# trig

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A space shuttle 200 miles above the earth is orbiting the. Earth once every 6 hours. how far does the shuttle travel in one hour? Note the radius of earth about 4000 miles.

• trig -

circumference = 2π(4200) = 8400π miles

It does this in 6 hours, so in 1 hour ---> 8400π/6 or appr. 4398.2 miles

• trig -

The actual circular orbit velocity of a pseudo-space shuttle at 200 miles altitude above the earth of 3963 miles radius is 17,257 mph, taking ~91 minutes to complete an orbit.

I can only assume that the numbers given you for the stated problem were to allow you to exercise the process of solving.

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