So in 1 day, the earth rotates 24,000 miles (according to your data)
after 4 hours it rotated 4000 miles
4000/24000 = 1/6
1/6 of a rotation after 4 hours
do the others in the same way
If earth rotates at about 1000 mph and it rotates constantly each day. How many rotations will it complete after 4th hour, 8th hour and 24th hour.
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