Answer:

Explanation:
It says “Momentum before the collision is equal to momentum after the collision.” Elastic Collision formula is applied to calculate the mass or velocity of the elastic bodies.












The Answer is C. the distance light travels in a year
Explanation:
The moon is the earth satellite and it orbits our blue planet. Earth, moon and mercury are all rock materials in the solar system. They are all made up of dense silicate balls of rocks.
- The Earth and Mercury are made up of silicate minerals and some iron core but the moon is predominant made up of silicate balls.
- The earth has liquid water on it's surface but the moon has no liquid water.
- The earth is an active planet in terms of tectonic activity. The moon is not active tectonically.
Learn more:
moon brainly.com/question/12785992
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