45107cbe_s___Physics___Particle_Physics__Answer
[Date Answered] May 4, 2011 [Questioner (age, location)] rin(romania) [Question] When uranium atoms split the neutrons clashing eachother release the energy to make the atomic bomb, but how come so much energy from such a small piece of uranium? [Answer] 
This is a perfect example of Einstein's equation E = m•c2. Although the excess mass m of the un-split uranium is small, the factor c is so large that the energy release E is also large. The physical reason is that uranium is less stable than what it splits into.
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