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Physics
Physics
Problem
The number of neutrons emitted when
92
235
U
^{235}_{92}\text{U}
92
235
U
undergoes controlled nuclear fission to
54
142
Xe
^{142}_{54}\text{Xe}
54
142
Xe
and
38
90
Sr
^{90}_{38}\text{Sr}
38
90
Sr
.
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