What is tha recoil speed of daughter nucleus if 84X210 originally at rest emit alpha particle with speed v

Answers (1)

@sheeba

(Atoms molecule)m = (alpha)? + (daughter mass)m-4

Initial mass = m

Injtial velocity = 0

Initial momentum = 0

Final mass = m & m-4

Final velocity of alpha is v and daughter is v'

0 = 4v + (m-4) v'

V' = -4v/(m-4)

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