Feb
04
Planet X Has Two Times the Diameter and Three Times the Mass of the Earth. What Is the Ratio gX : Ge of …?
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Planet X has two times the diameter and
three times the mass of the earth. What is the ratio gX : ge of gravitational
acceleration at the surface of planet X to the gravitational acceleration at the surface of the Earth?
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2 Comments
February 4th, 2010 at 6:50 pm
Planet X = Death Star
February 4th, 2010 at 7:08 pm
a=G*M/r^2
a(of X) = G*(3*M)/(2r)^2 = (3/4)*G*M/r^2
gX:ge
3/4:1