## Conceptual Physics (12th Edition)

Let 1 kg of uranium-235 undergo fission. The mass that is transformed to energy is 0.001 kg. The energy released by this loss of mass is $E = mc^{2} = (0.001 kg)(3.00 \times 10^{8} m/s)^{2} = 9.0 \times 10^{13} J$. This equals $9.0 \times 10^{7} MJ$. Multiply this energy by 0.03 dollars per MJ. The energy released is worth 2.7 million bucks.