The Doppler effect is a change in the observed frequency of a wave (such as a sound wave or light wave) when the source of the wave and observer are in motion relative to each other. The Doppler effect explains why an observer hears a change in pitch of an ambulance siren as the ambulance passes by the observer. The frequency F(v) of a sound relative to So an observer is given by F(v) = fal , where fa is the actual frequency of the sound at the source, so is the speed of sound in air (772.4 mph), and v is the speed at which the source of sound is moving toward the observer. Use this relationship for Exercise. Suppose that an ambulance moves toward an observer. a. Write F as a function of v if the actual frequency of sound emitted by the ambulance is 560 Hz. b. Use a graphing utility to graph the function from part (a) on the window [0, 1000, 100] by [0, 5000, 1000]. C. As the speed of the ambulance increases, what is the effect of the frequency of sound?
The Doppler effect is a change in the observed frequency of a wave (such as a sound wave or light wave) when the source of the wave and observer are in motion relative to each other. The Doppler effect explains why an observer hears a change in pitch of an ambulance siren as the ambulance passes by the observer. The frequency F(v) of a sound relative to So an observer is given by F(v) = fal , where fa is the actual frequency of the sound at the source, so is the speed of sound in air (772.4 mph), and v is the speed at which the source of sound is moving toward the observer. Use this relationship for Exercise. Suppose that an ambulance moves toward an observer. a. Write F as a function of v if the actual frequency of sound emitted by the ambulance is 560 Hz. b. Use a graphing utility to graph the function from part (a) on the window [0, 1000, 100] by [0, 5000, 1000]. C. As the speed of the ambulance increases, what is the effect of the frequency of sound?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter17: Traveling Waves
Section: Chapter Questions
Problem 76PQ
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![The Doppler effect is a change in the observed frequency of a wave (such as a sound wave or light wave) when the source
of the wave and observer are in motion relative to each other. The Doppler effect explains why an observer hears a
change in pitch of an ambulance siren as the ambulance passes by the observer. The frequency F(v) of a sound relative to
So
an observer is given by F(v) = fal
, where fa is the actual frequency of the sound at the source, so is the speed
of sound in air (772.4 mph), and v is the speed at which the source of sound is moving toward the observer. Use this
relationship for Exercise.
Suppose that an ambulance moves toward an observer.
a. Write F as a function of v if the actual frequency of sound emitted by the ambulance is 560 Hz.
b. Use a graphing utility to graph the function from part (a) on the window [0, 1000, 100] by [0, 5000, 1000].
C. As the speed of the ambulance increases, what is the effect of the frequency of sound?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F941bb2bc-fe62-42eb-ad8d-219b0d55b3df%2F808403f5-e46f-4b28-8c93-db911576fcc2%2Feigaek6.png&w=3840&q=75)
Transcribed Image Text:The Doppler effect is a change in the observed frequency of a wave (such as a sound wave or light wave) when the source
of the wave and observer are in motion relative to each other. The Doppler effect explains why an observer hears a
change in pitch of an ambulance siren as the ambulance passes by the observer. The frequency F(v) of a sound relative to
So
an observer is given by F(v) = fal
, where fa is the actual frequency of the sound at the source, so is the speed
of sound in air (772.4 mph), and v is the speed at which the source of sound is moving toward the observer. Use this
relationship for Exercise.
Suppose that an ambulance moves toward an observer.
a. Write F as a function of v if the actual frequency of sound emitted by the ambulance is 560 Hz.
b. Use a graphing utility to graph the function from part (a) on the window [0, 1000, 100] by [0, 5000, 1000].
C. As the speed of the ambulance increases, what is the effect of the frequency of sound?
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