To solve this problem we must use the mathematical relations concerning the Power as a function of the energy released in a certain period of time. In other words:
[tex]P = \frac{E}{t}[/tex]
Where,
[tex]E = 8.5*10^{13}J \rightarrow[/tex] Energy
[tex]t = 1*10^{-6} \rightarrow[/tex] time
Replacing this values we have that
[tex]P = \frac{8.56*10^{13}J}{1*10^{-6}s}[/tex]
[tex]P = 8.5*10^{19}W[/tex]
Therefore the average power of the nuclear bomb is [tex]8.5*10^{19}W[/tex]
