[Selected]: All categories ➔ Science & Mathematics
Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology
I was doing a chemistry experiment with silver nitrate and it got all over my hands and stained them. How can I get it off?
2006-09-18 08:04:11 · 4 answers · asked by ND 1 in Chemistry
Da and Da (average) and Dt for the data?
2006-09-18 08:03:25 · 1 answers · asked by dreamz 4 in Physics
2006-09-18 08:00:48 · 3 answers · asked by Anonymous in Physics
we all like rainbows, and the mechanism of production is well understood, but is it possible that the sun reflecting off a river/lake and into the clouds in the sky would be capable of producing a rainbow like effect ?
2006-09-18 07:58:53 · 8 answers · asked by Anonymous in Weather
2006-09-18 07:56:56 · 2 answers · asked by jimbo 1 in Astronomy & Space
Could someone please explain this in depth, I would appreciate this because I need some ideas for my homework.
2006-09-18 07:56:36 · 8 answers · asked by Anonymous in Other - Science
Given the variable dencity of the debris in the orbits of the comets and asteroids responcably for the major annual meteior showers,what are the odds that the ISS will suffer damage from a serious impact?
2006-09-18 07:54:25 · 4 answers · asked by S.A.M. Gunner 7212 6 in Astronomy & Space
A spring has been attached to a pole. At the other end of it is a mass. If the pole were to start rotating, how should I go about trying to find a mathematical relation between the extension of the spring and the angular acceleration of the system?
I know that angular acceleration increases centrepetal acceleration, causing the mass to exert a force on the spring, resulting in an extension in the spring, proportional to the spring constant. Um...I don't exactly know how to make the mathematical connections. I suppose it might involve a differential equation. Can you please help me?
2006-09-18 07:50:19 · 2 answers · asked by Anonymous in Physics
Can we define our voice as a form of energy? This can be transmitted electronically through phone wires and satellite and recontructed so we can hear people as if they were right next to us. Why can we not do this with the bodies of living things, ie somehow electronically send people over distances?
--I never had a physics class so please bear with me on this.
2006-09-18 07:49:33 · 5 answers · asked by Anonymous in Physics
2006-09-18 07:44:25 · 9 answers · asked by peggy 1 in Chemistry
If a tank of water has a 300 cm^3 area (it is 20.0 cm long and 15.0 cm wide), if it has a volume of 1.20 x 10^4 cm^3, what is its height in meters? Also, what is the capacity in liters of the tank? Also, how many kilograms of water at 4 degrees C will the tank hold?
2006-09-18 07:44:00 · 2 answers · asked by dreamz 4 in Physics
2006-09-18 07:43:52 · 4 answers · asked by eina 2 in Physics
2006-09-18 07:42:54 · 2 answers · asked by P 1 in Biology
video tapes , miracles been witnessed by science and aproved , experiments .
2006-09-18 07:39:49 · 15 answers · asked by Rabih 1 in Other - Science
2006-09-18 07:36:51 · 3 answers · asked by mehrdad_ansary 1 in Astronomy & Space
2006-09-18 07:36:46 · 4 answers · asked by tezzwilcox 2 in Physics
2006-09-18 07:36:28 · 7 answers · asked by chitchat 1 in Physics
Whales - Elephants - Lions - Gorillas - Pandas - Cheetahs - Leopards - Seals - Dolphins - Black Rhinoceros - Bald Eagles - Turtles - Polar Bears
Endangered?
Hell No.
They'd make a damn fine burger:
2006-09-18 07:35:58 · 7 answers · asked by Anonymous in Zoology
A set of twins. One boards a space ship traveling near the speed of light. He returns to earth and finds his twin brother has aged more than he. Time dialation, got it.
It takes light from a star 4 billion light years away 4 billion years to reach earth, thus we are looking back into time the way the star was 4 billion years ago. But are we really? Does light from stars go through time dialation? Does the star 4 billion light years away really appear to us the way it looked 4 billion years ago? Or is it more like 2 billion years ago? Is the star aging slower because it, or the light from it, is traveling so fast? I assume, given the fact that stars/galaxies experience redshift, that they are moving at a speed comparable to the speed of light and are thus subject to extreme cases of time dialation like those expressed in the twin paradox.
Could this too then mean that every other star could essentially appear to live longer than our Sun because they're traveling so fast?
2006-09-18 07:35:21 · 6 answers · asked by Victor O 2 in Astronomy & Space
why is it called a belly button when it is a hole and looks nothing like a button?
2006-09-18 07:33:00 · 21 answers · asked by Cheeks 3 in Biology
2006-09-18 07:31:39 · 4 answers · asked by goring 6 in Physics
2006-09-18 07:23:54 · 11 answers · asked by Anonymous in Physics
2006-09-18 07:22:58 · 53 answers · asked by devil child 1 in Biology
2006-09-18 07:19:32 · 13 answers · asked by JC 2 in Other - Science
2006-09-18 07:18:48 · 3 answers · asked by - 3 in Astronomy & Space
Would the planet develop a speed wobble like an unbalanced wheel? Could this alter our orbit?
2006-09-18 07:16:33 · 18 answers · asked by Ripped007 1 in Physics
2006-09-18 07:07:20 · 15 answers · asked by ra7673 1 in Mathematics
what is the chemical reaction in brewing beer
2006-09-18 07:06:28 · 7 answers · asked by Anonymous in Chemistry
2006-09-18 07:04:48 · 3 answers · asked by senshi_starhealer 1 in Mathematics
2006-09-18 07:04:22 · 13 answers · asked by Anonymous in Astronomy & Space
Questions asked on 18 September 2006:
Showing 571 to 600 of 808 questions
Questions asked on other days: