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By definition, Mach 1 is the speed of sound. Most of the time it is used to refer to the speed of sound in air, but it can be used to refer to the speed of sound in any fluid.… Mach numbers are multiples of this speed, so Mach 0.5 is half the speed of sound while Mach 2.5 is two and half times the speed of sound. The term "transonic" refers to a condition where the speed crosses over the speed of sound - so it refers to a range of velocities of airflow exist surrounding and flowing past an air vehicle or an airfoil that are concurrently below, at, and above the speed of sound in the range of Mach 0.8 to 1.2. In this respect - at least some of the velocities must be below the speed of sound, some at the speed of sound and some faster. The correct term for speeds that are exclusively faster than Mach 1 is supersonic. (MORE)

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In Astronomy

Speed of light is 299,792,458 metres per second There are 31,356,000 seconds in a year of 365 days ie not a leap year. A light year is therefore 9,454,254,…955,488,000 metres Mach 1 is not constant as it depends on atmospheric composition and temperature but for this calculation I am using 340.29 metres per second. At Mach1 it would take 27,782,935,012,748 seconds to travel 1 light year. In more manageable terms this is 880,991 years. I hope this helps - it made my brain ache !!! (MORE)

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Mach 1 or any other Mach number, is not a specific speed. Mach numbers refer to the speed of sound in that medium. Mach 1 is about 760 mph at sea level (+ or - 4-5 degrees… depending on the temperature). Mach 1 decreases as you go to higher elevations. At 30000 ft Mach 1 is 678 mph (589 knots, 1091 km/h) which is about cruising altitude for an average commercial airplane. (1 knot=1.15078 mph / 1 mph=0.868976 knots) (MORE)

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The unit Mach doesn't have a direct conversion to mph, because Mach 1 is the speed of sound (Mach 2 is 2 times the speed of sound etc.) and the speed of sound changes with alt…itude, while mph stay the same regardless of altitude and therefore causes the conversion between the two units to vary. For example, at sea level the speed of sound is 761.2 mph, but at 18 miles of altitude the speed of sound is 673.4mph. Got to the following webpage for a table of the speed of sound (Mach 1) at different altitudes. (MORE)

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Mach 1 is the speed of sound, which varies by the air's pressure and temperature. Mach 1 at sea level is 340.3 m/s, 764.2 mi/h, 1,225 km/h. Hope that helped! -Jeffrey

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In Air Travel

Mach 1 is the speed of sound, approximately 768 miler per hour, but it will vary based on density of air, caused by humidity.

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In Science

It changes with weather, atmospheric conditions and altitude. Most accept 657 miles per hour at 10,000 as the speed of sound.

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In Uncategorized

the 5s because it has better service but it dosent have diffrent colrs just silver gold and black

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20c + 5 = 5c + 65 Divide through by 5: 4c + 1 = c + 13 Subtract c from both sides: 3c + 1 = 13 Subtract 1 from both sides: 3c = 12 Divide both sides by 3: c = 4

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p That would be by having 5 leaf leaf springs in the rear from the 4 that came in some depending on the engine option, also some did come with a heavy duty sway bar in the rea…r that can be purchased from mustangsunlimited.com. also installing a heavier duty front sway bar is a big improvement especially for the mach1s that have the 429 V8 (MORE)