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Q. 44

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 512

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Short Answer

A 15C, 2.0-cm-diameter aluminum bar just barely slips between two rigid steel walls 10.0 cm apart. If the bar is warmed to 25C, how much force does it exert on each wall?

The accurate answer is

See the step by step solution

Step by Step Solution

Step 1: Description 

A 15C, 2.0-cm-diameter aluminum bar just barely slips between two rigid steel walls 10.0 cm apart.

The young module depicts

Step 2: Finding the result 

The description provided that

From the expression for linear thermal expansion is:

Therefore, the final expansion will be:

The table of 18.4 depicts that the coefficient of linear thermal expansion of Aluminium is almost .

The table of 14.3 depicts that Aluminium's young modules is .

Thus,

Therefore, If the bar is warmed to 25C, the force of , it exert on each wall.

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