College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Chapter 12, Problem 57P
While sitting in your car by the side of a country road, you see your friend, who happens to have an identical car with an identical horn, approaching you. You blow your horn, which has a frequency of 260 Hz; your friend begins to blow his horn as well, and you hear a beat frequency of 6.0 Hz. How fast is your friend approaching you?
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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. 6CQCh. 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. 7MCPCh. 12 - An organ pipe open at both ends is resonating in...Ch. 12 - Prob. 9MCPCh. 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. 2PCh. 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. 8PCh. 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. 15PCh. 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. 21PCh. 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. 27PCh. 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. 32PCh. 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. 68GPCh. 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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