Science & Mathematics - 15 August 2006

In the US, graduate students in the basic sciences generally have tuition covered plus a stipend, either through a TA or an RA. Is a similar package available to US citizens in any other countries?

2006-08-15 04:56:13 · 1 answers · asked by mlevy79 2 in Other - Science

2006-08-15 04:55:36 · 8 answers · asked by Anonymous in Physics

I asked if the rest mass of a photon is still zero in non-vacuum, where it's velocity is less than c. I got the answer that it is indeed still zero, because the length of the 4-vector (E/c,px,py,pz) is zero. And because this is a flat space property it's easily generalised to other coupled fields to describe non-vacuum situations: the result still holds. Now my problem is that I don't know what a flat-space property is, i.o.w. why the four-vector is still zero.

2006-08-15 04:54:50 · 4 answers · asked by helene_thygesen 4 in Physics

2006-08-15 04:51:51 · 10 answers · asked by raven_pjs 2 in Biology

why earth's axle is at an angle...?15 deg or something...

2006-08-15 04:50:51 · 7 answers · asked by insane 2 in Astronomy & Space

2006-08-15 04:50:29 · 25 answers · asked by v 1 in Medicine

On the weather reports they refer to dew point as something having to do with humidity. If it is 85 degrees outside, what is a comfortable (i.e. not too humid) dew point? Similarly what is a comfortable humidity percentage? Thanks.

2006-08-15 04:48:42 · 4 answers · asked by ebillar 1 in Weather

2006-08-15 04:46:33 · 12 answers · asked by ♥dylan♥sprouse♥ 2 in Mathematics

2006-08-15 04:44:12 · 8 answers · asked by v 1 in Physics

2006-08-15 04:44:06 · 5 answers · asked by Anonymous in Physics

2006-08-15 04:44:06 · 11 answers · asked by Anonymous in Mathematics

2006-08-15 04:44:02 · 5 answers · asked by Hector Francisco B 1 in Astronomy & Space

Hi,
Here is the question I am trying to solve:
According to Newton's Second law of motion, the force F acting upon an object varies directly with its acceleration a. A force of 63N acting upon a given object results in an acceleration of 9 m/s^2. If the magnitude of the force acting upon the same object is changed to 28 N, what will the object's acceleration become?

I have been trying out how to figure the above problem for a bit, but the formulas confuse me. X_X

I really appreciate your help!

2006-08-15 04:41:35 · 12 answers · asked by Anonymous in Mathematics

fustrated, HELP?

2006-08-15 04:40:02 · 4 answers · asked by walkietalkie899 1 in Mathematics

This stuff really works just like the commercials. My gf would not let me out of the house this morning after I put on my spray. They don't advertise it contains pheromones but it must contain some pheromone-like ingredient.

2006-08-15 04:39:34 · 6 answers · asked by axeguy 1 in Chemistry

desperate fof help si there a step by step instructional?

2006-08-15 04:38:30 · 9 answers · asked by walkietalkie899 1 in Mathematics

i need help understanding this ..i nkow x over r and r is aways psitive or and opp ver hypoth...?????????some one help

2006-08-15 04:36:19 · 8 answers · asked by walkietalkie899 1 in Mathematics

Pls. help me solve this math problem. Please include the GCF (greatest common factor) in your answer. Thankyou!!!

2006-08-15 04:32:08 · 8 answers · asked by Andrea 1 in Mathematics

AB x C= AAA

2006-08-15 04:28:41 · 6 answers · asked by chaneld2005 1 in Mathematics

2006-08-15 04:26:58 · 26 answers · asked by chinesewirenut 1 in Earth Sciences & Geology

2006-08-15 04:26:12 · 15 answers · asked by Heather K 2 in Geography

2006-08-15 04:23:59 · 2 answers · asked by Hector Francisco B 1 in Biology

2006-08-15 04:21:34 · 5 answers · asked by Anonymous in Engineering

It is repressnted by C because it is a CONSTANT, so then how can it VARY? What causes it to VARY its speed?
Alright. I am NOT a scientist, so sorry if this question is worded incorrectly.

2006-08-15 04:20:47 · 12 answers · asked by thepolishdude 2 in Physics

I mean it is a very long way away !

2006-08-15 04:18:44 · 23 answers · asked by Anonymous in Other - Science

Is it true that towards the end of August, the naked eye will be able to see Mars right next to the moon?

2006-08-15 04:17:40 · 6 answers · asked by Fabe 6 in Other - Science

I think it had something to do with the number of seconds it took the vehicle to go from one telephone pole to the next.

2006-08-15 04:11:45 · 12 answers · asked by medicineman1965 1 in Engineering

I have worked out that if you weigh 50 kilos this is equal to 66 bottles of wine...how quickly could this be drank. I mean if you have 5 bottles a day after 4 days presumably your liver would give up. So how quickly could you drink the 66 bottles of wine without liver failure. PS I have no intention of doing this...any Dr's out there!?

2006-08-15 04:11:24 · 7 answers · asked by quiffed 1 in Medicine

the darker(black) the hair,the more the melanin(black pigment) is, (i suppose). so can you tell me how to improve the colour (blackness)of hair by taking particular kind of food or which mineral is exactly responsible for blackness of hair.

2006-08-15 04:10:52 · 3 answers · asked by Anonymous in Biology

show that (n^2)!/(n!)^n is a natutal no foar all nbelongs to N
the answer next week the smaller the better (i know 2 ways so far)
and PLEASE no stupid answers for points its irritating

2006-08-15 04:08:06 · 8 answers · asked by keerthan 2 in Mathematics