A sound wave with a wavelength of 1.163 m was traveling in the air with an ambient temperature of 30°C when another sound wave with a frequency of 400 Hz interfered with it. What would be the result of the interacting sound waves and why? Describe and express quantitatively the specification of the effect.

A sound wave with a wavelength of 1.163 m was traveling in the air with an ambient temperature of 30°C when another sound wave with a frequency of 400 Hz interfered with it. What would be the result of the interacting sound waves and why? Describe and express quantitatively the specification of the effect.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter16: Waves

Section: Chapter Questions

Problem 42P: Your ear is capable of differentiating sounds that arrive at each ear just 0.34 ms apart, which is...

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The Weber-Fechner law describes how human beings perceive differences. Suppose, for example, that a person first hears a tone with a frequency of 400 hertz (cycles per second). He is then tested with higher tones until he can hear the difference. The ratio between these values describes how well this person can hear differences. a. Suppose the next tone he can distinguish has a frequency of 404 hertz. What is the ratio? b. According to the Weber-Fechner law, the next higher tone will be greater than 404 by the same ratio. Find this tone. c. Write the discrete-time dynamical system for this person. d. Suppose the experiment is repeated on a musician, and she manages to distinguish 400.5 hertz from 400 hertz. What is the fifth tone she can distinguish?
Moving Source vs. Moving Listener. (a) A sound source producing 1.00 kHz waves moves toward a stationary listener at one-half the speed of sound. What frequency will the listener hear? (b) Suppose instead that the source is stationary and the listener moves toward the source at one-half the speed of sound. What frequency does the listener hear? How does your answer compare to that in part (a)? Explain on physical grounds why the two answers differ.
A VOcaro0 | Ohline vo.. se Mirsal The Ri.. alió ö Lio Demo document Liveworksheets.co... chnological College Apps Social networks Tihe ocedures Useful Links► Help» This module * Participants » Sulaiman based on Chapter-11 sics 2 What is the frequency of the sound wave in the air when the temperature is 350 K and the wavelength is 0.7 m? (Use speed of sound at 0 C = 331 m/s) of Select one: а. 350 Hz estion b. 245 Hz c. 535.40 Hz Previous page Next page Chapter-12 Optics► actice Quiz Experiment-1, T-2, AY Jump to... 20-21
Direction: Write the given and formula. Show your complete and detailed solution. Calculate the frequency of a sound wave with a period of 2.27 x 10-3. After that, find the (a) period of vibrations and (2) angular frequency. A sound source producing 1.00 kHz waves moves toward a stationary listener at one-half the speed of sound. What frequency will the listener hear? A car alarm is emitting sound waves of frequency of 520 Hz. You are riding a motorcyle travalling away from the car. How fast must you be travelling if you detect a frequency of 490 Hz.
Part II. Application. Show all of your work in calculating the following variables. Include the given information with appropriate labels, unknown information, formula(s), substitutions, and correct answer with accurate units and significant figures. Helpful equations: T= 1/f v = f1 v = d/t f = v/2L 1. A wave on a guitar string has a velocity of 684m/s. The guitar string is 0.635m long. What is the fundamental frequency of the vibrating string?
Activity Proper: Activity No. 1 – Sound: Problem Solving Sound. Answer the following problem involving intensity of sound. Examples with solution: a. A 1.0 W point source emits sound waves isotropically. Assuming that the energy of the waves is conserved, find the intensity, 1.0 m from the source: Solution and Answer: Ps 4ar² 1 W W = 8 x 10-2 m2 4п(1 m)2 b. A point source emits sound waves isotropically. The intensity of the waves 2.50 m from the source is 1.91 x 10-4. Assuming that the energy of the waves is conserved, find the power of the source. Solution and Answer: m² P = (4ar²)(1) P = (4m(2.5 m)²)(1.91 × 10-4 From / = m2 P = 1.5 x 10-2 w Page 2 of 4 1. A 1.0 W point source emits sound waves isotropically. Assuming that the energy of the waves is conserved, find the intensity, 2.5 m from the source. Show your solution and answer for the intensity 2.5 m from the source.
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70. A submarine is moving toward another submarine at 10.71 m/s. It emits a 5.03-MHz ultrasound. What frequency (in MHz) would the second sub, at rest, detect? The speed of sound in water is 1482 m/s. No need to include the unit. Write your answer in whole numbers.
A speaker suspended high in the air, away from other objects, emits one spherical wave with total energy 5 J. Assume the waves travel at the speed of sound in air: 343 m/s. Draw the wave 2 seconds and 5 seconds after it was emitted. Label the total energy at each of these times. Label the energy per unit area for each of these times. I would like to know how should I approach this problem when it comes to sound waves and how do I apply total energy in this problem?
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