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Re: Momentum, energy and angular momentum cannot be created or destroyed

From Sergio <invalid@invalid.com>
Newsgroups sci.physics
Subject Re: Momentum, energy and angular momentum cannot be created or destroyed
Date 2016-03-31 14:21 -0500
Organization Aioe.org NNTP Server
Message-ID <ndjtc7$has$1@gioia.aioe.org> (permalink)
References <ZJadnYw_CMkg92DLnZ2dnUU7-YOdnZ2d@giganews.com>

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On 3/31/2016 1:21 PM, Sam Wormley wrote:
> Momentum, energy and angular momentum cannot be created or destroyed

>>
>> This can be stated simply, "Momentum, energy and angular momentum
>> cannot be created or destroyed."

hold on,

momentum and angular momentum are vectors, energy is not.

also each of the above can be changed into other forms, and into heat, 
which is both created and destroyed.


so the single sentance is out of context, or needs more support.

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Thread

Momentum, energy and angular momentum cannot be created or destroyed Sam Wormley <swormley1@gmail.com> - 2016-03-31 13:21 -0500
  Re: Momentum, energy and angular momentum cannot be created or destroyed jimp@specsol.spam.sux.com - 2016-03-31 18:33 +0000
  Re: Momentum, energy and angular momentum cannot be created or destroyed Sergio <invalid@invalid.com> - 2016-03-31 14:21 -0500
    Re: Momentum, energy and angular momentum cannot be created or destroyed Poutnik <poutnik4nntp@gmail.com> - 2016-03-31 21:49 +0200
      Re: Momentum, energy and angular momentum cannot be created or destroyed Sergio <invalid@invalid.com> - 2016-03-31 16:03 -0500
        Re: Momentum, energy and angular momentum cannot be created or destroyed Poutnik <poutnik4nntp@gmail.com> - 2016-04-01 07:49 +0200
        Re: Momentum, energy and angular momentum cannot be created or destroyed Timo <timo@physics.uq.edu.au> - 2016-04-01 01:14 -0700

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