The nuclear reaction n+.5^(10)B rarr .3^...

The nuclear reaction `n+._5^(10)B rarr ._3^7Li + ._2^4He` is observed to occur even when very slow-moving neutrons `(M_ (n)=1.0087 am u)` strike a boron atom at rest. For a particular reaction in which `K_(n) =0` , the helium `(M_(He) =4.0026 am u)` is observed to have a speed of `9.30 xx 10^(6) m s^(-1)`. Determine (a) the kinetic energy of the lithium `(M_(Li) =7.0160 am u)` and (b) the `Q` value of the reaction.

2.80 MeV

2.82 MeV

2.85 MeV

2.88 MeV

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