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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.
A semi truck traveling from Los Angeles to Chicago (approximate distance 2,015 miles) carrying 14 short tons of cargo delivers a service of 14 * 2,015 = 28,210 ton-miles of freight (equal to about 41,187 tkm).
MPH or mph is a common abbreviation of miles per hour, a measurement of speed. MPH may also refer to: MPH, a 2014–2015 comic book series by Mark Millar and Duncan Fegredo; Make Poverty History, campaign to end poverty in Africa; Manlius Pebble Hill School, DeWitt, New York, US; Martinair's airline code; Master of Public Health, degree
The SI unit of speed is the metre per second (m/s), but the most common unit of speed in everyday usage is the kilometre per hour (km/h) or, in the US and the UK, miles per hour (mph). For air and marine travel, the knot is commonly used. The fastest possible speed at which energy or information can travel, according to special relativity, is ...
As of May 15, 2017, 41 states have maximum speed limits of 70 mph (113 km/h) or higher. 18 of those states have 75 miles per hour (121 km/h) speed limits or higher, while 7 states of that same portion have 80 mph (129 km/h) speed limits, with Texas even having an 85 miles per hour (137 km/h) speed limit on one of its toll roads.
For railways with very high passenger loads, the maximum possible route capacity is an important factor. A common unit for route capacity is people per hour (pph), which can for metro style systems can be as high as 80,000. [citation needed] Route capacity can also be expressed as number of vehicles per hour, such as 16 trains per hour (tph). [6]
Now, to calculate gas cost per mile simply divide the total miles driven by the total cost of your last fill-up. Using the prior example, if the gas cost $2.49 per gallon, your 15-gallon fill-up ...
Some airspeed indicators in aircraft prior to the mid-1970s indicate in miles per hour plus knots (1 knot = 1.15 mph) or kilometers per hour (1 knot = 1.85 km/h). A primary flight display with the indicated airspeed (IAS) displayed in the form of a vertical "tape" on the left.