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AP Physics 2
15.8 Types of Radioactive Decay
15.7 Fission, Fusion, and Nuclear Decay
AdvancedMCQMathematicalConceptual24.3k
Alpha decay of a stationary parent nucleus.
Alpha decay of a stationary parent nucleus.
A stationary parent nucleus with atomic mass number \(A\) undergoes alpha decay, emitting an alpha particle of mass number \(4\) and leaving behind a recoiling daughter nucleus. Assuming the speeds of the decay products are non-relativistic and the mass of each nucleus is directly proportional to its mass number, which of the following expressions represents the ratio \(\dfrac{K_\alpha}{K_D}\) of the kinetic energy of the alpha particle to the kinetic energy of the recoiling daughter nucleus?

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