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  2. Foot per second - Wikipedia

    en.wikipedia.org/wiki/Foot_per_second

    The foot per second (plural feet per second) is a unit of both speed (scalar) and velocity (vector quantity, which includes direction). [1] It expresses the distance in feet (ft) traveled or displaced, divided by the time in seconds (s). [2] The corresponding unit in the International System of Units (SI) is the meter per second.

  3. Time of useful consciousness - Wikipedia

    en.wikipedia.org/wiki/Time_of_useful_consciousness

    2.5 to 3 minutes 1.25 to 1.5 minutes FL300 (30,000 ft; 9,150 m) 1 to 2 minutes 30 to 60 seconds FL350 (35,000 ft; 10,650 m) 30 to 60 seconds 15 to 30 seconds FL400 (40,000 ft; 12,200 m) 15 to 20 seconds 7 to 10 seconds FL430 (43,000 ft; 13,100 m) 9 to 12 seconds 5 to 6 seconds FL500 (50,000 ft; 15,250 m) 8 to 10 seconds 5 seconds

  4. Light-second - Wikipedia

    en.wikipedia.org/wiki/Light-second

    The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in one second , and is equal to exactly 299 792 458 m (approximately 983 571 055 ft or 186 282 miles ).

  5. Foot per second squared - Wikipedia

    en.wikipedia.org/wiki/Foot_per_second_squared

    The foot per second squared (plural feet per second squared) is a unit of acceleration. [1] It expresses change in velocity expressed in units of feet per second (ft/s) divided by time in seconds (s) (or the distance in feet (ft) traveled or displaced, divided by the time in seconds (s) squared).

  6. Fortnight - Wikipedia

    en.wikipedia.org/wiki/Fortnight

    In many languages, there is no single word for a two-week period, and the equivalent terms "two weeks", "14 days", or "15 days" (counting inclusively) have to be used. ...

  7. Speed of light - Wikipedia

    en.wikipedia.org/wiki/Speed_of_Light

    The speed of light in vacuum, commonly denoted c, is a universal physical constant that is exactly equal to 299,792,458 metres per second (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour).

  8. Every Athlete Who Has Competed on 'Dancing with the Stars' - AOL

    www.aol.com/lifestyle/every-athlete-competed...

    He glided all the way to finale night in DWTS Season 10, finishing in second place. Rick Fox Fox was part of the Lakers' success in the early 2000s, leading to back-to-back-to-back championship ...

  9. Equations for a falling body - Wikipedia

    en.wikipedia.org/wiki/Equations_for_a_falling_body

    The first equation shows that, after one second, an object will have fallen a distance of 1/2 × 9.8 × 1 2 = 4.9 m. After two seconds it will have fallen 1/2 × 9.8 × 2 2 = 19.6 m; and so on. On the other hand, the penultimate equation becomes grossly inaccurate at great distances.