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HPRF
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Homework Statement
Taking into account the electrons momentum and relativistic energy prove that W=(m(sub0)^2c^4+p^2c^2)^(1/2)
Homework Equations
p=(gamma)m(sub0)v; W=(gamma)m(sub0)c^2.
The Attempt at a Solution
I have tried expanding the relativistic factor gamma=(1/(1+v^2/c^2))^1/2 but got nowhere. I'm wondering if I need to bring in another equation