how fast is mach 4?

Mach 4 is 4 times the speed of sound. Sound travels at 720 miles per hour. So Mack 4 would be 2880 mph.

2006-07-20 16:19:04 · answer #1 · answered by Anonymous · 6⤊ 1⤋

Mach 4 Speed

2016-12-08 11:10:26 · answer #2 · answered by ? 4 · 0⤊ 0⤋

How Fast Is Mach 4

2016-10-03 10:34:35 · answer #3 · answered by ? 4 · 0⤊ 0⤋

The speed of sound is one Mach or Mach 1. I believe that officially you'd have to consider two things: the medium through which the sound is travelling (sound's speed varies depending on the various media, such as air, water, solids, etc). I think it depends on the density of the air as well, so that Mach 1 at 50,000 feet is different from Mach 1 at 100 feet above sea level.

By the way, sound cannot travel through a vacuum. At the moment I do not remember exactly, but at sea level Mach 1 is somewhere in the 600-750 miles per hour area. When the speed of sound is exceeded, the result can be a sonic boom. Fighter airplanes can do this, as did the Concorde. I believe some rifles are capable of firing bullets that exceed the speed of sound (a.k.a. mach 1).

I know that some fighter airplanes can exceed Mach 3, at some altitudes with either afterburners and/or while in a dive, as well.

Some of the record attempts for ground vehicle land speed, such as the Blue Flame and Blue Bird (think those were the names) approached the speed of sound, I do not believe they exceeded it. I recally one supposedly reached about 625 mph at one point, which would be in the area.

Sorry to not be more exact, but sometimes I don't care to look up things again, and I didn't see an answer yet to your question. Mach 3 would be three times the speed of sound, given the same parlance and usage. Good luck to you.

So I believe that Mach 4 is ballpark somewhere around 2500 mph (perhaps higher) which is somewhere around 4000 kilometers per hour (if you prefer that set of units).

2006-07-20 08:59:48 · answer #4 · answered by LostMyShirt2 2 · 1⤊ 0⤋

Mach is of course the speed of sound. Mach 1 is consider the actual speed of sound where Mach 2 is twice the speed of sound, etc. Altitude and temperature impact this speed as this is related to the density of the air. At Sea level breaking Mach 4 would be to travel at 3,040 MPH. If you were at 80,000 feet this would only take 2,640 MPH to break Mach 4 (only.. LOL). The space shuttle is still the fastest bird in the air at 17,300 MPH during re-entry where this is an official "atmosphere".

2006-07-21 01:46:25 · answer #5 · answered by Drewpie 5 · 0⤊ 0⤋

mach 4 = 1 361.16 m / s

Its 4 times the speed of sound which is 340.29 m / s

2006-07-20 08:49:54 · answer #6 · answered by Sbarstow226 2 · 0⤊ 0⤋

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RE:
how fast is mach 4?

2015-08-18 05:23:00 · answer #7 · answered by Anonymous · 0⤊ 0⤋

It is actually a relative number depending on the speed of the medium.

But At a temperature of 15 degrees Celsius, Mach 1 is 1,225 km·h-1 (761.2 mph) in the atmosphere. The mach number is not a constant; it is temperature dependent.

But then mach would be 761.2 * 4 = 3,044.8 mph, classified as Supersonic:

* Subsonic: Ma < 1
* Sonic: Ma = 1
* Transonic: 0.8 < Ma < 1.2
* Supersonic: 1.2 < Ma < 5
* Hypersonic: Ma > 5

2006-07-20 08:50:46 · answer #8 · answered by Rjmail 5 · 0⤊ 0⤋

4 times the speed of sound. The speed of sound varies by temperature and humidity on a day with 30% humidity and approximately 65 degrees the speed of sound would be 768.2976 MPH, so mach 4 on that day would be 3,073.2 MPH

2006-07-20 08:53:18 · answer #9 · answered by Gordon S 5 · 0⤊ 0⤋

Just above Mach 3. It doesn't matter, very fast.

2006-07-20 09:04:15 · answer #10 · answered by Anonymous · 0⤊ 0⤋

11 answers