You create a standing wave on a string as shown in the image below. What is the wavelength (in meters) for which n=8 (which is the same as the number of anti-nodes A) if the length of the string L=3.71m? A n = 1 N N A N n = 2 N N A A A N n = 3 N

0.0058 kg/m is fixed at both ends. A 5.0-kg mass is hung from A string with a linear mass density of the string, as shown. If a pulse is sent along section A, what is the wave speed in section A and the wave speed in section B? %D B. A FA 35° 5 kg Image Description VA m/s VB = m/s B.

Chapter 17, Problem 020 The figure shows four isotropic point sources of sound that are uniformly spaced on an x axis. The sources emit sound at the same wavelength and same amplitude sm, and they emit in phase. A point P is shown on the x axis. Assume that as the sound waves travel to P, the decrease in their amplitude is negligible. What multiple of sm is the amplitude of the net wave at P if distance d in the figure is (a)1A, (b)2, and (c)4/? (a) Number (b) Number (c) Number Units Units Units S₁ Sa Sa + S₁

The tube has a length of 29 cm. What is the wavelength of the standing wave inside the open -at- one-end tube? Give your answer in cm to the correct number of significant figures.

You create a standing wave on a string as shown in the image below.  What is the wavelength (in meters) for which n=4 (which is the same as the number of anti-nodes A) if the length of the string L=1.06m?

Chapter 35, Problem 029 Two waves of the same frequency have amplitudes 0.843 and 2.41. They interfere at a point where their phase difference is 79.0°. What is the resultant amplitude? Number Units Use correct number of significant digits; the tolerance is +/-2%

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QUESTION 5 A transverse wave completes 12 full oscillations in two seconds. The wave moves at 31.2 m/s. Find the distance between two adjacent crests on the wave (in m). QUESTION 6 The linear density of a guitar string is 8.0 x 104 kg/m. A wave on the string has a frequency of 400 Hz and a wavelength of 60 cm. What is the tension in the string? QUESTION 7 The mathematical expression of a wave is given by y = 4.2 m Sin ( 1.2 rad/m x – 9.6 rad/s t). What is the speed of the wave (in m/s)? QUESTION 8 What is the sound intensity (in µW/m2) at 1.86 m from a 4 mW loudspeaker emitting sound uniformly in all directions?

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