There are many numbers quoted here and in different kinds of units. Be careful that you use the one with units of kg.
http://en.wikipedia.org/wiki/Proton
What is the wavelength of a proton traveling at a speed of 6.21 km/s? What would be the region of the spectrum for electromagnetic radiation of this wavelength.
For this one I did the same thing
6.63 X 10^-34/ (? kg)(6210 m/s) =
How do get the kg for the problem
3 answers
so that website means that i need to use 1.6726 x 10^-27 kg
why that number
why that number
Because that's the mass of the proton in kilograms. Isn't that what you were looking for. The mass of the proton?
1 answer