@Action80. A system can comprise several entities. For example the Joule Experiment, which you sometimes quote, comprises a cylinder, a gas, and (depending on the form used) a piston. All Markjo is suggesting, and which you apparently find derisible, is that some of these components within the sysem can form a force-pair. The system as a whole is not "acting against itself", but 2 independant entities within the CLOSED system acting against each other.
More cosigning of the gaslighting. Since you guys like this site so much:
https://physics.stackexchange.com/questions/419854/why-an-internal-force-cannot-move-a-closed-system-externallyYou guys have been claiming over and over again the combusted gas does the work of moving the rocket inside the combustion chamber, which is just pure bullshit.
A closed system cannot form a force with itself.
Whilst I'm here, can I ask what you believe the nature of the "plume" to be? By that, I mean is it a gas, does it have substance, does it have mass? Would you agree that it is formed from the exhaust material of the rocket motor? Would you agree that, as it is constantly being generated by the motor, that it must be dispersing at an equal rate? Where is it going?
Of course the plume is exhausted gas. Of course it is being dispersed out the back at a set rate governed by the exhaust nozzle.
Remember just a day or so ago when you made the asshatted claim that the muzzle blast has nothing to do with the recoil on a rifle, shotgun, etc.? I mean, I cannot believe you made such an obviously stupid claim, but here it is again in all its wonder:
A rifle cartridge is, and remains, a closed system; bullet goes one way, case and rifle go the other. Force pair. Muzzle blast irrelevant.
Aside from being a stupid claim, let's examine what happens when you happen to put a brake on:
https://www.silencercentral.com/blog/how-much-does-muzzle-brake-reduce-recoil/#:~:text=A%20muzzle%20brake%20is%20a,the%20muzzle%20behind%20a%20bullet.
If you read that information you will see what happens when you
diffuse the escaping gas (i.e., muzzle blast) on the end of the barrel. Recoil is reduced.
When gas is released to vacuum, guess what happens to that gas? Ah, yes...it becomes
absolutely diffused! No ability for an opposite reaction to occur.
Finally, and this is not part of the debate though it's something another couple of people have mentioned; I've no idea of your education level, nor indeed of any of the correspondents on this thread with the possible exception of RonJ who, like myself, says he is a Licensed Aircraft Maintenance Technician. What I believe, however, is that everyone debating with you is expressing genuinely held opinions.
When the opinion is baseless and without merit, I do not care. I will call it bullshit and state very clearly why it is bullshit.
Some people may have misunderstood what they have learnt, and everyone seems to have misread what you have written, to the extent that we talk BS, make false claims, lie, strawman and gaslight. You, on the other hand, are a paragon of truth, despite making repeated claims about the voracity of the "plume" thing, and how it is widely accepted by jet engine manufacturers and your nephew (though entirely without any citations to that effect).
Without exception I, and the other correspondents, have treated you with utmost respect. Like a closed system, it would be nice if this were recipricated.
I guess "treating others with respect," must entail making false claims about how jets and rockets, and rifles accomplish motion and experience recoil.
I wonder if the disrespect and aggression shown in your replies is founded in a lack of confidence in your stated opinions.
Calling out obvious bullshit, lying, and gaslighting is absolutely, totally, 100 percent ! ! !,
respectful behavior.
I do not care whether you like it or not.
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