Science & Mathematics - 13 October 2006

Germanium is the element in the periodic table

2006-10-13 09:50:34 · 6 answers · asked by sexy mama 1 in Chemistry

I mean, when something is on fire, like an apartment building perhaps, the smoke is black, and when someone is smoking a ciggarette, the smoke is white. So what makes smoke different colors?

2006-10-13 09:47:05 · 9 answers · asked by Valkyrie 4 in Chemistry

2006-10-13 09:45:16 · 3 answers · asked by Martial Arts Freak 2 in Mathematics

2006-10-13 09:44:38 · 7 answers · asked by felicitydarkcloudsa 2 in Other - Science

I NEED TO KNOW THE EXACT ANSWER PEOPLE

2006-10-13 09:42:44 · 12 answers · asked by allyflowerpower 1 in Weather

2006-10-13 09:40:39 · 9 answers · asked by Anonymous in Biology

2006-10-13 09:38:56 · 7 answers · asked by h_moinian1981 1 in Astronomy & Space

I dont think that it was a coincidence that earth was about the right size for life to exist.

2006-10-13 09:32:43 · 13 answers · asked by ernie_casarez 4 in Astronomy & Space

just wondering if anybody knew

2006-10-13 09:31:16 · 24 answers · asked by deezee4sheezee 2 in Weather

i know its probably a stupid question, but hey....i dont know the answer

2006-10-13 09:27:31 · 12 answers · asked by Anonymous in Other - Science

science project and heat

2006-10-13 09:26:27 · 6 answers · asked by aysegul c 1 in Other - Science

Spring,Summer,Fall , or Old Man Winter?

2006-10-13 09:25:38 · 7 answers · asked by fxbeto 4 in Weather

where i am i need a gun licens to buy gunpowder sooooo i need a replacement

2006-10-13 09:24:15 · 8 answers · asked by bert_haney14 1 in Chemistry

A student has five nickels and four quarters in her pocket. She picks two coins at random. What is the
expected total value in cents of the coins?
(a) 125/9 (b) 250/9 (c) 30 (d) 25/2 (e) 15 (f) none of the others

i did (5/9) * .05 + (4/9 *.25 and got A

this is wrong the answer is B

2006-10-13 09:20:38 · 4 answers · asked by Diggler AKA The Cab Driver 1 in Mathematics

hey well i would have to say the only thing i really enjoy is mathematics, but what kind of career can i get with that subject? and also are there any sites that can give me like a career test or something? by the way are there any good paying jobs that you can get with mathematics?

2006-10-13 09:20:17 · 6 answers · asked by Wlr Steve 1 in Mathematics

2006-10-13 09:16:49 · 21 answers · asked by bevan c 1 in Biology

This is not my homework. This is from a sample test. I got 3/35 when i figured it out so i just selected 4/35. The answer is D. can anyone tell me how to do this?

A box contains 4 red balls and 3 blue balls. Four balls are selected simultaneously at random and their
colors are noted. A random variable X is defined to be the number of red balls minus the number of
blue balls. Find Pr[X = 2].

(a) 4/35 (b) 1/7 (c) 2/5 (d) 12/35 (e) 4/7 (f) none of the others

2006-10-13 09:16:47 · 6 answers · asked by Diggler AKA The Cab Driver 1 in Mathematics

2006-10-13 09:09:52 · 4 answers · asked by kiel_reid 1 in Medicine

A volume of 50.0 mL of 0.400 M HBr at 24.35°C is added to 50.0 mL of 0.400 M NaOH, also at 24.35°C. The final temperature is 27.06°C. Calculate the enthalpy change, H, in kJ for the following reaction:
HBr(aq) + NaOH(aq) --> NaBr(aq) + H2O(l)
(Heat capacity of the system is 0.418 kJ/?C.)

2006-10-13 09:08:06 · 2 answers · asked by Anonymous in Chemistry

2006-10-13 09:07:33 · 6 answers · asked by xboxturbo 3 in Chemistry

If the law of Conservation of Energy states that energy is neither destroyed, nor created, then what was the source of the energy for your proposed Big Bang? Yes, perhaps the universe could have collapsed on it's self to create the very center again IF your theory is true, but how did that energy get there in the first place for the first "Big Bang" if one ever even existed?

2006-10-13 09:07:16 · 12 answers · asked by Anonymous in Other - Science

x = -16 plus/minus root 16^2 - 4 x 0 x 63 / 2

Can someone please explain to me how to get -12 and -8 from this equation. I can get to 'exact roots' but can't figure out the rest. Thanks! :o)

2006-10-13 09:06:33 · 11 answers · asked by pixie.wings 1 in Mathematics

My boyfriend said that he heard on the Paul Harvey News that scientists somewhere were able to teleport a document 3 feet. I have a hard time believing this and can't find anything about it anywhere on the internet....just wondering, did anyone else hear the same thing he did?? or is he's hearing things? I think he misunderstood something.

2006-10-13 09:05:16 · 4 answers · asked by Tallulah 4 in Other - Science

2006-10-13 09:02:23 · 3 answers · asked by bert_haney14 1 in Chemistry

That mass of visitors (men, women and children) will travel here from all parts of the globe to participate in a single, exciting event, that's unequaled on Planet Earth.

2006-10-13 09:02:10 · 8 answers · asked by sweet_kitty_blue_eyes 2 in Geography

argentina has 2,736,690 sq.km. of land area
I want to know how many and what states it would take to cover the same amount of area.

2006-10-13 09:00:46 · 5 answers · asked by indianagirl 1 in Geography

im asking second time since i didn't get any convincing answer

in my dreams whenever i travel in train the railway track is not continuous. The train which im travelling goes on land for fraction of second in between and then continue in the track..

why... is it going to be the future or does it mean anything

2006-10-13 08:57:52 · 5 answers · asked by vivekprakas 1 in Other - Science

2006-10-13 08:57:15 · 15 answers · asked by darrilyn p 1 in Mathematics

2006-10-13 08:56:45 · 3 answers · asked by Alice G 1 in Other - Science

If you were a patent clerk and someone applied for a patent for a perpetual motion machine, would you deny them a patent without even looking at their design? After all, perpetual motion machines are supposed to be prohibited by the laws of thermodynamics. I'm just curious what you would do. (If you can't tell by the quality of this question, I'm a little bored today)

2006-10-13 08:52:18 · 18 answers · asked by Link 5 in Physics