Answer :

We have

[tex]1.2\text{ }\times10^{44}\text{ Joules}[/tex]

We need to put this quantity in

a. Kilojoules

we have the next equivalence to convert J to KJ

1000 joules = 1 kilojoule

[tex]\frac{1.2\times10^{44}}{1\times10^3}=1.2\times10^{44-3}=1.2\times10^{41}KJ[/tex]

b. nano joules

we have the next equivalence to convert J to nJ

1J = 1000000000 nJ= 1x10^9 nJ

[tex](1.2\times10^{44})(1\times10^9)=1.2\times10^{53}nJ[/tex]

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