How are railroad tracks laid?

Steel railroad tracks of length L = 18.00 m are laid at 10.0° C. How much space should be left between the tra?

  • Steel railroad tracks of length L = 18.00 m are laid at 10.0° C. How much space should be left between the track sections if they are to just touch when the temperature is T = 46.0° C?

  • Answer:

    Length change = Original length x alpha x delta T α steel = 13 10^-6 °C ΔL = L° α Δt = 18 * 13 10^-6 * (46 -10) = 8424 10^-6 m = 0.8424 cm Space between railroad = 0.8424 cm http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thexp.html Goodbye

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