Science & Mathematics - 7 September 2007

This makes me feel like our brains as humans are so insignificant.
Anyone remember back when everyone thought the earth was flat? (not personally, of course)
I can't wait until (hopefully) one day, in the future, someone discovers what's beyond us. We're trapped in such a little net of what we can comprehend.
What if the universe is like a country... the galaxy is like a state, and us, earth, is like a city.
there may be more than just one country in.... whatever it is that's so much larger than us.
It blows my mind to think of the possibilities.

I answered a question with this, and now I'm just wondering if anyone feels the same way.

2007-09-07 04:31:49 · 7 answers · asked by Anonymous in Astronomy & Space

The sequence of odd numbers starting with 3 is 3,5,7,9...
Consecutive numbers from this sequence can be added using the following pattern-
3+5+7+9=4x6
3+5+7+9+11=5x7
3+5+7+9+11+13=6x8

The first n numbers in this sequence are added. Find a formula for the total.

2007-09-07 04:28:15 · 13 answers · asked by Unknown! 2 in Mathematics

there is water everywhere on the Earth. Much of it is in the oceans and seas, but there is also water on land and rivers, lakes, swamps and wetland.
How the water recycled?
1.
2.
3.
4.

2007-09-07 04:26:32 · 7 answers · asked by just4 2 in Earth Sciences & Geology

2007-09-07 04:26:28 · 2 answers · asked by g2hn 3 in Other - Science

in the last line of my 7x8 matrix,[column 7,row 7] i have a zero and i dont know how to get it to a 1...here is my last matrix

[ [1 0 0 0 0 0 1 600]
[0 1 0 0 0 0 -1 -100]
[0 0 1 0 0 0 -1 0 ]
[0 0 0 1 0 0 -2 -600]
[0 0 0 0 1 0 1 600]
[0 0 0 0 0 1 1 600]
[0 0 0 0 0 0 0 -100] ]

i am using a TI-84 plus calculator for this and i used Xrow and row+ and Xrow+

any help would be greatly appreciated!

thank you

2007-09-07 04:24:39 · 2 answers · asked by Anonymous in Mathematics

2007-09-07 04:23:50 · 6 answers · asked by Anonymous in Weather

when rain falls from the sky, what becomes of its momentum as it hits the ground?
is your answer also valid for newton's famous apple? Explain
=============================
the first one i know...but the second one..what the hell is it talking about??

this is a question from my textbook.

2007-09-07 04:22:26 · 5 answers · asked by Anonymous in Physics

I am doing a report on doctors that work with the human digestion system. If you have any other information about enterlogy,proctology, and gastrology. Please tell me.

2007-09-07 04:21:07 · 1 answers · asked by Rosalie Cullen 3 in Chemistry

i rly need to know this ASAP becuase this is for my college science project. :) anyone who wants 10 points for a good answer, ill give it to you :)

2007-09-07 04:20:44 · 5 answers · asked by dhwsdgjgjsg 2 in Earth Sciences & Geology

is medical informed consent legaly walid if was obtained by the patient even though he had not met or spoken to the surgeon that performed surgery on him?It was obtained by so called hair transplant consultant who is not physician has no medical background.The patient met the doctor first time 10 minutes before surgery when the doctor had so called consultation,one day after consent was signed.The patient was mislead and conned into hair transplant surgery that was scheduled before patient was examined and had a chance to wage the pros and cons of surgery.

2007-09-07 04:17:40 · 5 answers · asked by Anonymous in Medicine

i would really want to know are there any proofs to prove that we can travel to the past or the future?

2007-09-07 04:17:40 · 5 answers · asked by S2marbles 2 in Physics

If I wound down the window as I travelled on the very edge of the universe and stuck my arm out, what would happen?

(Under the assumption it was safe to do so!). How could I put my hand into nothing!

2007-09-07 04:16:06 · 23 answers · asked by vasquez109 2 in Astronomy & Space

2007-09-07 04:15:30 · 6 answers · asked by Anonymous in Physics

2007-09-07 04:13:37 · 11 answers · asked by kingscorpius18 1 in Mathematics

2007-09-07 04:11:54 · 5 answers · asked by Anonymous in Mathematics

Sometimes when you square a number, the answer is plus or minus the answer, but sometimes it's not, sometimes it's only a positive or negative number, I don't understand that.

2007-09-07 04:11:06 · 12 answers · asked by lost.in.love 4 in Mathematics

2007-09-07 04:08:34 · 9 answers · asked by Jose s 2 in Astronomy & Space

Let a 2 x 2 matrix A = [ cos x sin x , -sin x cos x]. Prove or disprove the conjecture that (A)^k = [cos kx sin kx ,
-sin kx cos kx].

2007-09-07 04:07:15 · 4 answers · asked by news4van 1 in Mathematics

2007-09-07 04:05:49 · 5 answers · asked by M. E 2 in Mathematics

Note that a sequence of links from a higher level theory to particle physics (e.g. evolution to biochemistry, etc) in itself is a weak evidence for a reduction because of the modeling and assumptions used. Some say that reductions are too complex to prove, these links are the best we can do, so the evidence is strong. It's a strange logic. These links are strong evidence for some relationship between the theory and a more elementary one, for some kind of reduction, but not necessarily for the (standard) reduction. So, we have evidence for the successful application of elementary particle physics in chemistry, etc, but unless one carefully consider the models and the assumptions used, we don't know if these links correspond to the standard reduction.

Do you know if someone made such a study? For example, someone might have attempted to find some recurring pattern in the assumptions and models used to see if there is an indication of a special kind of reduction.

2007-09-07 04:05:25 · 3 answers · asked by My account has been compromised 2 in Physics

maybe i have it all wrong - just looking for thoughts from people who may know more about this subject than I do.

if the observable universe is made up mostly of dark matter, and if light is both a particle and a wave, then what is happening to all the light that is being emitted in every direction by stars?

are there any theories about all the light that is emitted but not absorbed or reflected by regular matter in the universe (not dark matter)?

are there any theories about the edges of the universe being composed of light particles or photons and such?

2007-09-07 04:04:59 · 5 answers · asked by Antena 3 in Astronomy & Space

28 is divided by 1,2,4,7,and 14 only .
The total of 1,+2+4+7+14 =28


my Q is find the next number having same charector

2007-09-07 04:01:20 · 5 answers · asked by Anonymous in Mathematics

The (3x -2) is within modulous.. This is what is annoying me.. Please explain how to integrate with the modulous.. thanks

2007-09-07 04:00:11 · 5 answers · asked by Mehn 3 in Mathematics

2007-09-07 03:58:30 · 6 answers · asked by Bryan O 1 in Weather

This question is about equilibrium on physics. Please help me. Thank you.

2007-09-07 03:52:51 · 10 answers · asked by bridjE 1 in Physics

2007-09-07 03:50:38 · 5 answers · asked by tmk4u2 1 in Weather

2007-09-07 03:48:16 · 10 answers · asked by param d 1 in Astronomy & Space

i got an email on the 25th saying that on the 27th of august mars will come within 36million miles of earth and if you looked at the sky at night it will seem as though there were two moons, i forgot to check this but 3 people have told me they saw it, and apparently it will happen again in 3026 or summit

2007-09-07 03:42:45 · 14 answers · asked by Rodman 2 in Astronomy & Space

2007-09-07 03:41:51 · 2 answers · asked by plzhelp 2 in Mathematics

How long did the Hundred Years War last?

2007-09-07 03:40:38 · 4 answers · asked by B 1 in Physics