physics
posted by bill
HELP PLEASE!!! A satellite moves in a circular orbit around Earth at a speed of 5085 m/s.
(a) Determine the satellite's altitude above the surface of Earth.
(b) Determine the period of the satellite's orbit.
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bobpursley
centripetal force: mv^2/r
where r is distance from CENTER of Earth.
then set this equal to gravitational force
GMem/r^2
GMe/r^2=v^2/r solve for r, then subtract Radiusearth to get altitude.
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