Science & Mathematics - 12 November 2006

If a planet's average daytime and nighttime temperatures differ by about 20 degrees celsius, what fact could you deduce about that planet?

2006-11-12 10:01:16 · 4 answers · asked by victimofthekillers 1 in Astronomy & Space

An ideal gas occupies a volume of 2.2 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container. = 5.65e19

If the pressure is reduced to 2.6 10-11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container?

2006-11-12 10:00:38 · 1 answers · asked by mastersource2005 5 in Physics

2006-11-12 10:00:37 · 2 answers · asked by Gypsophila 3 in Biology

2006-11-12 10:00:24 · 7 answers · asked by Anonymous in Astronomy & Space

2006-11-12 09:59:59 · 5 answers · asked by victimofthekillers 1 in Astronomy & Space

if you know a site with diagrams that would help, thanks.

2006-11-12 09:58:29 · 10 answers · asked by tess 2 in Engineering

2006-11-12 09:58:27 · 4 answers · asked by victimofthekillers 1 in Astronomy & Space

im doing a research paper on this topic cant find any good websites if you know of any please share them with me thanks so much

2006-11-12 09:57:29 · 13 answers · asked by cookie 2 in Zoology

2006-11-12 09:53:19 · 5 answers · asked by Anonymous in Biology

I need to know how a beehive is like a cell. Like the queen bee is like the nucleues because they both control everything. So if u can do that to all the other things in a cell like the cytoplasm or whatever it's called. 10 points to the 1st person to give me most of the information i need. You need to have it like this:
queen bee-nucleus it controls everything that goes on in there.

2006-11-12 09:52:02 · 2 answers · asked by taz 2 in Biology

Now that i got your attention, i need some info on cobalt. I'm not lazy it's just that i got mixed info and i would like for my info to be right for my report.
I need:
the color and characteristics
date and where discovered
and if possible
where you can find it

2006-11-12 09:48:02 · 2 answers · asked by Anonymous in Chemistry

2006-11-12 09:47:48 · 2 answers · asked by Meow 2 in Earth Sciences & Geology

What is the current administration's views on adult stem cell research? What advantages do they see in this research?

2006-11-12 09:47:25 · 2 answers · asked by mhardman345 1 in Medicine

2006-11-12 09:46:45 · 12 answers · asked by Anonymous in Physics

This is a hard question and I don't know the answer to it.

2006-11-12 09:45:45 · 3 answers · asked by Nicey L 1 in Engineering

2006-11-12 09:45:23 · 10 answers · asked by slightly disturbed 2 in Weather

2006-11-12 09:44:45 · 4 answers · asked by Niceyguy 2 in Biology

A Particle moves on the ellipse 9x^2+16y^2=144 such that dx/dt =4y. FInd dy/dt. At what point is dy/dt a maximum

2006-11-12 09:43:54 · 2 answers · asked by hippiechic2241 1 in Mathematics

Please help with this problem. If you do not want to give me the answer, then explain the steps to get the answer. I cannot figure this out.

2006-11-12 09:40:58 · 17 answers · asked by Hairdresser4you 3 in Mathematics

How do you graph or what is the answer for graphing
Okey it says Graph the line with the equation! y = 3x -4

Can any one please solve it!

Only serious answers PLEASE!!!!!!!

2006-11-12 09:40:36 · 7 answers · asked by Anonymous in Mathematics

2006-11-12 09:37:13 · 4 answers · asked by Anonymous in Other - Science

I was just reading the Wikipedia article on the Kiang, after seeing the creature featured in the BBC TV series "Planet Earth".

I was a little confused by something that was stated:

"The kiang (E. kiang) is related to the onager or Asiatic Wild *** (E. hemionus), and some authorities classify it as a subspecies of onager, E. hemionus kiang, though recent molecular studies indicate that it is a distinct species."

I was under the impression that speciation is defined at a physiological level - i.e. speciation is considered to have occurred when two populations are no longer able to interbreed and produce fertile offspring.

So, HOW do you tell that E.kiang is a different species from E. hemionus on the basis of a molecular study? Are they simply talking about chromosomal number (which isn't really molecular)? Estimated %age difference in sequence would seem a fairly meaningless way to define a new species.

I'm quite confused - can anyone shed light on this for me?

2006-11-12 09:36:20 · 5 answers · asked by the last ninja 6 in Zoology

2006-11-12 09:35:58 · 12 answers · asked by Anonymous in Mathematics

2006-11-12 09:35:28 · 4 answers · asked by 0HES0 2 in Chemistry

What is the purpose of yawning?

2006-11-12 09:34:52 · 7 answers · asked by Anonymous in Biology

if so wouldnt it be cool under-water!!!

2006-11-12 09:32:59 · 4 answers · asked by swfan1991 1 in Other - Science

2006-11-12 09:32:50 · 9 answers · asked by Anonymous in Geography

Can you rewrite the following in simplified radical form

It goes like /''''''''
8
(that is a bar notation who ever dosent get it)

Please ONLY SERIOUS AND WRITE ANSWERS!!!
Thank you!

2006-11-12 09:31:12 · 3 answers · asked by Anonymous in Mathematics

is the space shuttle really obsolete?

2006-11-12 09:30:47 · 7 answers · asked by Dimitri VanHorn 1 in Astronomy & Space

i wan to no

2006-11-12 09:30:03 · 8 answers · asked by pookies_rule 1 in Astronomy & Space