Science & Mathematics - 23 November 2007

2007-11-23 13:02:36 · 4 answers · asked by bear idiot s 1 in Biology

Explain how this can be true.

2007-11-23 13:01:51 · 6 answers · asked by Anonymous in Physics

I was making my own "Colloidal" silver by electrolysis of distiled water using Silver electrodes. I heat up 8 oz of water to boiling point and then put electrodes and attach to 24V DC. Silver is Sterling Silver 925. I was stirring up water every 10 min. After a hour water turns bright transparent yellow color which is normal by some standards. Then I added 3 drops of H2O2.
What happens I really dont understand is that green cloud forms and after stirring all water turns to transparent brown color. Still water have a little tint green color .

What happened ? Can you answer please.

2007-11-23 12:58:21 · 1 answers · asked by Anonymous in Chemistry

2007-11-23 12:56:07 · 7 answers · asked by Anonymous in Biology

Which of the following are made up of particles identical to electrons?
a. alpha rays c. gamma rays
b. beta rays d. more than one response is correct

2007-11-23 12:50:16 · 2 answers · asked by Anonymous in Physics

2007-11-23 12:46:12 · 3 answers · asked by Anonymous in Physics

I watched this really interesting programme the other day about things we would be able to do in the future but there seems to be a debate whether we should gnetically enhance people for example or let evolution occur naturally. Its a bit random but was just wondering peoples views on the subject

2007-11-23 12:40:47 · 8 answers · asked by Anonymous in Biology

I know there's so many pros but I can't think of any cons except the cost. Anybody know any others?

2007-11-23 12:37:39 · 11 answers · asked by husna 1 in Astronomy & Space

Which of the following is a property of acid solutions?
a. sour taste c. change red litmus to blue
b. slippery feel d. more than one response is correct

2007-11-23 12:33:01 · 3 answers · asked by Anonymous in Chemistry

A water solution is found to have a molar OH- concentration of 3.2  10-5. The solution would be classified as


a. acidic b. basic c. neutral d. can't be classified

2007-11-23 12:32:12 · 1 answers · asked by Anonymous in Chemistry

Im looking for a copy of 'the universe' Search for e.t.

2007-11-23 12:27:42 · 2 answers · asked by missbehavin1x 1 in Astronomy & Space

According to the Arrhenius theory, what is produced when an acid dissolves in water?
a. H+ b. OH- c. H3O+ d. NH

2007-11-23 12:27:25 · 1 answers · asked by Anonymous in Chemistry

1. If homosexuality were predestined, 100% of the identical twins of homosexuals would be homosexual. In fact, only 38% of the identical twins of homosexual are homosexual, and 62% are heterosexual.
http://www.narth.com/docs/whitehead2.html

2. If homosexuality were predestined, homosexuals would be incapable of establishing normal sexual relations. However, 90% of homosexual men have dated women and two-thirds have had sexual intercourse with women.
http://www.orthodoxytoday.org/articles2/PragerHomosexuality.shtml

3. Many people change their sexual orientations. Some heterosexual men choose to become homosexuals, and some homosexual men eventually marry and lose any interest in performing sex on other men.
http://www.cwfa.org/articles/4325/CFI/cfreport/index.htm
http://www.narth.com/docs/evidencefound.html

2007-11-23 12:27:17 · 15 answers · asked by Bruce 7 in Parapsychology

2007-11-23 12:25:05 · 10 answers · asked by Anonymous in Mathematics

If you were in a satellite orbiting the Earth, how might you cope with walking, drinking, or putting a pair of scissors on a table? Explain.

This is a question from ch. 6 of a physics textbook on law of universal gravitation, Kepler's laws of planetary motion, gravitational field. Please help! All answers are greatly appreciated, thank you!

2007-11-23 12:24:53 · 3 answers · asked by Kiwikahuna 2 in Physics

there are a lot of fall foliage maps that show when leaves change color. i was wondering if there are similar maps, but showing when leaves appear again during the spring

2007-11-23 12:23:42 · 2 answers · asked by Arthur M 1 in Botany

does anyone have an ideas as to where i can find sites the would direct me to soultions of problems, etc from the mcgraw hill 11 university textbook.

thanks!

