q2: what is the effect of the radius of the metal tube on its linear thermal expansion?
q2: what is the effect of the radius of the metal tube on its linear thermal expansion?
Answer
Explanation:
Step1: Recall linear - thermal - expansion formula
The linear thermal expansion formula is $\Delta L = L_0\alpha\Delta T$, where $\Delta L$ is the change in length, $L_0$ is the original length, $\alpha$ is the coefficient of linear expansion, and $\Delta T$ is the change in temperature. For a metal tube, the linear expansion mainly depends on its length, the coefficient of linear expansion of the material, and the temperature change. The radius of the metal tube does not directly appear in the linear - thermal - expansion formula.
Step2: Analyze the relationship
Since the radius is not part of the $\Delta L = L_0\alpha\Delta T$ formula, the radius of the metal tube has no direct effect on its linear thermal expansion.
Answer:
The radius of the metal tube has no direct effect on its linear thermal expansion.