Respostas

2014-04-08T20:52:34-03:00

A = 2. 1.10^-5.20 = 40.10^-5 = 0,0004 m 
 B = 2.2.1.10^-5.20 = 80.10^-5 = 0,0008 m
 
 A = Li.a.Δθ = L.a.Δθ 
 B = Li.a.Δθ = 2L . a . Δθ

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