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  2. Time signature - Wikipedia

    en.wikipedia.org/wiki/Time_signature

    Simple meters are those whose upper number is 2, 3, or 4, sometimes described as duple meter, triple meter, and quadruple meter respectively. In compound meter , the note values specified by the bottom number are grouped into threes, and the upper number is a multiple of 3, such as 6, 9, or 12.

  3. Metre (music) - Wikipedia

    en.wikipedia.org/wiki/Metre_(music)

    The top number in the time signature will be 6, 9, 12, 15, 18, 24, etc. Compound metres are written with a time signature that shows the number of divisions of beats in each bar as opposed to the number of beats. For example, compound duple (two beats, each divided into three) is written as a time signature with a numerator of six, for example ...

  4. Metre - Wikipedia

    en.wikipedia.org/wiki/Metre

    10 3 m km kilometre: 10 −6 m μm micrometre: 10 6 m Mm megametre 10 −9 m nm nanometre: 10 9 m Gm gigametre 10 −12 m pm picometre: 10 12 m Tm terametre 10 −15 m fm femtometre: 10 15 m Pm petametre 10 −18 m am attometre 10 18 m Em exametre 10 −21 m zm zeptometre 10 21 m Zm zettametre 10 −24 m ym yoctometre 10 24 m Ym yottametre 10 ...

  5. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    The centimetre (SI symbol: cm) is a unit of length in the metric system equal to 10−2 metres (⁠ 1 100 ⁠ m = 0.01 m). To help compare different orders of magnitude, this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm). 1 cm – 10 millimetres. 1 cm – 0.39 inches. 1 cm – edge of a square of area 1 cm 2.

  6. Metric system - Wikipedia

    en.wikipedia.org/wiki/Metric_system

    The metric system is a decimal -based system of measurement. The current international standard for the metric system is the International System of Units (Système international d'unités or SI), in which all units can be expressed in terms of seven base units: the metre (m), kilogram (kg), second (s), ampere (A), kelvin (K), mole (mol), and ...

  7. 6-meter band - Wikipedia

    en.wikipedia.org/wiki/6-meter_band

    6-meter band. A Yaesu FT-857D tuned to 50.125 MHz, the traditional 6-meter single-sideband calling frequency in the United States. [1] The 6-meter band is the lowest portion of the very high frequency (VHF) radio spectrum (50.000-54.000 MHz) internationally allocated to amateur radio use. The term refers to the average signal wavelength of 6 ...

  8. Conversion of units - Wikipedia

    en.wikipedia.org/wiki/Conversion_of_units

    = 10 parts per million by volume = 10 ppmv = 10 volumes/10 6 volumes NO x molar mass = 46 kg/kmol = 46 g/mol Flow rate of flue gas = 20 cubic metres per minute = 20 m 3 /min The flue gas exits the furnace at 0 °C temperature and 101.325 kPa absolute pressure. The molar volume of a gas at 0 °C temperature and 101.325 kPa is 22.414 m 3 /kmol.

  9. List of metric units - Wikipedia

    en.wikipedia.org/wiki/List_of_metric_units

    The hyl is a unit of mass equal to 1 kgf⋅m −1 ⋅s 2 (9.806 65 ... The outhouse is a unit of area used in nuclear physics equal to 10 −6 barns (100 am 2 = 10 ...