- #1
patapat
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Homework Statement
How much work must be done on a proton to increase its speed by each of the values below?
(a) 0.15c to 0.16c
(b) 0.81c to 0.82c
(c) 0.93c to 0.94c
The answer is given in MeV which is a million electron volts.
mass of proton=1.67x10^-27kg
Homework Equations
e=mc^2
1 J=1.6x10^-19eV=1.6x10^-13MeV
The Attempt at a Solution
I'm not sure if this is even the correct equation to use, but I don't see any other appropriate equations in this book.
Energy required at .15c
e=(1.67x10^-27kg)(.15*3x10^8)^2
e=3.38x10^-12J
Convert to MeV
e=21.14MeV
Energy required at .16c
e=(1.67x10^-27kg)(.16*3x10^8)^2
e=3.85x10^-12J
convert to MeV
e=24.05MeV
Energy required to go from .15c-16c
24.05MeV-21.14MeV=2.91MeV
Which I found to be wrong, obviously.
Thanks in advance to any and all help. Much appreciated.
-Pat