hour of UNPAID sick time for every 30 hours of work performed by the employee within the. geographic boundaries of the City of Portland. âºAn employee may earn up to 40 hours of sick time per leave year unless allowed more by the. employer. âº An employee may use accrued sick time: ï· To cover all or part of a shift. ï· In increments of one hour, unless a lesser time is allowed by the employer or it is physically.
atmospheric pressure. noun, Meteorology. 1. the pressure exerted by the earth's atmosphere at any given point, being the product of the mass of the atmospheric column of the unit area above the given point and of the gravitational acceleration at the given point.
Atmospheric Pressure force exerted by the weight of the air. Atmospheric pressure is defined as the force per unit area exerted against a surface by the weight of the air above that surface.In the diagram below, the pressure at point X increases as the weight of the air above it increases.t sea level, the weight of the air above this unit area would (on average) weigh 14.7 pounds! That means pressure applied by this air on the unit area would be 14.7 pounds per square inch. Meteorologists use a metric unit for pressure called a millibar and the average pressure at sea level is 1013.25 millibars.