Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
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Textbook Question
Chapter 8, Problem 1E
What is the thickest interior layer of Earth? The thinnest?
Expert Solution & Answer
To determine
The thickest and the thinnest interior layer of earth.
Explanation of Solution
Introduction:
Measuring the thickness of different layers of the earth is possible as all layers have different properties. This is the reason due to which during earthquake waves travel with different velocities in each layer of the earth. When the wave enters another layer, then due to the change in the denseness of the medium, refraction of seismic wave takes place which makes it possible to know the thickness of the layer indirectly.
In general, the earth is known to have
The mantle is the layer next to the earth’s crust layer, and it covers approximately
Conclusion:
Therefore, Earth’s crust is the thinnest layer and mantle is the thickest one among all the layers.
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Point charges of 6.50 μC and -2.50 μC are placed 0.300 m apart. (Assume the negative charge is located to the right of the positive charge. Include the sign of the value in your answers.)
(a) Where can a third charge be placed so that the net force on it is zero?
0.49
m to the right of the -2.50 μC charge
(b) What if both charges are positive?
0.49
xm to the right of the 2.50 μC charge
Find the electric field at the location of q, in the figure below, given that q₁ =9c9d = +4.60 nC, q = -1.00 nC, and the square is 20.0 cm on a side. (The +x axis is directed to the right.)
magnitude
direction
2500
x
What symmetries can you take advantage of? What charges are the same magnitude and the same distance away? N/C
226
×
How does charge sign affect the direction of the electric field? counterclockwise from the +x-axis
9a
9b
%
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Chapter 8 Solutions
Astronomy
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