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.
0.5(3.3 * 10^16 kg) ((18 km/s) ^2) / (1.5 * 10 ^ 17 newtons)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random