Search results
Results from the WOW.Com Content Network
A decametre (International spelling as used by the International Bureau of Weights and Measures and by most English speaking countries, [1] [2] United States spelling dekameter or decameter [3] [4]), symbol dam ("da" for the SI prefix deca-, [1] "m" for the SI unit metre), is a unit of length in the International System of Units (SI) equal to ten metres.
1 decameter 33 m Length of the longest-known blue whale [32] 52 m Height of the Niagara Falls [33] 93.47 m Height of the Statue of Liberty: 10 2: 1 hectometer 105 m Length of a typical football field 137 m (147 m) Height (present and original) of the Great Pyramid of Giza: 300 m Height of the Eiffel Tower, one of the famous monuments of Paris 979 m
A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. All metric prefixes used today are decadic.Each prefix has a unique symbol that is prepended to any unit symbol.
The prefix was a part of the original metric system in 1795. It is not in very common usage, although the decapascal is occasionally used by audiologists.The decanewton is also encountered occasionally, probably because it is an SI approximation of the kilogram-force.
The statvolt (statV) is a unit of electric potential difference equal to 1 erg/statC, corresponding to 299.792 458 V. The statohm is a unit of electric resistance equal to 1 statV/statA, corresponding to ~ 898.755 1787 GΩ. The statsiemens or statmho is a unit of electric conductance equal to 1 statA/statV, corresponding to ~ 1.112 646 pS. [6]
What links here; Related changes; Upload file; Special pages; Permanent link; Page information; Cite this page; Get shortened URL; Download QR code
The common non-SI metric unit of volume, the litre, is defined as one cubic decimetre, although, from 1901 to 1964, there was a slight difference between the two due to the litre being defined using the kilogram rather than the metre. Markings of a ship's draft are shown in decimeters in most of the world.
In an analogous way, one can obtain finite difference approximations to higher order derivatives and differential operators. For example, by using the above central difference formula for f ′(x + h / 2 ) and f ′(x − h / 2 ) and applying a central difference formula for the derivative of f ′ at x, we obtain the central difference approximation of the second derivative of f: