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    Phase and Group Velocities: What it Represents & Relation to Uncertainty Principle

    Thanks. I have seen something similar before, but that is a nice animation. Still confused about the things I mentioned above. Even if we are talking about the electron as a matter wave, I don't have any context with how the phase velocity is significant though. To me right now, it is...
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    Phase and Group Velocities: What it Represents & Relation to Uncertainty Principle

    I am trying to understand phase and group velocities in a few different contexts, but require some assistance. From pictures I have seen how these speeds can be different, and I have come to understand that the phase velocity can be greater than the speed of light because it does not actually...
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    Solar vs Lunar Tides

    I have a question about the effects of solar and lunar tides. I know that the effect of lunar tides is twice that of solar. However when I calculated the force of gravity of the Sun on the EArth vs the Moon on Earth using F=GmM/r^2 the force due to the Sun was much greater. Can anyone help me...
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