Using scientific notation, it is found that:
67 ns = [tex]6.7 \times 10^{-8}[/tex]s
A number in scientific notation is given by:
[tex]a \times 10^b[/tex]
With the base being [tex]a \in [1, 10)[/tex].
In this problem, the amount is of 67 ns.
Each ns has [tex]10^{-9}[/tex] seconds, hence:
[tex]67ns = 67 \times 10^{-9}s[/tex]
We want the base between 1 and 10(exclusive), hence, we move the decimal digit one digit to the left and add one to the exponent, and the representation is:
67 ns = [tex]6.7 \times 10^{-8}[/tex]s
You can learn more about scientific notation at https://brainly.com/question/16394306