2007-11-23 12:22:53 · 2 answers · asked by E=MC^2 1 in Mathematics

2007-11-23 12:22:52 · 6 answers · asked by Anonymous in Mathematics

how Darwin’s theory would explain how giraffes evolved longer
necks.

2007-11-23 12:21:49 · 3 answers · asked by x j 1 in Biology

Astronauts who spend long periods in outer space could be adversely affected by weightlessness. One way to stimulate gravity is to shape the spaceship like a bicycle wheel that rotates about an axis just like a wheel, with the astronauts walking on the inside of the "tire."
Consider a) how objects fall
b) the force we feel on our feet
c) any other aspects of gravity you can think of.

This is a question from ch. 5 of a physics textbook covering normal force, kinetic/static friction. Any and all help will be greatly appreciated! Thank you!

2007-11-23 12:20:42 · 2 answers · asked by Kiwikahuna 2 in Physics

2007-11-23 12:19:17 · 17 answers · asked by the woj 1 in Weather

For a project, we need to make a "profile" on planet Saturn. I was wondering if there are any funny quotes to put in the "about me" section that would relate to Saturn. Also, I need an adjective that would describe Saturn's "mood" (Like on MySpace.) I can't think of any creative ones, but please help!!

Thanks in advance!
(Oh and some fun facts could help too!)

2007-11-23 12:13:53 · 3 answers · asked by j.adore♥pink 3 in Astronomy & Space

I want to build something like a rocket powered skateboard or a flying glider like on spiderman 3. I'm not some young kid who's fantasizing I just want to build things and sell them I want that to be my occupation

2007-11-23 12:13:17 · 6 answers · asked by JaeMoney 1 in Engineering

Does any one know what the job title would be for someone who discovers and tests new sources of power such as solar and hydrogen? Also, could you suggest a website for this job? Thanks

2007-11-23 12:06:01 · 1 answers · asked by Anonymous in Chemistry

hello everybody..hope everything z goin ok wid ya ... here is z a Question that i would like to have short and useful answers to. I rly hope u guyz can help me bcoz it is lyk 2:45 am ryt here and i desperatley wanna go and get sm sleep!:S
My Q says:
Si, C and Ge( Germanium) form compounds with hydrogen called hydrides. The saturated hydrides of carbon are the alkanes. Predict the formula of the hydride of germanium which contains two germanium atoms.

I am gettin GeH4 as an answer but still i believe that t z wrong as the mark scheme says dat the correct asnwer is Ge2H6:S
PLzzzzz help:S
Thnx

2007-11-23 12:03:34 · 5 answers · asked by Anonymous in Chemistry

just a brief answer :D

and with stars what is the difference between apparent and absoloute magnitude?

2007-11-23 12:00:35 · 12 answers · asked by Jane 1 in Astronomy & Space

a)additional oxygen will diffuse into the blood as carbon dioxide diffuses outt of the blood in the lungs

b)changing os stored chemical energy in food molecules to a form usable by organism

c)conversion of light energy into the chemical bond energy of organic molecules

d)removal of oxygen from the cells of an organism

2007-11-23 11:56:26 · 7 answers · asked by gh 1 in Biology

I have finished DC Electronics class and now i am starting my AC Electronics class in like two week what are some examples of measuring resistors, current and voltage look like in AC Electronics?

2007-11-23 11:53:54 · 2 answers · asked by Anonymous in Engineering

1. How is oil extracted from the oil sands?
2.What are some of the conerns of communities downstream of the Athabasca river?
3.What is the relationship between the Oil Sands project and CO2 emissions?
4. What are the social affects of the Oil Sands project?

2007-11-23 11:49:28 · 3 answers · asked by Cutie 4 in Engineering

4x + y = 11
x + y = 2

2007-11-23 11:43:53 · 9 answers · asked by Anonymous in Mathematics