Asked by DD

if a steel flagpole get 5.1 mm taller when temperature increase by 5.0 degree celsius approximately how tall is the flagpole?
Answered by drwls
Look up the coefficient of thermal expansion of steel. Call it a.

a*L*(deltaT) = 0.0051 meters

Solve for L.
L = 0.0051/(a*deltaT)
"deltaT" = 5 C