveling east at 20.0 m/s sounds a 900 Hz horn. What is the wavelength of the sound heard by a stationary listener located west of the truck? (The speed of sound is 338 m/s) meters
Standing at a crosswalk, you hear a frequency of 520 Hz from the siren of an approaching ambulance. After the ambulance passes, the observed frequency of the siren is 430 Hz. Determine the ambulance's speed from these observations. (Take the speed of sound to be 343 m/s.) m/s
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