Science & Mathematics - 10 September 2006

I am curious because I am writing a book, and since I am aware that gold is a fairly soft metal I would like to know if it would be possible to make a basket style sword handle out of a mix of gold and some other metal so that if it were to take a hit it would not colapse and and crush the sword user's hand.

2006-09-10 09:54:56 · 4 answers · asked by pharaoh_yugi2000 1 in Chemistry

Every video shows people mixing DIET coke and mentos but never regular coke....why is this?

2006-09-10 09:53:09 · 18 answers · asked by danets10 1 in Chemistry

I found the derivative of the function y=2x^2- 13x +5 and the answer is 4x-13 I then have to use that answer to find an equation of the line tangent to the curve at x=3

if you're good at math please help me with this problem! THANK YOU!

2006-09-10 09:52:56 · 3 answers · asked by sweetxbobah 1 in Mathematics

Based on your observations, rank the following by relative size, beginning with the smallest: glucose molecules, water molecules, IKI molecules, membrane pores, and starch molecules.

2006-09-10 09:51:24 · 2 answers · asked by yellow 4 in Biology

I want to be a doctor, but am not that fond of science. it sounds stupid i know.

i have heard that the science is only used to get into medical school, and from there on is somewhat different.

i have good marks in science, but dont enjoy it. i could put up with a fraction of it.
Also- doctors- does training to be a doctor completely take over your life. It apprently takes 9 years to fully train- so what if i wanted to start a family?
is there enough time?

2006-09-10 09:50:59 · 16 answers · asked by Anonymous in Biology

2006-09-10 09:49:53 · 2 answers · asked by Omikron 1 in Earth Sciences & Geology

I have found a few programs on the internet I want to add. They are programed for a ti-83 plus. I am have been the files into the ti-silveredition/ flash - archiver/applications. It then lists the program. When I go into my ti-84 and click "prgm" it is listed, but when I click on it, it doesnt really do anthing. If I hit enter, it gives me ERR:ARCHIVED.

HELP PLEASE!!!!!!!!

2006-09-10 09:47:32 · 2 answers · asked by Cliffo 3 in Mathematics

I saw someone light a beaker full of red bull energy drink on fire. She said it didn't matter if it was sugar free or regular, both would burn. Why will the energy drink burn like that?

2006-09-10 09:47:26 · 3 answers · asked by aghighclass 1 in Chemistry

2006-09-10 09:46:57 · 3 answers · asked by ABC X 2 in Other - Science

plz help me and if ur realli good at Algebra leave me ur AIM sn

2006-09-10 09:43:52 · 11 answers · asked by Anonymous in Mathematics

a solid carbon dioxide sample transforms to the gaseous state at room temperature. As a result the sample would undergo

no change in physical properties.
a change in density
a change in chemical properties.
a change in mass.

2006-09-10 09:41:01 · 4 answers · asked by im M 1 in Chemistry

2006-09-10 09:38:28 · 17 answers · asked by Anonymous in Other - Science

For the people who have read the example of a creature in Flatland.. It says that a 2d being on Flatland will "see" a 3d sphere as a shadow if place above it.. the shadow will be that of a circle.. again a 2d right? It then says that for a 3d being the 4d also is seen as a shadow.. Can someone give me an example in our world.. An example of a "shadow" which is a 4d in our everyday experience? Or am I completely missing the point here....

2006-09-10 09:38:12 · 5 answers · asked by Anonymous in Physics

It's only evolved once on our planet, and it looks like we'll kill ourselves within a few million years. Dinosaurs weren't intelligent, but survived for about 200 million years. Is it actually a disadvantage to long term survival?

2006-09-10 09:36:10 · 33 answers · asked by Oracle Of Delphi 4 in Biology

Assume these are microscopic quantum black holes - either artificial or natural - and there is enough mass inside to stabilize them. Assume that these two or more black holes somehow came into a quantum entangled state - either during their formation - or by some other means.

Assume they are LIGHT YEARS apart.

What properties would they have?

How would a particle falling into one black hole affect the other?

