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Brit412
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Homework Statement
A steel plate has a circular hole with a diameter of 1.000 cm. In order to drop a Pyrex glass marble 1.003 cm in diameter through the hole in the plate, how much must the temperature of the system be raised? (Assume the plate and the marble always have the same temperature)
Homework Equations
∆L= alpha L(0) ∆T
The Attempt at a Solution
Use the above equation for both the marble and plate, but I don't know what temperature to use for ∆T