Physics, asked by himanshub5239, 1 year ago

What will happen if adjacent rails doesnt have gaps?

Answers

Answered by Anonymous
1
So that there is enough margin for the tracks to expand and contract due to the temperature changes. 
If that gap is not left then the tracks might have enormous stress in them while expanding due to heat. Which can damage them.


This process is known as Thermal Expansion:

Thermal expansion is the tendency of matter to change in volume in response to a change in temperature,[1] through heat transfer.
 When a substance is heated, the kinetic energy of its molecules increases. Thus, the molecules begin moving more and usually maintain a greater average separation. Materials which contract with increasing temperature are unusual; this effect is limited in size, and only occurs within limited temperature ranges (see examples below). The degree of expansion divided by the change in temperature is called the material's coefficient of thermal expansion and generally varies with temperature.

Answered by incrediblekaur
2
then they will crash with each other
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