Assuming the length of the day uniformly...

Assuming the length of the day uniformly increases by 0.001 second per century. Calculate the net effect on the measure of time over 20 centuries.

`3.2` hour

`2.1` hour

`2.4` hour

`5` hour

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(b) The length of day after 20 centurey is 24 and `0.21s`
`:.` The change in time `Delta=(0.21xx365xx100"hour")/(60xx60)`
`=2.1` hour

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