Question

how the einstein rock paradox is happening​

Answer 1

Answer:

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Both heading in opposite directions. Because the initial particle had spin 0, the sum of the two new particle spins must equal zero. Again, according to the Copenhagen interpretation of quantum mechanics, until a measurement is made, neither particle has a definite state.

Answer 2

Answer:

When the two quantum systems interact in such a way as to link both their spatial coordinates in a certain direction and also their linear momenta (in the same direction), results in “entanglement”.