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AP Physics 2/Unit 15 – Modern Physics
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Kinetic Energy Distribution in a Nuclear Reaction

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A neutron with a kinetic energy of 0.025 eV is absorbed by a boron-10 nucleus, producing a lithium-7 nucleus and an alpha particle. The Q-value of this reaction is 2.79 MeV. What fraction of the total kinetic energy of the products is carried by the alpha particle?

A

0.63

B

0.50

C

0.37

D

0.75

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