Asked by Sam

If an electron has a total energy of 5.6 MeV, how would I find the kinetic energy and momentum??
Answered by bobpursley


KE=totalenergy-restenergy
KE=5.6MeV-m<sub>o</sub>c
KE= 5.6Mev- 0.511 MeV=5.089MeV
KE=5.089MeV=8.15347682e-16 joules

totalenergy^2=(pc)^2+restenergy^2
solve for momentum p
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