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Think about this.
What if instead of an electromagnet and a permanent magnet, what if we had two electromagnets?
And say they are both switched on at the same time.
(I know that “simultaneous events at a distance” can be problematic to verify, but in a thought experiment we can stipulate that they are.)
So, in the phase where they become attracted to one another there is symmetry.
However, if one is then switched off before the other, we get asymmetry.
And then later when the second one is then switched off that asymmetry persists given that the first electromagnet has already been switched off and so whether the second electromagnet remains on or is switched off is irrelevant and has no effect on it (to the already switched off one).
In other words, when the two electromagnets are turned on at the same time we get the same attraction by each one towards the other (Third Law cool). However, when one is switched off before the other then the switched off one loses its attraction towards the other while the other remains attracted to the switched off one (Third Law not cool). And we never get this asymmetry in the opposite direction back because the already switched off one is not affected by the other one whether it remains on or is also eventually switched off too.
Yes? No?
How do we get cool with Newton’s Third Law in this situation?
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