Answers: 1
![A_{f} = A_{o} \cdot [1+2\cdot \alpha \cdot (T_{f}-T_{o})]](/tpl/images/1097/5317/f8e28.png)
(1)
, 
- Áreas inicial y final de la placa, medidas en metros cuadrados. 
- Coeficiente de expansión lineal, medido en 
.
, 
- Temperaturas inicial y final de la placa, medidas en Kelvin.
, 
, 
y 
, entonces el área final de la placa es:![A_{f} = (15\,m^{2})\cdot \left[1+2\cdot \left(23\times 10^{-6}\,\frac{1}{K} \right)\cdot (288\,K-329\,K)\right]](/tpl/images/1097/5317/a4fe2.png)
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A una temperatura de 329°K una placa de aluminio tiene un área de 15 m2, si su temperatura disminuye...
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