Homework Help: Physics

Posted by Nick on Wednesday, March 2, 2011 at 9:31pm.

A satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 2.60 104 s. What is the speed at which the satellite travels?

Physics - tchrwill, Thursday, March 3, 2011 at 11:33am
T = orbital period in seconds
ľ = Earth's gravitational constant = 3.98x10^14
r = radius of orbit in meters

From T = 2(Pi)sqrt[r^3/ľ] r = 18,959.3m.
From V = sqrt[ľ/r], V = 4581m/s

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