Statement of a problem № 41274


The nucleus of 21 PO decays radioactively by emitting an alpha particle (mass 6.65 X 10-27 kg) with kinetic energy 1.23 X 10-12 J, as measured in the laboratory reference frame. Assuming that the Po was initially at rest in this frame, find the recoil velocity of 1he nucleus 1hat remains after the decay.

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