I need help converting 294.5nm to cm

2 answers

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