The most common pressure applications are K, L and M, from thickest wall to thinnest. However, there are other types that are not used on water lines- DWV ( drainage waste and vent ), H ( hydronic heating) and medical gases.
3 Inches.
some countries go by class depending on the thickness of the copper pipe. Class 0 being the thinnest of the classes, which can be used in general plumbing applications right through to Class 3 which is very thick and is used when laying in concrete, or when high water pressures are evident or when pipes have to be layed inside and expensive aritcles cannot be damaged due to burst pipes
This depends on the size of the copper pipe and what class it is. For example, copper pipe half inch class 0 and copper pipe class 3 have a wide weight difference because the wall of the class 3 copper pipe is much thicker.
1- What type of waste is the coper being used for (acidic ) 2- What type of "copper" Type K, L , M , DWV, Copper tubing can last less then 2 weeks or over100 years.
It equals 3/4" in length.
The same as a short radius 90 of that same pipe size. I Rule of thumb, for example: 1/2 inch copper tubing you would take off 1/2 inch, likewise 3/4 tubing take 3/4 inch. Your question is 'pipe' are you actually using pipe, cutting and threading pipe? I am often asked questions and find that people are not using 'pipe'. Copper tubing, pvc, cpvc, dwv are quite forgiving when it comes to a slight miscut. Iron and galvanized piping is a different story, get it right the first time!
Depends how long it is
No, there are only 3 elements which can be magnetized: iron, cobalt and nickel
40
pipe earthing is the best in 6 feet and 3" pipe, Connecting copper rod thickness 12"
Get rid of the entire copper pipe and fit 3/4 PEX from the street main into the house. Cheap and reliable.