How large an expansion gap should be left between steel...

How large an expansion gap should be left between steel railroad rails if they may reach a maximum temperature $35.0^{\circ} \mathrm{C}$ greater than when they were laid? Their original length is $10.0 \mathrm{m}$.

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Key Concepts

Thermal Expansion

Thermal expansion refers to the physical phenomenon where materials increase in size when heated due to the increased vibrations of their constituent particles. This concept is vital for understanding how structures accommodate changes in temperature to avoid stress or damage.

Coefficient of Linear Expansion

The coefficient of linear expansion is a material property that quantifies the relative change in length per unit temperature change. It is essential for calculating how much a material will expand or contract under temperature variations, and it plays a crucial role in engineering applications where thermal effects are significant.

Expansion Gap

An expansion gap is a deliberate space or allowance provided in the design of structures to accommodate the volumetric changes of materials due to temperature fluctuations. This gap prevents the buildup of stress and potential damage by ensuring that the material has room to expand and contract without interfering with adjacent components.

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