At 20 $\degree$ C an Aluminum Ring Has an Inner Diameter of 5

question 58

Multiple Choice

At 20 $\degree$ C an aluminum ring has an inner diameter of 5.000 cm,and a brass rod has a diameter of 5.050 cm.Keeping the brass rod at 20 $\degree$ C,which of the following temperatures of the ring will allow the ring to just slip over the brass rod? (a_Al = 2.4 x 10^-5 /C $\degree$ ,a_brass = 1.9 x 10^-5/C $\degree$ )

• A)111 \(\degree\)C
• B)236 \(\degree\)C
• C)384 \(\degree\)C
• D)437 \(\degree\)C

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