Physics :(( help please TT

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The space shuttle had a top orbital speed of 8000 m/s and orbited in a circular orbit approximately 320 km above the earth's surface. How long was one orbit in seconds?

Details and assumptions
The radius of the earth is 6370 km.

  • Physics :(( help please TT -

    orbital radius = 6370+320=6690km
    orbital circumference is thus 2pi*6690 = 42034km

    divide that (in meters) by 800 m/s to get the period in seconds.

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