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type 1a supernova are the thermonuclear explosions of accreting white dwarfs that approach the Chandrasekhar limit....

type 1a supernova are the thermonuclear explosions of accreting white dwarfs that approach the Chandrasekhar limit. In this problem, consider an exploding white dwarf of mass 1.4 solar masses and radius 10^4km

the atomic mass for nickel-56 is 55.942132 amu. assuming the entire white dwarf is nickel 56 how much energy is released in this explosion?
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