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A brass plug is to be placed in a ring made of iron. At 20...

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Physics

A brass plug is to be placed in a ring made of iron. At 20 ∘C∘C,the diameter of the plug is 8.754 cmcm and that of the inside ofthe ring is 8.739 cmcm .

1.They must both be brought to what common temperature in orderto fit?

Express your answer using two significant figures.

2.

What if the plug were iron and the ring brass?

Express your answer using two significant figures.

Answer & Explanation Solved by verified expert
3.8 Ratings (604 Votes)
a Just slip over the rod means La Lb after some temperature change Change in length is given by dLa LaalphaadT dLb LbalphabdT La    See Answer
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