We have two speakers on the x-axis and they are positioned such that one is behind the other. Both speakers emit a wave with the same frequency and amplitude, along the x-axis, which we denote as f and a. The sound intensity is maximum, with amplitude 2a, when speaker 2 is 10 cm behind speaker 1. The intensity decreases as speaker 2 is moved forward and first reaches a minimum when it is 20 cm in front of speaker 1. What is: 1. The frequency of the sound? Assume air temperature is 20°C. 2. The phase difference between the two loudspeakers? 3. The amplitude of the sound (as a multiple of a) if the speakers overlap? Yes, I know it's physically impossible but use vour imagination

We have two speakers on the x-axis and they are positioned such that one is behind the other. Both speakers emit a wave with the same frequency and amplitude, along the x-axis, which we denote as f and a. The sound intensity is maximum, with amplitude 2a, when speaker 2 is 10 cm behind speaker 1. The intensity decreases as speaker 2 is moved forward and first reaches a minimum when it is 20 cm in front of speaker 1. What is: 1. The frequency of the sound? Assume air temperature is 20°C. 2. The phase difference between the two loudspeakers? 3. The amplitude of the sound (as a multiple of a) if the speakers overlap? Yes, I know it's physically impossible but use vour imagination

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)...

See similar textbooks

Similar questions

3. Two loudspeakers emit sound waves along the r-axis. A listener in front of both speakers hears a maximum sound intensity when speaker 2 is at the origin and speaker 1 is at r = 0.50 m. If speaker 1 is slowly moved forward, the sound intensity decrcases and then increases, reaching another maximum when speaker 1 is at x = 0.90 m. a. What is the frequency of the sound? Assume vsound = 340 m/s. b. What is the phase difference between the spcakers?
In an acoustics lab you have a 60 m long pipe that contains very cold air, in fact T = – 46 °C. Suppose that using a speaker you cause a sinusoidal wave of sound with wavelength 1.5 m to travel down the pipe, going from one end of the pipe to the other. ii) What is the frequency of the sound in the pipe? a) 1.5×102 Hz b) 2.0×102 Hz c) 2.5×102 Hz d) 3.0×102 Hz e) 3.5×102 Hz
ZOOM + 1) Suppose we have an air column 80cm long with one open end and one closed end. (a) Find (i.e. derive) an expression for the resonant frequencies of the air column in terms of the length L of the air column, the speed of sound v, and the harmonic number n. Don't simply write the equation – show me how you obtain it by sketching several resonant standing waves. (b) What are the three lowest resonant frequencies in this air column (numerical values)? Take the speed of sound in air to be 343 m/s.
W S # JO E X 3 5. By how many decibels do you reduce the sound intensity level due to a source of sound if you quadruple your distance from it? Assume that the waves expand spherically. X 40 dB 4 C 25 868 R % 5 FS DEC V T tv 6 MacBook Air B F6 H & 7 F7 8 N انات 9 M K MOSISO zoom P CU command 1 option
Please answer ALL questions correctly. Thank you.
A.) I have an open-closed tube with a length of 0.7 m and a radius of 0.5 cm. What is the wavelength of mode number 2, in m? B.) I have an open-open tube with a length of 0.7 m and a radius of 1.6 cm. What is the frequency of mode number 1, in Hz? The speed of sound is 343 m/
Please help for this question!
Two loudspeakers emit sound waves of the same frequency along the x-axis. The amplitude of each wave is a. The sound intensity is minimum where speaker 2 is 10cm behind speaker 1. The intensity increases as speaker 2 is moved forward and first reaches minimum, with amplitude 2a, when it is 30cm in front of speaker 1. a. what is the wavelength of the sound
An audio system is emitting a sound at a frequency of 676 Hz through two speakers separated by a distance d = 0.620 m. What's the shortest distance for a person to hear maximum intensity if he was facing the speaker on the right (see picture).
1. The low-frequency speaker of a stereo set has a surface area of 0.05 m and produces 1 W of acoustical power. (a) What is the intensity at the speaker? (b) If the speaker projects sound uniformly in all directions, at what distance from the speaker is the W intensity 0.26 -? m2 Hint: If the sound projects uniformly in all directions, after traveling a distance r it is uniformly distributed over a sphere of area r. What is the surface area of a sphere of radius r? W (a) Intensity: m? (b) Distance (radius), r: m
18. A sound wave s(r, t) = sm Cos(ka – wt +o) travels at 343 m/s through air in a long horizontal tube. At one instant, air molecule A at r = 2.00 m is at its maximum positive displacement of 6.0 nm and air molecule B at r = a positive displacement of 1.5 nm. All the molecules between A and B arc at intermediate displacements. What is the 2.05 m is at frequency of the wave? (1) 1400 Hz (2) 1300 Hz (3) 1200 Hz (4) 1100 Hz (5) 1000 Hz