some hypathetical questions i've been trying to research,

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some hypathetical questions i've been trying to research,

Postby remo24 » Thu Apr 15, 2004 10:28 pm

i know that mach 1 is the speed of sound, but i was wondering how many G's it is, and if a "Gravity" is a measurment of speed what would it be to mph? or is "G's" a measurment of force? if so, how would one describe how many "G's" one would be going/expierencing if we were in a zero Gravity environment? and, how many mochs would some body be going if he were going 1Astronomical Units/hour (93,000,000mph)? I've heard certain designations for g's with speed like: a person expierences 6 g's going 70mph down a free way or on a roller coater, or one expierences 9 g's during re-entry into the earths atmosphere. i'v also seen speed limitations for some jet fighters being mach 14, how many mph is a moch? and since moch is the speed of sound, and there is no atmosphere in space to project sound, would a person hear a sonic boom once a craft were to hit the speed of sound in ourter space? and, would the same "boom" effect happen with light at the speed of light?

if this is too much, or if you don't understand because of spelling mistakes, I am sorry. I have been researching these for a game i am making, and i want to make it's mesurements as acurate as possible. please send your answeres to Remo24@excite.com, or to Michael.Ray.Saxton@us.army.mil thank you very much for your time
remo24
 

Re: some hypathetical questions i've been trying to research

Postby shill » Fri Apr 16, 2004 3:38 am

remo24 wrote:i know that mach 1 is the speed of sound, but i was wondering how many G's it is, and if a "Gravity" is a measurment of speed what would it be to mph? or is "G's" a measurment of force?

G's are a measurement of force. A g-force of 1 G is what you're experiencing right now, sitting in your chair.
remo24 wrote:if so, how would one describe how many "G's" one would be going/expierencing if we were in a zero Gravity environment?

You just answered your own question. You would experience 0 G.
remo24 wrote:and, how many mochs would some body be going if he were going 1Astronomical Units/hour (93,000,000mph)?

They would be going at approximately mach 122,116.
remo24 wrote:I've heard certain designations for g's with speed like: a person expierences 6 g's going 70mph down a free way or on a roller coater, or one expierences 9 g's during re-entry into the earths atmosphere. i'v also seen speed limitations for some jet fighters being mach 14, how many mph is a moch?

mach 1 = 340.29 metres per second (approx. 761.21 miles per hour)
remo24 wrote:and since moch is the speed of sound, and there is no atmosphere in space to project sound, would a person hear a sonic boom once a craft were to hit the speed of sound in ourter space?

You answered your own question again. No atmosphere = no sound = no sonic boom.
remo24 wrote:and, would the same "boom" effect happen with light at the speed of light?

Either that, or the universe would implode. Either way, surpassing the speed of light is impossible, according to Einstein.
remo24 wrote:please send your answeres to Remo24@excite.com, or to Michael.Ray.Saxton@us.army.mil

This is a message board, we don't reply personally. I'm pretty sure if you put in a valid e-mail address when you signed up, then the message board will e-mail you automatically when there is a repsonse to a thread that you posted.
shill
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Aircraft Speed

Postby Guest » Wed Oct 20, 2004 8:04 pm

The fastest aircraft used by the us military is only rated for mach 3.3 or so. No aircraft or rocket was ever designed to go faster then mach 7. However, newer aircraft engine designs have reached the feasability of traveling at mach 7+ but these are still only theoretical. Aircraft rated at mach 14 would build up an extreem amount of heat causing the metal alloy covering the aircraft to melt. The speed of mach 3.3 causes enough heat buildup to cook a hotdog on the inside of the canopy covering the cockpit.
Guest
 

Re: some hypathetical questions i've been trying to research

Postby rock-billy » Sat Oct 15, 2005 7:41 pm

does anyone know at how many g force your body implodes?

Many thanks...
rock-billy
 

Postby Guest » Fri Oct 21, 2005 2:08 am

Actually NASA has a new X-43 that goes Mach10 by breathing air fastest speed ever by air induction. 7,000mph
Guest
 

ansers please

Postby someone » Wed Nov 23, 2005 3:40 am

all i know is that i have a question still not answered by the topic

how many g's are in a mach 1
someone
 

Postby Guest » Mon Dec 26, 2005 6:18 am

your G force at mach one will be 1 G because your body and your vehicle have finished acceleration. If your question is what is the G force while reaching mach 1 it depends on what your rate of acceleration is.
Guest
 


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