I found this really cool drag racing game. You can play it here
http://www.addictinggames.com/dragracerv3.html
fix your post…it needs to be
I found this really cool drag racing game. You can play it <a href="http://www.addictinggames.com/dragracerv3.html">here</a>
Your screenname is awesome, by the way
I think there’s something wrong with it. I went 684 mph and it didn’t break the sound barrier
Perhaps because the speed of sound at ground level is about 750 mph?
You mean sea Level…
No, actually, ground level works just fine…whether you’re in the Rockies, or in New Orleans, sound will not travel that slow…you’d have to go up to about airplane altitude (15k-20k meters) for sound to travel that slow, and the only reason is because of the extreme low temperatures up there…
So if he was drag racing in an Antarctican winter, then yes, maybe he would of broken the sound barrier…but only then.
Darn, you killed my thread.
Sorry, The reason higher altitudes have a higher mach number for a given air speed is the thin air.
Oh really? Wow, thanks for correcting me…too bad anything I’ve ever read on the subject says that temperature matters, not pressure/density when you’re dealing with air.
Speaking of Mach numbers, let’s check out what wikipedia says on it:
Hmm…you seem to be dead wrong…unless you mean ‘low temperature’ by ‘thin air’
For “reasons explained”, go here
.
Looks like you’re wrong again.
However, based on the nature of Wikipedia, that information could be dead wrong…prove me wrong, and I’ll acquiesce that I messed up.
Until then
~A
Sorry, wrong answer. Here’s a lovely parting gift, good luck next time!
Without going into gory detail, sound propagates through a fluid (such as air) via collisions between molecules. It doesn’t matter how far apart the molecules are, each collision still has the same effect… therefore density does not affect the speed of sound. In fact, for an ideal gas (and air is nearly ideal), the only factor that affects the speed of propagation is temperature.
If you were talking about solid air (whatever that is) you’d have given a partially correct answer. Sound propagates through solids via lattice vibrations; imagine a solid as a 3D array of golf balls spaced apart with little springs. Tap one of the golf balls, and your impulse will travel through the array via compressions and rebounds of each spring. As you change the distance between golf balls, the resonant frequency of each ball-spring-ball system changes, hence, the speed at which your impulse travels is affected.
…and that’s your lesson for today. The exam is, erm, Fronsday the zwolf of Extember. Bring a #2 pencil, scrap paper, and a unicycle.
Edit: Monkeyman, for being such a smarty and showing up Prof. Maestro, you’ll have extra homework next week.
hmmmm
-bows-
That’s an amazing debate stance, evan…you should be Bush’s speech writer
Hmm yes, Well dont i feel stupid, i know alot about aerodynamics and i didnt know that…
Then no, you don’t know a lot about aerodynamics.
The speed of sound is a major part of aerodynamics, I’m fairly certain.
-edit-
I seem to be half wrong…the study of how air moves around solids has nothing to do with the speed of sound.
Yes it does. how fast the air is going around the object has some affect, doesn’t it?
Yes but most things i do dont use mach numbers.
That game sucks! I can’t switch gears very well, because it sucks… then my engine breaks down from revving too much…
-double take-
Did you just compare air speed to the speed of sound?
Unless I am seriously out of it, that is completely unrelated.
Evan i’m intrigued, what aerodynamic things do you do? Even a basic understanding of numerical aerodynamics is a degree level subject, even by Oxford standards. Good for you for getting interested in something academic outside of school.