- #1
mg1977
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Homework Statement
A steel rule is calibrated for meauring lengths at 20.00 C. The rule is used to mesure the length of a Vycor glass brick; when both are at 20.00 C the length is 25.00cm. What is the length of both the rule and the brick when at 80.00 C
Homework Equations
coef of glass a=.75 *10^-6K
coef of steel a=12*10^-6 K
The Attempt at a Solution
.75*10^-6K *60.0 (the diff of Temp)*25.0 (L inital)after this I am confused