Two train whistles, A and B , each have a frequency of 396 Hz . A is stationary and B is moving toward the right (away from A ) at a speed of 35.0 m/s . A listener is between the two whistles and is moving toward the right with a speed of 15.0 m/s . (See (Figure 1) .)
Part A
What is the frequency from A as heard by the listener?
Express your answer in hertz
Part B
What is the frequency from B as heard by the listener?
Express your answer in hertz
Part C
What is the beat frequency detected by the listener?
Express your answer in hertz
Homework Answers
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Two train whistles, A and B , each have a
frequency of 396 Hz . A...
Thinking and Inquiry Two train whistles, A and B each have a frequency of 392Hz. A...
Thinking and Inquiry Two train whistles, A and B each have a frequency of 392Hz. A is at rest while B is moving at 35m/s [right]. A railway worker moving at 15 m/s[left] is between the two trains. Air temp is 293 K. 14. a) What is the frequency heard by the railway worker from Train A? (3) b) What is the frequency heard by the railway worker by train B? (3) c) What is the beat frequency heard by...
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Two Train Whistles from trains
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Answers should be 3.79m/s and 3.88m/s
Thanks in advance
at rent standing nearby. between thea when the On the station ble apeeda ons that the .oving train ean take relative to you? E) 2 No stand
A railroad train is traveling at 28.0 m/s in still air. The frequency of the note...
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phons 100 9 80 60 A 40 20 20 10k 1000 100 10 Frequency Hz) a) At approximately what frequency is the human ear most sensitive? How can you tell? b) If you heard a 300-Hz tone with a sound level of 60...
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Thinking and Inquiry Two train whistles, A and B each have a frequency of 392Hz. A is at rest while B is moving at 35m/s [right]. A railway worker moving at 15 m/s[left] is between the two trains. Air temp is 293 K. 14. a) What is the frequency heard by the railway worker from Train A? (3) b) What is the frequency heard by the railway worker by train B? (3) c) What is the beat frequency heard by...
Two train whistles have identical frequencies of 1.62 x 10 Hz. When one train is at rest in the station and the other is moving nearby, a commuter standing on the station platform hears beats with a frequency of 8.00 beats/s when the whistles operate together. What are the two possible speeds that the moving train can have? m/s moving away from the station m/s moving towards the station
A train: A enters a train station with constant speed of .00 m/s while another train B leaves the train station with constant speed of 4.00 m/s. At a moment they are both at the same distance of 1 km from the train station they whistle two identical sounds of 400. Hz with acoustic power of 70.0 W each. A passenger standing on the station platform. No wind is blowing. (a) What is the frequency of the sound from A...
Two Train Whistles from trains
A and B have the same frequency of 180hz......
Answers should be 3.79m/s and 3.88m/s
Thanks in advance
at rent standing nearby. between thea when the On the station ble apeeda ons that the .oving train ean take relative to you? E) 2 No stand
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