2007-09-13 06:54:08 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Physics
*THE* Three units? I quite enjoy:
Joule per cubic meter,
dynes per square furlong, or
slugs per rod-fortnight^2.
2007-09-13 07:03:14 · answer #1 · answered by ZikZak 6 · 1⤊ 0⤋
Pressure is defined as Energy per Unit volume.The equation is as follows;
Pr= E/Vol
A dimensional analysis indicates;
Pressure = Kg m^2/m^3 sec^2
canceling out like units yields,Pr=Kg/m sec^2Hence the 3 Units of pressure are Kg(mass),m( distance)and sec^2(unit of time squared)
In the SI system its Dimensional measure are in terms of Newton per meter squared which is equal to 1 Pascal.
2007-09-13 14:15:47 · answer #2 · answered by goring 6 · 0⤊ 0⤋
I can think of more than three. Pascals, pounds per square inch, atmospheres, torr, inches of mercury, bars, and many more. Anything involving a force unit divided by an areal unit is a unit of pressure.
2007-09-13 14:59:56 · answer #3 · answered by msi_cord 7 · 0⤊ 0⤋
Pa, psi, and bar
2007-09-13 14:01:31 · answer #4 · answered by civil_av8r 7 · 0⤊ 0⤋
pascal,bar,torr
2007-09-13 14:06:30 · answer #5 · answered by soumyo 4 · 0⤊ 0⤋