Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
6.6743e-11*5.972e24/6.3781e6^2*10-6.6743e-11*5.972e24/(6.3781e6+.3)^2*10
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
