Recent content by peri

That sounds like an interpretation I can live with. Thanks for taking the time to clarify his notation!

I just started reading the first chapter of Georgi Shilov's "Linear Algebra" and I have a question about his notation for determinants. His notation, (7), for the determinant of an n x n matrix seems to be \det ||a_{ij}||. (4) suggests Shilov would write the 1 x 1 matrix with the single...

Thanks for your followup! It took me awhile to figure out why you use the tensile strength instead of the compressive strength. Provided granite blocks vertically under compression which then deform laterally are thus subject to tension because of the deformation, then I think I understand...

I thought you made a valid point. I was intending to include a Google link but I cannot link to anything until I have made 15 posts. In lieu of the link I should probably have shown the conversions explicitly to avoid confusion.

Thanks for the reply mgb_phys! I don't doubt the pressure is very real. I am just worried about whether I made a serious blunder in assuming the formula for hydrostatic pressure would be very useful for predicting the pressures involved in solids; so I thought I would post the question here. It...

It also yields pascals and not psi. Was it wrong to assume converting feet to meters and pascals to psi goes without saying? If so here is a version you should like better: 2.75 g/cm^3 is 2750 kg/m^3 1,000 feet is 304.8 m (2750 kg/m^3)*(9.8 m/s^2)*(304.8 m) + (101,325 Pa) is 8,315,685...

[SOLVED] Pressure on walls of granite shaft Homework Statement A friend said "In the deeper mines rock can literally explode if struck or impacted b/c of the pressure of the rock above it." This brought to mind the formula for hydrostatic pressure and nothing else. The density of granite is...