Macmillan LearningTwo identical speakers, labeled Speaker 1 and Speaker 2, areplaying a tone with a frequency of 155 Hz, in phase. Thecenters of the speakers are located 6.00 m apart. Fiveobservers are standing on a line that is 6.00 m in front of thespeakers, as shown in the figure. Each observer is separatedby 1.00 m and Sue is directly in front of speaker 1. The speedof sound is 343 m/s for this problem.Speaker 1Determine which observer or observers willexperience constructive interference from the soundemitted by the speakers.SueTomCalBobPam6.00 mSueTomCalPamBob6.00 mSpeaker 2

Step 1: Step 2: Step 3: Step 4: Given step-by-step solution. if any clarification is required do…

Answered: Macmillan Learning Two identical…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter17: Sound

Section: Chapter Questions

Problem 55P: During a 4th of July celebration, an M80 firework explodes on the ground, producing a bright flash...

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Sound is more effectively transmitted into a stethoscope by direct contact rather than through the air, and it is further intensified by being concentrated on the smaller area of the eardrum. It is reasonable to assume that sound is transmitted into a stethoscope 100 times as effectively compared with transmission though the air. What, then, is the gain in decibels produced by a stethoscope that has a sound gathering area of 15.0 cm2, and concentrates the sound onto two eardrums with a total area of 0.900 cm2 with an efficiency of 40.0% ?
A 21.9 Hz oscillator is connected to two identical speakers located at a distance d = 10.2 m from each other, as shown in the figure. Paul holds a device that measures sound intensity as he walks from speaker s, to speaker s,. Location P on the figure indicates the location of minimum intensity between s, and s, that is furthest away from s,. How far is location P from speaker s,? The speed of sound is 343 m/s. m S2 d S1
There are two loudspeakers 3.0 m apart and both are playing a 686 Hz tone in phase.The speed of sound is 343 m/s. A person is standing directly in front of one of thetwo loudspeakers as shown in the figure and can only move along a line AB.a) Write the inherent phase difference.b) Write the pathlength difference in terms of x, which is a distance from thespeaker 1 to the person.c) At what distances x (calculate three values corresponding to integersm=0,1,2) from the speaker 1 do you hear a minimum sound intensity?
Two identical loudspeakers placed 3.00 m apart are driven by the same oscillator (as shown). A listener is originally at point O, located 8.00 m from the center of the line connecting the two speakers. The listener then moves to point P, which is a perpendicular distance 0.350 m from O, and she experiences the first minimum in sound intensity. What is the frequency ofthe oscillator?
Two loudspeakers, A and B (Fig. ), are driven by thesame amplifier and emit sinusoidal waves in phase. Speaker B is 2.00 mto the right of speaker A. Consider point Q along the extension ofthe line connecting the speakers, 1.00 m to the right of speaker B.Both speakers emit sound waves that travel directly from the speaker topoint Q. What is the lowest frequency for which (a) constructive interferenceoccurs at point Q; (b) destructive interference occurs at point Q?
A sonar device emits waves of frequency 40 kHz. The wavelength of the wave in water is 0.032 m. Suppose thatthe device is fixed to the bottom of the ship. It emits a signal and the echo from the ocean bed returns 0.8 secondlater. What is the depth of the ocean at that point?
Diego is standing 7.0 m North of a pair of adjacent speakers which are facing him. The speakers are coherently producing a frequency of 686 Hz. Diego's friend, Shalanda, is going to move one of the speakers directly East. How far away from the sta- tionary speaker should Shaland move the other one such that the sound cancels out where Diego is standing? Find the mini- mum amount it should be moved. Hint: what is the condition for coherent waves to cancel?
wo in-phase loudspeakers that emit sound with the same frequency are placed along a wall and are separated by a distance of 8.00 m. A person is standing 12.0 m away from the wall, equidistant from the loudspeakers. When the person moves 3.00 m parallel to the wall, she experiences destructive interference for the second time. What is the frequency of the sound? The speed of sound in air is 343 m/s. Group of answer choices 422 Hz 562 Hz 278 Hz 452 Hz 694 Hz
Loudspeakers A and B are vibrating in phase and are playing the same tone, which has a frequency of 400 Hz. They are set up as in the figure, and point C is located as shown there. However, the distance between the speakers and the distance between speaker B and point C have the same value d. The speed of sound is 343 m/s. What is the smallest value of d, such that constructive interference occurs at point C? 90
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Two speakers that are emitting sound with the same frequency in phase with each other and are separated by 3.00 m. Assume 1.50 m velocity of sound is 343 m/s a. If a person is standing 4.50 m down a line that perpendicularly 4.5 m 1.50 m bisects these speakers (as shown), will he hear constructive or destructive interference if the frequency of sound is 457 Hz? b. At this frequency how many wave lengths can fit in this distance from the speaker to him? c. If he walks 0.598 m vertically (direction shown in the picture as arrow) would he hear constructive or destructive interference? (show me) d. If he continues walking that direction, and moves 0.624 m further (1.222 m total) what does he hear now, constructive or destructive? (show me)
Two loud speakers are 3m apart. A person is listening to a single pitch at 680Hz. Theperson is along the back wall, which is reasonably far, what are two directions from the center ofthe speakers where the person would expect to have the music loud? Repeat for two directionsthat are quiet.The person is now standing at the location that is 4m directly in front of one of thespeakers. Determine whether that position is loud, quiet or somewhere between the twoextremes. Explain. Use a diagram to help. [Note: Do not assume the person is far away.Comment on why that makes a difference.]

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