Two audio speakers are placed on a vertical rail. Speaker A is placed at head-level while Speaker B is placeat some variable height, Ay, above Speaker A. Both speakers receive simultaneous input from a sine-wavegenerator so the speakers each produce a pure sinusoidal sound wave with a wavelength of 0.759 meters.Calculate the lowest height that Speaker B can be placed above Speaker A to produce a minimum of soundheard by person standing Ax = 4.50 meters directly in front of Speaker A.syAXImage size: S M L Max

Answered: Two audio speakers are placed on a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Similar questions

A sound wave travels through air at 20 °C. The decibel level at a distance of 19.4 m from the source is measured to be 85.2 dB. What is the dB level at a position that is 7.17 m closer? Assume the density of air is 1.20 kg/m3 and that the source produces spherical wave fronts.
A trumpet creates a sound intensity level of 9.30 101 dB at a distance of 1.00 m. (a) What is the sound intensity of a trumpet at this distance? W/m2(b) What is the sound intensity of five trumpets at this distance? W/m2(c) Find the sound intensity of five trumpets at the location of the first row of an audience, 7.00 m away, assuming, for simplicity, the sound energy propagates uniformly in all directions. W/m2(d) Calculate the decibel level of the five trumpets in the first row. dB(e) If the trumpets are being played in an outdoor auditorium, how far away, in theory, can their combined sound be heard? m(f) In practice such a sound could not be heard once the listener was 2-3 km away. Why can't the sound be heard at the distance found in part (e)? Hint: In a very quiet room the ambient sound intensity level is about 30 dB
You have an open-open pipe of adjustable length near a taut 60.0 cm, 5.0 gram guitar string which is under a tension of 300 N. You want to adjust the length of the tube so that when it produces a sound in its fundamental frequency, this sound is at the same frequency of the string’s vibration in its second harmonic. What should be the length of the pipe?
In the figure, two loudspeakers, separated by a distance of d1 = 2.63 m, are in phase. Assume the amplitudes of the sound from the speakers are approximately the same at the position of a listener, who is d2 = 4.34 m directly in front of one of the speakers. Consider the audible range for normal hearing, 20 Hz to 20 kHz. (a) What is the lowest frequency that gives the minimum signal (destructive interference) at the listener's ear? (b) What is the lowest frequency that gives the maximum signal (constructive interference) at the listener's ear? (Take the speed of sound to be 343 m/s.)
A speaker is producing spherically symmetric sounds with a total power of 88.5 W. If the speaker is located at the centre of a sphere with a radius of 2.20 m, what is the power received on a 1.70 m by 1.50 m area on the sphere? Give your answer in Watts to 2 decimal places.
A rock band creates a sound intensity level of 111 dB at a distance of 20.0 m. (a) Calculate the sound intensity. W/m2 (b) Assuming sound from the amplifiers travels as a spherical wave, what average power do the amplifiers generate?
A listener is standing on a ground that is non-absorbing. Situated at a distance from the listener are two sound sources such that: source A has a sound power of 5 W and 15 m from the listener and source B has a power of 15 W and 25 m from the listener. What is the sound pressure level the listener would hear

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