this is the question:(adsbygoogle = window.adsbygoogle || []).push({});

A starship is circling a distant planet of radius R. The astronauts find that the acceleration due to gravity at their altitude is half the value at the planet's surface. How far above the surface are they orbiting? Your answer will be a multiple of R.

using a= (GM)/r^2, i found out that d=2R

this is wrong, though

can someone please help me out?

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# Homework Help: Please help (gravitation problem)

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