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________________ is the wobbling around the precessional axis, and is caused by the moon.
speeds up
barycenter
nutation
ellipses
angle of light
gravity
Rotation
spiral
According to Kepler the shape of planetary orbits are____________.
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barycenter
nutation
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angle of light
gravity
Rotation
spiral
What is the shape of the Milky Way Galaxy?
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barycenter
nutation
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gravity
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spiral
The point between two objects where they balance each other is ____________.
speeds up
barycenter
nutation
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angle of light
gravity
Rotation
spiral
_________________ is the force exerted on the Earth by the moon and on the moon by the Earth.
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barycenter
nutation
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angle of light
gravity
Rotation
spiral
Earth's day and night are caused by _______________.
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barycenter
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angle of light
gravity
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Earth's seasons are caused by ____________.
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barycenter
nutation
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angle of light
gravity
Rotation
spiral
According to Kepler what happens to a planet's speed as it gets closer to the Sun?
speeds up
barycenter
nutation
ellipses
angle of light
gravity
Rotation
spiral
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