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A stationary .(82)^(200)Pb nucleus emits...

A stationary `._(82)^(200)Pb` nucleus emits an `alpha`-particle with kinetic energy `T_(alpha) = 5.77 MeV`. Find the recoil velocity of a daughter nucleus. What fraction of the total energy liberated in this decay is accounted for by the recoil energy of daughter nucleus ?

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The correct Answer is:
`3.46 xx 10^(3) m//s, 0.02`
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