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MIT 6.002 Circuits and Electronics, Spring 2007 19 Online
OpenStudy (anonymous):

Our planet earth is also a type of magnetic , it can attract neutral object towards it but other magnet(bar magnets) only attract another magnet or other magnetic material like iron why?

OpenStudy (anonymous):

the attraction of earth is because of it's great mass ! it's a famous formula\[f=m _{1}m _{2}/r ^{2}\] because of this formula earth atract many of object ! but magnets atttract iron or other magnets because of thair magnetism and the shape of thair atomes

OpenStudy (anonymous):

dude u are confused between gravity and magnetism.

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