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An excited U* nucleus undergoes fission into two fragments, as shown:
U* →
Ba +
Kr
The following atomic masses are known:
Kr: 91.926270 u
Ba: 143.922845 u
U*: 236.045563 u
Assume, at a given instant, that the two fission fragments are spherical, just barely in contact, and carry spherically symmetric charge distributions. At that instant, what is the electrostatic interaction energy of the two fragments, in MeV? (1 u = 1.6605 × 10-27 kg = 931.5 MeV/c2, 1/4πε0 = 9.0 × 109 N * m2/C2)
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