4th Edition

ISBN: 9780134988559

Author: Wolfson, Richard

Publisher: Pearson Education,

Concept explainers

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 vib…

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 th…

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Textbook Question

Chapter 14, Problem 82P

An airport neighborhood is concerned about the basing of the new F-35 jet fighter. They’ve got the data below for the sound intensity level measured at different distances from the plane as it takes off. They’d like to know the total sound power emitted by the plane. As a physics student, you’re called to help. First, convert the sound intensity levels to actual intensity. Then find a quantity which, when you plot intensity against it, should give a straight line. Make your plot, determine the best-fit line, and use its slope to report the total sound power.

Distance (m)	1000	1200	1500	2000	3000	4000
Sound intensity level (dB)	80.7	79.4	76.9	74.2	71.6	68.8

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Chapter 14, Problem 81P

Chapter 14, Problem 83PP

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Chapter 14 Solutions

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