Respostas

2014-05-27T23:17:08-03:00
/\L = Lo * alpha * /\t
/\L = 40 * 24*10^-6 * (60-20)
/\L = 16*10^2*24*10^-6
/\L = 384 * 10^-4
/\L = 0,0384m

L = Lo + /\L
L = 40 + 0,0384 = 40,0384m (Comprimento Final).
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