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Chapter 10

# Chapter 10 - Chapter 10 Tides Barycentric motion of Earth...

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Chapter 10: Tides

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Barycentric motion of Earth and Moon.
Barycentric motion of Earth and Moon.

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Gm 1 m 2 r 2 Gravitational Force = G = gravitational constant m = mass of objects r = radius Gravitational equation reveals 2 important things: 1) The more massive an object, the stronger its gravitational force 2) The further apart 2 objects, the lower the gravitational force; because the distance (r) variable is squared, this gravitation forces decreases exponentially with distance (i.e., the effect of distance is very strong)
The further apart 2 objects, the lower the gravitational force; because the distance (r) variable is squared, this gravitation forces decreases exponentially with distance (i.e., the effect of distance is very strong) This results in oceans being pulled with most force on the side of Earth closest to moon (arrow size = force of gravitational attraction). Z = zenith; N = nadir Gravitational forces of moon on Earth’s surface

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Centripetal forces of moon on Earth’s surface Centripetal forces are forces that keep Earth’s particles in barycentric motion.
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Chapter 10 - Chapter 10 Tides Barycentric motion of Earth...

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