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1 nautical mile per hour (by definition), 1 852.000 metres per hour (exactly), [5] 0.51444 metres per second (approximately), 1.15078 miles per hour (approximately), 20.25372 inches per second (approximately) 1.68781 feet per second (approximately). The length of the internationally agreed nautical mile is 1 852 m.
kilogram per litre kg/L ≡ kg/L = 1000 kg/m 3: ... degree per second: ... mile per hour per second: mph/s ≡ 1 mi/(h⋅s) ...
US spelling: kilometer per hour: 1.0 km/h (0.62 mph) km/h mph; Imperial & US customary: mile per hour: mph mph 1.0 mph (1.6 km/h) mph km/h; mile per second: mi/s mi/s 1.0 mi/s (1.6 km/s) mi/s km/s; foot per second: ft/s (foot/s) ft/s long code "foot/s" outputs foot per second (and never feet) 1.0 ft/s (0.30 m/s) ft/s m/s (foot/s m/s) furlong ...
The kilometre, a unit of length, first appeared in English in 1810, [9] and the compound unit of speed "kilometers per hour" was in use in the US by 1866. [10] "Kilometres per hour" did not begin to be abbreviated in print until many years later, with several different abbreviations existing near-contemporaneously.
kilogram-kilometre (kg⋅km), moving 1 kg of cargo a distance of 1 km; tonne-kilometre or kilometre-tonne ( t⋅km or km⋅t , also tkm or kmt ), the transportation of one tonne over one kilometre ; 1 tkm = 1,000 kgkm.
The nautical mile per hour is known as the knot. Nautical miles and knots are almost universally used for aeronautical and maritime navigation, because of their relationship with degrees and minutes of latitude and the convenience of using the latitude scale on a map for distance measuring.
Miles per hour (mph, m.p.h., MPH, or mi/h) is a British imperial and United States customary unit of speed expressing the number of miles travelled in one hour.It is used in the United Kingdom, the United States, and a number of smaller countries, most of which are UK or US territories, or have close historical ties with the UK or US.
Estimated top speed of the Juno spacecraft (mass ~3600 kg) relative to Earth before insertion into Jupiter's orbit — second fastest human-made technical object. [27] 10 5: 100,000: 360,000: 224,000 0.0003: Dust particles in dust accelerators can exceed this speed. [28] 140,000: 540,000: 313,170 0.00047: Approaching velocity of Messier 98 to ...