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Physics: Post your doubts here!

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Report me for what? Saying ily to someone I don't even know? :ROFLMAO:
Oh and ***amd*** there is no such thing as being 'deserved' to be argued with :) ( And just so you know, The annoying language part cracked me up :p)
please finish this thing u got it what u wanted !!!! and u cant get good grades without studying !!!!!!
 
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And that language is allowed for Muslims isn't it?
This shows how immature you really are :)
you are no one to judge why I did that.
ok sorry for this post. I actually lost my temper.
and this probably is the most immature thing ok even if u ppl think its wrong of her to say that then wht ur doing is even more immature.........
sorry for that.
 
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formulas u will have to use..
attenuation=10 x log(P in/P out)
signal to noise ratio=10 x log (P out/P noise)
attenuation per uni length=total att/total lenth

do as follow
1 find power out......using secong formula.. 30=10 x log(p out/6.5x10-6) so p out=6.5x10-3W
2.find attenuation using formula 1 att=1o x log(26x10-3/6.5x10-3) so attenuation=6.02dB
3 finally find length using formula 3 length= 6.02/0.2=30 km
for the 1st step the formula ok is understood then u make pout the subject then wht has to be done i dont get then how to get it plz elaborately explain the first step
sma786 can u xplain it?
 
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