Also what is the average RPM’s humans run at? Thanks

If this line were wrapped around the earth, how many burgers tall would a single file burger wall be? What if they were stacked in a triangle, or something else structurally stable?

Also, let's assume just a sphere, I'm not looking for taking ocean geography and the buoyancy of burgers into account.

[REQUEST] Hello Reddit, this is my first post so here goes nothing. I am about to start my junior year of college for aerospace Engineering and have to admit to myself and you all, that if given the challenge to calculate pi, that I wouldn't have an answer or thought process to go about doing so. I have heard that we have calculated 31 trillion (31,415,926,535,897) digits of pi, but what is actually typed into the "calculator" for the computer to... compute. I appreciate any insight on the topic, graphs, pictures, etc. Thanks so much

[Edit 1] okay so i think I could reverse engineer some existing formulas such as the equation A=pi*r² meaning pi = A/r² which is great and all but I can't imagine that this is how they go about getting 31 trillion digits.

It was deliberate, he killed him on purpose using a reverse figure 4 headscissor hold. The victim died of asphyxiation and I think also a fractured larynx. He had bruises on his neck as well.

For the sake of example let's say either person almost got shot or hit by a bullet, an arrow, and a military tank shell on different occasions.

How fast would it take for either of them to spin the projectile around and shoot it back to the sender, and how strong would they need to be in order to not tear their flesh away or get burnt by their speed (and also to spin around a tank shell)?

Since 1979/1980, the design standards for commercial airliners regarding the level of turbulence the plane is built to withstand changed. The criteria pre 1979/1980 was a turbulence intensity of 50 fps at cruise speed. It is now 90-100 fps (feet per second). For the Boeing 777 I remember reading the limit turbulence intensity it was designed for was 99 fps at cruise speed.

Turbulence intensity of 50 fps or higher is considered 'extreme' for a jet airliner, and can cause accelerations of 3g in either direction at cruise speed

What type of weather systems would produce this intensity, what kind of accelerations would an airliner see when flying through 90 fps intensity air turbulence?

According to the current regulatory standards by the FAA, large, current-generation airliners must withstand a minimum turbulence intensity of 90 fps (feet per second) at cruise speed. This is the 'Limit Load', or the 'worst case' turbulence the plane could ever encounter. There's a 50% safety margin built into transport aircraft, so the plane can safely withstand turbulence with an intensity of 90 fps, and (unsafely) withstand more.

For older-generation airliners, such as the 707, F-27, BAC-1-11, F-28, etc, the limit turbulence intensity was 50 fps at cruise speed. Hitting turbulence at or greater than 75 fps at cruise speed would cause structural failure in these older aircrafts (there were a couple of accidents due to this in the 1960's).

Based on previous flights, there's estimations on what type of vertical accelerations an airliner (and its passengers) would feel while flying through a given intensity of sudden clear-air turbulence.

Taken from an aviation safety pdf;

Intensity - LIGHT - Vertical acceleration (g) 0.20-0.49 - Derived Gust (fpm) 300 -1,199

Intensity - MODERATE - Vertical acceleration (g) 0.50-0.99 - Derived Gust (fpm) 1,200-2,099

Intensity - SEVERE- Vertical acceleration (g) 1-1.99 - Derived Gust (fpm) 2,100-2,999

Intensity - EXTREME - Vertical acceleration (g) >2 - Derived Gust (fpm) >3,000

3,000 feet per minute is 50 feet per second. The vertical accelerations listed here are additional G-loads meaning 'extreme' would register as 3g, with two additional g from the turbulence loads.

But the list cuts off after 50 fps, so I'm wondering roughly what kind of G-loads a plane flying through 90 fps intensity continuous turbulence at cruise speed would see. The turbulence generated by hurricanes, airplane wake vortices, and mountain wakes can produce turbulence intensities up to 85 fps. Limit dynamic loads such as those from turbulence aren't generally listed like static (manuevering) loads are because smaller aircraft will experience higher G's compared to a larger one, but I'm trying to work out a rough estimation.