10th Edition

ISBN: 9780321902788

Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain

Publisher: PEARSON

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 12, Problem 34P

Ultrasound and infrasound. (a) Whale communication. Blue whales apparently communicate with each other using sound of frequency 17 Hz, which can be heard nearly 1000 km away in the ocean. What is the wavelength of such a sound in seawater, where the speed of sound is 1531 m/s? (b) Dolphin clicks. One type of sound that dolphins emit is a sharp click of wavelength 1.5 cm in the ocean. What is the frequency of such clicks? (c) Dog whistles. One brand of dog whistles claims a frequency of 25 kHz for its product. What is the wavelength of this sound? (d) Bats. While bats emit a wide variety of sounds, one type emits pulses of sound having a frequency between 39 kHz and 78 kHz. What is the range of wavelengths of this sound? (e) Sonograms. Ultrasound is used to view the interior of the body, much as x rays are utilized. For sharp imagery, the wavelength of the sound should be around one-fourth (or less) the size of the objects to be viewed. Approximately what frequency of sound is needed to produce a clear image of a tumor that is 1.0 mm across if the speed of sound in the tissue is 1550 m/s?

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Chapter 12, Problem 33P

Chapter 12, Problem 35P

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Chapter 12 Solutions

College Physics (10th Edition)

Ch. 12 - What kinds of energy are associated with waves on...Ch. 12 - Sci-fi movies sometimes show the explosion of a...Ch. 12 - Which of the characteristics of a sound wave...Ch. 12 - Energy can be transferred along a string by wave...Ch. 12 - On an episode of Mythbusters, rock singer Jaime...Ch. 12 - Prob. 6CQ Ch. 12 - Two tuning forks have identical frequencies, but...Ch. 12 - (a) Does a sound level of zero decibels mean that...Ch. 12 - Players of stringed instruments tune them by...Ch. 12 - You are standing several meters from the railroad...

