Which of these was a contribution of Newton to astronomy?
A)Artificial satellites could be put into orbit about the Earth.
B)The Sun's gravity is greatest on a planet at perihelion, so the planet must speed up.
C)The Moon pulls as strongly on us as we do on it.
D)His differential calculus lets us calculate planetary motions more accurately.
E)All of these were due to Newton's work.

Question

Quizplus · Accepted Answer

All of these contributions were due to Newton's work in astronomy. Newton's laws of motion and universal gravitation allowed for the understanding of the motion of celestial objects, including the moon, planets, and artificial satellites. Newton also developed differential calculus, which was crucial for accurately calculating planetary motions. All of these contributions were made by Newton to the field of astronomy. Newton's work on gravity and calculus allowed for a greater understanding of planetary motion and the ability to put artificial satellites into orbit. Additionally, his laws of motion helped explain the Moon's gravitational pull on Earth.

Which of These Was a Contribution of Newton to Astronomy