Groups > sci.physics.relativity > #479339

Re: the famous formula

From	Ejí Utorka <edew@aewedoc.cl>
Newsgroups	sci.physics.relativity
Subject	Re: the famous formula
Date	2018-12-08 16:05 +0000
Organization	Aioe.org NNTP Server
Message-ID	<pugq4s$1dms$2@gioia.aioe.org> (permalink)
References	(2 earlier) <38b03482-19b8-f0e3-1c69-5d00ece928fb@PointedEars.de> <g6v2h6Fb0lhU1@mid.individual.net> <pue8qj$hd1$1@dont-email.me> <g71to8Fu610U1@mid.individual.net> <pugpjb$fbf$1@dont-email.me>

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Libor Striz wrote:

> Thomas Heger <ttt_heg@web.de> Wrote in message:
>> Am 07.12.2018 um 17:57 schrieb Libor Striz:
>>> Work  is a scalar, not a vector.
>>> dW = vec_F . d(vec_L)
>>> W = path integral of dW along path L.
>>> dW as a dot product of 2 vectors is a scalar.
>>> 
>> I do not regard a distance as a vector.
> 
> Neither do I. But the infinitesimal path is, especially on context of
> the definition of the work  diferential as scalar product of 2 vectors 
> dW = F . dL = |F| * |dL| * cos(fi)
> Where fi is the angle between vector of force and infinitesimal
>  vector of path.

dL is the vector, not the L, One more proof on your incompetency and the 
lack of education. You just brought your country in eternal shame. Without 
the bulgarians you would be speaking german.

Thread

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