GO Figure 17-39 shows two point sources S 1 and S 2 that emit sound of wavelength λ = 2.00 m. The emissions are isotropic and in phase, and the separation between the sources is d = 16.0 m. At any point P on the x axis, the wave from S 1 and the wave from S 2 interfere. When P is very far away ( x ∞), what are (a) the phase difference between the arriving waves from S 1 and S 2 and (b) the type of interference they produce? Now move point P along the x axis toward S 1 . (c) Does the phase difference between the waves increase or decrease? At what distance x do the waves have a phase difference of (d) 0.50 λ , (e) 1.00 λ , and (f) 1.50 λ ? Figure 17-39 Problem 23.
GO Figure 17-39 shows two point sources S 1 and S 2 that emit sound of wavelength λ = 2.00 m. The emissions are isotropic and in phase, and the separation between the sources is d = 16.0 m. At any point P on the x axis, the wave from S 1 and the wave from S 2 interfere. When P is very far away ( x ∞), what are (a) the phase difference between the arriving waves from S 1 and S 2 and (b) the type of interference they produce? Now move point P along the x axis toward S 1 . (c) Does the phase difference between the waves increase or decrease? At what distance x do the waves have a phase difference of (d) 0.50 λ , (e) 1.00 λ , and (f) 1.50 λ ? Figure 17-39 Problem 23.
GO Figure 17-39 shows two point sources S1 and S2 that emit sound of wavelength λ = 2.00 m. The emissions are isotropic and in phase, and the separation between the sources is d = 16.0 m. At any point P on the x axis, the wave from S1 and the wave from S2 interfere. When P is very far away (x∞), what are (a) the phase difference between the arriving waves from S1 and S2 and (b) the type of interference they produce? Now move point P along the x axis toward S1. (c) Does the phase difference between the waves increase or decrease? At what distance x do the waves have a phase difference of (d) 0.50λ, (e) 1.00λ, and (f) 1.50λ?
Two sinusoidal waves are moving through a medium in the positive x-direction, both having amplitudes of 6.00 cm, a wavelength of 4.3 m, and a period of 6.00 s, but one has a phase shift of an angle ϕ = 0.50 rad. What is the height of the resultant wave at a time t = 3.15 s and a position x = 0.45 m ?
For a 171Hz plane traveling wave in air with a sound pressure level of 40 dB re 20 pPa, find (a)the acoustic pressure amplitude, (b) the intensity, (c)the acoustic particle speed amplitude, (d) the acoustic density amplitude, (e) the particle displacement amplitude
In a first experiment, a sinusoidal sound wave is sent through a long tube of air, transporting energy at the average rate of Pavg,1. In a second experiment, two other sound waves, identical to the first one, are to be sent simultaneously through the tube with a phase difference f of either 0, 0.2 wavelength, or 0.5 wavelength between the waves. (a) With only mental calculation, rank those choices of f according to the average rate at which the waves will transport energy, greatest first. (b) For the first choice of f, what is the average rate in terms of Pavg,1?
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