Physics, 09.05.2021 08:20, bxymichelle

Question 7 of 10 Why are railroad tracks built with a flexible expansion and contraction joint? A. The two have equal coefficients of linear expansion. O B. The tracks have a smaller coefficient of linear expansion than the ground beneath. O C. The ground beneath has a larger coefficient of linear expansion than the tracks. O D. The tracks have a larger coefficient of linear expansion than the ground beneath.

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Question 7 of 10 Why are railroad tracks built with a flexible expansion and contraction joint? A. T...