4th Edition

ISBN: 9780137574728

Author: Knight

Publisher: PEARSON

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Chapter 13, Problem 52GP

As discussed in Section 13.3, a person’s percentage of body fat can be estimated by weighing the person both in air and underwater, from which the average density ρ_avg can be calculated. A widely used equation that relates average body density to fat percentage is the Siri equation, % body fat= (495/ρ_avg – 450, where ρ_avg is measured in g/cm³. One person’s weight in air is 947 N while his weight underwater is 44 N. What is his percentage of body fat?

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Chapter 13, Problem 50P

Chapter 13, Problem 53GP

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Chapter 13 Solutions

COLLEGE PHYSICS:STRATEGIC APPR.AP ED.

Ch. 13 - Which has the greater density, 1 g of mercury or...Ch. 13 - Prob. 2CQ Ch. 13 - Prob. 3CQ Ch. 13 - Prob. 4CQ Ch. 13 - Prob. 5CQ Ch. 13 - Prob. 6CQ Ch. 13 - Prob. 7CQ Ch. 13 - Prob. 8CQ Ch. 13 - Prob. 9CQ Ch. 13 - A steel cylinder at sea level contains air at a...

Ch. 13 - Prob. 11CQ Ch. 13 - Imagine a square column of the atmosphere, 1 m on...Ch. 13 - Prob. 13CQ Ch. 13 - Prob. 14CQ Ch. 13 - A beaker of water rests on a scale. A metal ball...Ch. 13 - Prob. 16CQ Ch. 13 - Prob. 17CQ Ch. 13 - Prob. 18CQ Ch. 13 - A heavy lead block and a light aluminum block of...Ch. 13 - When you place an egg in water, it sinks. If you...Ch. 13 - The water of the Dead Sea is extremely salty,...Ch. 13 - Fish can adjust their buoyancy with an organ...Ch. 13 - Prob. 23CQ Ch. 13 - Prob. 24CQ Ch. 13 - Prob. 25CQ Ch. 13 - Prob. 27CQ Ch. 13 - Prob. 28CQ Ch. 13 - Is it possible for a fluid in a tube to flow in...Ch. 13 - Prob. 31CQ Ch. 13 - Prob. 32MCQ Ch. 13 - Figure Q.13.33 shows a 100 g block of copper ( =...Ch. 13 - Masses A and B rest on very light pistons that...Ch. 13 - Prob. 35MCQ Ch. 13 - Prob. 36MCQ Ch. 13 - A large beaker of water is filled to its rim with...Ch. 13 - Prob. 38MCQ Ch. 13 - Prob. 40MCQ Ch. 13 - An object floats in water, with 75% of its volume...Ch. 13 - Prob. 42MCQ Ch. 13 - Water flows through a 4.0-cm-diameter horizontal...Ch. 13 - A 15-m-long garden hose has an inner diameter of...Ch. 13 - Prob. 1P Ch. 13 - Prob. 2P Ch. 13 - A standard gold bar stored at Fort Knox, Kentucky,...Ch. 13 - Prob. 4P Ch. 13 - Prob. 5P Ch. 13 - Prob. 6P Ch. 13 - Prob. 7P Ch. 13 - Prob. 8P Ch. 13 - A tall cylinder contains 25 cm of water. Oil is...Ch. 13 - A 35-cm-tall, 5.0-cm-diameter cylindrical beaker...Ch. 13 - The gauge pressure at the bottom of a cylinder of...Ch. 13 - Prob. 12P Ch. 13 - A research submarine has a 20-cm-diameter window...Ch. 13 - The highest that George can suck water up a very...Ch. 13 - Prob. 15P Ch. 13 - Prob. 16P Ch. 13 - Prob. 17P Ch. 13 - Glycerin is poured into an open U-shaped tube...Ch. 13 - A U-shaped tube, open to the air on both ends,...Ch. 13 - What is the height of a water barometer at...Ch. 13 - A cargo barge is loaded in a saltwater harbor for...Ch. 13 - Prob. 22P Ch. 13 - A 10 cm 10 cm 10 cm wood block with a density of...Ch. 13 - What is the tension in the string in Figure...Ch. 13 - What is the tension in the string in Figure...Ch. 13 - To determine an athletes body fat, she is weighed...Ch. 13 - Prob. 28P Ch. 13 - Styrofoam has a density of 32 kg/m3. What is the...Ch. 13 - Prob. 30P Ch. 13 - Calculate the buoyant force due to the surrounding...Ch. 13 - Prob. 32P Ch. 13 - Water flowing through a 2.0-cm-diameter pipe can...Ch. 13 - Prob. 34P Ch. 13 - Prob. 35P Ch. 13 - Prob. 37P Ch. 13 - Prob. 39P Ch. 13 - Prob. 40P Ch. 13 - What pressure difference is required between the...Ch. 13 - Prob. 42P Ch. 13 - Water flows at 0.25 L/s through a 10-m-long garden...Ch. 13 - Prob. 44P Ch. 13 - Prob. 45P Ch. 13 - Prob. 47P Ch. 13 - Prob. 48P Ch. 13 - Prob. 49P Ch. 13 - Prob. 50P Ch. 13 - As discussed in Section 13.3, a persons percentage...Ch. 13 - The density of aluminum is 2700 kg/m3. How many...Ch. 13 - An oil layer floats on 85 cm of water in a tank....Ch. 13 - Prob. 55GP Ch. 13 - Prob. 56GP Ch. 13 - A sphere completely submerged in water is tethered...Ch. 13 - Prob. 58GP Ch. 13 - A 5.0 kg rock whose density is 4800 kg/m3 is...Ch. 13 - A flat slab of styrofoam, with a density of 32...Ch. 13 - A 2.0 mL syringe has an inner diameter of 6.0 mm,...Ch. 13 - Prob. 62GP Ch. 13 - The leaves of a tree lose water to the atmosphere...Ch. 13 - II A hurricane wind blows across a 6.00 m 5.0 m...Ch. 13 - Prob. 65GP Ch. 13 - Prob. 66GP Ch. 13 - Prob. 67GP Ch. 13 - Prob. 68GP Ch. 13 - Prob. 69GP Ch. 13 - Smoking tobacco is bad for your circulatory...Ch. 13 - A stiff, 10-cm-long tube with an inner diameter of...Ch. 13 - Suppose that in response to some stimulus a small...Ch. 13 - Prob. 73MSPP Ch. 13 - Prob. 75MSPP

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