Science & Mathematics - 30 July 2007

People claim that after you have scuba-diving, you have to come up in the water to water surface slowly, can anyone explians that to me ?

2007-07-30 04:24:28 · 8 answers · asked by Anonymous in Other - Science

I am wondering what are all the options out there on becoming a medical diagnostic sonographer (Ultrasound) there doesnt seem to be many options. and the schools that i heard of have very limited space. I live in Ottawa, but am willing to move to other province.

2007-07-30 04:21:30 · 2 answers · asked by Anonymous in Medicine

I need more answers regarding the indication of a chemical change in a substance...an absolute example is "..the formation of bubbles"....or "...release of hydrogen".

What more can you guys give?

2007-07-30 04:15:51 · 7 answers · asked by Jed Stephen 3 in Chemistry

Here's my concept, impact from free fall will be absorbed by layering materials. I really wanted my project to be simple than from my classmates' designs. Anyway, here's the layers.. First, a medium sized box.. then inside are crumpled newspaper.. then a small sized box.. cotton inside with the egg covered with bubble film. Do you think the egg would survive? Actually I tested it from a 5 floor drop and it survived. But does anyone have tips on how to improve its structure. Thanks!

2007-07-30 04:12:09 · 7 answers · asked by Anonymous in Engineering

2007-07-30 04:09:24 · 6 answers · asked by Anonymous in Astronomy & Space

now that great white sharks roam our waters would it not be wise for us to protect ourselves against them and have them blown out of the water on sight before they kill us and our children.

2007-07-30 04:04:44 · 16 answers · asked by strathkinnessbilly 2 in Zoology

2007-07-30 04:03:25 · 3 answers · asked by daryl 4 in Astronomy & Space

2007-07-30 04:03:15 · 2 answers · asked by suraksha k 2 in Physics

When your driving along and you see the surveyors on the side of the road using the tripod things... what do they do?

2007-07-30 04:02:18 · 7 answers · asked by KidCuervo 3 in Other - Science

Prove that (1 + tan x - sec x)( 1 + cot x + cosec x) = 2
thanks!

2007-07-30 03:59:24 · 7 answers · asked by N.y.Rych 1 in Mathematics

More specifically, in the Phoenix area?

2007-07-30 03:53:51 · 2 answers · asked by absynthian 6 in Zoology

i don't get it...i have the answer key though.. please help.

determine the first 5 terms of the sequence.

T1=1, Tn-1+n, n>1
^the n-1 is tiny too :D
^the 1 up there is tiny

ya so please help!

the answer is 1, 3, 6, 10, 15 ( i think the answer key is right... )

2007-07-30 03:52:46 · 3 answers · asked by TT 4 in Mathematics

I live in wisconsin and I have never seen an all yellow duck, and the rest of her babies are the normal brown. How did this happen?

2007-07-30 03:49:31 · 4 answers · asked by Anonymous in Zoology

what it will take ??
i want to listen to radio stations which are having very weak signals at my town .when i take my radio @Top floor of my building it receives all fm stations correctly but when i take it inside my home downstairs it doesnt receive any thing . please help me in this. thanx in advance

2007-07-30 03:48:06 · 4 answers · asked by chetankudale 1 in Engineering

Received these complimentary seeds with an eBay purchase (I forgot where), with the label "Thorny tomato - edible fruit". Does anybody know G. species ? http://s186.photobucket.com/albums/x47/RScott-02/?action=view¤t=DSCN4080.jpg RScott

2007-07-30 03:46:55 · 3 answers · asked by Anonymous in Botany

2007-07-30 03:44:32 · 7 answers · asked by asker 1 in Engineering

I htink it should be an option to take the higher math. Its good for people if you plan on using it to further or better educate or self but to many others its just a waste of time.

2007-07-30 03:43:07 · 15 answers · asked by ~*[AnD]*~ 4 lyfe 2 in Biology

how does it grow what are its disadvantages?
does it have any advantages?

2007-07-30 03:34:54 · 4 answers · asked by Anonymous in Botany

2007-07-30 03:33:26 · 12 answers · asked by wat 1 in Astronomy & Space

apparently there was a mass extinction that killed 95% of life on Earth, (not the one that did in the dinosaurs) what evidence is there for this conclution? is there any theories on what caused it?

2007-07-30 03:32:57 · 12 answers · asked by Ste B 5 in Earth Sciences & Geology

A. 39/400

B. 390/400

C. 39/40

D. 39/4000

2007-07-30 03:30:24 · 8 answers · asked by exzizting@sbcglobal.net 1 in Chemistry

I think that "time" according to us egsists. But what i think is that time is not linear but a single dot with no length or width, meaning that everything happens at once, that would be why we made this concept of time to record the events that happen.
I could go on for hours but i wont to keep it short.

p.s. PLEASE COULD SOMEONE TELL ME HOW TO SPELL EXSIST

2007-07-30 03:29:27 · 7 answers · asked by Jono 1 in Astronomy & Space

http://img73.imageshack.us/img73/558/math2ek3.jpg

Picture included of rhombus/units

2007-07-30 03:25:07 · 7 answers · asked by Adrienne W 1 in Mathematics

http://img503.imageshack.us/img503/9428/math1iw3.jpg

Picture of the parralleogram and units of measure.

2007-07-30 03:22:11 · 5 answers · asked by Adrienne W 1 in Mathematics

How do tubifex worms take in oxygen?

1. Breathe though gills?
2. Breathe by carrying air bubble?
3. Breathe through air tube?
4. Breathe though skin?

2007-07-30 03:18:00 · 3 answers · asked by Anonymous in Zoology

2007-07-30 03:14:15 · 5 answers · asked by Anonymous in Biology

2007-07-30 03:13:50 · 5 answers · asked by cuongnguyen4326 1 in Chemistry

Hey,I heard about it long b4!!!!!!!!!!!!!!!!!!!!!!

2007-07-30 03:13:49 · 8 answers · asked by Neo 2 in Astronomy & Space

Is it unethical for him to treat me knowing I have feelings for him?

2007-07-30 03:12:37 · 12 answers · asked by Anonymous in Medicine

2007-07-30 03:12:14 · 11 answers · asked by Anonymous in Astronomy & Space