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Home Q & A Board Science-Related Homework Help Physics Astronomy
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Tsync Tsync
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8 years ago
Which of these was a contribution of Newton to astronomy?
A) The Moon pulls as strongly on us as we do on it.
B) The Sun's gravity is greatest on a planet at perihelion, so the planet must speed up.
C) His differential calculus lets us calculate planetary motions more accurately.
D) Artificial satellites could be put into orbit about the Earth.
E) All of these were due to Newton's work.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
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Minoring in physics
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RatatouilleRatatouille
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8 years ago
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Tsync Author
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#2
8 years ago
This astronomy class is killing me, thanks for chiming in and answering
Minoring in physics
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#3
8 years ago
Cool Smiling Face with Open Mouth
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