2007-11-11 06:18:37 · 15 answers · asked by B W 1 in Science & Mathematics ➔ Physics
pressure........
2007-11-11 06:21:05 · answer #1 · answered by i pack a 44 5 · 1⤊ 0⤋
Pressure is generally classed as the opposite to Vacuum.
However, a pressure of say, 300mmHg Absolute will be a pressure below that of the atmosphere (760mmHg) and is therefore a partial vacuum, but, it is a Pressure also as it's above Absolute Zero Pressure..
So you could say that 'Vacuum is a Pressure below that of the atmosphere')
(I'll get shot down in flames here by the thumbs downers....
It is often said that vacuum is a 'Negative Pressure', like, if you remove the atmosphere, it will be -14.7psi or
-760mmHg'..etc)'.
2007-11-11 14:35:01 · answer #2 · answered by Norrie 7 · 0⤊ 0⤋
High Pressure or the presence of matter. A vacuum is the absence of matter... unless you're asking about the home appliance. The opposite of that home appliance is a 2-year old and a couple of dogs.
2007-11-11 14:21:43 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Vacuum - a given volume having zero atomic mass as
compared to the same volume filled with Unnilennium - the element having the highest atomic mass.
2007-11-11 14:40:23 · answer #4 · answered by Bomba 7 · 0⤊ 1⤋
not everything has an opposite. In the case of gravity, I suppose the opposite would be antigravity, and I know of no evidence that antigravity even exists.
So, probabley a blower.. or something..
2007-11-11 14:22:58 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Full,
Hence to fill a vacuum.
2007-11-11 14:39:46 · answer #6 · answered by Hammer&Drill 3 · 0⤊ 0⤋
The switch on the vacum that blows all the things out of it like in movies???
or hairdryer?
2007-11-11 14:26:08 · answer #7 · answered by Kealty 2 · 0⤊ 0⤋
A region of infinite density - like the singularity at the centre of a black hole, maybe.
2007-11-12 07:38:10 · answer #8 · answered by Pete WG 4 · 0⤊ 0⤋
kids, vaccum is to clean. Kids is make make a mess!
2007-11-11 14:22:11 · answer #9 · answered by mickeyid 2 · 1⤊ 0⤋
a leaf blower?
2007-11-11 14:21:11 · answer #10 · answered by Anonymous · 0⤊ 0⤋
medium
air , water , u know.plasma.
2007-11-11 14:21:36 · answer #11 · answered by sum142121 1 · 0⤊ 0⤋