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.
((mass of paper / (8.5 * 11 in ^2)) * 1cm^2 ) / (mass of proton)
((mass of paper / (8.5 * 11 in ^2)) * 1cm^2 ) / (mass of proton)
Natural Language
Math Input
Extended Keyboard
