In the 2022 series Wednesday, there is a scenein which Wednesdaysings "a note only dogs can hear."This note breaks agirl's glasses and also breaks a glass bell jar. To break glass using sound, the pitch (frequency) of the sound needs to match thenatural resonant frequency of the glass. For the glasses, the resonance works its way around the circumference of the glasses. Because the resonating length closes on itself (the two ends of the resonating lengthmeet), the boundary conditions for this must be symmetric. The bell jar, on the other hand, resonates down its length, so for it to crack, it needs asymmetric boundary conditions (think of it almost like a capped pipe). The glasses have a circumference of 14cmand the bell jar has a resonating length of21cm. Both are made of the same kind of glass, so the speed of sound is the same in both of them (v=3000ms). 1.The note that Wednesday sings activates the third harmonic in the glasses. What is the frequency of this harmonic? 2.The same note also cracks the bell jar. Which harmonic is activated by this note in the bell jar? 3.If Wednesday wanted. o activate the first harmonic in the glasses, what frequency wouldshe need? Would this also potentially crack the bell jar? show work please!!!!
In the 2022 series Wednesday, there is a scenein which Wednesdaysings "a note only dogs can hear."This note breaks agirl's glasses and also breaks a glass bell jar. To break glass using sound, the pitch (frequency) of the sound needs to match thenatural resonant frequency of the glass. For the glasses, the resonance works its way around the circumference of the glasses. Because the resonating length closes on itself (the two ends of the resonating lengthmeet), the boundary conditions for this must be symmetric. The bell jar, on the other hand, resonates down its length, so for it to crack, it needs asymmetric boundary conditions (think of it almost like a capped pipe). The glasses have a circumference of 14cmand the bell jar has a resonating length of21cm. Both are made of the same kind of glass, so the speed of sound is the same in both of them (v=3000ms). 1.The note that Wednesday sings activates the third harmonic in the glasses. What is the frequency of this harmonic? 2.The same note also cracks the bell jar. Which harmonic is activated by this note in the bell jar? 3.If Wednesday wanted. o activate the first harmonic in the glasses, what frequency wouldshe need? Would this also potentially crack the bell jar? show work please!!!!
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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Concept explainers
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
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Transcribed Image Text:In the 2022 series Wednesday, there is a scenein which Wednesdaysings "a note only dogs can hear." This note breaks agirl's glasses and also breaks a glass bell jar. To break glass using sound, the pitch (frequency) of the sound needs to match
thenatural resonant frequency of the glass. For the glasses, the resonance works its way around the circumference of the glasses. Because the resonating length closes on itself (the two ends of the resonating lengthmeet), the boundary conditions for
this must be symmetric. The bell jar, on the other hand, resonates down its length, so for it to crack, it needs asymmetric boundary conditions (think of it almost like a capped pipe). The glasses have a circumference of 14cmand the bell jar has a
resonating length of21cm. Both are made of the same kind of glass, so the speed of sound is the same in both of them (v=3000ms).
1.The note that Wednesday sings activates the third harmonic in the glasses. What is the frequency of this harmonic?
2.The same note also cracks the bell jar. Which harmonic is activated by this note in the bell jar?
3.If Wednesday wanted to activate the first harmonic in the glasses, what frequency wouldshe need? Would this also potentially crack the bell jar?
show work please!!!!
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