Lecture 9 - Today(Wednesday in Astro 3 Cell phones off now...

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Today (Wednesday) in Today (Wednesday) in Astro Astro 3 3 z Cell phones off now, please z Emergency rations available z Today: Chapter 5 “Earth and its Moon” z Online quiz #3 covering chapters 4 and 5 is posted, due next Monday by 10 p.m.
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Where we are: We just finished a brief tour of the Solar System Today Chapter 5 “Earth and its Moon” Discuss Earth and Moon in detail from “planetary” point of view Good basis for discussing other planets Coming up: The rest of the terrestrial planets (Chapter 6) The jovian planets (Chapter 7) Moons, rings, and Pluto (Chapter 8) The Sun (Chapter 9)
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4.1 An Inventory of the Solar System
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5.1 Earth and the Moon in Bulk
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5.2 The Tides Tides are due to gravitational force on Earth from Moon – force on near side of Earth is greater than force on far side. Water can flow freely in response.
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5.2 The Tides The Sun has less effect, but it does modify the lunar tides:
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5.2 The Tides Tides tend to exert a “drag” force on the Earth, slowing its rotation .
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