21st Century Astronomy (fifth Edition)
21st Century Astronomy (fifth Edition)
5th Edition
ISBN: 9780393603330
Author: Laura Kay, Stacy Palen, George Blumenthal
Publisher: W. W. Norton & Company
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Chapter 19, Problem 44QP

(a)

To determine

The angular size of the material ejected from the supermassive black hole in the nighttime sky in terms of degree.

(b)

To determine

To compare the size with the angular size of the moon.

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A cube has sides of length L = 0.800 m . It is placed with one corner at the origin as shown in the figure. The electric field is not uniform but is given by E→=αxi^+βzk^, where  α=−3.90 and β= 7.10. What is the sum of the flux through the surface S5 and S6?  What is the sum of the flux through the surface S2 and S4? Find the total electric charge inside the cube.
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A point charge of magnitude q is at the center of a cube with sides of length L. What is the electric flux Φ through each of the six faces of the cube? What would be the flux Φ1 through a face of the cube if its sides were of length L1? Please explain everything.
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