Question

A uranium -238 nucleus at rest undergoes radioactive decay, splitting into an alpha particle (helium nucleus) with mass 6.64x10^-27kg and a thorium nucleus with mass 3.89x10^-25kg. The measured kinetic energy of the alpha particle is 7.47x10^-13 J.

negative x: If after the decay, the thorium nucleus is observed to move in the positive x direction. After the decay, what direction did the alpha particle move?

After the decay, what is the kinetic energy of the thorium nucleus?

Answer 1

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