Suppose that at room temperature, a certain aluminum bar is 1.0000 m long. The bar gets longer when its temperature is raised. The length l of the bar obeys the following relation: l=1.0000+2.4×10−5T, where T is the number of degrees Celsius above room temperature. What is the change of the bar's length if the temperature is raised to 16.1 ∘C above room temperature?

The change of the bar's length is

Explanation:

The bar length is a function of temperature T above room temperature:

So, if we evaluate at T= 16.1 C above room temperature

Now we can find the change of the bar length with the difference of L and Lo (the length at room temperature)

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation:

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