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Author
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Topic: Math problem for anyone who loves math
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funkmasterfreaky
Inactive Member
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Message 1 of 12 (32528)
02-18-2003 4:49 AM
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How long would it take to travel 16 000 light years at the speed of sound? Please show your math as best as possible. Admin please delete this as soon as I get an answer. ------------------ Saved by an incredible Grace. [This message has been edited by funkmasterfreaky, 02-18-2003]
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Primordial Egg
Inactive Member
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Hi Funkster, Well, very approximately... speed of sound = 330 m/s speed of light = 300,000,000 m/s so... time it takes to go 16,000 ly at the speed of sound: = 300,000,000*16,000/330 = 14.5*10^9 years (14.5 billion years) i.e more than the age of the universe (especially so if you're a YEC) Why would you want to know this though, if you don't mind me asking? It seems like a bit of a pointless question. PE
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shilohproject
Inactive Member
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Is this the speed of sound in space, at sea level, under water...?
| Replies to this message: | | | Message 4 by John, posted 02-18-2003 10:14 AM | | shilohproject has not replied |
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John
Inactive Member
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Sea level, give or take. The speed of sound varies with density. There is no sound in space-- yes, Hollywood has lied to you  -- and hence no speed of sound in space, btw. ------------------
No webpage found at provided URL: www.hells-handmaiden.com [This message has been edited by John, 02-18-2003]
| This message is a reply to: | | | Message 3 by shilohproject, posted 02-18-2003 9:44 AM | | shilohproject has not replied |
| Replies to this message: | | | Message 8 by zipzip, posted 02-28-2003 5:08 AM | | John has replied |
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funkmasterfreaky
Inactive Member
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Thanx, It seemed a pointless question to me too. My brother asked me and I'm not sure why he wanted to know. ------------------ Saved by an incredible Grace.
| Replies to this message: | | | Message 6 by Percy, posted 02-18-2003 4:50 PM | | funkmasterfreaky has not replied |
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Percy
Member Posts: 22480 From: New Hampshire Joined: 12-23-2000 Member Rating: 4.8
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Curious that the answer is pretty much the current estimate for the age of the universe. Seems like that 16,000 light-year figure was pretty specially selected. Yikes, shades of intelligent design!  --Percy
| Replies to this message: | | | Message 7 by Peter, posted 02-27-2003 4:09 AM | | Percy has not replied |
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Peter
Member (Idle past 1501 days) Posts: 2161 From: Cambridgeshire, UK. Joined: 02-05-2002
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Message 7 of 12 (33341)
02-27-2003 4:09 AM
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Reply to: Message 6 by Percy
02-18-2003 4:50 PM
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Perhaps they wanted to know when we would hear the big bang. Shame that in space no-one can hear you scream
| This message is a reply to: | | | Message 6 by Percy, posted 02-18-2003 4:50 PM | | Percy has not replied |
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zipzip
Inactive Member
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Message 8 of 12 (33412)
02-28-2003 5:08 AM
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Reply to: Message 4 by John
02-18-2003 10:14 AM
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Well...there is no audible sound in space. But there is no perfect vacuum anywhere (a few hydrogen/helium atoms here and there). So for extremely large-scale, high-amplitude displacements there should be some (extremely low frequency) sound, sort of. And if you had an enormous ear and a lot of patience perhaps you could hear it.
| This message is a reply to: | | | Message 4 by John, posted 02-18-2003 10:14 AM | | John has replied |
| Replies to this message: | | | Message 9 by John, posted 02-28-2003 8:57 AM | | zipzip has replied |
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John
Inactive Member
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Message 9 of 12 (33424)
02-28-2003 8:57 AM
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Reply to: Message 8 by zipzip
02-28-2003 5:08 AM
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I don't think so. If atoms are too far apart they aren't going to form a wave, there isn't going to be a sound. ------------------
No webpage found at provided URL: www.hells-handmaiden.com
| This message is a reply to: | | | Message 8 by zipzip, posted 02-28-2003 5:08 AM | | zipzip has replied |
| Replies to this message: | | | Message 10 by zipzip, posted 03-02-2003 3:40 AM | | John has replied |
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zipzip
Inactive Member
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Message 10 of 12 (33499)
03-02-2003 3:40 AM
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Reply to: Message 9 by John
02-28-2003 8:57 AM
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That is the point of extremely large-scale displacements of the medium -- so that the degree of rarefaction and compression are such that wave propagation occurs.
| This message is a reply to: | | | Message 9 by John, posted 02-28-2003 8:57 AM | | John has replied |
| Replies to this message: | | | Message 11 by John, posted 03-02-2003 10:19 AM | | zipzip has replied |
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John
Inactive Member
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Message 11 of 12 (33502)
03-02-2003 10:19 AM
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Reply to: Message 10 by zipzip
03-02-2003 3:40 AM
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| This message is a reply to: | | | Message 10 by zipzip, posted 03-02-2003 3:40 AM | | zipzip has replied |
| Replies to this message: | | | Message 12 by zipzip, posted 03-04-2003 8:50 PM | | John has not replied |
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zipzip
Inactive Member
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Message 12 of 12 (33665)
03-04-2003 8:50 PM
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Reply to: Message 11 by John
03-02-2003 10:19 AM
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Neat post.
| This message is a reply to: | | | Message 11 by John, posted 03-02-2003 10:19 AM | | John has not replied |
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