EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Chapter 17, Problem 97GP
Snorkelers breathe through short tubular “snorkels” while swimming under water very near the surface. One end of the snorkel attaches to the snorkeler’s mouth while the other end protrudes above the water’s surface. Unfortunately, snorkels cannot support breathing to any great depth: it is said that a typical snorkeler below a water depth of only about 30 cm cannot draw a breath through a snorkel. Based on this claim, what is the approximate fractional change in a typical person’s lung volume when drawing a breath? Assume, in equilibrium, the air pressure in a snorkeler’s lungs matches that of the surrounding water pressure.
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Snorkelers breathe through short tubular "snorkels"
while swimming under water very near the surface.
One end of the snorkel attaches to the snorkeler's
mouth while the other end protrudes above the
water's surface. Unfortunately, snorkels cannot
support breathing to any great depth: it is said that
a typical snorkeler below a water depth of only
about 30 cm cannot draw a breath through a
snorkel.
Part A
Based on this claim, what is the approximate fractional change in a typical person's lung volume when drawing a breath?
Assume,
in equilibrium, the air pressure in a snorkeler's lungs matches that of the surrounding water pressure.
Express your answer using two significant figures.
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%
Vrelaxed
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Scuba divers are warned that if they must make a rapid ascent, they should exhale on the way up. If a diver rapidly ascends to the surface with lungs full of air, his lungs could be damaged. Explain why this is so.
Long Snorkel: Inhalation of a breath occurs when the muscles surrounding the human lungs move to increase the volume of the lungs, thereby reducing the air pressure in the lungs. The difference between the reduced pressure in the lungs and outside atmospheric pressure causes a flow of air into the lungs. The maximum reduction in air pressure that muscles of the chest can produce in the lungs against the surrounding air pressure on the chest and body is about 3390 Pa. Consider the longest snorkel that a human can operate. The minimum pressure difference needed to take in a breath is about 257 Pa. Find the depth h that a person could swim to and still breathe with this snorkel.
Chapter 17 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
Ch. 17.2 - Prob. 1AECh. 17.4 - Prob. 1BECh. 17.5 - How much space would you allow between the...Ch. 17.7 - CHAPTER-OPENING QUESTIONGuess now! A hot-air...Ch. 17.7 - An ideal gas is contained in a steel sphere at...Ch. 17.8 - What is the volume of 1.00 mol of ideal gas at 546...Ch. 17.8 - At 20C, would there be (a) more, (b) less, or (c)...Ch. 17 - Prob. 1QCh. 17 - Name several properties of materials that could be...Ch. 17 - Which is larger, 1 C or 1 F?
