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Mathematics 20 Online
OpenStudy (anonymous):

http://i1142.photobucket.com/albums/n608/nancylam67/page36110.jpg http://i1142.photobucket.com/albums/n608/nancylam67/IMG.jpg

OpenStudy (anonymous):

t=s/v = 3.84*10^8/3*10^8 = 1s

OpenStudy (anonymous):

density = mass/volume = 8.4.../2.1...=2.1*10^4kg/cm^3

OpenStudy (anonymous):

Thank

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