Science & Mathematics - 6 November 2007

2007-11-06 20:05:48 · 7 answers · asked by Anonymous in Weather

also i want some details of reincarnation based sites and books.

2007-11-06 20:00:20 · 24 answers · asked by Anonymous in Parapsychology

What depth of metal can radio waves penetrate? Does that depth change with frequency? How about Gamma-Rays and X-Rays?

2007-11-06 19:59:34 · 4 answers · asked by gabrielcuellar 1 in Physics

2007-11-06 19:46:19 · 14 answers · asked by Anonymous in Astronomy & Space

2007-11-06 19:41:00 · 3 answers · asked by Chandra M 1 in Engineering

Can I prepare 100ml of 3M sodium acetate solution by mixing 24.61g of sodium acetate anhydrous into distilled water then topped up to 100ml?

2007-11-06 19:35:59 · 3 answers · asked by pUn|sh3r 2 in Chemistry

I'm curious about people who are very good at math. How do you think? When you see a complex equation how do you think of it as? Does an image of how it looks on a graph automatically form in your mind? Can you easily distinguish where the different parts of it came from? Does it "talk" to you and tell you what it is, or is it a big mystery until you actually run some numbers through it?

How do you perceive things?

2007-11-06 19:35:36 · 8 answers · asked by justwondering 6 in Mathematics

the use of sterile insect technique in integrated insect management

2007-11-06 19:26:06 · 3 answers · asked by haleka 1 in Agriculture

2007-11-06 19:06:34 · 5 answers · asked by ARMIN 1 in Botany

i have a homework question. i have to solve for x. the problem is 10^x+3 = 6^2x..... so far i got (x+3)log10 = 2xlog6. how do i isolate x?

2007-11-06 19:03:07 · 3 answers · asked by Anonymous in Mathematics

2007-11-06 18:56:18 · 6 answers · asked by Rez 5 in Other - Science

2007-11-06 18:51:10 · 9 answers · asked by Gerrard Pancake 1 in Weather

high grade micaceous hematite

2007-11-06 18:50:45 · 1 answers · asked by madala s 1 in Earth Sciences & Geology

Why does wood creak? Is it because it gets wet? or because It's twisting?

2007-11-06 18:49:24 · 9 answers · asked by DeW the deR 2 in Engineering

Some days in the afternoons, when you observe the sky, you see the bright sun and faded moon. It is clear that the moon is directly exposed to the sun, but still only three fourth or less of moon is seen. When exposed to sun directly, I believe the faded moon needs to be full round, since the whole moon is exposed to sun. Why it is not a full moon at that time?

2007-11-06 18:43:23 · 10 answers · asked by rraghunathan_in 1 in Astronomy & Space

As a mathematical term, do you pronounce it as:

a) low-cuss
b) lock-us

I thought a) was correct...is there are difference in how American/British pronounce it?

2007-11-06 18:41:59 · 15 answers · asked by nandayo 1 in Mathematics

Can't remember how to do this, can someone explain and show work?

The length of a rectangular box is 3cm more than the width and the height is 1 cm more than half the width. The volume is 216 cm^3. Recall that V=lwh

a) Algebraically determine the dimensions of the box.

b) Graphically determine the dimensions of the box.

2007-11-06 18:38:21 · 7 answers · asked by Anonymous in Mathematics

2007-11-06 18:38:00 · 9 answers · asked by wezjamizon 1 in Physics

I recently bought a used Tasco Luminova reflector. I seem to be too incompetent to figure out how to use the equatorial mount. I also can't seem get anything to appear in the eyepiece, I've swept the sky randomly and can't seem to see anything at all, and before you say it I did remove the end cap.

2007-11-06 18:33:03 · 2 answers · asked by Salvador 7 in Astronomy & Space

2007-11-06 18:26:55 · 2 answers · asked by Mimi 2 in Biology

Thanks =)

2007-11-06 18:02:18 · 4 answers · asked by Pain Is All I Know 5 in Engineering

Deuterium(symbol D) is an isotope of hydrogen.

Which formula is incorrect for a deuterium compound?

(1) CD4
(2) C2D5OD
(3) CaOD
(4) DCl

The answer is (3)..why? Please explain..thanks.

2007-11-06 17:59:43 · 2 answers · asked by Anonymous in Chemistry

PANADOL
-Where does panadol come from and how is it produced?
- What are its historical origins (what was it initally used for?)

..yep its a project =|

2007-11-06 17:57:35 · 5 answers · asked by Carly 3 in Medicine

2007-11-06 17:54:32 · 2 answers · asked by Anonymous in Astronomy & Space

2007-11-06 17:51:04 · 18 answers · asked by Anonymous in Paranormal Phenomena

On complete combustion, 4.0g of a hydrocarbon give 11.0g of carbon dioxide and 9.0g of water.

What is the formula of the hydrocarbon?

(1) CH4
(2) C2H4
(3) C2H6
(4) C3H8

The answer is (1) CH4..why? I don't understand...please explain..thanks.

2007-11-06 17:49:47 · 1 answers · asked by Anonymous in Chemistry

Please tell me step by step nd the actual answer..thanks

Q:An antifreeze (aq) solution is 40.0% ethylene glycol (C2H602) by mass. The density of the solution is 1.05 g/cm3. Calculate the molality, molartiy, and mole fraction of the ethylene glycol.

help me~!!!

2007-11-06 17:43:29 · 1 answers · asked by Anonymous in Chemistry

This is the definition:
http://www.webassign.net/www28/symImages/2/5/3d2901ea25c4de1db1c01fa4fc587a.gif

This is the information given:
http://www.webassign.net/www28/symImages/5/0/511f2d8cdb5d33e354614d46e4fa37.gif

This is the answer:
http://www.webassign.net/www28/symImages/3/a/760fc431fd49351e81fe8fc0a03e85.gif

Why is it 1+10i/n (inside the radical) instead of just 10i/n?

2007-11-06 17:42:25 · 2 answers · asked by enhancedbycolor 2 in Mathematics

auroras are the Northen & southern lights that shine in the winter at antarctica and the Artic

2007-11-06 17:40:59 · 2 answers · asked by chrissy 2 in Weather

2007-11-06 17:39:13 · 4 answers · asked by padugapatti r 1 in Engineering