Sr-90 (A=90, Z = 38) decays via B decay. Calculate the energy of the antineutrino (in keV) if the beta particle has a kinetic energy of (2.82x10^2) keV. Note - you can look the atomic masses up online or in the appendix of the textbookç 1. Assume all the energy released are shared by the kinetic energy of the beta particle and antineutrino.
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