Science & Mathematics - 4 February 2007

People say they weigh ten stones or something, but what is one stone's equivalence to pounds?

2007-02-04 03:11:03 · 3 answers · asked by Anonymous in Other - Science

2007-02-04 03:08:19 · 30 answers · asked by Anonymous in Geography

Sometimes sky also appears red, yellow, orrange, pale purple, reddish brown, even pale purple colour. Why?
Why also the clouds look white? I suppose it shows transparent or pale blue color.

2007-02-04 03:07:34 · 12 answers · asked by li mei 3 in Physics

2007-02-04 03:07:16 · 6 answers · asked by Spot 1 in Other - Science

2007-02-04 03:06:21 · 9 answers · asked by 1982 3 in Astronomy & Space

How rare or abundant is lead?

2007-02-04 03:04:58 · 6 answers · asked by ♥Roberta. 5 in Chemistry

What are the advantages of MEASAT-3? MEASAT 3 has how many transponder at Ku band and C band?

2007-02-04 03:03:28 · 2 answers · asked by sandrea83 1 in Engineering

express the answer as a common fraction.

2007-02-04 03:02:51 · 5 answers · asked by akdh;flkasjd;lfkj; 1 in Mathematics

"No slow learners take this course"?

could it be "All slow learners take this course" or perhaps "Some slow learners take this course"? How to find this out using mathematical logic?

2007-02-04 03:01:23 · 5 answers · asked by Anonymous in Mathematics

2007-02-04 03:00:40 · 3 answers · asked by ♥Roberta. 5 in Other - Science

I NEED A WEBSITE THAT SHOWS ME EXACTLY HOW TO BUILT IT. I NEED IT ASAP. I NEED IT IN 2 MIN OR LESS

2007-02-04 03:00:24 · 4 answers · asked by Anonymous in Engineering

2007-02-04 02:59:50 · 3 answers · asked by Mary L 1 in Chemistry

log base 2 of 56 minus log base 4 of 49. i know the answer is 3 but i need to show my work. please help!

2007-02-04 02:59:27 · 3 answers · asked by kELY 3 in Mathematics

2007-02-04 02:58:29 · 8 answers · asked by JOEG 1 in Astronomy & Space

ABC is a triangle M & N are two points on this triangle; locate these points through this equations vactor AM = 1/2 vactor AB - vactor AC
& vactor AN = - vactor AB + 1/2 AC

2007-02-04 02:57:29 · 2 answers · asked by dima 2 in Mathematics

2007-02-04 02:57:19 · 9 answers · asked by tracey r 1 in Astronomy & Space

2007-02-04 02:56:26 · 6 answers · asked by tmac2 2 in Engineering

When you breath in helium it makes your voice go higher and I want to know why.

2007-02-04 02:55:23 · 7 answers · asked by lil_drummer_girl_83 2 in Physics

Has the earth's climate changed in the past? PLEASE EXPLAIN WITH AS MUCH FACTUAL BACKUP AS POSSIBLE.

2007-02-04 02:52:31 · 8 answers · asked by mgentryholt 2 in Earth Sciences & Geology

validity is..

can anyone explain it to me??

i'm a freshman in high school

2007-02-04 02:49:55 · 1 answers · asked by Lina 4 in Biology

1)JELL-O starts out as a liquid thn sets to a gel.wht would u expect to happen to the speed of sound in this material as the JELL-O sets?does it increase decrease or remain the same?

Some animal rely on an acute sence of hearing for survival and the visiable part of the ear on such animal is often relatvly to large.explain how this anatomical feature helps to increase the sensitivity of the animal’s hearing for low intensity sound.

Whn car is rest its horn emitsa frequency of 600 Hz.a person standing on the mddle of the street hears the horn with a frequency of 580 hz. Should the person jump out the wave?

2007-02-04 02:48:17 · 4 answers · asked by Kshitil 1 in Physics

For the following reaction the below data were measured.


2NO(g) + 2H2 (g) -----> N2 (g) + 2H2Og

Initial Concentrations (mol/L)
[NO] [H2]
0.10 0.10
0.10 0.20
0.20 0.10

Initital Rate of Formation of H2O (mol/Ls)
0.00123
0.00246
0.00492


What is the rate constant k for this reaction ?

2007-02-04 02:47:32 · 3 answers · asked by Anonymous in Chemistry

only the properties of natural numbers.
a)If nЄN and n^2 + (n+1)^2 = (n+2)^2, then n=3.
b)For all nЄN, it is false that (n-1)^3 + n^3 = (n+1)^3

2007-02-04 02:47:27 · 3 answers · asked by Anonymous in Mathematics

2007-02-04 02:46:48 · 3 answers · asked by MJN 2 in Engineering

saturns rings, our solar system even the milkyway galaxy are all relativly on flat. they seem like on a flat plane. i would expect stuff in space to exist in an area more widly disbursed such as like a globe. take the big bang as an example, an explosion in space would sent stuff out in all directions not just along a flat plane. so why are there so many flat shaped groupings in the universe?

2007-02-04 02:43:38 · 5 answers · asked by Anonymous in Astronomy & Space

2007-02-04 02:43:00 · 1 answers · asked by Beth H 1 in Zoology

2007-02-04 02:42:49 · 5 answers · asked by n 1 in Physics

Is there such gas that explodes or cathes fire with air? I know that acetylene explodes when highly pressurised

2007-02-04 02:42:09 · 7 answers · asked by Vincent P 1 in Chemistry

2007-02-04 02:40:07 · 3 answers · asked by Anonymous in Physics

2007-02-04 02:38:54 · 11 answers · asked by Anonymous in Physics