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    Fermi and Szilard Achieved a Critical Mass by Using a Pile
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Fermi and Szilard Achieved a Critical Mass by Using a Pile

Question 53

Question 53

Multiple Choice

Fermi and Szilard achieved a critical mass by using a pile of uranium and graphite that resulted in a self-sustaining fission reaction lasting _____ minutes.


A) 2.5
B) 5
C) 1.5
D) 4
E) 4.5

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