Answer to Question #113032 in Molecular Physics | Thermodynamics for Arvin

Question

The bay radio masts are 150 m long and are made of steel. How much longer are they in the summer heat at +30 ° C than in the winter frost at -30 ° C?

Answer 1

$$\Delta l=l\alpha \Delta T$$

$$\Delta l=(12\cdot10^{-6})(150)(60)=0.11\ m$$