Breakedown of common sense and inertial ccordinate systems

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1. Let us consider a molecule with almost "zero" binding energy. Why does every textbook declare that it should be a molecule if we accelerate it to some high velocity? Why shouldn't it dissociate at some velocity.
2. Inversly. Consider a molecule moving with some velocity. Why it couldn't dissociate at zero velocity?

3. Why such questions? May a molecule size be a length unit? And binding energy energy unit?

Accelaration always change the state of the system. How is it, that after acceleration the inertial system, connected with molecule, is equivalent to initial nonmoving system?

Why so childish hypothesis is accepted and adopted?
 
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Minich said:
Why so childish hypothesis is accepted and adopted?
Because it agrees with every experiment yet devised to test it.
 

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