anonymous
  • anonymous
What force does earth's gravity exerts on a 81-kg astronaut who is orbiting in a space station at a distance from the SURFACE of the earth equal to 2 earth radii? Show your calculations.Your answer must be in newtons help !
Physics
katieb
  • katieb
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anonymous
  • anonymous
F=GMm/R
anonymous
  • anonymous
G is the universal gravitational constant G = 6.6726 x 10-11N-m2/kg2
anonymous
  • anonymous
M- mass of earth m- mass of astranaut R-radius of earth/ or just a distance of two objects, here it is 2 times of earth radius

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JFraser
  • JFraser
^ the astronaut is 2 earth radii from the SURFACE, so his distance is really 3x the earth's radius
anonymous
  • anonymous
thank u guys so much :)

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