College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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The fundamental frequency of a pipe that is open at both ends is 596 Hz. Use v=344m/s.
a) How long is this pipe?
b) If one end is now closed, find the wavelength of the new fundamental. If one end is now closed, find the frequency of the new fundamental.
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- A string of length 0.700 mm is vibrating at 135 HzHz in its second harmonic and producing sound that moves at 340 m/sm/s. What is true about the frequency and wavelength of this sound? Select all that apply. The frequency of the sound is 135 HzHz. The wavelength of the sound is 2.52 mm. The wavelength of the sound is 0.700 mm. The frequency of the sound is 486 HzHz.arrow_forwardA wave on a string is described by y ( x , t ) = (1.5 cm) sin [2π( x/0.3 m + t/0.4 s ) + 0.1 ]. This equation will be used for the next three questions. a) Find the frequency (f) and wavelength using the equation, and then solve for the wave speed. Enter your answer in units of m/s below. b) At t = 0.2s, what is the displacement of the string at x = 0.5m? Answer in cm. c) Now assume the string is fixed on both ends. How long must the string be in order to produce a second-mode standing wave? Answer in m.arrow_forwardChapter 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 + S₁arrow_forward
- Part A Find the fundamental frequency and the frequency of the first three overtones of a pipe 45.0 cmcm long, if the pipe is open at both ends. Express your answers in hertz separated by commas. Part B Find the fundamental frequency and the frequency of the first three overtones of a pipe 45.0 cmcm long, if the pipe is closed at one end. Express your answers in hertz separated by commas. Part C If the pipe is open at both ends, what is the number of the highest harmonic that may be heard by a person who can hear frequencies from 20.0 HzHz to 20.0×103Hz20.0×103Hz?arrow_forwardA guitar with strings of length L = 0.55 m has new strings put on it. The low E string has a linear density of ρ = 0.0062 kg/m and when tuned properly should produce a fundamental tone of ν = 82.41 Hz. L=0.55 m p= 0.0062 kg/m A: What is the proper tension the string should be under, in Newtons? B: If the string was mistakenly tuned to high E (ν = 330 Hz) what would the tension be, in Newtons?arrow_forwardPipe A is 2 m long and open at both ends. Pipe B is open at one end and closed at the other. Determine the length of pipe B so that it has the same fundamental frequency as A.arrow_forward
- Pipe A is 2.6 m long and open at both ends. Pipe B is open at one end and closed at the other. Determine the length of pipe B so that it has the same fundamental frequency as A.arrow_forwardQUESTION 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?arrow_forwardWhat mathematical relationship exists between the wave speed and and the tension of the medium according to the POWER trendline equation from the graph? Be specific with the answer (i.e., describe the full mathematica proportionality between the two variables) Feel free to use the graph. Table: Frequency (Hz) Density (kg/m) Tension (N) Speed (cm/s) Wavelength (cm) 0.75 1.0 2.0 141.4 188.53 0.75 1.0 2.5 158.1 210.8 0.75 1.0 3.0 173.2 230.93 0.75 1.0 3.5 187.1 249.47 0.75 1.0 4.0 200 266.67arrow_forward
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