anonymous
  • anonymous
f=c/wavelength. Please help, not sure how to calculate f. c= 3.00 x 10^8 m/s wavelength = 268nm
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
plug in the values you have in the formula..
anonymous
  • anonymous
but i get a giant number, and not sure what I do after that.. i need to figure out f=____hz
anonymous
  • anonymous
f=3.00x(10^8)/268nm

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anonymous
  • anonymous
I feel like I am missing a step or something.
anonymous
  • anonymous
you did not concert the wavelength which is on nanometers into meters..
anonymous
  • anonymous
can you do that or should i help with that??
anonymous
  • anonymous
2.68 x 10^7 ?
anonymous
  • anonymous
10^-7?
anonymous
  • anonymous
no..... nano = 1* 10^-9
anonymous
  • anonymous
does that help??
anonymous
  • anonymous
im a little confused.
anonymous
  • anonymous
@boomerang285 are you there?
anonymous
  • anonymous
where??
anonymous
  • anonymous
I really don't understand this.
anonymous
  • anonymous
I don't get how to plug in the numbers, when I have to change them as well. 268 nm changes to meters right? is it not 268nm= 2.68 x 10^-7m?
anonymous
  • anonymous
to convert the wavelength from nanometers to meters you need to multiply by 10^-9
anonymous
  • anonymous
nano in its number state is 10^-9.....so nm=10^-9m
anonymous
  • anonymous
ok
anonymous
  • anonymous
no since nano is 10^-9, it is supposed to be 2.68 x 10^-9m
anonymous
  • anonymous
oh ok.... makes sense, so then the equation (f=c/wavelength) has those values in it?
anonymous
  • anonymous
yes....so what do you get after you plug in the numbers??
anonymous
  • anonymous
this is the tricky part for me.. I dont know how to correctly work it out
anonymous
  • anonymous
it looks like this though right? 3.00 x 10^8 / 2.68 x 10^-9
anonymous
  • anonymous
yes...
anonymous
  • anonymous
ok
anonymous
  • anonymous
80.4? probably way off...
anonymous
  • anonymous
input what you have on your calculator...
anonymous
  • anonymous
that is not what i got..
anonymous
  • anonymous
0.1119402985
anonymous
  • anonymous
http://www.wolframalpha.com/input/?i=%283+x+10%5E-8%29%2F%282.68+x+10%5E-9%29
anonymous
  • anonymous
does that help??
anonymous
  • anonymous
yes, i just didnt have the negative for the 10^-8
anonymous
  • anonymous
oh okay...you have to be careful next time.
anonymous
  • anonymous
do you get it now??
anonymous
  • anonymous
yes, so obviously I don't put in all the numbers.. so f = 11.15?
anonymous
  • anonymous
yes...
anonymous
  • anonymous
thank you!
anonymous
  • anonymous
yw!

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