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The 15K run (15 kilometers, or approximately 9.32 miles) is a long-distance foot race.It is a rarely held race that is not recognized as an Olympic event. The overall world best time for men was set by Jacob Kiplimo en route the Lisbon Half Marathon.
kilometre (km) or kilometer is a metric unit used, outside the US, to measure the length of a journey; the international statute mile (mi) is used in the US; 1 mi = 1.609344 km; nautical mile is rarely used to derive units of transportation quantity.
Although most contemporary accounts used an Arabic mile of 6 444 feet (1,964 metres), which gave a Spanish league of the degree of 25,776 feet (7,857 metres or 4.242 modern nautical miles) others defined an Arabic mile as just 6,000 feet making a Spanish league of the degree 24,000 feet (or 7,315 metres, almost exactly 3.95 modern nautical miles).
It is sometimes written as mm/m or m/km instead of the ‰ symbol. [1] [2] as a ratio of one part rise to so many parts run. For example, a slope that has a rise of 5 feet for every 1000 feet of run would have a slope ratio of 1 in 200. (The word "in" is normally used rather than the mathematical ratio notation of "1:200".)
The term "Kármán line" was invented by Andrew G. Haley in a 1959 paper, [20] based on the chart in von Kármán's 1956 paper, but Haley acknowledged that the 275,000 feet (52.08 mi; 83.82 km) limit was theoretical and would change as technology improved, as the minimum speed in von Kármán's calculations was based on the speed-to-weight ...
The kilometre (SI symbol: km; / ˈ k ɪ l ə m iː t ər / or / k ɪ ˈ l ɒ m ə t ər /), spelt kilometer in American and Philippine English, is a unit of length in the International System of Units (SI), equal to one thousand metres (kilo-being the SI prefix for 1000).
Close to 1 in 10 people in the U.S., about 32 million people, are Hispanic males; the U.S. Latino population is nearly evenly divided between men and women.
The 10K run is a long-distance road running competition over a distance of ten kilometres (6.2 miles). Also referred to as the 10K road race , 10 km , or simply 10K , it is one of the most common types of road running event, alongside the shorter 5K and longer half marathon and marathon .