Re: [Phys-L] conserved momentum thru gas...

[O A <omarakhtar01@gmail.com>]

Thank you for the response.

To try and be more clear:

how is the atmosphere keeping up with the rotational velocity of the
spinning earth? This would neccesarily mean the same angular velocity but a
greater linear velocity at, say 100km above solid earth. Again though,
that's assuming the earth/atmosphere 'system' is 1 frame of reference (not
2 separate).

My goto was gravity as well, but this answer had some weaknesses (to me),
so: I asked here : )

-Omar

On Sun., Dec. 18, 2022, 7:45 a.m. Prof. Keith S. Taber via Phys-l, <
phys-l@mail.phys-l.org> wrote:

> On 17/12/2022 21:42, O A via Phys-l wrote:
> > How is conservation of momentum 'transferring' through scores of miles of
> > gas?
>
> Not sure I fully understand the question, but the molecules collide,
> which does not change the total momentum. Yet, there is another factor
> to consider. Gravity. This provides the centripetal force acting on the
> molecules so that there is an interaction to transfer momentum and
> change their velocity.
>
> Is that what you were thinking?
>
> Keith
>
> --
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> Dr. Keith S. Taber
>
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>
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