Final answer:
To convert 45000 nm to meters, divide the nanometers by one billion (10^9), resulting in 0.000045 meters.
Step-by-step explanation:
The conversion of metric units from nanometers (nm) to meters (m) can be performed by using the conversion factor that 1 nm equals to
m. This factor can also be represented as 1 m = 109 nm. Therefore, to convert 45,000 nm to meters, we divide the number of nanometers by 109:

So, 45,000 nm is equal to 0.000045 meters.