ਰਗੜ: ਰੀਵਿਜ਼ਨਾਂ ਵਿਚ ਫ਼ਰਕ

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==ਬਾਹਰਲੇ ਜੋੜ==
*[http://www.roymech.co.uk/Useful_Tables/Tribology/co_of_frict.htm Coefficients of Friction] – tables of coefficients, plus many links
*[http://www.physclips.unsw.edu.au/ Physclips: Mechanics with animations and video clips] {{Webarchive|url=https://web.archive.org/web/20070601020244/http://www.physclips.unsw.edu.au/ |date=2007-06-01 }} from the University of New South Wales
*[http://books.google.com/books?id=WDll8hA006AC&pg=PT2503&lpg=PT2503 CRC Handbook of Chemistry & Physics – Values for Coefficient of Friction]
*[http://chain-guide.com/basics/2-3-1-coefficient-of-friction.html Characteristic Phenomena in Conveyor Chain]