![]() Therefore, 1 mile is equivalent to 1.609344 kilometers. This is a measurement of speed typically used in non-metric countries for transport such as the USA. ![]() Mach to Miles per hour formula Miles per hour. Mach is typically used in aviation and space exploration. The units are defined as follows: An object moving at 1 "mph" per hour will cover a distance of one mile. Actually, it is equivalent to 1.234,8 km/h. Since sound travels at different speeds in different conditions, the calculations here are given for 20C in dry air at sea level. speed MPH 2.998 x 10 8 m/sec x (1 km/1000 m) x (0.621 mi/1 km) x (60 sec/1 min) x (60 min/1 hr) Note all the units cancelled out, leaving only miles/hr: speed MPH (2.998 x 10 8 x 1/1000 x 0. A: Katie, The time taken to reach a particular distance (in most general sense) depends on how fast someone is moving. The length unit "mile" is commonly used in the Anglo-American countries, where speeds are represented in miles (instead of kilometers) per time unit and it should not be confused sea mile. Please share if you found this tool useful: 1 Speed Of Sound In Air to Miles Per Second 0.2138, 70 Speed Of Sound In Air to Miles Per Second 14.9626 2. We can now set up the equation using these relationships so the units cancel out leaving only the desired miles/hour. Imagine, if the start shot was fired at the finish line, it would take about 0.3 seconds of time to hear the shot in the start blocks. Another example, in a 100-meter sprint, the starting shot is fired directly next to the starting blocks. The speed of sound is often illustrated by an example of a thunderstorm: if lightning strikes within 3 seconds of the thunder sound, then the thunderstorm is about 1 kilometer away. Actually, it is equivalent to 1.234,8 km/h. Definition: If an object travels at the speed of sound in air at 20 degrees Celsius for one second, it travels a distance of 343 meters per second.
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