Calcule o coeficiente linear do material que constitui a placa. R:8,0.10^-6 ºC
(Af − Ai) = A0 x 2a x (Tf − Ti)
(1000,8 − 1000,0) = 1000,0 x 2a x (50 − 0)
0,8 = 1000 x 100 x a
8/10 = a x 10^5
=> a = 8x10^−6
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(Af − Ai) = A0 x 2a x (Tf − Ti)
(1000,8 − 1000,0) = 1000,0 x 2a x (50 − 0)
0,8 = 1000 x 100 x a
8/10 = a x 10^5
=> a = 8x10^−6