Question

The distance between the sun will exhaust all of its energy in about ten billion years. By that time, it will have radiated about 1.2x10^-44(joules) of energy. Express this amount of energy in kilojoules

Answer 1

Answer:
`1.2(10)^(-47) kJ`

Step-by-step explanation:

1 Joule (
`1kJ`) is equivalent to
`10^(3)J`. So, we have to make the conversion:

Joules KiloJoules

`1kJ` ----
`10^(3)J`

? ----------
`1.2(10)^(-44)J`

`1.2(10)^(-44)J (1kJ)/(10^(3)J)=1.2(10)^(-47) kJ`