Physics: Principles with Applications
7th Edition
ISBN: 9780321625922
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
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Chapter 12, Problem 5P
An ocean fishing boat is drifting just above a school of tuna on a foggy day. Without warning, an engine backfire occurs on another boat 1.55 km away (Fig. 12-33).How much time elapses before the backfire is heard (a) by the fish, and (b) by the fishermen?
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(II) An ocean fishing boat is drifting just above a school of
tuna on a foggy day. Without warning, an engine backfire
occurs on another boat 1.55 km away (Fig. 12–33). How
much time elapses
before the backfire is
heard (a) by the fish,
and (b) by the
fishermen?
(b)
_1.55 km
(a)
FIGURE 12-33
Problem 5.
Children sometimes play with a homemade “telephone” byattaching a string to the bottoms of two paper cups. Whenthe string is stretched and a child speaks into one cup, thesound can be heard at the other cup (Fig. 12–29). Explainclearly how the sound wave travels from one cup to the other.
(III) You look directly overhead and see a plane exactly
1.45 km above the ground flying faster than the speed of
sound. By the time you hear the sonic boom, the plane has
traveled a horizontal distance of 2.0 km. See Fig. 12–38.
Determine (a) the angle of the shock cone, 0, and (b) the
speed of the plane and its Mach number. Assume the speed
of sound is 330 m/s.
FIGURE 12-38
Problem 69.
Chapter 12 Solutions
Physics: Principles with Applications
Ch. 12 - Prob. 1OQCh. 12 - Prob. 1QCh. 12 - Prob. 2QCh. 12 - Prob. 3QCh. 12 - When a sound wave passes from air into water, do...Ch. 12 - What evidence can you give that the speed of sound...Ch. 12 - Prob. 6QCh. 12 - How will the air temperature in a room affect the...Ch. 12 - Prob. 8QCh. 12 - Prob. 9Q
Ch. 12 - 10.A noisy truck approaches you from behind a...Ch. 12 - Prob. 11QCh. 12 - Prob. 12QCh. 12 - Traditional methods of protecting the hearing of...Ch. 12 - 14- Consider the two waves shown in Fig....Ch. 12 - Is there a Doppler shift if the source and...Ch. 12 - Prob. 16QCh. 12 - Prob. 17QCh. 12 - Prob. 1MCQCh. 12 - Prob. 2MCQCh. 12 - Prob. 3MCQCh. 12 - Prob. 4MCQCh. 12 - Prob. 5MCQCh. 12 - Prob. 6MCQCh. 12 - Prob. 7MCQCh. 12 - Prob. 8MCQCh. 12 - Prob. 9MCQCh. 12 - Prob. 10MCQCh. 12 - Prob. 11MCQCh. 12 - Prob. 12MCQCh. 12 - Prob. 13MCQCh. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - (a) Calculate the wavelengths in air at 20°C for...Ch. 12 - Prob. 4PCh. 12 - An ocean fishing boat is drifting just above a...Ch. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - What is the intensity of a sound at the pain level...Ch. 12 - What is the sound level of a sound whose intensity...Ch. 12 - Prob. 10PCh. 12 - Prob. 11PCh. 12 - Prob. 12PCh. 12 - One CD player is said to have a signal-to-noise...Ch. 12 - Prob. 14PCh. 12 - At a rock concert, a dB meter registered 130 dB...Ch. 12 - Prob. 16PCh. 12 - If the amplitude of a sound wave is made 3.5 times...Ch. 12 - Prob. 18PCh. 12 - Prob. 19PCh. 12 - Prob. 20PCh. 12 - Prob. 21PCh. 12 - Prob. 22PCh. 12 - Prob. 23PCh. 12 - Prob. 24PCh. 12 - Prob. 25PCh. 12 - Prob. 26PCh. 12 - The A string on a violin has a fundamental...Ch. 12 - Prob. 28PCh. 12 - (a) What resonant frequency would you expect from...Ch. 12 - If you were to build a pipe organ with open-tube...Ch. 12 - A tight guitar string has a frequency of 540 Hz as...Ch. 12 - Prob. 32PCh. 12 - 33. (II) An unfingered guitar string is 0.68 m...Ch. 12 - Prob. 34PCh. 12 - 35. (II) An organ is in tune at 22.0°C. By what...Ch. 12 - How far from the mouthpiece of the flute in...Ch. 12 - (a) At T= 22°C. how long must an open organ pipe...Ch. 12 - A particular organpipe can resonate at 264 Hz, 440...Ch. 12 - Prob. 39PCh. 12 - Prob. 40PCh. 12 - Prob. 41PCh. 12 - Prob. 42PCh. 12 - Prob. 43PCh. 12 - The human ear canal is approximately 2.5 cm long....Ch. 12 - Prob. 45PCh. 12 - Prob. 46PCh. 12 - A certain dog whistle operates at 23.5 kHz. while...Ch. 12 - Prob. 48PCh. 12 - A guitar string produces 3 beats/s when sounded...Ch. 12 - Prob. 50PCh. 12 - Prob. 51PCh. 12 - Prob. 52PCh. 12 - Prob. 53PCh. 12 - Prob. 54PCh. 12 - Prob. 55PCh. 12 - Prob. 56PCh. 12 - Prob. 57PCh. 12 - Prob. 58PCh. 12 - As a bat flies toward a wall at a speed of 6.0...Ch. 12 - Prob. 60PCh. 12 - Prob. 61PCh. 12 - Prob. 62PCh. 12 - Prob. 63PCh. 12 - Prob. 64PCh. 12 - Prob. 65PCh. 12 - Prob. 66PCh. 12 - Prob. 67PCh. 12 - Prob. 68PCh. 12 - Prob. 69PCh. 12 - Prob. 70PCh. 12 - Prob. 71GPCh. 12 - Prob. 72GPCh. 12 - Prob. 73GPCh. 12 - Prob. 74GPCh. 12 - Prob. 75GPCh. 12 - Prob. 76GPCh. 12 - Prob. 77GPCh. 12 - Prob. 78GPCh. 12 - Prob. 79GPCh. 12 - Prob. 80GPCh. 12 - Prob. 81GPCh. 12 - Prob. 82GPCh. 12 - Prob. 83GPCh. 12 - Prob. 84GPCh. 12 - Prob. 85GPCh. 12 - Prob. 86GPCh. 12 - Prob. 87GPCh. 12 - A bat flies toward a moth at speed 7.8 m/s while...Ch. 12 - Prob. 89GPCh. 12 - Two loudspeakers face each other at opposite ends...Ch. 12 - A sound-insulating door reduces the sound level by...Ch. 12 - Prob. 92GPCh. 12 - Prob. 93GPCh. 12 - Prob. 94GPCh. 12 - Prob. 95GPCh. 12 - Prob. 96GP
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