2006-09-10 09:35:09 · 4 answers · asked by Techguy2396 2 in Physics

2006-09-10 09:33:42 · 2 answers · asked by Anonymous in Astronomy & Space

for example, Reals is R, Integers Z, Rationals Q, etc...

2006-09-10 09:32:03 · 3 answers · asked by Giovanni McAdoo 4 in Mathematics

2006-09-10 09:31:40 · 9 answers · asked by curious_inquisitor 1 in Physics

For the people who have read the example of a creature in Flatland.. It says that a 2d being on Flatland will "see" a 3d sphere as a shadow if place above it.. the shadow will be that of a circle.. again a 2d right? It then says that for a 3d being the 4d also is seen as a shadow.. Can someone give me an example in our world.. An example of a "shadow" which is a 4d in our everyday experience? Or am I completely missing the point here....

2006-09-10 09:31:21 · 4 answers · asked by Anonymous in Other - Science

2006-09-10 09:29:17 · 6 answers · asked by Anonymous in Astronomy & Space

apparently its very still but the idea of standing in that uber calm and have total raging chaos around you intrigues me as does extreme weather especially wind and storms, a charged atmosphere like that is just amazing. Dont get me wrong i know many people suffer through extreme weather and i feel for them but its the actual phenomena and power that intrigues me not the destruction to life and property. Any comments or experiences would be great, also i am thinking of a tornado holiday so any advise or experiences there would be welcome too.

2006-09-10 09:28:56 · 14 answers · asked by Anonymous in Weather

For example- when you see spaceships blow up in movies, there is a big explosion- but I thought that you needed oxygen as a fuel for fire?

Also, if 0 gravity, water goes into dreoplets- what would fire look like in 0 gravity?

Just curious...

2006-09-10 09:25:05 · 16 answers · asked by Personal Angel 3 in Chemistry

ex: 650 + 2% each year for 25 years. Gotta be an weasy way

2006-09-10 09:24:12 · 2 answers · asked by eddie9551 5 in Mathematics

2006-09-10 09:24:11 · 6 answers · asked by Ragini K 1 in Physics

How would you calculate separation energy of the necleon of a given element like helium or oxygen?

2006-09-10 09:24:00 · 2 answers · asked by ghakh 2 in Chemistry

2006-09-10 09:23:29 · 7 answers · asked by RaeMP 1 in Chemistry

okay, i have two quick questions for you...

"what are 3 states of matter"?

and

"a friend tells you that a newspaper is completly gone, because it was burned up in a fire. Use the law of conservation of mass to write an explination telling your friend, what really happend to the newspaper."

if someone could help me with those, it would be greatly appreiciated!!
thanks!! =)

2006-09-10 09:23:01 · 7 answers · asked by butterflybabe1822000 2 in Chemistry

i have 2 options for an answer which its
1.03240 * 10 square root negative 2 which it equals to .010324
but then i also have
1.0324 * 10 square root -2 and it equals the same thing.
but i mean whats the right answer if both equal the same and the only thing that changes is that one has a 0 at the end and the other one doesnt?

2006-09-10 09:22:09 · 6 answers · asked by im M 1 in Chemistry

Just a few minutes ago, my father brought me into his room which had all electronics off. He said to me, "Do you see something in the TV?" Now, a little background check before this:
My father woke up early in the morning (like he does every weekend for the past 16 years), had a cup of coffee, got the newspaper (since it is Sunday) and worked on his truck. He has worked outside, every weekend for the past, 16 years! He's had a few beers (which don't affect him) and a few cigarettes (which don't affect him either). It was a normal Sunday until this question popped up.
After fighting with me and my mother, confirming we couldn't see anything in the television (he said he could see Jason X the movie, and an oldie movie in the TV) I brought him to my mothers TV to see if he could see something in there too, and he did (and we had the lights turned off as well).
I believe this might be something in his subconscious mind transferring to his eyes. What is he seeing? Has it been documented?

2006-09-10 09:20:51 · 5 answers · asked by Sagara S 1 in Chemistry

isn't it some chemical reaction? ice= water, water dissolves NaCl, but why is it that the grass dies?

2006-09-10 09:19:23 · 7 answers · asked by yellow 4 in Biology