Asked by Anonymous

A proton in a linear accelerator has a de Broglie wavelength of 115pm. What is the speed of the proton?
Answered by DrBob222
wavelength in m = h/mv
h is Plancks constant
m is mass proton in kg
v is velocity in m/s
Answered by Anonymous
how would you find out the mass?
Answered by DrBob222
Go to Google, type in mass proton. Or look in your text/notes.
Answered by Anonymous
3.5^3
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