ch13-p024 - 24. (a) What contributes to the GmM/r2 force on...

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24. (a) What contributes to the GmM/r 2 force on m is the (spherically distributed) mass M contained within r (where r is measured from the center of M ). At point A we see that M 1 + M 2 is at a smaller radius than r = a and thus contributes to the force: () 12 on 2 . m GM M m
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