Question
An electron has a total energy of 2.8 MeV. What is its momentum?
Answers
Count Iblis
In c = 1 units:
E^2 - p^2 = m^2 ------>
p = sqrt[E^2 - m^2] =
sqrt[2.8^2 - 0.511^2] MeV =
2.753 MeV
Put c back by dividing by c
p = 2.753 MeV/c = 1.47*10^(-21) kg m/s
E^2 - p^2 = m^2 ------>
p = sqrt[E^2 - m^2] =
sqrt[2.8^2 - 0.511^2] MeV =
2.753 MeV
Put c back by dividing by c
p = 2.753 MeV/c = 1.47*10^(-21) kg m/s