Science & Mathematics - 9 December 2007

2007-12-09 10:35:59 · 3 answers · asked by Anonymous in Chemistry

soical studies problem

2007-12-09 10:34:42 · 2 answers · asked by M N 1 in Astronomy & Space

imagine that right now there is another world, on the other side of the sun that has people living on it just like us but who have develop completely different. Do you think its possible?

2007-12-09 10:33:50 · 16 answers · asked by Anonymous in Astronomy & Space

the weak don't make it. why do we insist on saving all the weak and sick humans ? they bring the rest of us down.
something to be learned from the spartans ?

2007-12-09 10:32:35 · 10 answers · asked by dawn666annapolis 6 in Zoology

Please!

2007-12-09 10:31:44 · 9 answers · asked by Anonymous in Astronomy & Space

2007-12-09 10:29:18 · 5 answers · asked by wbcruel 1 in Weather

2007-12-09 10:26:06 · 4 answers · asked by Madison 3 in Earth Sciences & Geology

Given ln 2 = 0.693, ln 3 = 1.099, and ln 5 = 1.609, for which integers between 4 and 10 (include 4 and 10) can natural logs be found using only four function calculator? List the logs and show work.

ex. ln 4 = ln (2*2)

2007-12-09 10:19:03 · 2 answers · asked by Anonymous in Mathematics

f(x)= √x
g(x)= 1/(x-2)

2007-12-09 10:18:41 · 1 answers · asked by Anonymous in Mathematics

How would you solve these equations by factoring and applying the zero-product property?

1) x^2-256=0

2) 6x^2-x-1=0

3) 7x^2-2=5x


How would you use factoring and the zero product property to the find the zeros of these quadratic functions?

1) 2x^2+3x-5

2) 2x^2+3x-2


Thanks so much. I'm sorry I keep asking questions I'm just having a ton of trouble with math this year.

2007-12-09 10:17:00 · 1 answers · asked by Anonymous in Mathematics

2007-12-09 10:13:20 · 10 answers · asked by Alejandro Jr. N 2 in Earth Sciences & Geology

and can u give me a little information if possible
ii got to write a report on erosions caused by wind

2007-12-09 10:07:48 · 5 answers · asked by Anonymous in Geography

I'm sorry about all the math questions but I just don't get math! If you leave an answer please show the work with it so I can try to understand it! Thankss =]

2007-12-09 10:05:53 · 6 answers · asked by Shawnaa =D 2 in Mathematics

The first celery stalk is placed in a 25C solution dye.(water and food coluring)
The second celery stalk is placed in a 10C solution dye. (water and food colouring)
The third celery stalk is placed in a 40C solution dye.( water and food coluring)

What do you think would happen to each one of them.

2007-12-09 10:05:27 · 2 answers · asked by Anonymous in Botany

2007-12-09 10:02:25 · 6 answers · asked by mgail123 1 in Botany

All this hype about doomsday is indeed very interseting.. Im not going to say much about it because I dont know whats to occur but, If 2012 does I guess I will be celebrating my life and possible death.. Who knows.. anyways, what should I do for my Bday on that fateful day?

2007-12-09 10:02:19 · 11 answers · asked by Anonymous in Astronomy & Space

2007-12-09 10:02:11 · 3 answers · asked by Anonymous in Biology

3. For f(x)=2x-11, find f(2)

2007-12-09 09:58:45 · 9 answers · asked by ashley n 1 in Mathematics

2007-12-09 09:57:45 · 1 answers · asked by Anonymous in Chemistry

please answer with a good explanation.

2007-12-09 09:56:41 · 4 answers · asked by Anonymous in Earth Sciences & Geology

After Mr. Stingy died, his lawyer read the will to his family. He left half of his estate to his wife and $50,000 to his son. The remaining fortune was to be split in this way: half of what remained went to his caddy, half of what remained after that was set aside for the care of his pet iguana, and the remaining $8,000 went to his favorite charity. What was the value of Mr. Stingy's estate?
______________________________________________
I kno the answer is 124,000 [i think]
but can anyone tell me the steps to solve it, or how they solved the problem.

and if its not too much, what are the variables?

2007-12-09 09:54:52 · 11 answers · asked by BahamaBabi 1 in Mathematics

Stress causes the brain to siganl the release of stress hormones, one of which being adrenaline/epinephrine. Adrenaline increases heart rate as part of the 'fight or flight' responce to stress. Would the easiest and cheapest way for me to measure stress be to measure heart rate? What device would i need? Where would i get the device, how much would it cost, etc.?

Thank you!

2007-12-09 09:54:39 · 6 answers · asked by i ♥ sarcasm 4 in Medicine

2007-12-09 09:54:36 · 2 answers · asked by jessejames2nice 1 in Earth Sciences & Geology

Please give your resuls in minutes and seconds travelled at the speed of light.

1) Venus
2) Mars
3) the asteroid belt
4) Saturn
5) Jupiter
6) Uranus
7) Neptune
8) Orcus
9) Quaoar
10) Sedna
11) Eris

2007-12-09 09:51:49 · 3 answers · asked by Roy Nicolas 5 in Astronomy & Space

1) Where do the 2 hydrogens bond to the sulfate ion? I know that sulfate has a tetrahedral geometry - 4 oxygens surrounding a central sulfur - so I'm assuming the hydrogens bond to two of the Os. But if so, which 2 do they pick? Adjacent ones or opposite ones? And maybe the Hs bond to just one of the Os! I really have no idea.

2) It *is* true that what is generally considered to be "sulfuric acid" is actually "H2SO4 gas dissolved in water," correct? If so, what's the name for H2SO4(g)? Just hydrogen sulfate?

2007-12-09 09:51:38 · 2 answers · asked by AxiomOfChoice 2 in Chemistry

im writing a story and i need other ways you could die in the sun other than dehydration... help???

2007-12-09 09:50:32 · 11 answers · asked by Anonymous in Earth Sciences & Geology

I understand why we see (the light bouncing off object and back to our eyes). But as this light defines the shapes of objects. What tells us what colour these are. And why can't colour blind people and and animals see the same?

2007-12-09 09:48:52 · 4 answers · asked by exkillonator 2 in Physics

t/f. a colorful pattern appears when a mica sheet is placed between polaroid sheets caused by the interference of double refracted light beams through the mica sheet.

2007-12-09 09:46:40 · 1 answers · asked by Anonymous in Physics

Vincent has type A blood and his mother has type O blood. What is his genotype?

or [similar question]:

Christine has type B blood and her father has type O blood.
What is her genotype?

The blood type genetic problems are really confusing me. How do you figure out their genotypes?

2007-12-09 09:46:26 · 7 answers · asked by Anonymous in Biology

I.e. a sunfower might follow the sun with a near 150o angle, but is it roughly the same angle with any kind of plant?

2007-12-09 09:45:54 · 1 answers · asked by Roy Nicolas 5 in Botany