- #1
NikkiNik
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Homework Statement
Electrons are accelerated from rest through a potential difference of 250000 V. What is the final speed predicted classically?
What is the final speed predicted relativistically?
Homework Equations
KE=0.5mv^2
KE=mc^2-m0c^2
The Attempt at a Solution
a.2.96×108 m/s
b. I keep ending up with the speed of light which I know is incorrect...for m I know I use m0/sqrt (1-v^2/c^2) so the final equation is KE which I found to be 4.005e-14 J= m0/sqrt (1-v^2/c^2)*c^2 -m0c^2