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  2. Speed - Wikipedia

    en.wikipedia.org/wiki/Speed

    In kinematics, the speed (commonly referred to as v) of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a non-negative scalar quantity. [1]

  3. Orders of magnitude (speed) - Wikipedia

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

    60: 37: 5 × 10 −8: Typical speed of thoroughbred racehorse or racing greyhound. 5–25: 18–90: 11–56: 1.7–8.3 × 10 −8: Speed of propagation for unmyelinated sensory neurons. 30: 110: 70: 1 × 10 −7: Typical speed of car (freeway); cheetah—fastest of all terrestrial animals; sailfish—fastest fish; speed of go-fast boat. 40: 140 ...

  4. Orders of magnitude (numbers) - Wikipedia

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

    1/52! chance of a specific shuffle Mathematics: The chances of shuffling a standard 52-card deck in any specific order is around 1.24 × 10 −68 (or exactly 1 ⁄ 52!) [4] Computing: The number 1.4 × 10 −45 is approximately equal to the smallest positive non-zero value that can be represented by a single-precision IEEE floating-point value.

  5. Metre per second - Wikipedia

    en.wikipedia.org/wiki/Metre_per_second

    The metre per second is the unit of both speed (a scalar quantity) and velocity (a vector quantity, which has direction and magnitude) in the International System of Units (SI), equal to the speed of a body covering a distance of one metre in a time of one second.

  6. List of world records in speed skating - Wikipedia

    en.wikipedia.org/wiki/List_of_world_records_in...

    For comparison, the fastest known 400m lap was skated by Jenning de Boo on 25 January 2025 in Salt Lake City during a 1000-meter, with a lap time of 23.92 seconds and an average speed of 60.20 km/h (37.41 mph). [15] *** unofficial world best (not recognized as a world record by ISU)

  7. Orders of magnitude (length) - Wikipedia

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

    570 fm – typical distance from the atomic nucleus of the two innermost electrons (electrons in the 1s shell) in the uranium atom, the heaviest naturally-occurring atom 1 picometer The picometre ( SI symbol: pm ) is a unit of length in the metric system equal to 10 −12 metres ( ⁠ 1 / 1 000 000 000 000 ⁠ m = 0. 000 000 000 001 m ).

  8. List of vehicle speed records - Wikipedia

    en.wikipedia.org/wiki/List_of_vehicle_speed_records

    Uncrewed torpedo speed claims range from 60 knots (110 km/h; 69 mph) for the British Spearfish torpedo [64] to 200 knots (370 km/h; 230 mph) for the Russian VA-111 Shkval. [ 65 ] ^ a b Ground effect vehicles (a.k.a. "Wing-In-Ground effect vehicles") are classified as maritime vessels, rather than aircraft, by the International Maritime ...

  9. Minute and second of arc - Wikipedia

    en.wikipedia.org/wiki/Minute_and_second_of_arc

    The physical group size equivalent to m minutes of arc can be calculated as follows: group size = tan(⁠ m / 60 ⁠) × distance. In the example previously given, for 1 minute of arc, and substituting 3,600 inches for 100 yards, 3,600 tan(⁠ 1 / 60 ⁠) ≈ 1.047 inches. In metric units 1 MOA at 100 metres ≈ 2.908 centimetres.