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4) In a nuclear reaction, the total mass of the reactants and products are found to be
205.32 u and 205.21 u. respectively. Assume that the kinetic energy of the products is
carried entirely by 4 neutrons. Ignore radiation energy.
a) Determine the Q-value of the reaction.
b) If the kinetic energy of the reactants is 10 J, determine the average speed of the
neutrons emitted.

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