A bridge is made with segments of concrete 50 m long. If the linear expansion coefficient is 12 *10-6 ($\degree$C)-, how much spacing (in cm) is needed to allow for expansion during an extreme temperature change of 60$\degree$ C?
A)10
B)3.6
C)7.5
D)5.0
E)9.5

Question

Quizplus · Accepted Answer

To calculate the spacing needed for expansion, we can use the formula:

spacing = expansion coefficient × length × change in temperature

Convert the length to centimeters:

50 m = 5000 cm

Plug in the values:

spacing = (12 × 10^-6) × 5000 cm × 60°C = 3.6 cm

Therefore, the answer is (B) 3.6 cm.

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

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