Answer
$4.75 \times 10^{-10} m$
Work Step by Step
We know that the base unit is the meter. Thus:
$475 \times 10^{-12} m$
To convert to scientific notation, move the decimal to the right or left, counting the number of times that you do so, until you get a number that is at least 1 but that is less than 10. If you moved the decimal right, the number of times the decimal is moved will be negative, while moving left yields a positive number. Then, raise 10 to that number. This gives:
$4.75 \times 10^{-10} m$
