Science & Mathematics - 4 November 2007

what are the two most abundant elements in the sun?

what is the differential rotation in reference to the sun?

what causes Granulation in the sun?

ho do we know that sunspots are magnetic phenomena?are the hotter or cooler than their surroundings?

what is the he proton-proton chain>why does it need a high temperature?

what is absolute visual magnitude?

in a binary system,would the more massive star be closer to the center of mass?farther?at the center of mass?

what is a white dwarf?a super star?a main sequence star?what type is our Sun?

why are proto stars different to observe?

whats special about the great nebula in orion?


why does the main sequence have a limit at the lower end?

where are stars born?

--------------it would really help me if can answer any of the questions listed, i have tons of hw and i cant find these answers.....thanks so much

2007-11-04 13:35:55 · 4 answers · asked by Allie 1 in Astronomy & Space

just as physicists have determined the half lives of all the elements, can we assume there's is such a thing as a millionth life for each element as well? and would that mean that 500,000 millionth lives is equal to that of one half life? certainly, it would be much easier to measure a millionth life for an element whose half life is on the order of millions of years.

2007-11-04 13:34:51 · 4 answers · asked by just curious (A.A.A.A.) 5 in Physics

Which way would the plane fly for the shortest distance, east or west?

2007-11-04 13:32:45 · 5 answers · asked by Marie 2 in Geography

The equilibrium constant (Kc) for the reaction
2HCl(g)<===>H2(g) + Cl2(g)
is 4.17x10^-34 at 25 C. What is the equilibrium constant for the reaction
H2(g) + Cl2(g) <===> 2HCl(g)
at the same temperature?

2007-11-04 13:32:25 · 4 answers · asked by ~b0wL_aDDiCt~ 2 in Chemistry

When I worked at an answering service, one lady who worked there said her grandfather had once worked with the Corps of Engineers.

That when they were drilling underneath the ground where Bonneville Dam is now located, the Corps discovered an underground river. She said her grandfather spoke often about this. She said he said the river was found to be wider than the Columbia River and the depth was unknown.

Has anyone any supporting information?

Thanks

2007-11-04 13:31:59 · 2 answers · asked by Ms. Balls 3 in Earth Sciences & Geology

can i nurture a small indoor garden using hydroponic lights or does it matter what type of plants i'm talking about?

2007-11-04 13:31:48 · 2 answers · asked by Allergic To Eggs 6 in Botany

2007-11-04 13:29:47 · 5 answers · asked by jokersrage2 1 in Mathematics

2007-11-04 13:27:38 · 4 answers · asked by Richard D 1 in Astronomy & Space

2007-11-04 13:25:29 · 15 answers · asked by wes r 1 in Mathematics

1)The direct distance between city A and city B is 200 miles. The direct distance between city B and city C is 300 miles. Which could be the direct distance between city C and city A?
A)550 miles B)650 miles C)50 miles D)350 miles

2)The image of point (3,4) when reflected in the y=axis is A)(3,-4) B)(4,3) C)(-3,-4) D)(-3,4)

3)When the point (2,-5) is reflected in the x-axis, what are the coordinates of its image? A)(-5,2) B(-2,5) C)(2,5) D)(5,2)

please help me!!

2007-11-04 13:24:07 · 4 answers · asked by Anonymous in Mathematics

2007-11-04 13:21:48 · 5 answers · asked by Anonymous in Astronomy & Space

Why is it hard for people including me to grasp the concept of a universe that just existed even before Earth was created and before that how did the universe come to be? Did it just happen? It's weird even talking about it but want to know your thoughts.Doesn't this point to some sort of creator?

2007-11-04 13:20:10 · 5 answers · asked by Anonymous in Astronomy & Space

2007-11-04 13:19:22 · 4 answers · asked by The Ans 3 in Mathematics

2007-11-04 13:19:04 · 3 answers · asked by Nicholas 1 in Biology

2007-11-04 13:18:58 · 3 answers · asked by Anonymous in Weather

I know that one of the astronauts vomit when going through the atmostphere. I need to know who and why.

2007-11-04 13:17:42 · 4 answers · asked by Crazyone100 2 in Astronomy & Space

at what height will the stream strike the building....how i do look for height?

2007-11-04 13:13:12 · 2 answers · asked by Wayne S 1 in Physics

2007-11-04 13:12:49 · 3 answers · asked by Anonymous in Mathematics

There is too much ambient light in Richmond, VA for me to get a good view of the sky. I've driven out to Louisa and Hanover in order to find a spot without a lot of extra light, but then the surrounding trees get in the way.

Where is a spot I can drive to (within an hour's drive) that is dark enough and clear of obstructions so that I can view the sky? Also, it must be publicly accessable. (I have no need to get arrested for stargazing!)

http://news.yahoo.com/s/space/20071026/sc_space/dramaticcometoutburstcouldlastweeks;_ylt=ApHQi9qKx8r3x7gXgcnalnVxieAA

2007-11-04 13:12:00 · 3 answers · asked by rec4lms 6 in Astronomy & Space

What will be its new resistance when it is shortened by (a) cutting it in half or (b) doubling it over and using it as "one" wire?

2007-11-04 13:11:54 · 3 answers · asked by nancy c 1 in Physics

Similarly, what two things can be done to increase the current in an electrical circuit?

2007-11-04 13:09:39 · 3 answers · asked by nancy c 1 in Physics

2007-11-04 13:09:26 · 2 answers · asked by Sam 2 in Biology

A hydrocarbon was analyzed to be 5.7 mass percent hydrogen and 14.3 mass percent hydrogen. At 26 degrees Celcius and 75 torr pressure a sample with a volume of 1.13 L had a mass of 1.904 grams. Determine the molecular formula.

2007-11-04 13:09:19 · 2 answers · asked by Dan S 1 in Chemistry

choices: -14, -7 ,14, or -3

2007-11-04 13:08:54 · 7 answers · asked by Nae 1 in Mathematics

2007-11-04 13:08:22 · 6 answers · asked by Kevin S 1 in Astronomy & Space

So as my teachers and I have discussed mass and energy are very intertwined, and often they cannot be separated. I.E. bullet goes through a wall b/c of its energy, but without the bullet to carry the energy nothing would happen. So, that being said, how does and enzyme reduce the necessary activation energy without losing some of its original mass?

Thanks much.

2007-11-04 13:07:09 · 2 answers · asked by matthew s 2 in Chemistry

Is there any other womens from another PLANTS.then why...

2007-11-04 13:05:09 · 6 answers · asked by daark 3 in Astronomy & Space

Please answer the following question: log 39 i squared to the power of x base 7 arguement squareroot of 9908 to the cuberoot of 5i.

2007-11-04 13:04:32 · 1 answers · asked by Abhinav R 1 in Mathematics

They don't want to investigate and if they do.. any research they do is kept top secret. Why?

2007-11-04 12:59:19 · 6 answers · asked by Marie 2 in Astronomy & Space

help help help

2007-11-04 12:55:15 · 6 answers · asked by hotty girl 2 in Mathematics