Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 9 - Think and Discuss: 104


As discussed on page 170, the reasoning is the same as it is for the tides in Earth’s oceans. The Earth's crust and its atmosphere are large enough that when comparing diametrical sides, there are significant differences in the distances to the moon and to the sun. That means there are differences in gravitational attraction, and this effect explains the presence of tides in the crust and in the atmosphere.
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