Which is stronger, the earth's pull on the moon, or the moon's pull on the earth?
A. the earth's pull
B. the moon's pull
C. they're the same
C. they're the same (Newton’s 3rd law)
You might also like to view...
The planet Neptune is, on average, about 4.5 billion km from the sun. How long does it take light from the sun to reach Neptune? (Recall that the speed of light is about 300,000 km/s)
A) about 4 days B) about 4 hours C) about 4 seconds D) about 4 minutes
The force that binds atoms together to form molecules is
A) gravitational. B) nuclear. C) electrical. D) centripetal. E) none of the above
Shown below are the four terrestrial planets of our solar system. Assume that all the planets started out equally hot inside. Rank the planets based on their expected cooling rates, from fastest cooling to slowest cooling.
What causes the blue appearance of the planet Uranus?
A. The composition of Uranus's atmosphere is the same as Earth's atmosphere that makes the sky blue. B. Uranus's atmosphere contains methane that strongly absorbs red colors from the sunlight. C. The planet is covered by an ocean of water. D. The planet is very cold.