One bar is a measure of atmospheric pressure that is equal to the pressure felt at sea level on Earth. It has largely replaced the older unit of one atmosphere, which is equal to 1.013 bar.
Know MoreAs of 2014, the bar is only partially integrated into the metric system, as the International Union of Pure and Applied Chemistry has defined 1 bar as being exactly equal to 100,000 pascals. The bar, and the smaller millibar, are most commonly used in meteorology and for industrial applications like the calibration of hydraulics. The bar is recognized for official use by the European Union, though the International Astronomical Union prefers the use of kilopascals and megapascals.
Learn MoreHeight above sea level is the elevation of land above the local mean sea level. Sea level is used as the base level for measuring depth and elevation on Earth. Temperature, gravity, winds, currents and river discharges affect sea levels.
Full Answer >The weight of a steel bar is calculated depending on its shape. Its weight per cubic inch is 0.2904 pounds. The weight of a square bar in pounds per foot is calculated by multiplying 3.40 pounds by L squared, where L is the length of one of the sides.
Full Answer >A watch with "20 bar" on its face has been laboratory-tested to withstand a pressure of 20 bars. That is approximately the pressure felt under 660 feet of water.
Full Answer >Pressure is calculated as force per unit area. The formula is written as pressure equals force divided by surface area. The unit for pressure, Pascal, can also be written as newtons per square meter based on this relationship.
Full Answer >