Hello, babygirl,Originally Posted by babygirl
let t be the temperature of a solid in °C. Then the length of it in m with respect to temperature in °C is
k is a constant, describing the change of length per Kelvin. For steel it is .
With your problem you got:
The total change of length at a length of 10 m is:
Remark: The temperature of a railroad track in Middle Europe rates from -60°C up to 90°C)