Science & Mathematics - 25 December 2006

2006-12-25 17:10:34 · 18 answers · asked by prince 1 in Biology

wether space has an end

2006-12-25 17:07:32 · 15 answers · asked by Aruna N 1 in Astronomy & Space

A bottle of Louisiana hot sauce accidentally froze and broke spilling the contents into a coin tray. A Canadian Loonie (1$ coin) was encased in the hot sauce ice. Upon thawing the hot sauce turned green (Cu?) and the face of the coin was erased. Answers from Louisiana appreciated.

The hot sauce came from a patent agent that I have business with. Should I find another agent ;->?

2006-12-25 17:06:55 · 3 answers · asked by d/dx+d/dy+d/dz 6 in Chemistry

A and B are the two points on the curve 3x^2 + y^2 = c. N(1,3) is the mid point of segment AB. The perpendicular bisector of segment AB intersects the curve at points C and D.

1)Find the domain of c and the equation of the line AB.
2)What value of c can guarantee that points A, B, C, and D are on the same circle?

2006-12-25 17:05:55 · 3 answers · asked by sahsjing 7 in Mathematics

If a person who is non-traditional in age, but can play piano, flute, sing well, paint well (received prizes), write well (received prize), and loves to acquire new skills...it this at all frowned upon? It isn't like I became professional in any of the above.. But was just born with inborn proclivities and others I tried to acquire willfully.

I see that excellence is prized in medical school, if especially you are applying at a later age... But if not mediocre, but skilled, yet not "excellent", how to capitalize on this fact that I am a serious jack-of-all-trades?

2006-12-25 17:05:34 · 4 answers · asked by summation 2 in Medicine

how does it affect the system if the fluid is laminar or turbulent?

2006-12-25 17:05:13 · 1 answers · asked by alex05mx 2 in Chemistry

How efficient is a rocket at using its fuel to move an object. Assuming you put a rocket on a car with limitless fuel and the weight of the fuel isn't a concideration, is it more efficient then the car engine?

2006-12-25 17:05:04 · 3 answers · asked by Michael K 2 in Physics

http://img228.imageshack.us/img228/8715/untitledkl4.jpg

2006-12-25 17:01:41 · 3 answers · asked by casedood2k4 1 in Mathematics

this was what my notes says:

AlCl3(s) + 6H2O(l) --> [Al(H2O)6]3+(aq) + 3Cl-(aq)



[Al(H2O)6]3+ (aq) --> [Al(H2O)5(OH)]2+ (aq) + H+ (aq)

Al3+ has high charge density, able to polarise and weaken O-H in H2O of [Al(H2O)6]3+(aq) to release acidic H+.

!!!!! can someone kindly elaborate more?

also... how Al3+ is produced? i cant see it in the equations...
what is high charge density?
what is hydrolysis?

thx... thx...

2006-12-25 17:01:02 · 3 answers · asked by Anonymous in Chemistry

Please explain your answer. I do not want a simple "yes", "no" or "maybe". That won't help me understand the subject at all. Do not direct me to a website too. Tell me what YOU think. Thanks for responding.

26 Dec 2006, 2:00pm, Philippines

2006-12-25 17:00:36 · 11 answers · asked by Alien Life Form 3 in Other - Science

If not,why can Penguins live in Antartica?

2006-12-25 16:58:12 · 8 answers · asked by Abdul Kalam 2 in Physics

I am 16 years old and I was accepted into NHS(National Honor Society) part of this is a requirment to volunteer. I decided to tutor at the local elementary school. The children started short division. The only problem with this is I was never taught or I dont remember how to do Short Division, I only know long division. I feel really stupid and I really dont know who to ask. So could you guys help me out. I need it more so i can help the children, I usually do my division in my head. Please help me learn.

