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Gravity and Friction
Page 1
Earth's Gravity
Page 3-4
Moon's Gravity
Page 5-6
Anti-Gravty
Page 11-12
Black Hole's Gravity
Page 7-8
Restitution
Page 9-10
Friction
Page 13-14
Rotational Friction
Page 15-16
Air Friction
Page 17-18
Avalanche
Page 17-18
Static Friction
Page 19-20
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Book 1
Gravity and Friction.
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