College Physics
10th Edition
ISBN: 9781285737027
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Chapter 9, Problem 79AP
As a first approximation. Earth's continents may be thought of as granitr blocks floating in a denser rock (called peridotitc) in the same way that ice floats in water. (a) Show that a formula describing this phenomenon is
ρgt = ρpd
where ρg is the density of granite (2.8 × 103 kg/m3), ρp is the density of peridotite (3.3 × 103 kg/m3), t is the thickness of a continent, and d is the depth to which a continent floats in the peridotite. (b) If a continent sinks 5.0 km into the peridotite layer (this surface may be thought of as the ocean floor), what is the thickness of the continent?
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College Physics
Ch. 9.2 - Suppose you have one cubic meter of gold, two...Ch. 9.4 - The pressure at the bottom of a glass filled with...Ch. 9.5 - Several common barometers are built using a...Ch. 9.5 - Blood pressure is normally measured with the cuff...Ch. 9.6 - Atmospheric pressure varies from day to day. The...Ch. 9.6 - The density of lead is greater than iron, and both...Ch. 9.7 - You observe two helium balloons floating next to...Ch. 9 - Physics Review A soap bubble hovers motionlessly...Ch. 9 - Physics Review A team of huskies performs 7 440 J...Ch. 9 - Prob. 3WUE
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Earth's continents may...Ch. 9 - Prob. 80APCh. 9 - Prob. 81APCh. 9 - Superman attempts to drink water through a very...Ch. 9 - The human brain and spinal cord are immersed in...Ch. 9 - A Hydrometer is an instrument used to determine...Ch. 9 - Prob. 85APCh. 9 - A helium-filled balloon, whose envelope has a mass...Ch. 9 - A light spring of constant A = 90.0 N/m is...Ch. 9 - A U-tube open at both ends is partially filled...Ch. 9 - In about 1657. Otto von Guericke, inventor of the...Ch. 9 - Oil having a density of 930 kg/m3 floats on water....Ch. 9 - Prob. 91AP
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