Two small loudspeakers emit sound waves of different frequencies equally in all directions. Speaker A has an output of 1.30 mW, and speaker B has an output of 2.00 mW.
Two speakers A and B are represented as points which serve as the centers of concentric circles representing sound waves emanating from the speakers. The concentric circles about speaker A are spaced more closely together than the concentric circles about speaker B. The points lie along a horizontal line, and speaker A is 5.00 m to the left of speaker B. A vertical line is drawn that intersects the horizontal line at a distance of 3.00 m from the left speaker and 2.00 m from the right speaker. Point C lies along this vertical line at a distance of 4.00 m above the point of intersection.
(a) Determine the sound level (in decibels) at point C
in the figure if only speaker A emits sound. (Enter your
answer to at least one decimal place.)
dB
(b) Determine the sound level (in decibels) at point C in
the figure if only speaker B emits sound. (Enter your
answer to at least one decimal place.)
dB
(c) Determine the sound level (in decibels) at point C in
the figure if both speakers emit sound. (Enter your answer to at
least the nearest dB.)
dB
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Two small loudspeakers emit sound waves of different frequencies equally in all directions. Speaker A has...
32. Two loudspeakers, A and B , are driven by the same amplifier and emit sinusoidal waves in phase. Speaker B is 2.00 m to the right of speaker A. Consider point Q along the extension of the line connecting the speakers, 1.00 m to the right of speaker B. Both speak- ers emit sound waves that travel directly from the speaker to point Q. (see figure) (a) What is the lowest frequency for which constructive interference occurs at point...
Two loudspeakers, labeled A and B, emnit sound waves in every direction. Both speakers emit sound with the same wavelength, and they are in phase (they emit peaks of the sound wave at the same time). The location labeled C is a location of constructive interference, and the location labeled D is a location of destructive interference. The distances from the loudspeakers to the locations are as indicated. (Picture may not be to scale!!) (a) What is the wavelength of...
Two in-phase loudspeakers, which emit sound in all directions, are sitting side by side. One of them is moved sideways by 2.0 m, then forward by 8.0 m. Afterward, constructive interference is observed 1/4 1/2, and 3/4 the distance between the speakers along the line that joins them, and at no other positions along this line. What is the maximum possible wavelength of the sound waves?
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Two small loudspeakers emit pure sinusoidal waves with frequency-independent amplitude that are in phase. a ) At the frequencies 0.63 kHz, 1.91 kHz, and 3.19 kHz we have constructive interference at point P. b) At the frequencies 1.27 kHz, 2.55 kHz, and 3.82 kHz the sound at point P is very soft. c) At the frequencies 1.27 kHz, 2.55 kHz, and 3.82 kHz the sound at point P is loud. d) The intensity of the sound at point P does...
Question 27 7.0 m Two loudspeakers in a 20°C room emit 686 Hz sound waves which travel at 343 m/s. These two speakers are wired oppositely as in ILL and emit equal amplitude sound waves. Explain how you know that at the point indicated that the interference is maximally constructive, perfectly destructive, or 5.0 m 636 1,25 84 1.25 m 686 Question 27 7.0 m Two loudspeakers in a 20°C room emit 686 Hz sound waves which travel at 343...
Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers are 22cm apart. The sound intensity decreases as the distance between the speakers is increased, reaching zero at a separation of 50cm . If the distance between the speakers continues to increase, at what separation will the sound intensity again be a maximum?
Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers are 15 cm apart. The sound intensity decreases as the distance between the speakers is increased, reaching zero at a separation of 59 cm.Part AWhat is the wavelength of the sound?Part BIf the distance between the speakers continues to increase, at what separation will the sound intensity again be a maximum?
Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers are 42 cm apart. The sound intensity decreases as the distance between the speakers is increased, reaching zero at a separation of 49 cm . What is the wavelength of the sound? If the distance between the speakers continues to increase, at what separation will the sound intensity again be a maximum?
Two loudspeakers in a 20 ?C room emit 660 Hz sound waves along the x -axis. Part A What is the smallest distance between the speakers for which the interference of the sound waves is destructive?