Raising the wage in L.A., she said, will help spur similar increases in other parts of the country. The Los Angeles City Council votes 14-1 to move toward a $15 per hour minimum wage by 2020. The Los Angeles City Council votes 14-1 to move toward a $15 per hour minimum wage by 2020.
Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled gage pressure) is the pressure relative to the ambient pressure. Various units are used to express pressure.
ACS Distance Education explains that air pressure is the force exerted by the weight of air molecules. Atmospheric pressure is determined by the amount of air directly above a person or object. At sea level, the atmospheric pressure is 14.7 pounds per square inch, or PSI. At higher altitudes, the PSI decreases due to lower air pressure and density.