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Re: [Phys-L] TWO QUESTIONS



1) what I had in mind was a situation in which the mass of the Sun increase (or decreases) suddenly, for some unspecified reason). But the change is not large enough to cause a significant change in planetary radia.


You’re dreaming. See:

http://scitation.aip.org/upload/AAPT/TPT/Physics/dec2009.pdf

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Carl E. Mungan, Professor of Physics 410-293-6680 (O) -3729 (F)
Naval Academy Stop 9b, 572C Holloway Rd, Annapolis MD 21402-1363
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