Calculate the average density of nuclei

Dicembre 29th, 2020 | by Marcello Colozzo |

average density of nuclei


Exercise of Nuclear reactor physics by ing. Giorgio Bertucelli.


Calculate the average density of nuclei in g cm³. If the earth has a mass of 5.98·10kg and an equatorial radius of 6378km, what radius would it have if it were made entirely of closely packed nuclei (one third voids)?


Solution
The compact volume of the earth would be 2/3 of the current volume:


then the average density would be

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