1 Watt is the power of a Joule of energy per second Power Current x Voltage (P I V) 1 Watt is the power from a current of 1 Ampere flowing through 1 Volt. The following example shows CONVERT between different sample start_unit and end_unit arguments. 1 Joule (J) is the MKS unit of energy, equal to the force of one Newton acting through one meter. TIMEVALUE: Returns the fraction of a 24-hour day the time represents. TIME: Converts an hour, minute, and second into a time. For example, CONVERT(13.2,"ft","C") would result in an error as a result of an attempted conversion from distance units to temperature units.ĭATE: Converts a year, month, and day into a date.ĭATEVALUE: Converts a provided date string in a known format to a date value. The use of CONVERT between two different categories of start_unit and end_unit will result in an error. Weight - u, grain, g, ozm, lbm, stone, sg, cwt, uk_cwt, ton, uk_tonĭistance - ang, Picapt, pica, in, ft, yd, m, ell, mi, survey_mi Nmi, ly, parsecĮnergy - eV, e, J, flb, c, cal, BTU, Wh, HPh The following list outlines the available unit conversions by category: Įnd_unit - The unit of measure into which to convert value. Start_unit - The starting unit, the unit currently assigned to value. Value - the numeric value in start_unit to convert to end_unit Vehicle owners' guides now specify tire inflation in kilopascals.Converts a numeric value to a different unit of measure. In the former cgs system, the unit of pressure is the barye (symbol ba), which is equal to one decipascal. In the former mts system, the unit of pressure is the pièze (symbol pz), which is equal to one kilopascal. Since official metrication, meteorologists in Canada use kilopascals (kPa), see for example CTV News, weather current conditions in Montréal and CBC weather, current conditions in Montréal, although in some other countries hectopascals are still in use, see for example KNMI, KMI, DWD, JMA, MDD and NOAA. Therefore, meteorologists use hectopascals (hPa) today for air pressure, which are equivalent to millibars, while similar pressures are given in kilopascals in practically all other fields, where the hecto prefix is hardly ever used. After the introduction of SI units, many preferred to preserve the customary pressure figures. Meteorologists worldwide have for a long time measured atmospheric pressure in millibars. It is a measure of force per unit area, defined as one newton per square. The Unicode computer character set has dedicated symbols ㎩ (U+33A9) for Pa and ㎪ (U+33AA) for kPa, but these exist merely for backward-compatibility with some older ideographic character-sets and are therefore deprecated. The pascal (symbol: Pa) is the SI derived unit of pressure, internal pressure.
The same definition is used in the compressor and the pneumatic tool industries (ISO 2787). In 1985, IUPAC recommended that standard atmospheric pressure should be harmonized to 100,000 Pa = 1 bar = 750 Torr. This definition is used for pneumatic fluid power (ISO R554), and in the aerospace (ISO 2533) and petroleum (ISO 5024) industries. Based on The International System of Units, section 5.2. Example: convert 15 Pa to newton/square meter: 15 Pa 15 × 1 newton/square meter 15 newton/square meter.
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But when an SI unit is spelled out, it should always be written in lowercase ( pascal), unless it begins a sentence or is the name "degree Celsius". The pascal (symbol: Pa) is the SI derived unit of pressure, internal pressure, stress, Young s modules and tensile strength, defined as one newton per. How to Convert Pascal to Newton/square Meter. As with all SI units whose names are derived from the proper name of a person, the first letter of its symbol is uppercase ( Pa). This SI unit is named after Blaise Pascal.
The name pascal was adopted for the SI unit newton per square metre by the 14th CGPM in 1971. The unit is named after Blaise Pascal, the eminent French mathematician, physicist, and philosopher noted for his experiments with a barometer, an instrument to measure air pressure. Note: mmHg is an abbreviation for millimetres of mercury.
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