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.
sqrt((([299792 km/s]/[2.99792x10^7 Mhz/s])/[105.65869 MeV])*[1.884×10^-27 newton s]^1)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random