Sagot :
Answer:
The weight (or the mass) of a planet is determined by its gravitational effect on other bodies. Newton's Law of Gravitation states that every bit of matter in the universe attracts every other with a gravitational force that is proportional to its mass.
Answer:
Scientists have figured out Earth's mass using the planet's gravitational pull and math. To determine the mass of planets other than Earth, scientists need to study the tug of gravity between the planet and another object, such as a moon or star.29
Explanation:
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