Science & Mathematics - 26 November 2007

There are at least 9 elements from the periodic table that in Latin translate into the names of certain colors or shades of color. This is due to the fact that these elements, when discovered were found in compounds that had these colors. what are the names of 4 of these elements, their Latin names, and which colors they represent?

2007-11-26 14:28:20 · 1 answers · asked by Anonymous in Chemistry

Are glomerular capillaries more permeable or less permeable than other capillaries? MORE
Why is this important?

Is the blood pressure within glomerular capillaries high, low or average?
Why is this important?

2007-11-26 14:28:04 · 3 answers · asked by Anonymous in Biology

Find all solutions of the equation tan^5 x – 9 tan x = 0.
The answer is Akpi where k is any integer.


So i tried solving it, and it didn't work out so well. please help! thank you!

2007-11-26 14:27:18 · 1 answers · asked by iloveLA 2 in Mathematics

I have read that it kills people because of the final oxidation product of ethylene glycol which is oxalic acid. But oxalic acid is in some teas and some people drink massive amounts of tea and i don't see them dropping dead. Others have said that it is an like an alcohol and disrupts the central nervous system much more than ethanol. And there is no real definite answer as to why is kills a person. Also some say its because of oxalic acid deposits of calcium stop the kidneys from extracting urea and other chemicals thus leading to renal failure but this process is a bit slow and thus not the quick mechanism of death.And another reason is that it causes metabolic acidosis which would cause somebody to breathe rapidly, not really killing you unless its too acidic but that would have to be a pretty low ph.So i would like to know the real cause of death stage by stage and what causes death and not just a heart attack but the reasons behind it and what not.Im curious and it has bothered me

2007-11-26 14:27:02 · 0 answers · asked by Anonymous in Biology

math dividing fractions

2007-11-26 14:25:42 · 8 answers · asked by Corey K 1 in Mathematics

2007-11-26 14:24:15 · 12 answers · asked by zain s 2 in Astronomy & Space

2007-11-26 14:23:58 · 1 answers · asked by aestheticxmemory 1 in Geography

Just thinking outside the box here...

Many studies worldwide and even by our own FDA have found that many previous conceptions of the "ill side effects" of Marijuana are indeed false. Most notably, the misconception that Marijuana kills brain cells.

http://paranoia.lycaeum.org/marijuana/facts/mj-health-mythology.html

What I'm wondering is, why is the lack of motivation considered an "ill side effect"?

Perhaps it is the "human condition" that is the side effect of living in this high pressured world of materialistic ownership and status enhancement. Could it be possible that the lack of motivation people experience when high is actually a similar benefit, akin to the helpful anti-anxiety and increased appetite experienced by smokers when using prescribed medicinal Marijuana?

2007-11-26 14:23:27 · 7 answers · asked by wsdmskr825 2 in Medicine

To do with "Large area prone to regular flooding" starting with BL and the last letter R? HELP!!

2007-11-26 14:23:03 · 2 answers · asked by Anonymous in Weather

is it a star or a planet?
the one im talking about is east of the moon, and im in florida.
(dont know if that helps)

anyone know a good website that would help me with these sorts of questions?

2007-11-26 14:22:03 · 11 answers · asked by jonas t 1 in Astronomy & Space

2007-11-26 14:18:21 · 5 answers · asked by Anonymous in Mathematics

2007-11-26 14:17:28 · 6 answers · asked by Ace of Spades 5 in Physics

2007-11-26 14:17:06 · 2 answers · asked by bilbofrododrizzt 1 in Earth Sciences & Geology

Please answer with much detail as possible and try to send me the website from which the info is from if possible!

2007-11-26 14:16:11 · 2 answers · asked by Anonymous in Earth Sciences & Geology

"You were accidentally served a salad at your Aunt Tutu's house over Thanksgiving that contained leaves of an experimental spinach plant. All we know is that the plant had received a treatment of 3H (tritium) and that it (3H) has been found in the sweat (H2O) released from your body as a by-product of aerobic cellular respiration. Provide a plausible but detailed explanation as to how the tritium made its way into your H2O? Be specific in your explanation. Hint: The plant came from the lab of Dr. Van Niel.

Help Please!! I don't understand the question!!

2007-11-26 14:14:54 · 5 answers · asked by Anonymous in Biology

what are the ways of increasing and decreasing friction

2007-11-26 14:14:46 · 4 answers · asked by giselle 1 in Physics

2007-11-26 14:13:19 · 7 answers · asked by Elizabeth S 1 in Mathematics

Hi, I have two problems to pose. The first one was problem 27
on the 2007 FAMAT( see http://mathgod.com/mathcomps/interschools/fall2007/
and the second one is related to a question recently posed by
(Ω)kaksi _guy.
Anyway, here they are:

1. If n = 4 I get 4 2 3 2 4 3 1 1
If n = 5 I get 3 5 2 3 2 4 5 1 1 4
I don't get anything for n = 6 or 7
What should I get for n = 8?

