Science & Mathematics - 22 December 2007

If I get the paper I am working on published, I'll have an Erdos number of 4.

2007-12-22 03:02:55 · 7 answers · asked by Amy W 6 in Mathematics

2007-12-22 02:49:16 · 7 answers · asked by Rodney L 1 in Physics

2007-12-22 02:44:07 · 3 answers · asked by Anonymous in Physics

Usually, the number of votes for a question in Astronomy & Space is no more than a few -- maybe 6 at most. I voted for a couple of questions this morning in the "vote undecided questions" section and discovered they had dozens of votes. For example, take a look at this:
http://answers.yahoo.com/question/index;_ylt=AkUP1SHNVQurCk9rTvcp5OMBxgt.;_ylv=3?qid=20071221172454AAUV2rj
It had 69 votes at 7:30 AM PST.

What's happening?
1) Massive new interest in A&S?
2) Computer hack into system?
3) Other guesses?

2007-12-22 02:36:42 · 6 answers · asked by Dr Bob 6 in Astronomy & Space

If you were in an elevator, 400ft high, and the cable snapped, if you jumped just before the ground collision, would you be ok? (Assuming the ceiling is 20ft so you have no chance of hitting head)?

The way I think of it is that you transfer your force to the elevator.

2007-12-22 02:33:12 · 4 answers · asked by Anonymous in Physics

Like in Pirates of the Caribbean

2007-12-22 02:30:49 · 5 answers · asked by T.M. 6 in Geography

2007-12-22 02:30:01 · 20 answers · asked by l1timm1993 2 in Paranormal Phenomena

If this is at 7AM EST...what time is that in CST?

2007-12-22 02:29:34 · 5 answers · asked by zeradiostar 2 in Geography

We all know due to excess of N and P the causes algal bloom.But what excatly happens when the alga absorbes the Nitrogen or Phosphorus?Where does it get incorporated?

2007-12-22 02:27:43 · 5 answers · asked by osanctum 3 in Botany

FRAN and friends.

2007-12-22 02:25:06 · 4 answers · asked by Anonymous in Weather

The determinant of the matrix

1-c^2 , 2-c
1+c ,1

(a) 1 – c
(b) –1– c
(c) c – 1
(d) c + 1

2007-12-22 02:24:04 · 6 answers · asked by ABD A 1 in Mathematics

a female horse = a mare
a female Donkey/Burro = a jenny
a fertile male horse = a stallion
a sterile ( cut ) male horse = a gelding
a fertile male donkey/burro = a jack
a sterile ( cut ) male donkey/burro = ???????
a jack/mare cross = a mule
a stallion/jenny cross = a hinny????????
Though both are genetically sterile does a cut male mule have a term different from an uncut one? Also same question about the male hinny?

2007-12-22 02:18:48 · 6 answers · asked by mongo40y 1 in Zoology

I want to make sure I'll be okay to carry my nasal allergy spray on board with me - the bottle says net filled weight 16 g. Thanks!

2007-12-22 02:11:37 · 6 answers · asked by Kylie 3 in Mathematics

2007-12-22 02:11:34 · 7 answers · asked by Jose Allan B 1 in Physics

Given that the points A and B have coordinates (7, 4, 4) & (2, -2, -1) respectively, use a vector method to find the value of cos AOB, where O is the origin.
Prove that the area of ∆AOB is 5√29/2.

I’ve done 1st portion of this problem. But in second portion, how can I calculate the area of ∆AOB?

2007-12-22 02:09:18 · 5 answers · asked by geton 1 in Mathematics

7 - [13 - {-2 - 6 (6 of -5)}] = _________

2007-12-22 02:08:48 · 14 answers · asked by Mohit T 2 in Mathematics

Use Descartes's Rule of Signs and the Rational Zeros Theorem to find all the real zeros of each polynomial function.
Use the zeros to factor f over the real numbers.

(1) f(x) = 4x^4 + 15x^2 - 4

(2) f(x) = x^4 - x^3 - 6x^2 + 4x + 8

2007-12-22 02:08:36 · 3 answers · asked by journey 1 in Mathematics

2007-12-22 02:07:24 · 5 answers · asked by closet_inseminator 2 in Weather

If you build a time machine in the future, will you travel back to time to tell people time machines CAN really be made? Promise yourselves cause maybe you'll see your future-self popping out from nowhere telling he/she just built the time machine...

2007-12-22 01:57:24 · 11 answers · asked by Anonymous in Astronomy & Space

Please post a link to where you found your information.

2007-12-22 01:54:38 · 2 answers · asked by Anonymous in Astronomy & Space

2007-12-22 01:47:39 · 8 answers · asked by rekha c 3 in Physics

2007-12-22 01:46:14 · 17 answers · asked by Anonymous in Astronomy & Space

2007-12-22 01:45:03 · 3 answers · asked by Anonymous in Astronomy & Space

2007-12-22 01:36:29 · 1 answers · asked by vaibhav m 3 in Chemistry

2007-12-22 01:32:50 · 4 answers · asked by Anonymous in Botany

For example; A 200 lb man standing on the ground, how much would he weigh traveling on an airplane at 30,000 ft? At what point would he start to weigh less?

2007-12-22 01:11:40 · 6 answers · asked by Paul G 1 in Physics

Actually, i believe that a light year is the dist travelled by light in 1 yr.. right?
this means that the dist. of 9500000000000 km !!

ok.. i accept this too.. Then there is a big question that arises..

The distance between our earth and the neighboring star (not sun) is say, 10 light years .. This means that the light took 10 yrs to reach earth from that star. So what we see in the sky is not the planets or stars to be actually present there NOW.. in this case, the star must been there 10 yrs back.. presently we wudnt know where it is..

is this right?

2007-12-22 01:11:00 · 30 answers · asked by Anonymous in Astronomy & Space

2007-12-22 01:09:14 · 2 answers · asked by ANTHONY M 3 in Weather

What kind of math is used to (for example) make a 'flyby' of the planet Neptune and then take photos of it? I never cease to be amazed at how after so many years after launch, a sattalite can rendevous as programed.

2007-12-22 01:05:41 · 7 answers · asked by Juda Ben Hur 4 in Astronomy & Space

i know animals have emotions but can they think logicaly (well logical for them)

2007-12-22 00:58:26 · 25 answers · asked by Jenny 2 in Zoology