There are many things that affects. Medium and temperature are examples.
I can give you two facts. They are temperature and medium.
the method for detecting things with sound is called as SONAR-sound navigation and radiation. in this mehod we need to know the speed of sound in that medium. and as we have the relation that speed=distance*time, we can use a detector-to know that the sound that we sent has returned and stopcock to get the time. the distance we get should be divided by 2 so as to get the distance of the object from the source.
Speed of sound is c ≈ 331 + 0.6 × T. T = Temperature. Speed of sound at 2 °C is c ≈ 331 + 0.6 × 2 = 332.2 m/s.
That means the speed, compared to the speed of sound. For example, "mach 2" means twice the speed of sound.
Mach refers to the speed of sound, for example, mach 1, equals the speed of sound, mach 2, the speed of sound times 2. So, mach 25 would mean, 25 times the speed of sound.
1. light 2. black hole 3. space comtinum
The mach number is the speed, compared to the speed of sound in air. Thus, mach 1 is the speed of sound, mach 2 is twice (2 times) the speed of sound, mach 3 is 3 times the speed of sound, etc.
Maybe you mean Mach 1 - which is the speed of sound. Mach 2 is twice the speed of sound, and so on ...
Mach 1 is the relative speed of sound through air. Relative because the speed of sound varies with air density. At sea level the speed of sound is about 740 miles per hour. Mach 2 is then twice the speed of sound.
Mach 2
Once you break the sound barrier you produce a "boom" as long as you are above the speed of sound. Regardless of the speed.
Mach 2
The B-2's maximum speed is 628 mph while the speed of sound is 768 mph, so ii is subsonic (the B-2 cannot fly faster than sound).