Ch. 17 - If system A is in equilibrium with system B, but B...Ch. 17 - Suppose system C is not in equilibrium with system...Ch. 17 - In the relation = 0 T, should 0 be the initial...Ch. 17 - A flat bimetallic strip consists of a strip of...Ch. 17 - Long steam pipes that are fixed at the ends often...Ch. 17 - Prob. 9QCh. 17 - Prob. 10QCh. 17 - Prob. 11QCh. 17 - Prob. 12QCh. 17 - The units for the coefficients of expansion are...Ch. 17 - Prob. 14QCh. 17 - The principal virtue of Pyrex glass is that its...Ch. 17 - Prob. 16QCh. 17 - Freezing a can of soda will cause its bottom and...Ch. 17 - Why might you expect an alcohol-in-glass...Ch. 17 - Prob. 19QCh. 17 - Prob. 20QCh. 17 - From a practical point of view, does it really...Ch. 17 - Prob. 1MCQCh. 17 - Prob. 2MCQCh. 17 - Prob. 3MCQCh. 17 - Prob. 4MCQCh. 17 - Prob. 5MCQCh. 17 - Prob. 6MCQCh. 17 - Prob. 7MCQCh. 17 - Prob. 8MCQCh. 17 - Prob. 9MCQCh. 17 - Prob. 10MCQCh. 17 - Prob. 11MCQCh. 17 - Prob. 12MCQCh. 17 - Prob. 1PCh. 17 - Prob. 2PCh. 17 - (a) Room temperature is often taken to be 68F....Ch. 17 - Among the highest and lowest natural air...Ch. 17 - Prob. 5PCh. 17 - Prob. 6PCh. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - The Eiffel Tower (Fig. 1719) is built of wrought...Ch. 17 - Prob. 10PCh. 17 - Prob. 11PCh. 17 - Prob. 12PCh. 17 - Prob. 13PCh. 17 - At a given latitude, ocean water in the so-called...Ch. 17 - Prob. 15PCh. 17 - Prob. 16PCh. 17 - Prob. 17PCh. 17 - Prob. 18PCh. 17 - (II) It is observed that 55.50 mL of water at 20C...Ch. 17 - Prob. 20PCh. 17 - (II) If a fluid is contained in a long narrow...Ch. 17 - Prob. 22PCh. 17 - (II) Wine bottles are never completely filled: a...Ch. 17 - Prob. 24PCh. 17 - Prob. 25PCh. 17 - Prob. 26PCh. 17 - Prob. 27PCh. 17 - Prob. 28PCh. 17 - (III) A barrel of diameter 134.122 cm at 20C is to...Ch. 17 - Prob. 30PCh. 17 - (I) Absolute zero is what temperature on the...Ch. 17 - Prob. 32PCh. 17 - Prob. 33PCh. 17 - Prob. 34PCh. 17 - Prob. 35PCh. 17 - Prob. 36PCh. 17 - Prob. 37PCh. 17 - Prob. 38PCh. 17 - Prob. 39PCh. 17 - Prob. 40PCh. 17 - Prob. 41PCh. 17 - Prob. 42PCh. 17 - Prob. 43PCh. 17 - Prob. 44PCh. 17 - Prob. 45PCh. 17 - Prob. 46PCh. 17 - Prob. 47PCh. 17 - Prob. 48PCh. 17 - Prob. 49PCh. 17 - (II) You buy an airtight bag of potato chips...Ch. 17 - (II) A typical scuba tank, when fully charged,...Ch. 17 - (III) Compare the value for the density of water...Ch. 17 - Prob. 53PCh. 17 - Prob. 54PCh. 17 - Prob. 55PCh. 17 - Prob. 56PCh. 17 - Prob. 57PCh. 17 - Prob. 58PCh. 17 - (II) What is the pressure in a region of outer...Ch. 17 - Prob. 60PCh. 17 - Prob. 61PCh. 17 - Prob. 62PCh. 17 - Prob. 63PCh. 17 - Prob. 64PCh. 17 - Prob. 65PCh. 17 - Prob. 66GPCh. 17 - Prob. 67GPCh. 17 - Prob. 68GPCh. 17 - Prob. 69GPCh. 17 - If a rod of original length 1 has its temperature...Ch. 17 - Prob. 71GPCh. 17 - Prob. 72GPCh. 17 - Prob. 73GPCh. 17 - Prob. 74GPCh. 17 - Prob. 75GPCh. 17 - Assume that in an alternate universe, the laws of...Ch. 17 - An iron cube floats in a bowl of liquid mercury at...Ch. 17 - Prob. 78GPCh. 17 - Prob. 79GPCh. 17 - From the known value of atmospheric pressure at...Ch. 17 - Prob. 81GPCh. 17 - Prob. 82GPCh. 17 - Prob. 83GPCh. 17 - Prob. 84GPCh. 17 - Prob. 85GPCh. 17 - Prob. 86GPCh. 17 - Prob. 87GPCh. 17 - A helium balloon has volume V0 and temperature T0...Ch. 17 - Prob. 89GPCh. 17 - Prob. 90GPCh. 17 - Prob. 91GPCh. 17 - Prob. 92GPCh. 17 - (III) You have a vial of an unknown liquid which...Ch. 17 - Prob. 94GPCh. 17 - Prob. 95GPCh. 17 - Prob. 96GPCh. 17 - Snorkelers breathe through short tubular snorkels...
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