2007-08-11 05:45:21 · 4 answers · asked by shujen l 2 in Science & Mathematics ➔ Physics
1-pitot tube
2-Buble tube
3-torricelli tube-barometer
2007-08-11 06:01:30 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Depends on the vacuum. Few millimeters of mercury can be measured using the mercury barometer, or a bourdon tube gauge etc. Medium vacuum is measured using more sophisticated gauges like thermocouple gauges etc., Very high vacuum is measured using still more sophisticated instruments.
2007-08-11 12:50:58 · answer #2 · answered by Swamy 7 · 0⤊ 0⤋
Well... a vacuum is a space in which there are few, or no particles. So, there are only a couple of things you can measure about a vacuum, like: volume (of the total area of vacuum), density (of any particles in the vacuum), pressure, and temperature.
2007-08-11 13:31:26 · answer #3 · answered by Anonymous · 0⤊ 0⤋
what r u saying?
2007-08-11 12:50:18 · answer #4 · answered by vr 2 · 0⤊ 0⤋