Compare the orbital speeds of satellites that orbit at the following altitudes.(adsbygoogle = window.adsbygoogle || []).push({});

(a) One Earth radius above the surface of the Earth (in km/s)

(b) Two and a half Earth radii above the surface of the Earth.

Here is the equation to be used,

orbital speed is v=(sqrt)(GM/r)

G is the universal gravitational constant

M is the mass of the thing in the middle

r is the distance from the center of the thing in the middle to the center of the thing in orbit.

V=(sqrt) [(6.67E-11)(5.97E24 kg)/ (6378000 m]

...and yet, my answer is incorrect.

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# Homework Help: Planetary motion please help?

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