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How do they measure the earths mass?

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Anonymous

15y ago
Updated: 8/17/2019

-- Take an object of known mass, such as a liter of water.

-- Measure the force of gravitational attraction between it and the earth, by placing it on a scale and "weighing" it.

-- Knowing the distance from the center of the earth (earth's "radius") and the value of the Gravitational constant,
and using the formula for the gravitational force between two masses, the earth's mass can now be calculated.

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15y ago

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