A body of constant heat capacity c, and initial temperature T is placed in contact with a heat reservoir at temperature T2 and comes to thermal equi- librium with it. IfT,>T1, calculate the entropy change of the universe and show that this is always positive.

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Q: What unit is the 0.000931 ?

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A: This question is from classical mechanics.

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A: Given: How do you know that it is -1.2? What determines the sign?

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A: Basics of CALCULATION.

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Buckling of columns

The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.