Ask Question
30 December, 15:23

A bridge is made with segments of concrete 91 m long (at the original temperature). If the linear expansion coefficient for concrete is 1.2 * 10-5 (◦C) - 1, how much spacing is needed to allow for expansion for an increase in temperature of 56◦F? Answer in units of cm.

+4
Answers (1)
  1. 30 December, 15:29
    0
    change in length is 3.397 cm

    Explanation:

    Given data

    long = 91 m = 9100 cm

    coefficient for concrete (a) = 1.2 * 10-5 (◦C) - 1

    temperature = 56 F = (56 * 5/9) ◦C

    to find out

    how much spacing is needed to allow

    solution

    we know allow space is given by this formula

    change in length = coefficient for concrete * given length * temperature ... 1

    put all value in equation 1

    change in length = 1.2 * 10-5 * 9100 * (56 * 5/9)

    change in length = 3.397 cm

    so change in length is 3.397 cm
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A bridge is made with segments of concrete 91 m long (at the original temperature). If the linear expansion coefficient for concrete is 1.2 ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers