Universe: Stars And Galaxies
6th Edition
ISBN: 9781319115098
Author: Roger Freedman, Robert Geller, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 3, Problem 38Q
To determine
The reason for the Moon’s umbra to move in the eastward direction and not in the westward direction across the Earth’s surface.
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Solve the problem.
The angle of elevation 0 of the sun in the sky at any latitude Lis calculated with the
formula sine-cos D cos L cos o sanD sin L wis the number of radians that the Earth
has rotated through since noon when w-0. Dis the declination of the sun. Westville
has latitude L-379. Find the angle of elevation 0 in degrees of the sun at 3 PM on
February 29, 2012, where at that time D-01e5 and w0.7854
368
O 28
26.9
Assume the radius of the earth is 3960 miles.
1) A point ? on the surface of the earth is 1500 miles north of the point on the equator closest to it. Find the latitude of the point ? in degree measurement.
The angle of elevation 0 of the sun in the sky at any latitude Lis calculated with the
formula sane-cos Dcos L cos wsanD sinL wis the number of radians that the Earth
has rotated through since noon when w-0. Dis the declination of the sun. Westville
has latitude L-30 . Find the angle of elevation 8 in degrees of the sun at 3 PM on
February 29, 2012, where at that time D-0.125 and w-0.7854
O 36.8
28
O 05
26.9"
Chapter 3 Solutions
Universe: Stars And Galaxies
Ch. 3 - Prob. 1QCh. 3 - Prob. 2QCh. 3 - Prob. 3QCh. 3 - Prob. 4QCh. 3 - Prob. 5QCh. 3 - Prob. 6QCh. 3 - Prob. 7QCh. 3 - Prob. 8QCh. 3 - Prob. 9QCh. 3 - Prob. 10Q
Ch. 3 - Prob. 11QCh. 3 - Prob. 12QCh. 3 - Prob. 13QCh. 3 - Prob. 14QCh. 3 - Prob. 15QCh. 3 - Prob. 16QCh. 3 - Prob. 17QCh. 3 - Prob. 18QCh. 3 - Prob. 19QCh. 3 - Prob. 20QCh. 3 - Prob. 21QCh. 3 - Prob. 22QCh. 3 - Prob. 23QCh. 3 - Prob. 24QCh. 3 - Prob. 25QCh. 3 - Prob. 26QCh. 3 - Prob. 27QCh. 3 - Prob. 28QCh. 3 - Prob. 29QCh. 3 - Prob. 30QCh. 3 - Prob. 31QCh. 3 - Prob. 32QCh. 3 - Prob. 33QCh. 3 - Prob. 34QCh. 3 - Prob. 35QCh. 3 - Prob. 36QCh. 3 - Prob. 37QCh. 3 - Prob. 38QCh. 3 - Prob. 39QCh. 3 - Prob. 40QCh. 3 - Prob. 41QCh. 3 - Prob. 42QCh. 3 - Prob. 43QCh. 3 - Prob. 44QCh. 3 - Prob. 45QCh. 3 - Prob. 46QCh. 3 - Prob. 47QCh. 3 - Prob. 48QCh. 3 - Prob. 49QCh. 3 - Prob. 50Q
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