Respostas

2013-08-20T17:11:58-03:00
Coeficiente de Dilatação Superficial = beta

beta = 2 alpha

beta = 2 * 12*10^-6°C^-1

1200cm² = 12m²


/\S = So * beta * /\T

/\S = 12 * 24 * 10^-6 * 60

/\S = 17.280 * 10^-6

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/\S = 0,01728 m² = 1,728cm² de variação
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