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Earth is spinning along at 1,674 km/h at the equator. Use this number to find Earth's equatorial diameter.

4 answers

velocity=rotation rate*radius
rotation rate=1rev/day
velociyt= 2PI radians/day*1day/24hrs *radius

velocity=1674km/h

radius=167km*24hr/hr /2PI

radius=1674km*24hr/hr /2PI

20088

12742 km

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