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  2. Velocity - Wikipedia

    en.wikipedia.org/wiki/Velocity

    Velocity is the speed in combination with the direction of motion of an object.Velocity is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of bodies.

  3. Bicycle and motorcycle dynamics - Wikipedia

    en.wikipedia.org/wiki/Bicycle_and_motorcycle...

    For a sample motorcycle moving at 22 m/s (50 mph) that has a front wheel with a moment of inertia of 0.6 kg·m 2, turning the front wheel one degree in half a second generates a roll moment of 3.5 N·m. In comparison, the lateral force on the front tire as it tracks out from under the motorcycle reaches a maximum of 50 N.

  4. Minute and second of arc - Wikipedia

    en.wikipedia.org/wiki/Minute_and_second_of_arc

    A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol ′, is a unit of angular measurement equal to ⁠ 1 / 60 ⁠ of one degree. [1] Since one degree is ⁠ 1 / 360 ⁠ of a turn, or complete rotation, one arcminute is ⁠ 1 / 21 600 ⁠ of a turn.

  5. Death Valley National Park - Wikipedia

    en.wikipedia.org/wiki/Death_Valley_National_Park

    The end product was shipped out of the valley 165 miles (266 km) to the Mojave railhead in 10-ton-capacity wagons pulled by "twenty-mule teams" that were actually teams of 18 mules and two horses each. [35] A twenty-mule team in Death Valley. The teams averaged two miles (3.2 km) an hour and required about 30 days to complete a round trip. [33]

  6. Liquefied natural gas - Wikipedia

    en.wikipedia.org/wiki/Liquefied_natural_gas

    The heating value depends on the source of gas that is used and the process that is used to liquefy the gas. The range of heating value can span ±10 to 15 percent. A typical value of the higher heating value of LNG is approximately 50 MJ/kg or 21,500 BTU/lb. [2] A typical value of the lower heating value of LNG is 45 MJ/kg or 19,350 BTU/lb.

  7. Weather radar - Wikipedia

    en.wikipedia.org/wiki/Weather_radar

    Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.).

  8. Tree - Wikipedia

    en.wikipedia.org/wiki/Tree

    Common ash (Fraxinus excelsior), a deciduous broad-leaved tree European larch (Larix decidua), a coniferous tree which is also deciduousIn botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves.

  9. Atom - Wikipedia

    en.wikipedia.org/wiki/Atom

    The basic idea that matter is made up of tiny indivisible particles is an old idea that appeared in many ancient cultures. The word atom is derived from the ancient Greek word atomos, [a] which means "uncuttable".