An absolute vacuum is probably not possible. The closest we can come to the absolute absence of any matter is what we find in intergalactic space. It is thought that a couple of hydrogen atoms per cubic meter is the "matter load" there. We sure can't do anything like that around here as there is always a bunch of atoms of something trying to get into our evacuated space.
THEORETICALLY: An absolute vacuum has no mass contained. In empty space there is no mass, so an absolute vacuum is empty space and empty space is an absolute vacuum. There is no difference. Although, there may be energy passing through the empty space or vacuum in the form of electromagnetic waves, or gravitational or magnetic fields.
Depends on If it's absolute or relative. Vacuum in any unit is zero in absolute pressure. Vacuum in any unit is -normal air pressure in relative pressure.
The meter is defined as the distance traveled by ? in absolute vacuum in 1299792458 of a second.
A vacuum and a black hole are two very different things.
Yes, yes it is.
-14.7psig is the gauge pressure of an absolute vacuum.
To calculate the absolute pressure, first convert the vacuum gauge reading to pressure in inches of mercury (inHg). Since the vacuum gauge reads 20 inches, the absolute pressure is the barometric pressure minus the vacuum gauge reading: (30.71 , \text{inHg} - 20 , \text{inHg} = 10.71 , \text{inHg}). Therefore, the absolute pressure is 10.71 inches of mercury.
Theoretical maximum vacuum would be a perfect vacuum where there are no particles present. In practice, the highest vacuum achieved is around 10^-13 torr in ultra-high vacuum systems.
No. "Absolute" means non-negative.
An absolute vacuum is purely theoretical, and is an utter absence of matter. An implosion is essentially a violent inward collapse.
The maximum vacuum possible in inches of mercury (Hg) is considered to be 0 inches Hg, which represents a perfect vacuum where there is no pressure or air present.
For example in the most strong cosmic vacuum are millions of neutrinos. And in an installation increasing the temperature and the power of the pump the degassing continue down to the minimal resolution of the measuring instrument but this is not the "ideal" vacuum - it is the minimum possible in some conditions. The absolute vacuum is impossible - in nature or laboratory.