Science > Physics > the first equation in general physics 2 that i have is incorrect
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Science > Physics |
| User: |
"dedanoe" |
| Date: |
14 Feb 2006 02:27:25 PM |
| Object: |
the first equation in general physics 2 that i have is incorrect |
in general physics 2 from the authors pechijare and bahchevangiev
published by st. kiril and methodius university in skopje macedonia the
first equation says: speed of light equals frequency times wave length
and that's how it is in most other textbooks. i say that's not right
but right is: wave length against speed of light equals number of rotes
against frequency equals time. let me explain. first of all counter
part for frequency is not simly Hertz equal to one over second
(Hz=1/sec) but it is certain number of rotes over seconds. one of
apples is not same as one of oranges neither it is same as one of
rotes. exactness is ordered pair of exact amount of certain type and
that's what makes physics exact science unlike the belief that physics
will never change once accepted valid.
http://dedanoe.tripod.com
THE BONE IN YOUR TROWTH
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| User: "Randy Poe" |
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| Title: Re: the first equation in general physics 2 that i have is incorrect |
15 Feb 2006 11:56:30 AM |
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dedanoe wrote:
in general physics 2 from the authors pechijare and bahchevangiev
published by st. kiril and methodius university in skopje macedonia the
first equation says: speed of light equals frequency times wave length
and that's how it is in most other textbooks.
This is true for any wave.
i say that's not right
but right is: wave length against speed of light equals number of rotes
I don't know what you mean by the word "rotes".
against frequency equals time. let me explain. first of all counter
part for frequency is not simly Hertz equal to one over second
(Hz=1/sec) but it is certain number of rotes over seconds.
The inverse of frequency is called in English the "period".
T = 1/f, f = 1/T.
Period means time between successive wave peaks. If the
frequency is 2 Hz, the period is 1/(2 Hz) = 0.5 sec.
I think you are saying that a Hz does not have units of
1/sec, but is 1 (something)/sec.
I think by "rote" you may mean something like "rotation"
or "repetition". So you are saying f*lambda will have
units of "rotations*m/sec". Dimensionally, this is
not correct. 1 Hz means 1/sec. I'm not sure how to
explain better the idea that what you are calling
rotes is "unitless".
- Randy
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| User: "dedanoe" |
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| Title: Re: the first equation in general physics 2 that i have is incorrect |
17 Feb 2006 06:29:31 AM |
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rotes or repetitions or cycles or spins.
they are similar but not necesarily same.
f is in rotes over second while T is in seconds over rote.
n=ft rotes equals frequency times time.
nT=t rotes times period over one rote equals time.
http://dedanoe.tripod.com
physics gone chang-jiang
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| User: "Puppet_Sock" |
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| Title: Re: the first equation in general physics 2 that i have is incorrect |
17 Feb 2006 11:21:40 AM |
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dedanoe wrote:
[rotes angst]
If you insist on including rotes in the frequency, then you also need
to include rotes in the wavelength. As in f in rote/sec, and wavelength
in meter/rote. Then wavelength times frequency is meter/sec.
Do please try to concentrate in class. And consider the possibility
that not every one of the people who is teaching you is an *****.
Socks
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| User: "Eric Gisse" |
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| Title: Re: the first equation in general physics 2 that i have is incorrect |
14 Feb 2006 03:30:24 PM |
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dedanoe wrote:
[snip]
When you find yourself fundamentally agreeing with everything from
relativity down to "general physics" it is time to re-evaluate what you
are doing.
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| User: "dedanoe" |
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| Title: Re: the first equation in general physics 2 that i have is incorrect |
15 Feb 2006 11:24:34 AM |
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i tend to agree but i only wonder if that was an honest statement or do
you have similar problems digesting nowadays physics too.
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