Social Studies, 17.02.2021 21:20 brinicole1011
1. La longitud es 100 m cuando la temperatura es 20 °C.¿En cuanto aumenta su longitud en un día de verano en que la temperatura es 40 °C (apuente =2×10 -4 / °C ) ?
Answers: 1
![L_f = L_{o} \cdot [1+\alpha\cdot (T_{f}-T_{o})]](/tpl/images/1125/3837/1089b.png)
(1)
- Longitud inicial del elemento, medida en metros.
- Longitud final del elemento, medida en metros.
- Coeficiente de expansión lineal, medido en 
.
, 
- Temperaturas inicial y final del elemento, medidas en grados Celsius.
, 
, 
y 
, entonces la deformación térmica es:![L_f = (100\,m)\cdot \left[1+ \left(2\times 10^{-4}\,\frac{1}{^{\circ}C} \right)\cdot (40\,^{\circ}C-20\,^{\circ}C)\right]](/tpl/images/1125/3837/92e40.png)
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1. La longitud es 100 m cuando la temperatura es 20 °C.¿En cuanto aumenta su longitud en un día de v...
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