A typical nuclear power plant converts 0.01% of the mass of its fuel into energy through nuclear reactions. how much fuel would be needed to power an average city for one day?

The computation for the power needed by an average city for one day would include determining the given values of energy equal to 8.5*10^-5 J and speed of light equals 3*10^8 m/s. Therefore, to find the power required by an average city, the solution is as follows:

E = (m/0.01) * (3*10^8 m/s) ^ 2

The result of the equation would then yield the power required.