No, a vacuum is an absence of matter.
no
system isolated and the vacuum pump turned off.
It can Be measured with a meters or the stopwatch or amything.
Vacuum tubes were first replaced by transistors, and later by integrated circuits.
Deep vacuum is usually measured in microns. This unit of measurement is commonly used in vacuum technology to indicate levels of pressure or vacuum.
A vacuum's quality is indicated by how little material is within it. The quality is usually measured in gas pressure (as torrs). A torr is a historical unit, although still used for vacuum quality. The Si unit is the Pascal.
The ideal pressure in a perfect vacuum is 0 psi.
Vacuum pressure is the pressure below atmospheric pressure, while gauge pressure is the pressure above atmospheric pressure. Vacuum pressure is measured relative to a perfect vacuum, while gauge pressure is measured relative to atmospheric pressure.
If both speeds are measured in the same medium, whether it be vacuum, water, or jello, then they are equal.
Vacuum wavelength is the wavelength that is measured if the wave is passing through a vacuum. To get the wavelength in a medium you need to know the refractive index.
I don't see how the sucking capacity of a vacuum would be measured in units of length.
A vacuum cleaner is a machine used to suck up dust. The amount a vacuum cleaner sucks, can be measured in a number of ways including airflow in litres per second and airspeed in metres per second.
hg is a measurement of Vacuum measured in Inches of Murcury.
They are equal.
A vacuum's quality is indicated by how little material is within it. The quality is usually measured in gas pressure (as torrs). A torr is a historical unit, although still used for vacuum quality. The Si unit is the Pascal.
Vacuum is measured using a unit called Torr, which is commonly used in scientific and industrial settings. Another unit used for vacuum measurement is Pascal (Pa), which is the SI unit of pressure. Vacuum levels are typically expressed in Torr or Pa to indicate the degree of pressure below atmospheric pressure.