Science & Mathematics - 22 November 2006

Please use just one word, Complete sentence is not required

2006-11-22 17:36:25 · 4 answers · asked by Gordito 1 in Physics

We had an experiment where we soaked blocks of wood in water and kerosene in separate beakers. After 20 minutes, the dimensions of the wood (length, width and height) remained the same, but it gained weight (as for each set-up). Can you please help me explain this phenomenon using the concept of imbibition; including the whole thing about cohesion and adhesion of water molecules? Please and thanks a lot!

2006-11-22 17:34:25 · 2 answers · asked by Eloise 2 in Botany

2006-11-22 17:33:06 · 7 answers · asked by chapped lips 5 in Chemistry

2006-11-22 17:32:21 · 1 answers · asked by rlvitte 1 in Biology

what are "naked" RNA strands or RNAi drugs
and stripped-down viruses

They are related to RNAi treatment

2006-11-22 17:31:52 · 1 answers · asked by Ria 1 in Medicine

So what do you personally think of aliens? Rather then laugh and post old jokes, just share what you think. Would they come from other planets? Or maybe some where else? Have you had an abduction experience? If so please share. Obviously something is going on. Many people having the same abduction experiences, and so many u.f.o sightings. Do you think the two are related? ~why?~

2006-11-22 17:27:20 · 11 answers · asked by mother_nature_mommy 2 in Paranormal Phenomena

cemical or electronical

2006-11-22 17:25:51 · 3 answers · asked by Anonymous in Chemistry

i mean why the colour of sky is blue.

2006-11-22 17:25:19 · 8 answers · asked by gily g 1 in Earth Sciences & Geology

ive tried to follow one and i dont think i ever got to the end so im not sure have you heard of anyone finding it is it real gold?

2006-11-22 17:24:21 · 8 answers · asked by chebyyy 1 in Physics

CAN SOME ONE HELP ME ELECTRON CONFIGURATION

why does chromium (element 24) has 3d^5 and 4s^1 instead of 3d^4 4s^2

2006-11-22 17:17:20 · 8 answers · asked by John B 1 in Chemistry

for any of these arrangemenets,consider the books on each shelf to be place one next to th other,with first book ar the left of the shelf)

2006-11-22 17:13:51 · 4 answers · asked by M R 1 in Mathematics

2006-11-22 17:11:08 · 3 answers · asked by che_karlos 2 in Mathematics

2006-11-22 17:09:56 · 8 answers · asked by prince 1 in Chemistry

5x+3y+z+5w=-2
3x+2y+2z+4w=2
2x+4y+3z-3w=-11
4x-3y-2z+2w=-3

2006-11-22 17:07:17 · 2 answers · asked by che_karlos 2 in Mathematics

2006-11-22 17:05:43 · 3 answers · asked by archit p 1 in Physics

Can we really see an object?
Or can we only see the light that's reflected from it?

2006-11-22 17:02:37 · 5 answers · asked by Neil S 4 in Other - Science

2006-11-22 17:02:09 · 11 answers · asked by Al3x_Dogg 2 in Astronomy & Space

2006-11-22 17:01:09 · 6 answers · asked by Clara 1 in Other - Science

A 2.1*10^-4 kg spider is suspended from a thin strand of spider web. the greatest tension the strand can withstand without breaking is 2.0*10^-3 N. What is the maximum acceleration with which the spider can safely climb up the strand?

ps- the "^" means power of :)

thx for your help guyz

2006-11-22 16:54:24 · 3 answers · asked by navratna s 1 in Physics

2006-11-22 16:53:28 · 6 answers · asked by MS. PATHUPATS 1 in Chemistry

2006-11-22 16:49:45 · 1 answers · asked by Anonymous in Zoology

2006-11-22 16:49:45 · 0 answers · asked by gogogo 3 in Chemistry

OK - I've never been much of a chemist - only continued with physics and bio at school, and now am heading geology-way at uni, and with the excitement of geochemistry, I'm starting to become a little more interested in these things called elements!!

So, I'm figuring Helium makes balloons float cause it's got such a low atomic mass, right? So is lighter than air? But Hydrogen is the lightest element isn't it, and pretty abundant - so what are the advantages of using Helium rather than Hydrogen?

2006-11-22 16:48:21 · 10 answers · asked by Anonymous in Chemistry

2006-11-22 16:46:58 · 8 answers · asked by che_karlos 2 in Mathematics

ok i have this math problem that my friend and myself are disagreeing on, we both think the others wrong..can someone help us break this up and see whos really right?

ok

Determine the maximum and minimum values of the following set of numbers.

3, -36/7, -1, -2/3, 5/4, -5, 26/9 is the problem.

Mine is
3, -5 and 1/4, -1, -2/3, 1 and 1/4, -5, 2 and 8/9???

Shes got

3, 26/9, 5/4, -2/3, -1, -5, -36/7

which is right?

2006-11-22 16:40:09 · 8 answers · asked by Anonymous in Mathematics

I once had a chance to see a clear full moon through my amateur telescope, and it appears to me that the "blemishes" in the moon's face are in fact the shadow casts by the mountains on the moon. Is this true?

2006-11-22 16:38:50 · 8 answers · asked by Alvin 1 in Astronomy & Space

Please explain or provide links/references.

2006-11-22 16:38:21 · 7 answers · asked by the great human 1 in Physics

An aluminum rod is 20.0 cm long at 20°C and has a mass of 350 g. If 14500 J of energy is added to the rod by heat, what is the change in length of the rod?

2006-11-22 16:36:01 · 2 answers · asked by lol 1 in Physics

A particular engine has a power output of 6.00 kW and an efficiency of 25.0%. Assume the engine expels 8500 J of energy in each cycle.
(a) Find the energy absorbed in each cycle.
(b) Find the time required to complete each cycle.

2006-11-22 16:35:04 · 2 answers · asked by lol 1 in Physics

2006-11-22 16:35:03 · 15 answers · asked by Dinasor76 2 in Astronomy & Space