問題詳情
45. A 50 m bridge is made with segments of concrete. If the linear expansion coefficient is 1.2 × 10-5°C-1, how much spacing is needed to allow for expansion during an extreme temperature change of150 °F?
(A) 2.0 cm
(B) 2.5 cm
(C) 3.0 cm
(D) 3.5 cm
(E) 4.0 cm
參考答案
答案：E
難度：計算中-1
書單：沒有書單，新增