Science & Mathematics - 12 September 2007

2007-09-12 23:59:29 · 4 answers · asked by bilinmz 1 in Chemistry

2007-09-12 23:57:53 · 3 answers · asked by bilinmz 1 in Chemistry

2007-09-12 23:57:28 · 13 answers · asked by Anonymous in Earth Sciences & Geology

assuming that mankind still will be feasting on pigs, cows and chickens many millions of years from now, what mechanism do you foresee these animals evolving that will protect them from extinction, or has the evolutionary process pretty much stopped?

2007-09-12 23:53:53 · 7 answers · asked by Wayne G 5 in Zoology

name the ******COUNTRY**** that is found at the following locations. These must be exact.

1.21°N 121°E
2.37°S 62°W
3. 45°N 105° E
4.15°s 15°E
5. 65° N 20°W
6. 53°N 20°E
7. 5° N 65°W
8. 43°S 146°E
9. 37°N 128°E
10. 30°N 128°E
11. 0°Lat 25° E
12. 20°N 80°E
13.10°N 85°W
14.20°S 46°E

2007-09-12 23:52:00 · 2 answers · asked by Anonymous in Geography

I need multiplication shortcuts on two-digit numbers. Examples are multiplying two digit multipliers to three digit multiplicand. Please help me with this!

2007-09-12 23:49:20 · 7 answers · asked by Anonymous in Mathematics

i need to transform 3\4 into percentage...
help

2007-09-12 23:49:15 · 11 answers · asked by avia b 2 in Mathematics

2007-09-12 23:49:07 · 12 answers · asked by Anonymous in Weather

because if the thermometer are put near the surface,. it will show ground temperature.
where do i put the thermometer?
and what the height to place it?

2007-09-12 23:43:12 · 2 answers · asked by _Me_ 1 in Weather

2007-09-12 23:40:55 · 10 answers · asked by bexter 1 in Astronomy & Space

explain neglecting friction and taking into account the time of operation of the engines.

2007-09-12 23:40:33 · 2 answers · asked by daineyjinh 1 in Physics

If electrons constantly vibrate(uncertainty principle), and since moving charges emit photons (from the virtual photons left behind), shouldn't all electrons be constantly giving "free" energy?

2007-09-12 23:40:32 · 3 answers · asked by worried person 1 in Physics

2007-09-12 23:39:52 · 6 answers · asked by mesun1408 6 in Physics

had ringing in both ears. I could hardly hear my own voice. A few hours later this improved, but I don't hear the same as I did, with the same sensitivity as before. Did I cause permanent damage to my hearing?

2007-09-12 23:25:36 · 5 answers · asked by Anonymous in Medicine

we have this project to gather information and stuff about this topic...does anybody know how to or what kind of experiment do i need to do..?? please... or could you give any info about the experiment... i think it doesn't loss mass if you include the gases or soot that it produce when lighted..

2007-09-12 23:24:56 · 4 answers · asked by Ren2x 2 in Physics

What metals help cure people?

2007-09-12 22:58:32 · 2 answers · asked by James O 2 in Medicine

I would like to ask how to have a reverse rotation, but the forward rotation still be active... For instance forward rotation will take place at sometime, then after 5 hours reverse rotation will take place... vice versa...

How can I do this?

2007-09-12 22:49:14 · 5 answers · asked by ken p 1 in Physics

Hi Can any one tell me who all can do blood collection according to international law. I know phlebotomist or specimen collectors are assisgned to collect specimen but incase they are not available Is it the doctors duty to collect as I have heard nurses are not allowed to put IV line or collect blood unless in case of emergency. Can anyone confirm this and give me some sites for the legal rules and regulations of doctors and nurses. Thank you

2007-09-12 22:28:45 · 5 answers · asked by Devil's Angel 2 in Medicine

Find the x, y and z intercepts of the plane -2y+z-1=0

2007-09-12 22:24:44 · 3 answers · asked by nadanilnone 1 in Mathematics

everyone says it's never going to happen, but i'm sure i could use my friends machine shop and fix up the parts i need when i find them.

2007-09-12 22:01:11 · 17 answers · asked by Anonymous in Astronomy & Space

1)why might animals or plants have bright colours?
2) why do some animals need a territory?
3)In woodland, what might plants be competing for?
4) why do some plants spread seed as away from themselves as possible ?
5) how animals learn not to eat certain plants.?
6) what might it be necessary for some preditors to be camouflageed?
7)what condition in a desert are likely to be difficult for plants and animals?
8)why do whales have thick layer of blubber under the skin ?
9)state one way in which a catus is adapted to conserve water .
10)suggest two reason why some animals in the desert bury themselves ib the sand during the day .
11) suggest one advantage of a pride of lions causing a herd of animals to run before deciding which one to attack.

PLEASE ANSWER MY QUESTION I WILL GIVE U LOADS OF POINTS THANKS

2007-09-12 22:00:18 · 2 answers · asked by Justin_rokc 2 in Zoology

How many watts per square meter of light is hitting the surface of the Earth from a full moon?

2007-09-12 21:49:40 · 2 answers · asked by Anonymous in Astronomy & Space

Would a bullet explode if you swallowed it? I'm guessing the sharp point will tear you up and kill you even if the bullet stays in one piece, but would the bullet go off? The metal would dissolve in the stomach acid, wouldn't it?

2007-09-12 21:44:01 · 5 answers · asked by Anonymous in Chemistry

Is it really going to be safe to rebuild New Orleans? Isn't it still going to be below sea level? They have 100,000 homes built on volcanic ash by Mt. Ranier, and homes built on sand bars in North Carolina. If someone builds their house on an obvious potential hazard area - the area gets wasted several times, and then someone builds a house again there, then why sould our government keep bailing out people who choose to live in a place that isnt' safe. I realize how much these people need help. But if you camp your house by a volcano then isn't it partly your fault if your house ends up buried in ash? It's just insane... I'm not trying to be insensitive, but people need to think. right?

2007-09-12 21:24:18 · 2 answers · asked by art_flood 4 in Earth Sciences & Geology

It's the same size as a star moving slowly and some blinks that look like a star.

no 2nd light found on each one moving star, i don'e believe its a plane because i can tell the different but 1 of my friends says because its flying realy high...which made it the same size as the stars and i see 4 of it every 5minutes yesterday night at around 7pm Australia time

2007-09-12 21:20:47 · 10 answers · asked by Anonymous in Astronomy & Space

2007-09-12 21:07:59 · 3 answers · asked by Anonymous in Zoology

2007-09-12 20:59:17 · 3 answers · asked by Tommy 2 in Astronomy & Space

just a short expaination needed?

2007-09-12 20:58:53 · 2 answers · asked by Anonymous in Physics

Also why is H2 shown in ionic form 2H^+ (with the subscript removed) and SO4^2- . Does it matter if 2H^+ was written as H2^+ when in ionic form with the SO4^2- ?

2007-09-12 20:53:30 · 3 answers · asked by Gideon 1 in Chemistry

prove
1-sin2x
------------- = tan^2[pi/4 -x]
1+sin2x


2. if A & B be the two distinct two real numbers satisfying the equation acosx +bsinx = c then prove that
1. sin(A + B) = 2ab
---------
a^2 + B^2

2. tan (A+ B) = 2ab
-----------
a^2 - b^2



if A+B+C =pi then prove that


cosA + cos B + cosC
------------ ---------- ---------- = 2
sinBsinC sinCsinA sinAsinB
& also prove that

cos4A + cos4B + cos4C = -1+4cos2Acos2Bcos2C

2007-09-12 20:42:56 · 2 answers · asked by Anonymous in Mathematics