2. Compute the definite integral
∫(-π/2..π/2) cos 2x dx/(1 + e^(sin(x)).
The limits are -π/2 to π/2.
I ran this through an online program to
evaluate definite integrals and it seems the value of
this integral is 0. Prove it!

2007-11-26 14:07:32 · 2 answers · asked by steiner1745 7 in Mathematics

Roughly how much hp do you gain per lb of weight dropped?

2007-11-26 14:04:04 · 3 answers · asked by gtfr85 2 in Engineering

Can someone please help me in solving the following problems? You don't have to tell me the answer, but can someone guide me in getting the correct answer? I have notes on it, but they aren't very good ones. :[

1] Can you check if this is right -
N2 + 3H2 ---> 2NH3
How many grams of NH3 can be produced from the reaction of 28g of N2 and 25g of H2?
- Is it 1.99g NH3 & 74.25g NH3?
- And how do I found out how much of the excess reagent in that problem is left over?

ANNNDDD ... Mg + 2HCl ---> MgCL2 + H2
Is "What volume of hydrogen at STP is produced from the reaction of 50.0g of Mg and the equivalent of 75g of HCl?" a different format of the first question except w/ different numbers?

Mass-Mass

2KClO3 ---> 2KCl + 3O2
How many grams of potassium chloride are produced if 25g of potassium chlorate decompose?

Also, some questions use the word reaction instead of decompose; is that the same thing? Would I solve it the same as I would to the decompose ones?

2007-11-26 14:03:53 · 3 answers · asked by meh 2 in Chemistry

:) thanks to whoever gets it

2007-11-26 14:03:47 · 1 answers · asked by meow 2 in Botany

2007-11-26 14:03:39 · 4 answers · asked by Anonymous in Earth Sciences & Geology

What constant acceleration is required to increase the speed of a car from 10 mi/h to 50 mi/h in 10 s?

would I set up two equation equal to each other?

2007-11-26 14:02:58 · 2 answers · asked by m_carl 1 in Mathematics

11. What do geologist call an area where there is mostly one kind of topography?

12. What is a mountain range?

13. Compare the elevation of a coastal plain to that of an interior plain?

14. The south Island of New Zealand lies at about 170 degrees E. What hemisphere is it in?

15. Could countour lines on a map ever cross?

16. Wich would be more likely to show a shallow, 1.5-meter-deep depression in the ground: a 1 meter countour interval or a 5- meter countor interval. Explain

2007-11-26 14:02:50 · 2 answers · asked by love_moon_bb 2 in Earth Sciences & Geology

2007-11-26 14:02:36 · 3 answers · asked by Anonymous in Astronomy & Space

a. ATP synthesis b. cell growth c. cellular respiration d. enzyme activity e DNA replication
2. if a cell has 20 chromosomes how many chromatids will be present during prophase?
3. what event typically begins in anaphase & is completed by the end of telophase? a. alignment of chromosomes @ cell equator b. packing of DNA into well defined chromosomes c. dna replication d. cytokenesis
4. how many nuclear membranes must form when a single dividing cell reaches telophase? a. 4 b. 1 for each chromosome c. 2 d. 1 for each pair of chromosomes e. 1
5. what is 1 of the differences between cell divion in plant 7 animal cells? a. plant cells seperate chromosomes by attachment to the plasma membrane b. there is no dna replication before cell division in plant cells c. plant cells do not use a mitotic spindle to seperate chromosomes d. plant cells seperate by growth of a cell wall & membrane in the middle of the cell e. in a plant cell, there is no nucleus around the chromosomes

2007-11-26 14:00:23 · 3 answers · asked by 4N6girlie 1 in Biology

Two motorboats on opposite shores of a river start moving towards eachother, but at different speeds. Please neglect all other factors like acceleration , turn-around time, and current. When the two boats pass one another the first time, they are 700 meters from one shoreline. Each continues to the opposite shores, then turns around and begins moving towards one another again. When they pass the second time, they are 300 meters from the other shoreline. (Their speeds, though different, remain constant). How wide is the river???

2007-11-26 13:57:39 · 1 answers · asked by Anonymous in Physics

For the parametric equations x= 2 cos t and y = sin t . . . . find the rectangular equation by eliminating the parameter.

PLEASE HELP AND EXPLAIN THIS TO ME, HAVING A HARD TIME, THANKS!!!

2007-11-26 13:56:45 · 1 answers · asked by Anonymous in Mathematics

2007-11-26 13:56:41 · 7 answers · asked by Anonymous in Weather

True or false?
_6. (Relief) measures a landform's height above sea level
_7. Going north or south of the (prime meridian), the distance to one of the poles is 90 degrees.
_8. Computers ise data about Earth's surface that has been (digitized), or put in the for of numbers.
_9. If contour lines ona slope are spaced (wide apart), then the slop is very steep.
_10. Contour lines that form a closed look maked with dashes indicate a (depression).

2007-11-26 13:54:32 · 1 answers · asked by love_moon_bb 2 in Earth Sciences & Geology