Question

a bridge is made from 20 m long iron rods.at tempreture 18°c,the distance between two rods is 0.4cm.up to what tempreture will the bridge be in good shape?

Answer 1

Temperature = 35.4 C

use the formula

0.4/2000 = 11.5 *10^-6(T-18)

T-18 = 0.4/(2000*11.5*10^-6)

T = 18 + 0.1/(2000*11.5*10^-6)

T = 35.4

Answer 2

ᴛ;35.4

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