A fairly ghastly approach would be to assume a constant force on the bullet as it penetrates. Then you know that F*Ts=1/2*m*Vo^2
So with your thinner plate thickness T1 using F, as worked out above
1/2*m*v1^2=1/2*m*Vo^2- F*T1
where v1 is the speed at which it emerges.
Here's Nathan Okun's...
Latest nuclear news. Germany has dropped opposition to nuclear as an approved power source for the EU.
https://www.reuters.com/business/energy/berlin-paris-overcome-rift-over-nuclear-energy-french-official-says-2025-05-19/
Belgium has reversed tack on phase out of nuclear. Denmark...
Some percentage of the carbon from the fallen trees is taken down into the soil, and effectively sequestered. One gummint scheme pays farmers for increasing the carbon content of their soils, by using dung bettels and similar animals, and less insecticide.
I think you'll find in the first diagram the cg is vertically above the contact patch for the rear wheels. So due to some problem in your model the solver has found a geometry where static equilibrium is satisfied, but not the one you expected.
It seems to me you would be wise to look for...
James 'air conditioning trick' Hansen has announced the Earth's albedo has dropped from 29.35% to 28.7 % since 2000. He attributes this to cloud cover, most of which is due to gerbil warbling. I dunno, it's almost as if a system that has supplied a liveable environment for 1.5 billion years has...
Given the last few years and the new broom at Washington, Texas is attempting to legislate that ALL grid power sources must be dispatchable. This will be as popular as a cup of cold sick to the rentseekers. Of course the devil will be in the details, but if we guess one hour of backup that more...
I'm /guessing/ that the 120 dB at 2m is for a PSV venting to atmosphere. Compared with say an IC engine that is pretty small beer, so you should be OK with truck type exhaust pipe. To get around the organ pipe effect you could add a Helmholtz resonator, or an expansion/contraction muffler, which...
Superficially it looks similar because it is a regular truss with a point load, but in general there is little obvious similitude between a force diagram and the geometry of a structure. Here's an example
Unless you know how to construct a force polygon at a joint I don't see how you can...
waross- yes I agree in the absence of friction etc then the shape of the path (ignoring the loop) is irrelevant. Brachistocrone is optimising for minimum total transit time, not exit velocty explicitly.
Personally I'd steal my grandson's Hotwheels and do some experiments rather than trying to...
Well, if you finally get around to doing it properly you should get something like this for the bar forces. I got the geometry by cursoring figure 8
Coord=[0 185 0;0 0 0; 206 185 0;206 28 0;399 185 0;399 52 0;596 185 0]; % coordinates of nodes
Con=[1 2; 2 3; 3 1; 4 2; 3 4;3 5; 4 5; 4 6; 6 5;5...
" I assume the PSV discharging into a pipe would attentuate the noise for nearby operators, but don't have any experience to suggest what an actual attenuation value would be."
A dangerous assumption. That depends on a host of factors, but you have basically created a steam powered organ pipe...
So, ignoring aero drag, m*g*h=1/2*m*v^2+integral F dx, and we want to maximise v. F is the friction force. So there's a tradeoff between minimizing F (ie low radial accelerations) and total path length. So a big part of the problem is deciding on the optimal shape and size of the loop. A big...
The diagram is, AS THE ORIGINAL TEXT states, a superposition of all the joint diagrams, and I have explained how to construct it in one of my posts. I don't teach stupid.
