
Help with number 10 and 11 please

15. Which exerts more pressure: 25 feet of Acetaldehyde with a specific gravity of 1.59 or 25 feet of water? How did you know? Calculate the pressure.

Please help with 10 and 11 from the attached picture

help me,I need a few examples of properly, partially , improperly constrained bodies in structures.

At a point P, the rectangular stress components are x = 1, y = 2, z = 4, xy = 2, yz = 3, and xz = 1 all in units of kPa. Find the principal stresses and check for invariance.

With respect to the frame of reference Oxyz, the following state of stress exists. Determine the principal stresses and their associated directions. Also, check on the invariances of l1, l2, l3. [tij] = 1 2 1 2 1 1 1 1 1

The state of stress at a point is such that sx = sy = sz = txy = tyz = tzx = r Determine the principal stresses and their directions

How do I even begin to attempt this.... Please show steps/work. Thank you

Please give symbolic expressions and explanations.

3 questions from Chapter 14 of Basic Fluid Mechanics by Wilcox
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