Oddly enough, if the air is escaping through a leaking check valve, there is an argument to be made that the flow rate should be constant, regardless of pressure. That's because the greater the pressure, the more the check valve tends to seat against the leak.
Marty
I don't think the coefficient of friction has to be less than 1. By the way, for cof=1, the sliding angle is 45 degrees. In other words, if you tilt something on a surface until it starts to slide, the angle will be 45 for cof=1.
Marty
I tried the calculation assuming that the tower was solid, which is very much a worst-case assumption. Using a wind pressure of 1/2*rho*v^2, I came up with the following equation for moment as a function of tower height:
M(x) = 1500x - 50x^2
Integrating this from 0 to 20 gives me an...
Yes, I looked up some references on the internet and what you've done is right. The only detail that you might question is your value of .75 for the distance to the centroid. That figure should probably be a little higher. But it's not available on the website where I found the rest of the beam...
Hi Welder
I agree with the way you've done the moment calculation,
except you've been a little careless with units; the
moment should be inch-lbs, not inches PER lb. Since
the moment of inertia (1.66) is in units of in^4, and the distance, you up with lbs/in^2, as you should.
I'm not sure I...
