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How Much Does a 178-M Long Concrete Slab on the Mackinac

Question 36

Multiple Choice

How much does a 178-m long concrete slab on the Mackinac Bridge contract when going from 39 ∘\circ C (hot summer day) to -35 ∘\circ C (cold winter night) ? The linear expansion coefficient for concrete is 10-5/ ∘\circ C.


A) 0 m
B) 0.04 m
C) 0.13 m
D) 0.93 m
E) 4.91 m

Correct Answer:

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