2006-12-25 16:57:01 · 7 answers · asked by uofmeuchre 3 in Mathematics

plc devices, symbols and their functions

2006-12-25 16:56:43 · 1 answers · asked by carmi 1 in Engineering

What I mean is if a police officer wants to know how long it takes you to drive one kilometre (or mile), they would need to record the time it takes you to travel an actual km or mile. If they have clocked your speed at a radar point they should really be talking metres-yards/sec, since this is all they have seen you travel. Speed or velocity is a measure of distance divided by time. If you have travelled slowly for half a mile, and accelerated past a radar trap, could you not argue that your average speed over a whole mile was within the limit. Also you could not be convicted of speeding at a precise time, say 4.00PM, because at a point in time you do not travel any distance

2006-12-25 16:47:44 · 8 answers · asked by Anonymous in Physics

can u also answer this,

can a basic oxide react with an acidic oxide?

if yes, what are the products? and is there any exceptions?

if no, why?

thx alot :)

2006-12-25 16:46:26 · 5 answers · asked by Anonymous in Chemistry

Honestly, I've spent many years in philosophical depression and didn't care diddlysquat for life for many of the formative years of academic life (in college). How to explain this without making it sound like I am "justifying" or "making excuses"? Please, only sensitive replies, as this is a regetful topic for me.

2006-12-25 16:45:20 · 5 answers · asked by summation 2 in Medicine

2006-12-25 16:43:12 · 2 answers · asked by dawaser 1 in Mathematics

2006-12-25 16:34:06 · 9 answers · asked by kamal k 1 in Zoology

I've heard people almost look condescendingly on older students in medical school. Why is this so? Do they think older students are less intelligent for pursuing their dream at a later age? Just curious the reason.

2006-12-25 16:28:55 · 19 answers · asked by summation 2 in Medicine

2006-12-25 16:15:07 · 2 answers · asked by rey2boy 1 in Astronomy & Space

2006-12-25 16:10:36 · 11 answers · asked by riptor1987 2 in Astronomy & Space

Hi, I got some question about science. Can your guys help me?Thanks

1. When radiation fog occurs, people often say that the fog will"burn of" later in the morning or afternoon. You know that water can't burn, so what does it mean to have the fog"burn off"?(where does the fog go?)

2.Who do the windows inside a car" fog up
when several people are riding in it on a cold day? how does a " defroster" work to get rid of the "fog"? (What does a defroster produce?)

3.why doe radiation fog only in the low lying areas(think about desnity and what is needed to form a cloud.)

4.What has caused the "hole" in the ozone layer?

5.Where is the "hole" located?

6.How is the"hole" measured and located?

7.Can anything be done to fix the"hole"?

8.How are the people who live under the "hole" affected?

2006-12-25 16:10:08 · 3 answers · asked by Anonymous in Earth Sciences & Geology

At the equator, the earth is spinning at 25,000 mph. A 747 cruises around 500-700 mph. How come when a plane is flying in the direction that the earth is spinning, it isn't actually going backwards? (and a side question that goes with this one; how come when you throw a tennis ball in the air in a plane, it doesn't smash through the back?)

2006-12-25 16:05:50 · 15 answers · asked by jon 2 in Physics

why?

2006-12-25 15:58:30 · 10 answers · asked by chinna u 1 in Physics

Can someone out there tell me what a 2.62 grade point avarage would be.

2006-12-25 15:58:11 · 11 answers · asked by Red Sox 1 in Mathematics

Mr. Hansen adds enough water to 20 ounces of a 90% solution of acid to make the result a 60% solution. When he finds that he needs an 80% solution, he then adds enough acid to get the desired result. How much acid does he add?


Please explain in full detail.

2006-12-25 15:56:01 · 5 answers · asked by michchristine 2 in Mathematics

yes.why?if not?why?

2006-12-25 15:52:40 · 7 answers · asked by chinna u 1 in Astronomy & Space

2006-12-25 15:49:16 · 4 answers · asked by uriel 1 in Engineering

2006-12-25 15:47:29 · 3 answers · asked by uriel 1 in Engineering

and a ball is dropped down the hole, what would happen?

2006-12-25 15:46:54 · 13 answers · asked by mynaamynmuil 2 in Physics