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7. ) If it’s midnight in North America and the Earth has rotated 90֯, then how many hours have passed
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7. ) If it’s midnight in North America and the Earth has rotated 90֯, then how many hours have passed

User Emtiaz Zahid
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A full rotation of the earth is 24 hours and a 360° spin. 90° is a quarter of 360° so, if we have a quarter of Earth’s rotation then a quarter day has passed making it 6 hours.
User Ndori
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