Science & Mathematics - 17 September 2006

what does it mean if there is a throbbing sensation here?

2006-09-17 03:12:21 · 18 answers · asked by Anonymous in Biology

If you can please answer this question what do you use to measure:
the internal diameter of a test tube
the distance an athlete covers in a long jump

2006-09-17 03:10:45 · 8 answers · asked by Anonymous in Mathematics

is there any1 out there who gets the same feeling i do when thunderstorms are about.the natrual phenomenon so electrifying
give's me such a buzz the eerieness the noise the fear. now where i stay we dont get much thunderstorms(scotland)but when we do i just have to be out in it when ever1 else is hiding under the bed i would love to hear if any1 else gets the same feeling and tell me of there experience's of thunderstorms

2006-09-17 03:08:48 · 21 answers · asked by rusty red 4 in Weather

2006-09-17 03:06:04 · 4 answers · asked by Siraj 1 in Mathematics

2006-09-17 03:04:09 · 9 answers · asked by parasolx 1 in Other - Science

Could you tell me step by step on how do i solve or find x in the problem below:

n^3-8n^2+n+42

2006-09-17 02:59:31 · 8 answers · asked by coolkenny45 2 in Mathematics

This question is for field engineers working in construction.
1_do field engineers do a lot of scheduling and estimation in general?
2_what are the main responsibilities exactly, besides being on the field?
3_suppose someone starts as field engineer for a couple of years, would this experience really matter if that person wants to be transfered to an office to work as project engineer?

2006-09-17 02:59:17 · 2 answers · asked by joett8tt 1 in Engineering

Residential and commercial.

2006-09-17 02:57:11 · 15 answers · asked by Anonymous in Geography

2006-09-17 02:56:14 · 12 answers · asked by Beaulieu 03 1 in Geography

1. directly at the target
2. to the left of the target
3. diagonally from the target
4. to the right of the target
5. below the target
6. above the target

2006-09-17 02:56:03 · 11 answers · asked by xxlovexx 1 in Physics

2006-09-17 02:55:05 · 16 answers · asked by Beaulieu 04 1 in Biology

2006-09-17 02:54:52 · 14 answers · asked by ALOK G 1 in Astronomy & Space

1. at the end point
2. at the beginning point
3. at the top
4. somewhere at the middle height

2006-09-17 02:54:34 · 12 answers · asked by xxlovexx 1 in Physics

I read after 50,000 years carbon dating is inaccurate.

2006-09-17 02:49:38 · 6 answers · asked by Gingerbread Man 3 in Earth Sciences & Geology

2006-09-17 02:48:53 · 28 answers · asked by Anonymous in Astronomy & Space

How does the vertical component of a projectile’s motion compare with the motion of vertical freefall when air resistance is negligible?

a) identical to that of free fall

b) greater than that of free fall

c) it cannot be determined

d) less than that of free fall?

2006-09-17 02:46:10 · 4 answers · asked by xxlovexx 1 in Physics

2006-09-17 02:44:08 · 7 answers · asked by Drake 1 in Biology

2006-09-17 02:41:59 · 9 answers · asked by dconstruct6 1 in Biology

Are they renowned for being bad keepers of time? Please help!

2006-09-17 02:41:37 · 7 answers · asked by thelockeduplenore 1 in Other - Science

2006-09-17 02:41:22 · 13 answers · asked by MArwinne Trinidad 1 in Zoology

Please, if you don't know, or are just giving some fanciful 5 word answer, just don't answer

2006-09-17 02:38:34 · 9 answers · asked by Anonymous in Physics

I would start by giving you some facts, or at the least, theories, and then proceed to my question.

I) It is known that there are billions and billions of stars (Sorry for the poor Carl Sagan impression)
II) A majority of those stars has a good possibility of being simular to our sun.
III) Each Star, or sun, has the possibility of having planets revolving around it, simular to ours.

Keeping these "theories" in mind, how can anyone possibly deny that it is almost impossible for there not to be alien lifeforms out there?

I have been keeping up with some of the topics in the religion section, and those hard core religious people keep saying that we're the only life in the universe. I'm sorry, but that is so strange to me. So, I figured I'd ask here in the science section, all religions aside, and see what you guys have to say.

Is it fair to say that statistically speaking, there must be alien life forms somewhere else in the universe, considering the 3 statements above?

2006-09-17 02:31:19 · 20 answers · asked by Redvioletskydancer 1 in Astronomy & Space

A, B, C are collinear with coordinates a, b, c respectively. If b= -10, c= 4 and |AB|= 28, find |BC| and |AC|. how many answers are possible?

2006-09-17 02:25:41 · 4 answers · asked by haler 1 in Mathematics

Feynman proposed a path integral formulation of quantum mechanics based upon the principle of least action.

His postulates were:
1. The probability for any fundamental event is given by the absolute square of a complex amplitude.
2. The amplitude for some event is given by adding together all the histories which include that event.
3. The amplitude a certain history contributes is proportional to
exp((i / hCross) * action of that history )

My question is this - How did Feynman come up with his third postulate. Did he derive it? If so, how?

2006-09-17 02:24:58 · 6 answers · asked by ? 3 in Physics

1 divided by (9x²+12x+4)

how do you integrate that?

thanx

2006-09-17 02:23:26 · 6 answers · asked by vanille 1 in Mathematics

2006-09-17 02:17:45 · 16 answers · asked by Anonymous in Earth Sciences & Geology

K, L, M are collinear, and the coordinate of L is greater than M.
If |KM| = |ML| = 6 and the coordinate of M is 3, what are the coordinates of K and L?

pls tell and help me what to do step by step...

2006-09-17 02:15:09 · 4 answers · asked by haler 1 in Mathematics

2006-09-17 02:14:00 · 14 answers · asked by Aditya 1 in Mathematics

I have a scientific calculator and i was wondering about the Rand(#) button, if you press it and then keep pressing = then it churns out random numbers between 0.001 and 0.999 these numbers look random enough but i was wondering how does the calculator come up with these random numbers i.e how is it random. This in turn got me thinking, such as how do computer games that have dice, or cards etc choose what dice or cards to give you? How does a computer think "Randomly?"

2006-09-17 02:10:58 · 4 answers · asked by Paul B 1 in Mathematics

1. 3 points are coplanar, they are collinear - TRUE
2. 2 lines intersect, they are coplanar - FALSE
3. 2 lines do not intersect, they are not on the same plane - TRUE
4. 3 planes intersect, their intersection is a point - FALSE
5. lines containing points M and N lies in one plane - FALSE
6. 3 points determine 3 distinct lines.
7. a point is between 2other points, then 3points are collinear-TRUe
8. 2 non-coplanar lines cannot intersect - FALSE
9. a line and a plane that do not intersect are paralleL - TRUE
10. 2 lines that do not intersect are skew - FALSE


tell me if my answers are correct and pls. "correct me if im wrong"

thank you so much...

2006-09-17 02:06:22 · 5 answers · asked by haler 1 in Mathematics