problems_II_8

# problems_II_8 - problem_II_8_1.nb [email protected]

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Apply @ Clear, Names @ "Global` " DD ; Off @ General::spell D ; Off @ General::spell1 D ; P = 100; H lb L R1 = 10 ê 2; H in L R2 = 14 ê 2; H in L µ 12 = 0.3; "a L " M = 2 ê 3 µ 12 P R1; Print @ "M = ", M, " lb in" D ; "b L " µ 23 = 3 ê 2M êH PR2 L ; Print @ " µ 23 = ", µ 23 D ; a L M = 100. lb in b L µ 23 = 0.214286 problem_II_8_1.nb 1

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Apply @ Clear, Names @ "Global` " DD ; Off @ General::spell D ; Off @ General::spell1 D ; p = k ê r; int1 = Integrate @ µ pr^2, 8 r, Ri, Ro <D ; M = Integrate @ int1, 8 θ ,0,2Pi <D ; int1 = Integrate @ pr, 8 r, Ri, Ro <D ; L0 = Integrate @ int1, 8 θ ,0,2Pi <D ; rap = M ê L0; M = Simplify @ L rap D ; Print @ "M = ", M D ; M = 1 cccc 2 L H Ri + Ro L µ problem_II_8_3.nb 1
X F n = 0; T sin 2 + ( T + dT ) sin 2 = 2 dN sin α 2 (1) Tdθ = 2 dN sin α 2 (2) X F t = 0; T cos 2 + 2 μdN = ( T + dT ) cos 2 (3) 2 μdN = dT (4) dT T = μ sin α 2 (5) Z T 2 T 1 dT T = μ sin

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problems_II_8 - problem_II_8_1.nb [email protected]

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