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The time derivative of angular position used when studying rotating objects or systems.

8 votes
3 answers
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How long was a day at the creation of Earth?

Since the earth is slowing its rotation, and as far as I know, each day is 1 second longer every about 1.5 years, how long was an earth day near the formation of earth (4.5 billion years ago)? I woul …
Cameron Aziz's user avatar