•49 ILW A nylon guitar string has a linear density of 7.20 g/m and is under a tension of 150 N. The fixed supports are distance D = 90.0 cm apart. The string is oscillating in the standing wave pat- -D- Figure 16-39 Problem 49. tern shown in Fig. 16-39. Calculate the (a) speed, (b) wavelength, and (c) frequency of the traveling waves whose superposition gives this standing wave.

•49 ILW A nylon guitar string has a linear density of 7.20 g/m and is under a tension of 150 N. The fixed supports are distance D = 90.0 cm apart. The string is oscillating in the standing wave pat- -D- Figure 16-39 Problem 49. tern shown in Fig. 16-39. Calculate the (a) speed, (b) wavelength, and (c) frequency of the traveling waves whose superposition gives this standing wave.

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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•19 Go Figure 17-35 shows two isotropic point sources of sound, S, Figure 17-35 Problems 19 and 105. and S2. The sources emit waves in phase at wavelength 0.50 m; they are separated by D = 1.75 m. If we move a sound detector along a large circle centered at the midpoint between the sources, at how many points do waves arrive at the detector (a) exactly in phase and (b) ex- actly out of phase?
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See attached image. Determine the waves: a) amplitude b)wavelength c) frequency d) speed of propagation e) direction of propogation
•35 SSM Two sinusoidal waves of the same frequency travel in the same direction along a string. If yml = 3.0 cm, ym2 = 4.0 cm, = 0, and d, = m2 rad, what is the amplitude of the resultant wave?
•10 The equation of a transverse wave traveling along a very long string is y = 6.0 sin(0.020 7x + 4.0mt), where x and y are ex- pressed in centimeters and t is in seconds. Determine (a) the ampli- tude, (b) the wavelength, (c) the frequency, (d) the speed, (e) the direction of propagation of the wave, and (f) the maximum trans- verse speed of a particle in the string. (g) What is the transverse displacement at x = 3.5 cm when t = 0.26 s?
95 A continuous traveling wave with amplitude A is incident on a boundary. The continuous reflection, with a smaller amplitude B, travels back through the incoming wave. The resulting interference pattern is displayed in Fig. 16-51. The standing wave ratio is defined to be A + B А - В SWR = The reflection coefficient R is the ratio of the power of the reflected wave to the Amax Amin Anax power of the incoming wave and is thus proportional to the ratio (BIA). What is the SWR for (a) total reflection and (b) no reflection? (c) For SWR = 1.50, what is R expressed as a percentage? Figure 16-51 Problem 95.
66 Figure 16-44 shows the dis- placement y versus time t of the point on a string at x= 0, as a wave passes through that point. The scale of the y axis is set by y, = 6.0 mm. The wave is given by y(x, t) = ym sin(kx – wt + 4). What is 4? (Caution: A calculator does not always give the proper inverse trig function, so check your answer by substituting it and an assumed value of w into y(x, 1) and then plotting the function.) y (mm) Figure 16-44 Problem 66.
•30 The source of a sound wave has a power of 1.00 µW. If it is a point source, (a) what is the intensity 3.00 m away and (b) what is the sound level in decibels at that distance?