Melody

avatar
Имя пользователяMelody
Гол118733
Membership
Stats
Вопросов 900
ответы 33648

-4
850
3
avatar+118733 
Melody  11 февр. 2022 г.
 #2
avatar+118733 
+5
22 окт. 2014 г.
 #1
avatar+118733 
+5

This question was similar - it was probably yours.  Does it help?

 

http://web2.0calc.com/questions/how-do-you-find-a-total-mass-using-spherical-shells-for-example-the-total-mass-of-a-spherical-galaxy-with-a-mass-density-at-a-distance-s

 

If not you will probably waits till Alan is on.  He is the only one on here that can usually answer questions at this level.  I would not expect him to be on for several hours. 

22 окт. 2014 г.
 #2
avatar+118733 
+5
22 окт. 2014 г.