Science & Mathematics - 9 August 2007

Just curious, you know.

2007-08-09 02:52:20 · 10 answers · asked by Gabe Devlin 1 in Physics

2007-08-09 02:52:18 · 8 answers · asked by Anonymous in Chemistry

1. why the oxidation number of an element will affect its colour???
2. i thought chlorie is a poisonous element....but when combined with sodium (NaCl), it becomes safe to be consumed...why???

2007-08-09 02:50:49 · 2 answers · asked by Lady Poise 3 in Chemistry

I am looking for a type of pvc pipe that has slits in it. I do not know what it is called. the slits are 2-1/" long around the entire pipe and about 60 thousandths wide. Can anyone help????

2007-08-09 02:42:28 · 5 answers · asked by Miles J 2 in Engineering

magnet & other is magnetic material. How will you distuinguish between magnet & magnetic material without using any external devices?

2007-08-09 02:42:12 · 5 answers · asked by namesake 3 in Physics

I am a 1st Year Mechenical Eng student and i would like to go on any volunteer engineering project overseas. Do you know of any organisations that offer this..........................

2007-08-09 02:40:46 · 3 answers · asked by D-Boy 1 in Engineering

i am thinking of sending a parcel to phillippines ,is it safe ??

2007-08-09 02:39:27 · 3 answers · asked by shoopy213@yahoo.co.uk 2 in Geography

Let says i need to PUNCH a volleyball with the weight of 0.28kg at the angle of 68.8degree with a velocity of 9.5783m/s. Time taken is 0.75s and acceleration is 12.7712m/s^2. The maximum height of the ball must exceed 3.6m and a horizontal distance of 4.6m.
How do i calculate the collision force needed to carry out the above criteria ?

2007-08-09 02:24:36 · 1 answers · asked by Justin-san 2 in Physics

2007-08-09 02:21:41 · 9 answers · asked by crystalf 3 in Astronomy & Space

2007-08-09 02:15:47 · 4 answers · asked by John S2005 3 in Engineering

I thought the psychics out there could help us know how the miners that are currently trapped are doing?
I know that the famous psychic Sylvia Browne has made predictions about trapped miners before.
For the good psychics, this should be a relatively easy question I guess.

2007-08-09 02:09:34 · 6 answers · asked by madcat 5 in Paranormal Phenomena

2007-08-09 02:07:55 · 31 answers · asked by aganifire 1 in Geography

im a big procrastinator. its like 6 in the morning rite now and i have class in two hours. ive been looking over my notes and i got stuck on one parrt cause i dunno how i got my answer for that. its part of a question. so can anyone solve for the question mark:

.. pi/2-pi/3=?
..... 2*pi- pi/4=?

and tell me how u solved it plz

2007-08-09 02:07:26 · 5 answers · asked by xSELENEx 2 in Mathematics

Can any insulator start to conduct current after high voltage breaks it down?

2007-08-09 02:06:26 · 6 answers · asked by duh 2 in Engineering

I need to write an essay on this. Thus, i need two applications. It will be great if you have more. Hopefully, you can give me suggestions on some not so complicated stuffs.

Lastly, thanks.

Reply me soon!

2007-08-09 02:05:28 · 10 answers · asked by Anonymous in Mathematics

2007-08-09 02:02:31 · 5 answers · asked by Anonymous in Astronomy & Space

I have a roll of product that is 15" wide and 73' long and i need the square inches of this? Whit is the way to figure this?
Thanks ahead of time.

2007-08-09 02:01:24 · 6 answers · asked by Brooker S 1 in Mathematics

Do I do maths all day? Do I become well known like Michio Kaku? Famous like Einstein? Do I become a boring old man?

I want to become a theoretical physicist but I still haven't managed to find out what they actually do in their daily lives as theoretical physicists.

2007-08-09 01:57:33 · 3 answers · asked by worried person 1 in Other - Science

Nonsteroidal hormones such as glucagon and luteinizing hormone are _____.

2007-08-09 01:54:13 · 6 answers · asked by ♥Anonymous♥ 2 in Zoology

2007-08-09 01:47:36 · 5 answers · asked by Cleveo7 1 in Astronomy & Space

(and its family of planets)

2007-08-09 01:46:21 · 7 answers · asked by Cleveo7 1 in Astronomy & Space

2007-08-09 01:43:23 · 5 answers · asked by Cleveo7 1 in Astronomy & Space

2007-08-09 01:43:11 · 11 answers · asked by leera 1 in Chemistry

2007-08-09 01:42:16 · 9 answers · asked by Rmayana 1 in Astronomy & Space

2007-08-09 01:40:35 · 3 answers · asked by nyny 1 in Zoology

1.The equation y=b for some constant be represents a vertical
line. (2) The number of subsets of a set is never zero.(3)All whole numbers are natural numbers .(4) All irrational number is a terminating decimal. (5) all intergers are rational numbers.

2007-08-09 01:36:13 · 4 answers · asked by big red 1 in Mathematics

Last night, my husband found this huge bug in our basement. The bug was half dead in my husbands work area where he has been cutting wood. I took a few pictures and found out it is called a Brown Prionid. I tried to find some more info. on this bug but all I know is that it feeds on dead wood....hence laying in the wood scraps. If anyone has any more insight on this nasty bug...let me know. Will it lay eggs, has it already?

2007-08-09 01:33:49 · 2 answers · asked by Anonymous in Other - Science

imaginary numbers...help!

2007-08-09 01:27:20 · 8 answers · asked by Hippie Chick 2 in Mathematics

Question: what is domain of this function?

F(x, y)= (ln(x-6)) ^ln(y-5), x and y € R

2007-08-09 01:21:52 · 2 answers · asked by Asside 1 in Mathematics

2007-08-09 01:20:47 · 12 answers · asked by Anonymous in Astronomy & Space