Tidal Friction - It adds up! 4 billion years ago 1 day may...

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Tidal Friction Earth’s rotation slows down (1 sec every 50,000 yrs.) Conservation of angular momentum causes the Moon to move farther away from Earth. The Moon is moving away from Earth at of 38 mm per year!
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Unformatted text preview: It adds up! 4 billion years ago 1 day may have only been 5 or 6 hours long. The moon may have been 1/10 the distance: 22 Earth radii away instead of 221 How big would the tides be if the Moon was 110 Earth radii away?...
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