Chapter 17, Problem 058 A sound source A and a reflecting surface B move directly toward...
Chapter 17, Problem 058 A sound source A and a reflecting surface B move directly toward each other. Relative to the air, the speed of source A is 28.9 m/s, the speed of surface B is 64.3 m/s, and the speed of sound is 326 m/s. The source emits waves at frequency 1230 Hz as measured in the source frame. In the reflector frame, what are (a) the frequency and (b) the wavelength of the arriving sound waves? In the source frame, what are (c) the frequency and (d) the wavelength of the sound waves reflected back to the source?
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Chapter 17, Problem 058 A sound source A and a reflecting surface B move directly toward...
A sound source A and a reflecting surface B move directly toward each other. Relative to...
A sound source A and a reflecting surface B move directly toward each other. Relative to the air, the speed of source A is 31.3 m/s, the speed of surface B is 65.2 m/s, and the speed of sound is 326 m/s. The source emits waves at frequency 1100 Hz as measured in the source frame. In the reflector frame, what are (a) the frequency and (b) the wavelength of the arriving sound waves? In the source frame, what are...
019: A source emits sound with a frequency of 1000 Hz. An observer is moving at...
019: A source emits sound with a frequency of 1000 Hz. An observer is moving at 160 m/s toward the source, which is stationary. The speed of sound is 340 m/s. The frequency heard by the observers is:
A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with...
A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a frequency of 215 Hz . A person on the platform right next to the speaker detects the sound waves reflected off the wall and those emitted by the speaker. How fast should the platform move, vp, for the person to detect a beat frequency of 1.00 Hz ? Take the speed of sound to be 344 m/s. Please be specific in explaining what...
The sound wave source moves away from a stationary listener at 80 m/s. The speed of...
The sound wave source moves away from a stationary listener at 80 m/s. The speed of sound is 340 m/s and the frequency of sound is 200 Hz. a) Find the wavelength of sound waves between the source and the listener. b) Find the frequency heard by the listener.
A sound source emits sounds of frequency 210 Hz that travel through still air at 340...
A sound source emits sounds of frequency 210 Hz that travel through still air at 340 m/s. The listener moves at 70 m/s relative to still air toward the stationary source. What is the wavelength of the sound between the source and the listener? (not 1.286 or 264.39)
7. You are standing still on a day when there is no wind. Four different sources...
7. You are standing still on a day when there is no wind. Four different sources of sound are moving relative to you (either directly toward you or directly away from you). State whether each source is moving toward you or away from you and state how rapidly (in m/s) it is moving relative to you. The speed of sound in air is 343 m/s. Explain your answers. (a) Source 1 emits sound of frequency 125 Hz, but the sound...
If a 1.00-kHz sound source moves at a speed of 53.0 m/s toward a listener who...
If a 1.00-kHz sound source moves at a speed of 53.0 m/s toward a listener who moves at a speed of 28.0 m/s in a direction away from the source, what is the apparent frequency heard by the listener? (Use 343 m/s as the speed of sound in air.) A) 795 Hz B) 937 Hz C) 1000 Hz D) 1086 Hz E) 1279 Hz
Question 7 3.6 pts A source emits sound with a frequency of 16,246 Hz. Both it...
Question 7 3.6 pts A source emits sound with a frequency of 16,246 Hz. Both it and an observer are moving toward each other, each with a speed of 141 m/s. What frequency (in Hz) does the observer hear? Round your answer to the nearest whole number.
< 12 of 14 Constants Part A A speaker fixed to a moving platform moves toward...
< 12 of 14 Constants Part A A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a frequency of 225 Hz. A person on the platform right next to the speaker detects the sound waves reflected off the wall and those emitted by the speaker. How fast should the platform move, vp, for the person to detect a beat frequency of 6.00 Hz? Take the speed of sound to be 344 m/s. Express...
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111...
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111 w (a) Find the intensity 10.7 m from the source W/m2 (b) Find the intensity level in decibels at that distance. dB (c) At what distance would you experience the sound at the threshold of pain, 120 dB? Need Help? Read 11. -/2 points SerCP10 14 P023 My No A commuter train passes a passenger platform at a constant speed of 42.1 m/s. The...
019: A source emits sound with a frequency of 1000 Hz. An observer is moving at 160 m/s toward the source, which is stationary. The speed of sound is 340 m/s. The frequency heard by the observers is:
7. You are standing still on a day when there is no wind. Four different sources of sound are moving relative to you (either directly toward you or directly away from you). State whether each source is moving toward you or away from you and state how rapidly (in m/s) it is moving relative to you. The speed of sound in air is 343 m/s. Explain your answers. (a) Source 1 emits sound of frequency 125 Hz, but the sound...
Question 7 3.6 pts A source emits sound with a frequency of 16,246 Hz. Both it and an observer are moving toward each other, each with a speed of 141 m/s. What frequency (in Hz) does the observer hear? Round your answer to the nearest whole number.
< 12 of 14 Constants Part A A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a frequency of 225 Hz. A person on the platform right next to the speaker detects the sound waves reflected off the wall and those emitted by the speaker. How fast should the platform move, vp, for the person to detect a beat frequency of 6.00 Hz? Take the speed of sound to be 344 m/s. Express...
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111 w (a) Find the intensity 10.7 m from the source W/m2 (b) Find the intensity level in decibels at that distance. dB (c) At what distance would you experience the sound at the threshold of pain, 120 dB? Need Help? Read 11. -/2 points SerCP10 14 P023 My No A commuter train passes a passenger platform at a constant speed of 42.1 m/s. The...
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