You don't.
Use c = f x wavelength and convert 3.76 micrometers (wavelength) to meters (wavelength).
1 micrometer = 1 x 10^-6 meters
i know that i have to use the equation c = frequency x wavelength and that c = 2.998 x 10^8 m/s. how do i convert that to µm/s?
I think the answer will be 7.99 x 10^13, how do i find the units?
Use c = f x wavelength and convert 3.76 micrometers (wavelength) to meters (wavelength).
1 micrometer = 1 x 10^-6 meters
3.75 * 10^- something
distance = rate * time
so
time = distance/rate
time for one wave length to pass you =
3.75 * 10^-something/3*10^8
number that pass per second = frequency = 1/that time
so
frequency = 3*10^8/3.75*10^-something
= .8 * 10^(8+something) cycles/second or Hertz
= 8 * 10^(9+somthing)
if 9 + something = 13
then something is 4
so that original wave was 3.75*10^-4 meters long
= 8 * 10^(7+somthing)
if 7 + something = 13
then something is 6
so that original wave was 3.75*10^-6 meters long