Homework Help: Astronomy 1010

Posted by Frank on Tuesday, January 17, 2012 at 8:25pm.

The International Space Station orbits approximately 350 km above the Earth's surface. (The Earth's radius is 6,378 km.) Are the astronauts beyond the pull of Earth's gravity? Explain your reasoning.

Astronomy 1010 - bobpursley, Tuesday, January 17, 2012 at 8:28pm
If Earth's gravity was not there, the space station would not be in orbit. What do you think is holding it in orbit?
Astronomy 1010 - victor, Monday, January 23, 2012 at 9:09am
The ISS is being pulled by everything in the universe. Very little, but its being pulled.

Because Gm1m2/r^2

And you can't divide something and get 0, you can only get close to 0.

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