Ch. 12 - TV weather forecasters often refer to Doppler...Ch. 12 - A wire under tension and vibrating in its first...Ch. 12 - A segment A of wire stretched tightly between two...Ch. 12 - A string that is 6.0 m long is tied between two...Ch. 12 - An organ pipe open at one end, but closed at the...Ch. 12 - A person listening to a siren from a stationary...Ch. 12 - A string of length 0.600 m is vibrating at 100.0...Ch. 12 - When a 15 kg mass is hung vertically from a thin,...Ch. 12 - Prob. 7MCP Ch. 12 - An organ pipe open at both ends is resonating in...Ch. 12 - Prob. 9MCP Ch. 12 - Traffic noise on Beethoven Boulevard has an...Ch. 12 - A thin, light string supports a weight W hanging...Ch. 12 - String A weighs twice as much as string B. Both...Ch. 12 - (a) Audible wavelengths. The range of audible...Ch. 12 - Prob. 2P Ch. 12 - If an earthquake wave having a wavelength of 13 km...Ch. 12 - A fisherman notices that his boat is moving up and...Ch. 12 - A steel wire is 2.00 m long and is stretched with...Ch. 12 - With what tension must a rope with length 2.50 m...Ch. 12 - One end of a horizontal rope is attached to a...Ch. 12 - Prob. 8P Ch. 12 - A certain transverse wave is described by the...Ch. 12 - Transverse waves on a string have wave speed 8.00...Ch. 12 - The equation describing a transverse wave on a...Ch. 12 - Transverse waves are traveling on a long string...Ch. 12 - Mapping the ocean floor. The ocean floor is mapped...Ch. 12 - In Figure 12.38, each pulse is traveling on a...Ch. 12 - Prob. 15P Ch. 12 - A piano tuner stretches a steel piano wire with a...Ch. 12 - A physics student suspends a 1 kg mass from a...Ch. 12 - A wire with mass 40.0 g is stretched so that its...Ch. 12 - The portion of string between the bridge and upper...Ch. 12 - Guitar string. One of the 63.5-cm-long strings of...Ch. 12 - Prob. 21P Ch. 12 - Find the fundamental frequency and the frequency...Ch. 12 - The longest pipe found in most medium-sized pipe...Ch. 12 - The fundamental frequency of a pipe that is open...Ch. 12 - The role of the mouth in sound. The production of...Ch. 12 - The end of a stopped pipe is to be cut off so that...Ch. 12 - Prob. 27P Ch. 12 - Singing in the shower! Assume that your shower is...Ch. 12 - You blow across the open mouth of an empty test...Ch. 12 - Two small speakers A and B are driven in step at...Ch. 12 - In a certain home sound system, two small speakers...Ch. 12 - Prob. 32P Ch. 12 - Human hearing. The human outer ear contains a more...Ch. 12 - Ultrasound and infrasound. (a) Whale...Ch. 12 - A 75.0 cm wire of mass 5.625 g is tied at both...Ch. 12 - A small omnidirectional stereo speaker produces...Ch. 12 - Find the intensity (in W/m2) of (a) a 55.0 dB...Ch. 12 - Find the noise level (in dB) of a sound having an...Ch. 12 - (a) By what factor must the sound intensity be...Ch. 12 - Eavesdropping! You are trying to overhear a juicy...Ch. 12 - Energy delivered to the ear. Sound is detected...Ch. 12 - (a) If the amplitude in a sound wave is tripled,...Ch. 12 - A baseball park is filled with 5000 home-team...Ch. 12 - (a) What is the sound intensity level in a car...Ch. 12 - A trumpet player is tuning his instrument by...Ch. 12 - Two tuning forks are producing sounds of...Ch. 12 - Two guitarists attempt to play the same note of...Ch. 12 - Tuning a violin. A violinist is tuning her...Ch. 12 - A railroad train is traveling at 25.0 m/s in still...Ch. 12 - Two train whistles, A and B, each have a frequency...Ch. 12 - On the planet Arrakis, a male ornithoid is flying...Ch. 12 - You are driving down the road at 15.6 m/s (35 mph)...Ch. 12 - A railroad train is traveling at 30.0 m/s in still...Ch. 12 - The siren of a fire engine that is driving...Ch. 12 - A stationary police car emits a sound of frequency...Ch. 12 - A container ship is traveling westward at a speed...Ch. 12 - While sitting in your car by the side of a country...Ch. 12 - Moving source vs. moving listener. (a) A sound...Ch. 12 - How fast (as a percentage of light speed) would a...Ch. 12 - One end of a 14.0-m-long wire having a total mass...Ch. 12 - Ultrasound in medicine. A 2.00 MHz sound wave...Ch. 12 - A very noisy chain saw operated by a tree surgeon...Ch. 12 - Tuning a cello. A cellist tunes the C-string of...Ch. 12 - A bat flies toward a wall, emitting a steady sound...Ch. 12 - The sound source of a ships sonar system operates...Ch. 12 - The range of human hearing. A young person with...Ch. 12 - A person leaning over a 125-m-deep well...Ch. 12 - Prob. 68GP Ch. 12 - A small musical toy produces a steady tone at 1000...Ch. 12 - A turntable 1.50 m in diameter rotates at 75 rpm....Ch. 12 - Musical scale. The frequency ratio of a semitone...Ch. 12 - BIO Waves on vocal cords. In the larynx, sound is...Ch. 12 - BIO Waves on vocal cords. In the larynx, sound is...Ch. 12 - BIO Waves on vocal cords. In the larynx, sound is...Ch. 12 - If the deepest structure you wish to image is 10.0...Ch. 12 - After a beam passes through 10 cm of tissue, what...Ch. 12 - Because the speed of ultrasound in bone is about...Ch. 12 - BIO Waves on vocal cords. In the larynx, sound is...Ch. 12 - For cranial ultrasound, why is it advantageous to...

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