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Physics 9 Online
OpenStudy (christos):

Can you help me solve (B) ? https://www.dropbox.com/s/p824cth4ditbihg/Screenshot%202013-11-01%2020.03.54.jpg

OpenStudy (anonymous):

you should first find what an iron atom' volume is. Then you can use the formula for finding volume a sphere. You will get the radius for an iron atom then you should multiply it by 2.

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