Quantum entanglement is the norm, is it not? All that exists in reality is the wave function of the whole universe, true? So how come we can blithely talk about the quantum state of subsystems if everything is entangled? How is it even possible to consider subsystems in isolation? Anything less than the quantum state of the whole universe at once. Enlighten me.
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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?
I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...
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I have performed experiments in my college laboratory on Newton's rings to find radius the of curvature of the convex lens used. I alway...
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In many practical applications, one can consider the Earth-Centered Inertial ( ECI ) reference frame approximately as an inertial reference ...
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The electric current is a flow of electrons, which have mass (small, but it is still a mass). So, considering a planar circuit, do the prope...
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