# Physics

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the space shuttle is in a 250 mile high orbit. What are the shuttle's orbital period, in minutes, and it speed?

• Physics -

the space shuttle is in a 250 mile high orbit. What are the shuttle's orbital period, in minutes, and it speed?

The earth's radius r = ~3963 miles.

The orbital speed is given by V = sqrt(µ/r) ft./sec. where µ = the gravitational constant of the earth = 1.407974x10^16 ft.^3/sec.^3.

The orbital period derives from
T = [2(3.14)sqrt(r^3/µ)]/60 minutes.

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