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This is a discussion on The earth weighs - within the Science and Technology forums, part of the Hobbies category; Originally Posted by Sweet Denial Perhaps we know the earth weighs that much because of how fast it's going. Just ...

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Old 03-09-09, 04:17 PM   #11
 
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Quote:
Originally Posted by Sweet Denial View Post
Perhaps we know the earth weighs that much because of how fast it's going.
Just had a quick look :)
The info can be found here ...HowStuffWorks "How much does planet Earth weigh?"

Have a nice day

J :)
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Old 03-09-09, 04:20 PM   #12
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I'll have to check that out I was also wondering how it could accurately be measured
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Old 03-09-09, 10:12 PM   #13
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Well if you know how far from the sun the earth is and how fast it is going, you can calculate the centripetal force needed to keep the earth in orbit. Since the earth is in a stable orbit and not flying off into space they must be equal - that is the weight of the earth.

How do scientists measure or calculate the weight of a planet?: Scientific American
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