# Physics

A man's gold wedding ring has an inner diameter of 2.0cm at 30∘C.

Part A
If the ring is dropped into boiling water, what will be the change in the inner diameter of the ring?

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2. 👎 0
3. 👁 326
1. ΔL =L αΔT =2 •10⁻²•14•10⁻⁶•70=1.96•10⁻⁵m=1.96•10⁻² mm

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