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

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A uranium-238 nucleus at rest undergoes radioactive decay,splitting into an alpha particle (helium nucleus) with mass6.64Ã—10-27 kg and a thorium nucleus with mass 3.89Ã—10-25 kg. Themeasured kinetic energy of the alpha particle is 6.73Ã—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?

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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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