I need help converting 294.5nm to cm

You should know or look up:

1 nm = 1x10^-9 m
1 cm = 1x10^-2 m
Using the above:
(294nm)(1x10^-9 m/nm) = ?___m
(?---m)(1 cm/1x10^-2m)

A nanometre (nm) is very small, equal to one 10-9 m.

To convert nanometre to cm (1/100 m), multiply the value by the ratio 100/10-9.
294.5 nm
= 294.5 * (100/10-9) cm
= 294.5*10-7 cm
= 2.945*10-5 cm

To convert from nanometers (nm) to centimeters (cm), you need to remember that there are 100 centimeters in 1 meter, and 1 meter is equivalent to 1 billion nanometers. So, to convert 294.5 nm to cm, you can follow these steps:

Step 1: Convert nm to meters.
To do this, divide the value in nanometers by 1 billion (1,000,000,000).
294.5 nm / 1,000,000,000 (nm/m) = 0.0000002945 meters

Step 2: Convert meters to centimeters.
Multiply the meters value by 100 to convert to centimeters.
0.0000002945 meters * 100 cm/m = 0.00002945 cm

Therefore, 294.5 nm is equal to 0.00002945 cm.