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  3. a uranium-238 nucleus at rest undergoes radioactiv

A uranium-238 nucleus at rest undergoes radioactive decay, splitting into an alpha particle (helium nucleus) with...

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Physics

A uranium-238 nucleus at rest undergoes radioactive decay,splitting into an alpha particle (helium nucleus) with mass6.64×10-27 kg and a thorium nucleus with mass 3.89×10-25 kg. Themeasured kinetic energy of the alpha particle is 6.73×10-13 J. Ifafter the decay, the thorium nucleus is observed to move in thenegative z direction. After the decay, what direction did the alphaparticle move? possible answers: Positive x, Negative x, Positivey, Negative y, Positive z, Negative z. After the decay, what is thekinetic energy of the thorium nucleus?

Answer & Explanation Solved by verified expert
4.0 Ratings (419 Votes)
a Since after the decay the thorium nucleus is observed to move in the negative z direction then the alpha particle will move in positive z direction due the conservation of momentum b For find out the kinetic energy of the    See Answer
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