College Physics: A Strategic Approach (4th Edition)
4th Edition
ISBN: 9780134609034
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
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Chapter 16, Problem 33P
The first formant of your vocal system can be modeled as the resonance of an open-closed tube, the closed end being your vocal cords and the open end your lips. Estimate the frequency of the first formant from the graph of Figure 16.23, and then estimate the length of the tube of which this is a resonance. Does your result seem reasonable?
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A. Calculate the tension in the string that keeps it in tune.
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Chapter 16 Solutions
College Physics: A Strategic Approach (4th Edition)
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- A dinosaur called Parasaurolophus is a dinosaur (looks like a dinosaur with a single horn) thathas a hollow horn crest on its head. The 1.5 m long hollow tub inside of this crest hadconnections to the throat, leading some paleontologists to guess that the tube was used as aresonant chamber in vocalization. If you model this system as an open-closed system, what arethe first three resonant frequencies at 85 degrees F?arrow_forwardA guitar string has a pluckable length of 42 cm. What is the length of the 5th harmonic?arrow_forwardA violin string ? = 31.6 cm long and ? = 0.65 g⁄m linear mass density is tuned to play a La4 note at 440.0 Hz. This means that the string is at its fundamental oscillation mode, that is, you will be on that note without placing a finger on it. From this information: C. If we compare the current La4 note of 440.0 Hz with the La4 note of 422.5 Hz from Handel's time, By what percentage should the tension of the violin string vary with respect to the current to tune the note to 422.5 Hz?arrow_forward
- The pan flute is a musical instrument consisting of a number of closed-end tubes of different lengths. When the musician blows over the open ends, each tube plays a different note. The longest pipe is 0.33 m long. What is the frequency of the note it plays?arrow_forwardPlease answer it within 30 minutes. I will upvote! Problem: When you blow over the edge of a pan flute pipe, a certain tone is produced. Assume that the tube is cylindrical, open at the top and closed at the bottom. Construct a mathematical model to derive the length required to produce a vocal frequency for la at 440 Hz if the note follows an axisymmetric wave. The speed of sound at room temperature is 340 m/s.arrow_forwardPlease show all the steps and the equation required in each case. arrow_forward
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