Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 9, Problem 17Q
To determine
The fraction of Earth’s mass that comprises its inner core.
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Geophysicists today generally attribute the existence of the earth’s magnetic field to…
a.
convection currents within the earth’s outer core liquid interior
b.
the earth's solid iron core
c.
iron ore deposits in the crust
d.
cosmic rays from the sun
What percentage of Earth's volume is the metallic core?
Note: The volume of a sphere is
4
3
πr3.
Assume the Earth has a radius of 6.38 103 km, and the core has a radius of 3.51 103 km.
........%
Earth's surface area is 5.10x10^8 km^2 .Earth's crust has a thickness (or depth) of 35 km and density 2.8 g/cm^3 for earth's crust.
d) Silicon's concentration in earth's crust is 2.72x105grams/ton. Calculate the mass of silicon (in grams) present in earth's crust.
Chapter 9 Solutions
Universe
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Ch. 9 - Prob. 11CCCh. 9 - Prob. 12CCCh. 9 - Prob. 13CCCh. 9 - Prob. 14CCCh. 9 - Prob. 1CLCCh. 9 - Prob. 2CLCCh. 9 - Prob. 3CLCCh. 9 - Prob. 1QCh. 9 - Prob. 2QCh. 9 - Prob. 3QCh. 9 - Prob. 4QCh. 9 - Prob. 5QCh. 9 - Prob. 6QCh. 9 - Prob. 7QCh. 9 - Prob. 8QCh. 9 - Prob. 9QCh. 9 - Prob. 10QCh. 9 - Prob. 11QCh. 9 - Prob. 12QCh. 9 - Prob. 13QCh. 9 - Prob. 14QCh. 9 - Prob. 15QCh. 9 - Prob. 16QCh. 9 - Prob. 17QCh. 9 - Prob. 18QCh. 9 - Prob. 19QCh. 9 - Prob. 20QCh. 9 - Prob. 21QCh. 9 - Prob. 22QCh. 9 - Prob. 23QCh. 9 - Prob. 24QCh. 9 - Prob. 25QCh. 9 - Prob. 26QCh. 9 - Prob. 27QCh. 9 - Prob. 28QCh. 9 - Prob. 29QCh. 9 - Prob. 30QCh. 9 - Prob. 31QCh. 9 - Prob. 32QCh. 9 - Prob. 33QCh. 9 - Prob. 34QCh. 9 - Prob. 35QCh. 9 - Prob. 36QCh. 9 - Prob. 37QCh. 9 - Prob. 38QCh. 9 - Prob. 39QCh. 9 - Prob. 40QCh. 9 - Prob. 41QCh. 9 - Prob. 42QCh. 9 - Prob. 43QCh. 9 - Prob. 44QCh. 9 - Prob. 45QCh. 9 - Prob. 46QCh. 9 - Prob. 47QCh. 9 - Prob. 49QCh. 9 - Prob. 51QCh. 9 - Prob. 52Q
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- The Moho boundary separates which two layers of Earths interior? (21.1) (a) oceanic and continental crust (b) upper and lower mantle (c) inner and outer core (d) crust and lithospherearrow_forwardDescribe three forms of erosion that cause slow evolution of Earths surface.arrow_forwardHow is the heat in the earth’s centre able to melt the outer core but not the inner core?arrow_forward
- Nitrogen is the most abundant element in the earth's crust. True Falsearrow_forwardThe Earth has an approximate mass of 5.97*10^24 kg and a radius of 6,300 km. If the crust accounts for 31% of the mass and its radius is 2 times smaller, then the density of the core in kg/m3 must be approximatelyarrow_forward
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