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  2. Relative density - Wikipedia

    en.wikipedia.org/wiki/Relative_density

    Relative density with respect to air can be obtained by =, where is the molar mass and the approximately equal sign is used because equality pertains only if 1 mol of the gas and 1 mol of air occupy the same volume at a given temperature and pressure, i.e., they are both ideal gases. Ideal behaviour is usually only seen at very low pressure.

  3. Water (data page) - Wikipedia

    en.wikipedia.org/wiki/Water_(data_page)

    Velocity of sound in water; c in distilled water at 25 °C : 1498 m/s c at other temperatures [8]: 1403 m/s at 0 °C 1427 m/s at 5 °C 1447 m/s at 10 °C 1481 m/s at 20 °C

  4. Agua de Salud - Wikipedia

    en.wikipedia.org/wiki/Agua_de_Salud

    Agua de Salud is a corregimiento in Ngäbe-Buglé Comarca in the Republic of Panama. [1] [2] References This page was last edited on 27 February 2023, at 16:34 (UTC). ...

  5. Properties of water - Wikipedia

    en.wikipedia.org/wiki/Properties_of_water

    As it is, the inversion of the density curve leads to a stable layering for surface temperatures below 4 °C, and with the layer of ice that floats on top insulating the water below, [40] even e.g., Lake Baikal in central Siberia freezes only to about 1 m thickness in winter. In general, for deep enough lakes, the temperature at the bottom ...

  6. Density - Wikipedia

    en.wikipedia.org/wiki/Density

    To simplify comparisons of density across different systems of units, it is sometimes replaced by the dimensionless quantity "relative density" or "specific gravity", i.e. the ratio of the density of the material to that of a standard material, usually water. Thus a relative density less than one relative to water means that the substance ...

  7. Density altitude - Wikipedia

    en.wikipedia.org/wiki/Density_altitude

    Density Altitude Computation Chart [1]. The density altitude is the altitude relative to standard atmospheric conditions at which the air density would be equal to the indicated air density at the place of observation.

  8. Density of air - Wikipedia

    en.wikipedia.org/wiki/Density_of_air

    The density of air or atmospheric density, denoted ρ, [1] is the mass per unit volume of Earth's atmosphere.Air density, like air pressure, decreases with increasing altitude.

  9. Agua Salud station - Wikipedia

    en.wikipedia.org/wiki/Agua_Salud_station

    Agua Salud is a Caracas Metro station on Line 1. It was opened on 2 January 1983 as part of the inaugural section of Line 1 between Propatria and La Hoyada. [1] The station is between Gato Negro and Caño Amarillo. [2] Agua Salud is one of the only two above ground stations of Line 1.