A bridge is made with segments of concrete 50 m long.If the linear expansion coefficient is 12 *10 ^- ⁶ ($\degree$C) ^- ¹,how much spacing (in cm)is needed to allow for expansion during an extreme temperature change of 150$\degree$ F? A)10 B)2.5 C)7.5 D)5.0 E)9.5

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Quizplus · Accepted Answer

The expansion can be calculated using the formula: ΔL = α * L * ΔT. Here, α = 12 x 10^-6 /°C, L = 50 m, and ΔT = 150°F = 83.33°C. Converting the expansion to cm, ΔL = 12 x 10^-6 * 50 * 83.33 = 0.05 m = 5.0 cm.

A Bridge Is Made with Segments of Concrete 50 M °\degree°

A Bridge Is Made with Segments of Concrete 50 M $\degree$