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Calculate the Mass of The Earth

Supplementary Resources

A note to the Instructor:


    • All distance and velocity data from NASA in this exercise are in Kilometers. The value for G is usually given with units of meters (6.673 meters cubed kilograms per second squared). To eliminate the extra conversions, the students are given G with units of Km. Forces will be in units of Kilonewtons. One kilonewton equals 1000 newtons or 224.8 lbs of force.