Units of Surface Energy Density
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Description
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Surface energy density has the dimension mass per time squared. The SI composite unit of surface energy density is the joule per square meter.
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Maple knows the units of surface energy density listed in the following table.
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Name
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Symbols
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Context
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Alternate Spellings
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Prefixes
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langley
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energy *
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langleys
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SI
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jansky
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standard *
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janskies
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SI
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An asterisk ( * ) indicates the default context, an at sign (@) indicates an abbreviation, and under the prefixes column, SI indicates that the unit takes all SI prefixes, IEC indicates that the unit takes IEC prefixes, and SI+ and SI- indicate that the unit takes only positive and negative SI prefixes, respectively. Refer to a unit in the Units package by indexing the name or symbol with the context, for example, langley[energy]; or, if the context is indicated as the default, by using only the unit name or symbol, for example, langley.
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The units of surface energy density are defined as follows.
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A langley is defined as a thermochemical calorie per square centimeter.
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A jansky is defined as watt per square meter hertz.
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