Science & Mathematics - 8 July 2007

2007-07-08 20:49:12 · 22 answers · asked by Anonymous in Astronomy & Space

Are they safe to swim with? Are they attracted to blood? For example if I had a cut, would they sense the blood and be attracted to it??

2007-07-08 20:37:03 · 2 answers · asked by whatever123 2 in Zoology

Do everyone agree the fact that the space in the universe is infinite, or it is a gimmic or illusion

2007-07-08 20:34:04 · 7 answers · asked by karthik 1 in Astronomy & Space

i havent had the chance of giving blood this year but i do plan on it. i care about people and i would like to give blood more often. i am curious: how many times per year can we give blood????

2007-07-08 20:31:43 · 18 answers · asked by ILoveGreen ZipZapZop 4 in Biology

find the dimensions of a rectangle a with the greatest are whose perimeter is 30 feet.

2007-07-08 20:22:04 · 6 answers · asked by °†¿ÐámñéÐ?†° 2 in Mathematics

2007-07-08 20:12:33 · 2 answers · asked by Anonymous in Geography

Approximate to the nearest tenth, the real root of the equation f(x) = x^3 - 4 = 0

2007-07-08 20:05:37 · 2 answers · asked by °†¿ÐámñéÐ?†° 2 in Botany

2007-07-08 20:04:31 · 10 answers · asked by Anonymous in Astronomy & Space

2007-07-08 19:50:53 · 8 answers · asked by London Man 4 in Astronomy & Space

Identify the following conic. That is, is it circle, parabola, hyperbola, or ellipse? Show why.

x^2 - 4y^2 - 4x - 24y = 48

2007-07-08 19:41:42 · 2 answers · asked by Sara 3 in Mathematics

Long ago, ages ago, the worlds climate was unsteady. The weather was wakky, and the atmosphere was new. But then, time went on, animals died, plants died, and over time... fossil fuels became more and more abbundant. Then the climate calmed, Then we started taking the fossil feuls out of the earth, and the ozone, had a hole punched through it. So what if, with out the fossil fuels, the earth can't function properly. So of course the world would slowly over time start to go crazy. But then, with the hole in the ozone, it quickened the pace. So the earth started to malfunction, so thats why everything is the way it is, By taking out the fossil fuels can only hurt the earth, cause without the fossil feuls the earth can't function properly.

2007-07-08 19:27:29 · 9 answers · asked by Anonymous in Earth Sciences & Geology

2007-07-08 19:24:54 · 2 answers · asked by LULU 1 in Mathematics

Have you ever reached a rainbow's end, well have you ever looked up at the clouds and if you did what kinds of shapes did you see?What wired shapes did you see, tell me and explain your answer, 10 points for the longest answer.

2007-07-08 19:23:58 · 10 answers · asked by DEGENERES77UAL IS BI AND PROUD!! 2 in Weather

can u help me about formula oh trigonometry

2007-07-08 19:22:33 · 4 answers · asked by wirods c 1 in Mathematics

2007-07-08 19:21:34 · 2 answers · asked by Anonymous in Weather

2007-07-08 19:16:15 · 8 answers · asked by Anonymous in Weather

What I mean is, do all stars have their own revolving planets?

Can more then one star be in a single solar system? (I thought the very definition of solar system meant 1 star + revolving planets...?

If not, what would that body of space be called?


Apologies for the somewhat vague question - my spacebar is broken so typing is rather a pain. This question alone has taken me 10 minutes to write.


I'm 15 BTW.


any response will be greatly appreciated..

2007-07-08 19:06:53 · 9 answers · asked by Anonymous in Astronomy & Space

I after an experiment that meets the following criteria:
- I record observations on and can record numerical results
- I can complete in one day
- There's a lot of information on
- Equipment is easy to get
- Won't cost much
- It'll be reasonably easy to do
- I can back up scientifically
- Can compare my results with others (e.g. do a few experiments to determine which one is the best/most effective)

2007-07-08 19:02:05 · 3 answers · asked by Anthony 4 in Other - Science

2007-07-08 19:00:23 · 2 answers · asked by LULU 1 in Mathematics

Which has a better conductivity for electricity:
Pure Copper or a Copper Alloy?

Why and any references? thank you. =)

2007-07-08 18:57:45 · 3 answers · asked by c00ki3m0n5tr 1 in Physics

lol

2007-07-08 18:56:11 · 5 answers · asked by macho650 1 in Physics

give checks for the following two questions.

5. use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32* 28' 30"

6. use the method explained in Art. 23 to solve the triangle for which the given parts are a=27, b=21, and c=24.

2007-07-08 18:53:44 · 1 answers · asked by . 2 in Mathematics

Other then Planets and Stars I mean does it have an end and if so do we just run into a wall lol??? Any Idea's??

2007-07-08 18:53:18 · 10 answers · asked by macho650 1 in Physics

2007-07-08 18:51:59 · 12 answers · asked by nasavin 1 in Astronomy & Space

1. derive the identity for sin 3x in terms of sin x

2. using the double-angle formula, find sin 120*

2007-07-08 18:49:20 · 3 answers · asked by . 2 in Mathematics

a. sin 2x=2 tan x/1+tan2 x

b. sin 2 0/ sin 0 - cos 2 0/cos 0= sec 0

c. sin (x+y) cos (x-y) +cos (x+y) sin (x-y)=sin 2x

d. cos 2x= cot2 x-1/cot2 x+1

2007-07-08 18:48:19 · 3 answers · asked by . 2 in Mathematics

2007-07-08 18:46:05 · 11 answers · asked by Anonymous in Biology

Which has a better conductivity for electricity: Thin or Thick Copper? Why? any references? thank you. =)

2007-07-08 18:44:54 · 4 answers · asked by c00ki3m0n5tr 1 in Physics

Like my eyes are brown, were other peoples eyes can be green, blue, hazle, violite blue, or if your albino-red. What causes this?

2007-07-08 18:44:34 · 7 answers · asked by Jordan 2 in Biology

For instance quartz-Si02 is considered to be essentially "purely" covalent but with a ionic behavour as well. . I do understand that bonds between the same non metal elements are pure covalent such as Cl-Cl and O-O. is the bond NaCl purely ionic? I am not sure.
Any help would be appreciated.

2007-07-08 18:43:58 · 3 answers · asked by Gideon 1 in Chemistry