Let's do the math. We know that the speed of sound, also known as mach, is 1,010 feet per second. Six times that equals 6,060 feet per second. So, if we are going 6,060 feet in 1 second, that mean in one hour we can go 21,816,000 feet in one hour. (60*60*6060). Now divide this by 5,280 feet (1 mile) and we have 4,132 MPH.
The Mach number is simply the speed of an object divided by the speed of sound. While the speed of sound varies according to a number of factors, at sea level on a standard day (15C and 29.92 inches) it is 761.2 mph. Mach 6, then, would be 6 times that speed, or 4567.2 mph (at sea level on a standard day).
It is also important to note the velocity changes with the altitude. So, at 20 miles altitude (a reasonable altitude for something going mach 6), the speed for mach 1 is 683.7 mph, resulting in 4102.2 mph when multiplied by 6.
Mach 7 = 5,328.45 mph
Mach 7 is about 5,190.8 mph
mach 7 is 3850
Approximately 6,036.4 mph
5,370.88 mph
5,140.7 mph
Mach 10+
about 655 MPH
Mach one is the speed of sound, which is about 761.2 miles per hour (340.3 meters per second). Mach two is twice the speed of sound, which is about 1,522.4 miles per hour (680.6 meters per second).
This is actually Mach speed. One Mach speed unit is the speed of sound in air. Obviously a very rough unit.
the shockwave goes over mach 1 so get your running shoes on
the SR 71 goes really fast it goes Mach 7 NOT Mach 3.
Mach 0.8-1.0
Mach 889 is about 659,233 mph
Mach 1.7 is equal to about 1294 mph.
645.38104_MPH_">645.38104 MPH-is 0.87 Mach -
Mach 6 is about 4,449.3 mph
Mach 1 is about 762 mph, so mach 20 is about 15,240mph.
Mach 3.3 is about 2,512 mph depending on altitude.
mach 2.03
9.8 Mach
Mach 10+
Mach 0.7 is 533 mi/h (rounded)