Science & Mathematics - 15 August 2007

2007-08-15 19:55:07 · 8 answers · asked by luke d 3 in Astronomy & Space

2007-08-15 19:48:33 · 3 answers · asked by Adeel 2 in Chemistry

How do you write the net ionic equation for the Al3+ cation to show that it is in group 3??

2007-08-15 19:34:06 · 1 answers · asked by Vienna 3 in Chemistry

3 = -2/4 + 4/2y so I have 4 and 2y as the denominators. The Algebra software program I am using gives the common denominator as 4y. How can that be if y is not common to both, 4 is common to both but not y.
thanks

2007-08-15 19:33:21 · 7 answers · asked by Boo Radley 4 in Mathematics

give some examples

2007-08-15 19:27:24 · 4 answers · asked by zulhilmy_crazeee 1 in Earth Sciences & Geology

2007-08-15 19:27:13 · 3 answers · asked by AJL 2 in Mathematics

Is the caret mark (^) used in the problems posed here supposed to mean MULTIPLY??? If so, why not just use a lower case x like we were taught in school? When I see the caret, I don't know if it is simple multiplicatiion or if the person wants to take a number to the umpteenth power or something.
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2007-08-15 19:26:56 · 4 answers · asked by jan51601 7 in Mathematics

Pls explain1-phase and 3-phase.

2007-08-15 19:24:49 · 3 answers · asked by quick and clever 1 in Engineering

i just came from las vegas and couldn't see the moon there. now, i am california still can't see the moon! where is it?

2007-08-15 19:22:48 · 12 answers · asked by miki 1 in Astronomy & Space

What is the distance between the points
with (x,y) coordinates (3,–2) and
(–3,–1)?

2007-08-15 19:18:01 · 3 answers · asked by Anonymous in Mathematics

all opinions appreciated. here is the site,http://www.goes.noaa.gov/HURRLOOPS/huirloop.html

2007-08-15 19:14:23 · 6 answers · asked by edward m 4 in Weather

2007-08-15 19:03:23 · 6 answers · asked by naka 2 in Botany

2007-08-15 19:03:01 · 5 answers · asked by 22 4 in Astronomy & Space

I dont know how to tell if the videos on sites like Youtube are time lapse or not. I dont think they go as fast as the ones on Youtube

2007-08-15 19:00:48 · 6 answers · asked by Anonymous in Astronomy & Space

i looked up a date and i found april 21 2008.. i live in southern california can i se this meteor shower from any where here and if so what time the only info i found was (hour : 19 ) but i dont know if i could se it and in what direction... i really want to know because i want to propose to my girlfriend that day.. thanks everyone

2007-08-15 18:57:03 · 3 answers · asked by samE1 1 in Astronomy & Space

I've been seeing a few discussions about "How can the universe be this wide?", and I'd just like to take it a step further.

So everyone knows that the Big Bang, which started the expansion from a single point somewhere in the universe 13.7 billion years ago, was the "beginning" of the universe as we know it. So if that happened 14 billion years ago, meaning that the farthest light (including any form of radiation) has traveled since then is 14 billion light-years in any direction, how can something be 46.5 billion light-years away? Does this imply that that the Big Bang, in fact, didn't actually create all of the matter currently existing in our universe, and that there is more matter out there that hasn't come from that point of origin?

Say the Big Bang was indeed the beginning of the universe as we know it. That means the farthest our planet could possibly travel from that point is 13.7 billion light-years, meaning the farthest away anything we could possibly see is 14 billion

2007-08-15 18:43:34 · 11 answers · asked by Karter4Life 2 in Astronomy & Space

Such bizarre and unusual side effects,where on earth do these properties come from?

2007-08-15 18:43:09 · 3 answers · asked by Anonymous in Medicine

I'm studying for a MAJOR exam right now, so if someone could please tell me what 'High Relief', and 'Relief' in general, I would be extremely grateful!!

Thank-you!

2007-08-15 18:41:11 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-08-15 18:40:32 · 14 answers · asked by Neeraj K 2 in Physics

I want to make an study to see the relations between deforestation and changes in rainfall.
Thanks!

2007-08-15 18:38:16 · 2 answers · asked by griz 1 in Earth Sciences & Geology

the wine glass has a cross section of a parabola for example x=.5y^2

2007-08-15 18:33:53 · 3 answers · asked by Anonymous in Mathematics

I want to understand different ways of writing in million and billion eg- 1,111 M in this case also means 1 billion.....right??

2007-08-15 18:32:47 · 18 answers · asked by Holly L 1 in Mathematics

32. What is the minimum temperature required for the spontaneous conversion of CCl4(l) to CCl4(g) when delta H is 573 kJ/mol and delta S is 1.64 kJ/mol x K???
a. 76 degree C
b. 89 degree C
c. 189 degree C
d. 215 degree C
e. 349 degree C

2007-08-15 18:25:27 · 3 answers · asked by Kristin R 2 in Chemistry

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2007-08-15 18:23:10 · 9 answers · asked by Anonymous in Other - Science

my little brother asked me this and i really didn't know and it was a very smart question for someone his age, so i decided to post this question. please only real answers, nothing stupid.

2007-08-15 18:20:41 · 3 answers · asked by funbirdnerd 2 in Medicine

I know that there are natural reasons that we record time the way that we do: the month = the moon as it orbits earth, the year = the earth revolving around sun, the day = one complete turn on the earth's axis - but how did the week come about. I heard, and believe that it is because of the Biblical creation story - but I'm curious as to any other ideas?

2007-08-15 18:20:30 · 11 answers · asked by Vanessa G 1 in Astronomy & Space

Plsss help .All that geek stuff and complex organic chemistry diagrams plus calculus and mechanics diagrams Wave forms how do I get those pictures made easily and write papers and books . Which software should I look for. I work on windows platform and feel comfortable with GUI and WYsWYG but all suggestion are mosst welcome. Thanks,

2007-08-15 18:17:02 · 4 answers · asked by Anonymous in Physics

I cant get this one.

20. All of the following statements are true except???
a. delta H is relatively temperature independent
b. delta S is relatively temperature independent
c. delta G is relatively temperature independent
d. K is temperature dependent
e. If delta G = 0 then K =1

2007-08-15 18:16:48 · 2 answers · asked by Kristin R 2 in Chemistry

Just a sequences I thought up. 10 points for the first correct answer as to the next number (hopefully with explanation).

2, 24, 126, 416, 1050

2007-08-15 18:11:44 · 2 answers · asked by God 3 in Mathematics

please help me to look these gene DNA and protein sequence how can I see help me and explain me everybody???????

2007-08-15 18:07:06 · 2 answers · asked by uka 1 in Biology