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The thrust-to-weight ratio is usually calculated from initial gross weight at sea level on earth [6] and is sometimes called thrust-to-Earth-weight ratio. [7] The thrust-to-Earth-weight ratio of a rocket or rocket-propelled vehicle is an indicator of its acceleration expressed in multiples of earth's gravitational acceleration, g 0. [5]
The proper length of the first lane of a competitive running track is 400 m (1,312.3 ft). Some tracks are not built to this specification, instead being a legacy to imperial distances such as 440 yd (402.336 m), equivalent to a quarter of a mile.
The following table gives the efficiency for several engines when running at 80% throttle, which is approximately what is used in cruising, giving a minimum SFC. The efficiency is the amount of power propelling the plane divided by the rate of energy consumption. Since the power equals thrust times speed, the efficiency is given by
2. 200s. This simple interval workout will get you to five to six miles on the track. Trade off between running 200 meters slightly faster than your mile pace and 200 meters of easy recovery.
The 1928 games were also the first games to use a 400-meter track, which became the standard for track and field. The modern sprinting events have their roots in races of imperial measurements which were later altered to metric: the 100 m evolved from the 100-yard dash , [ 7 ] the 200 m distance came from the furlong (or 1 ⁄ 8 mile ), [ 8 ...
Because the distances are so similar, a conversion of 0.01 seconds is sometimes applied in statistical lists to convert 60 yd hurdle marks to equivalent 55 m hurdles times. [1] The 70 yards hurdles was also an uncommon distance held indoors beginning at the 1956 USA Indoor Track and Field Championships and ending by the 1963 Championships. [2]
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The factor–label method can convert only unit quantities for which the units are in a linear relationship intersecting at 0 (ratio scale in Stevens's typology). Most conversions fit this paradigm. An example for which it cannot be used is the conversion between the Celsius scale and the Kelvin scale (or the Fahrenheit scale). Between degrees ...