LOL! Do you need a lozenge?
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Quote:
On 2002-04-02 06:27, SimonCB wrote:
BA doesn't mention centrifugal force in the explanation the tides on the Earth, due to the moon, which is the problem I have with the explanation.
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The
original post in that other thread mentions that BA says "The Earth feels a gravitational pull toward the Sun and a centrifugal force away away from it." That is what my words, in your quotation, is referring to.
As we've shown with the falling astronauts, it is not necessary to have a centrifugal force to have a tidal force. So, any explanation can include it, or not. The centrifugal force on the Earth is the same on the near side as on the far side as well as on the center--so once you make the center of the Earth the reference point, all centrifugal forces are cancelled.