Recent content by roughtenator

is this valid? (K+MC2) = P2C2 + (MC2)2 then isolate K?

Relation between kinetic energy and total energy in special relativity is... E = K + mc2 Relationship between mass, energy and momentum is... E2 = P2C2 + (mc2)2

A Fe nucleus at rest emits a 14.0-keV photon. Use conservation of energy and momentum to deduce the kinetic energy of the recoiling nucleus in electron volts. (Use Mc2 = 8.60E-9 J for the final state of the Fe nucleus.) what I have so far is... E = pc because E >> photon rest energy , which =...