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A Flux of 1014 N/m2 · S Is Incident on an

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A flux of 1014 n/m2 · s is incident on an A flux of 10<sup>14</sup> n/m<sup>2</sup> · s is incident on an   foil that is 0.10 cm thick. The density of aluminum is 2.7 * 10<sup>3</sup> kg/m<sup>3</sup>. The number of neutrons reacting with the aluminum is 10<sup>6</sup> n/m<sup>2</sup> · s. The cross section for this reaction is approximately A)  10<sup>4</sup> barn B)  10<sup>-6</sup> m<sup>2 </sup> C)  1.7 * 10<sup>-34</sup> m<sup>2 </sup> D)  6.6 *10<sup>-32</sup> m<sup>2 </sup> foil that is 0.10 cm thick. The density of aluminum is 2.7 * 103 kg/m3. The number of neutrons reacting with the aluminum is 106 n/m2 · s. The cross section for this reaction is approximately


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