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Zorch, an archenemy of Superman, decides to slow earth's rotation to once per 28.5h by exerting...

Zorch, an archenemy of Superman, decides to slow earth's rotation to once per 28.5h by exerting a force parallel to the equator, opposing the rotaton. Superman is not immediately concerned, because he knows Zorch can only exert a force of 4.05x10^7N.

How long, in seconds, must Zorch push with this force to accomplish his goal?

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