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anonymous
 4 years ago
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anonymous
 4 years ago
Q

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1350922648157:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1350922771112:dwdw:1350922889055:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1350923517490:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0R^3 (lambda) d(theta)?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0correct ... the shape of ring goes all the way round to 360 and varies with d(theta) ... so what do we do?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1350923841372:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0whole ring? length = r theta I = r^3 theta (lambda)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0no ... this varies with theta ... so we integrate it along 0 to 2 Pi

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1350924064331:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so what is the final answer?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yep .. what would (lamda) (2 pi) R = ??

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Wait.. I was partly right.. length = r theta I = r^3 theta (lambda) One more condition there is theta = 2 pi I = r^3 (2pi) lambda

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yeah the moment of Inertia of ring is MR^2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1350924842776:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1350924935079:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Wait, surface / unit area? What's that?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0sorry ... mass per unit area ... typo.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Mass = sigma (area) = sigma (pi)[(r_2)^2(r_1)^2) = sigma (pi) (dr) (2r+dr) Have to go now. I'm sorry!

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1350925702449:dw
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