Question

1 SECOND IS 1 PART OF _____PARTS OF A DAY?

Answer 1

Answer:

One second is equal to 1/86,400 of a mean solar day. This is easy to derive from the fact that there are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a mean solar day. This definition is, however, subject to limited accuracy because of irregularities in the earth's orbit around the sun.

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Answer 2

Explanation:

1/86400

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