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Mathematics 12 Online
OpenStudy (quickstudent):

Can you please check my answers?

OpenStudy (quickstudent):

OpenStudy (quickstudent):

@SapphireMoon

OpenStudy (sapphiremoon):

Umm, haven't done COM yet, but it looks fine at a glance? Sorry, I'm kind of trying to be in physics class, lol. @quickstudent

OpenStudy (jfraser):

the first two seem alright to me. i didn't go through the whole thing, but if you use the same approach for every question then everything should come out ok

OpenStudy (jfraser):

can you explain to me quickly how you got the total mass defect in amu?

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