Science & Mathematics - 17 October 2006

any square matrix into echelon form with all 1's along its main diagonal?

2006-10-17 08:58:30 · 2 answers · asked by Choad McChump 1 in Mathematics

2006-10-17 08:55:15 · 11 answers · asked by LondonNick 3 in Biology

This is either a magical event or an astrological event that we have been told is occurring today. It may also have something to do with Faeries.

2006-10-17 08:52:01 · 7 answers · asked by LAURA T 1 in Astronomy & Space

i really need this for my maths homework. plz help!!

2006-10-17 08:51:00 · 10 answers · asked by Anonymous in Mathematics

2006-10-17 08:50:59 · 5 answers · asked by ftoumeh79 1 in Mathematics

2006-10-17 08:48:51 · 12 answers · asked by Anonymous in Mathematics

Initial speed of 2.0 m/s
up a 24.0° incline
mass is 14 kg
Coefficient of kinetic friction is 0.20.

How far up the incline does it move? In m?

2006-10-17 08:46:52 · 3 answers · asked by activegirl 1 in Physics

Use the formula C (the speed of light) = Frequency times Wavelenghth (6.626 X 10 to the negative 34)

2006-10-17 08:45:59 · 1 answers · asked by Coki15 2 in Chemistry

2006-10-17 08:45:47 · 7 answers · asked by flavorlicious 2 in Astronomy & Space

2006-10-17 08:45:28 · 4 answers · asked by gasguzlr76 2 in Physics

A car travels 120km at a certain speed. If the speed had been 10kmh faster, the trip could have been made in 2h less time. Find the speed.

2006-10-17 08:44:28 · 7 answers · asked by Anonymous in Mathematics

2006-10-17 08:39:13 · 3 answers · asked by Anonymous in Physics

2006-10-17 08:35:15 · 4 answers · asked by toveysnake 2 in Other - Science

2006-10-17 08:34:07 · 1 answers · asked by stfreddy77 2 in Biology

2006-10-17 08:32:16 · 10 answers · asked by Anonymous in Earth Sciences & Geology

2006-10-17 08:31:01 · 3 answers · asked by Erin H 1 in Chemistry

2006-10-17 08:30:14 · 1 answers · asked by Ric J 1 in Biology

Note, that it's not the first man to get on the moon but in outer space

2006-10-17 08:28:14 · 5 answers · asked by Samuel_007 2 in Astronomy & Space

2006-10-17 08:25:35 · 6 answers · asked by Anonymous in Botany

For example, today we use programs such as autoCAD. did ancient engineers prepare comparable blueprints, with elevations, sections, etc?

2006-10-17 08:24:13 · 3 answers · asked by Anonymous in Engineering

If that were the case, let's say that we're standing in the middle of the Sahara desert. Shouldn't the sky be sand coloured above us. Wouldn't this 'reflective' sky reflect the colour of the surroundings?
By the way those 'prism' type answers are wrong too.
The simple answer is that air is slightly blue. Water is slightly blue too. The surface of water is reflective... look at a puddle.
The sky is NOT reflective.... look up... do you see your town reflected..NO!

2006-10-17 08:20:44 · 5 answers · asked by eantaelor 4 in Astronomy & Space

2006-10-17 08:20:10 · 10 answers · asked by Anonymous in Zoology

Does embalming involve formaline or formaldyhyde; how is it administered; how long does it deay or slow decomposition; and why is it done?

2006-10-17 08:19:33 · 1 answers · asked by Steven S 2 in Biology

2006-10-17 08:14:22 · 13 answers · asked by Anonymous in Physics

2006-10-17 08:10:10 · 3 answers · asked by shmexi keely 1 in Biology

i want to have a more reliable way to find out when the northern lights are going to be there.... there should be a way to predict it when the sun gives bursts of energy. please be serious and help me.

2006-10-17 08:08:19 · 4 answers · asked by Connor R 1 in Astronomy & Space

do u know there is a grid and i need to work out the 20th rectangle
it starts on the (1,1) and the coner of the firs number is (4,1) the coner of the second rectangle is (7,3) and the coner of the third is (10,5) so i need to work out the coner of the 20th rectangle plz help im really stuck on it HELP HELP HELP!!!!!!!!!!!!!!!!!!!!!

2006-10-17 08:06:20 · 4 answers · asked by kittypretty 1 in Mathematics

Considered remote by most, it has many thousands of miles of shoreline and more landmasses surrounded by water than the current population of over 60% of the recognized towns in the U.S. State of Texas.

2006-10-17 08:04:10 · 9 answers · asked by sweet_kitty_blue_eyes 2 in Geography

This question relates bto anyone who has seen the hunt for red october. The russian sub that conerey is on has a silent propulsion system on board making it possible to move undetected through the waters i think the system was something like a machine that sucked in water from the front and ejected it from the rear hence moving it foward. is it possible???

2006-10-17 08:03:40 · 22 answers · asked by Anonymous in Engineering

2006-10-17 08:00:21 · 6 answers · asked by Anonymous in Astronomy & Space