Science & Mathematics - 25 September 2006

2006-09-25 14:08:23 · 2 answers · asked by silvaofnc 2 in Mathematics

You probably won't believe me when I say this Q was inspired by a friend from the Religion & Spirituality category. So I won't tell you that.

2006-09-25 14:07:25 · 6 answers · asked by ? 7 in Zoology

2006-09-25 14:06:57 · 9 answers · asked by element69ca 1 in Mathematics

Are our eyes the same size that they were when we were born or have they grown since then?

2006-09-25 14:06:32 · 16 answers · asked by andrea_rose_hunny 1 in Biology

2006-09-25 14:06:00 · 7 answers · asked by VinRock 1 in Chemistry

I watched the tape of the space shuttle Atlantis take off. When the shuttle reached orbit the shuttle was separated from the external fuel tank. The tank began to fall to earth, yet the shuttle stayed in orbit. This is my question, why did the external fuel tank fall and the shuttle did not?

2006-09-25 14:04:40 · 3 answers · asked by mr.answerman 6 in Physics

it was neither early nor late stste it produces products like rice,beef cattle,wheat and turkeys

2006-09-25 14:03:14 · 4 answers · asked by Daniel A 1 in Other - Science

2006-09-25 14:03:13 · 6 answers · asked by Anonymous in Earth Sciences & Geology

2006-09-25 14:01:40 · 7 answers · asked by Dongteng K 1 in Zoology

2006-09-25 13:58:10 · 3 answers · asked by Andrew M 1 in Mathematics

2006-09-25 13:56:54 · 6 answers · asked by monikaelsa 1 in Geography

biotic factors

2006-09-25 13:55:39 · 2 answers · asked by Anonymous in Biology

anyone?

2006-09-25 13:54:07 · 4 answers · asked by Anonymous in Other - Science

Which of these elements are most likely to have properties similar to those of chlorine? Why?
a. Boron
b. Hydrogen
c. Nitrogen
d. Oxygen
e. Silicon

2006-09-25 13:53:51 · 6 answers · asked by joecool148192 1 in Chemistry

I think i have the answers, but i am not sure about the method. Can you check these and tell me why i am right?

1) A force accelerates a body of mass M. The same force applied to a second body produces three times the acceleration. What is the mass of the second body?
My friend tells me the answer is M/3 and i don't understand why.

2) A mass m is hanging on a string that passes over a pulley and is then attached to another mass 3m that is resting on a horizontal table. Neglect friction. Mass m is held motionless and is then released. When it has fallen a distance h, it will have a speed v. Find the formula for v.
On this one, i get the squareroot(gh/2), but as i am following my work, parts of it don't make sense to me. Can you show me if this is correct or not?

This is it for now, thanks so much!!!!!

2006-09-25 13:53:35 · 1 answers · asked by Anonymous in Physics

2006-09-25 13:52:45 · 10 answers · asked by blahhhaha 3 in Biology

2006-09-25 13:50:35 · 5 answers · asked by erdestapire 1 in Mathematics

The question is:

"To raise the temperature of a mass of water from 25.0 degrees C tp 50.0 degrees C requires 7.5 kcal. Calculate the mass of water in grams. (specifric heat of water= 1.0 cal/ (g) (degrees C)

The formula I got was

Q/ ΔT x C=M

However, the answer is incorrect. Can someone please explain and demonstrate how to solve this problem?

Thanks in advance.

2006-09-25 13:50:29 · 2 answers · asked by mbtafan 3 in Chemistry

2006-09-25 13:49:34 · 3 answers · asked by erdestapire 1 in Mathematics

2006-09-25 13:49:28 · 2 answers · asked by Anonymous in Biology

yes if someone would help me with this I would appreciate it!

2006-09-25 13:46:42 · 11 answers · asked by Anonymous in Other - Science

For instance I have heard that you can urinate and it will filter out soil bacteria and urine from the bottom water when evaporating it and you will be fine. Similarly with ocean water I've heard it can de-salinize that too and presumably filter out the bacteria.

But do solar stills work on ALL water contaminants? For instance during Hurricane Katrina would the solar still filter out all of the chemical and biological contaminants in that very dirty water too?

Basically what are the limits in terms of what solar stills can filter out, if there are any limits.

2006-09-25 13:45:18 · 2 answers · asked by midwestbruin 3 in Other - Science

X= -2


x squared – 2x + 2

can u tell me the answer but in words like
example x =2

x+7
2+7=9 two plus seven equals nine

2006-09-25 13:44:50 · 4 answers · asked by Anonymous in Mathematics

ugh man it is annoying....

what can i do to stop it?

sometimes i can only breath through one nostril even if i blow my nose, eventually it goes away but tit comes back a while later...what can i do with it? i probably have a cold but i want it to go away, so what can i take or do? aalso my sinus is a little clogged.

2006-09-25 13:42:52 · 11 answers · asked by soccerandlaxfan4life 2 in Medicine

Can anyone help me solve this question? Thanks a lot for your help!

How can an object in uniform circular motion be moving at a constant speed and at the same time be constantly accelerating? For this same object, can we apply the following equations of motion:

v(final) = v(initial) + at
d(final) = d(initial) + v(initial) t + 1/2 at2 ?

2006-09-25 13:42:13 · 4 answers · asked by Lisa S 1 in Physics

2006-09-25 13:41:41 · 8 answers · asked by erer e 1 in Earth Sciences & Geology

2006-09-25 13:39:15 · 3 answers · asked by l m 4 in Other - Science

2006-09-25 13:38:35 · 13 answers · asked by Brianna Fool:) 2 in Astronomy & Space

2006-09-25 13:38:07 · 10 answers · asked by smartdude20006 1 in Mathematics

2006-09-25 13:36:40 · 7 answers · asked by William S 1 in Physics