Science & Mathematics - 26 December 2006

2006-12-26 03:59:36 · 2 answers · asked by aviad 1 in Biology

Complete the balanced reaction if it will occur.
State "does not occur" if the reaction will not take place.

Na + HNO3 --->

Ni(II) + Cu2O -->

Zn + Mg(NO3)2 -->

2006-12-26 03:59:08 · 3 answers · asked by queenpravato 1 in Chemistry

another car of the same mass.

2006-12-26 03:55:50 · 8 answers · asked by Anonymous in Physics

I've heard that because photons always travel at the speed of light they do not age. That is strange enough to think about, but I've been thinking about something even stranger lately. If I understand Lorentz contraction, anything that travels at light speed has no length in its direction of travel. So from an observers perspective wouldn't a photon effectivley be two dimensional? And how could it ever display its particle properties if this is true?

2006-12-26 03:54:33 · 3 answers · asked by gliss 2 in Physics

Before the invention of the telescope, man actually believed that the stars could be numbered. The great Ptolemy gave the number as 1,056. Tycho Brahe cataloged 777 and Kepler counted 1,006. The astronomers of those days were certain that they could count the number of stars. Since the invention of the telescope by Galileo in 1608, we now know that the number of stars are limitless. Today, astronomers estimate that there are 100 billion stars in our galaxy with an additional 20-100 billion galaxies in the universe!

But long before the telescope was invented, the Bible had put forth the notion that the stars are countless in number. God spoke to Abraham that his descendants would be "as numerous as the stars of heaven and as the grains of sand on the seashore" (Genesis 22:17). Jeremiah 33:22 states: "The host of heaven cannot be numbered." Thousands of years later we see the confirmation of the Bible by modern astronomers.

2006-12-26 03:54:00 · 7 answers · asked by curious_inquisitor 1 in Astronomy & Space

2006-12-26 03:53:06 · 4 answers · asked by nbieringer 2 in Mathematics

I was told virgin material only.

2006-12-26 03:52:56 · 2 answers · asked by Anonymous in Engineering

is there a comet coming to earth in maybe 30 yrs? what will happen to us all? Or if not a comet is there maybe global warning? what will happen if there's global warning?

2006-12-26 03:51:26 · 12 answers · asked by Anonymous in Astronomy & Space

cos(45degrees+x)+cos(x+315degrees)=square root of 2 cos x

2006-12-26 03:46:36 · 8 answers · asked by Anonymous in Mathematics

i don't know if it means principles as an rules

2006-12-26 03:46:35 · 2 answers · asked by tania j 1 in Physics

2006-12-26 03:46:35 · 4 answers · asked by missy l 2 in Medicine

I know places like Phoenix, El Paso, and Las Vegas get a number of days where the temperature rises over 105, but the humidity is so low the heat index doesn't match the air temperature. Then again, heat is heat, dry or not, so what do you all think? What about sweatholes like Houston or New Orleans?

2006-12-26 03:42:16 · 3 answers · asked by Jumpin' Jack Flash 1 in Weather

I know Dallas gets hotter according to pure temerature, but Houston is more humid. Then again, Houston is closer to the ocean, so wouldn't there be a breeze? Eitherway, to those of you who have lived in both places, which one of the two cities is more unbearable with discomfort and heat in the summer?

2006-12-26 03:38:07 · 7 answers · asked by Jumpin' Jack Flash 1 in Weather

2006-12-26 03:37:27 · 5 answers · asked by Kate K 1 in Chemistry

2006-12-26 03:30:03 · 5 answers · asked by blahblah 2 in Mathematics

In addition, how many miles or kilometers would that same spaceship have to travel at one g before it achieves light speed?

2006-12-26 03:23:04 · 9 answers · asked by mbmattis2001 1 in Astronomy & Space

Integral Xtanx dx

2006-12-26 03:23:01 · 4 answers · asked by Gayan K 1 in Mathematics

2006-12-26 03:15:41 · 4 answers · asked by cljh 8 1 in Biology

can anyone tell me how to to build a radio without using th new advanced technology, i want to build one that is simple, almost like the very early generations of radios.

2006-12-26 03:14:43 · 1 answers · asked by Anthony 2 in Engineering

how long would it take to drive or walk around the perimeter of a 150,000 acre area in florida thanks

2006-12-26 03:12:21 · 6 answers · asked by pretty j 1 in Mathematics

does this mean i am an indigo person because i used to think in an advanced way a lot now that i remember. i used to imagine how the world was going to end and what there was going to be after humans, i also used to be interested in advanced science like cells and all this kind of stuff this happende when i was about like 3 to 5 years old???please help me!!!also, if i am an indigo person tell me please what this means and if am normal. oh and i used to think about space and believe that it was impossible for space to be infinite and for it to be something that nothing did it, too.....

2006-12-26 03:11:58 · 5 answers · asked by Anonymous in Astronomy & Space

2006-12-26 03:08:04 · 12 answers · asked by blahblah 2 in Mathematics

Could someone please help me with these. The " ^ " denotes an exponents.

-*- Quadractic Equations -*-
x^2 - 10 = 0
x^2 - 2X +1=0

-*- Factoring -*-
x^2 -7 x +10
5n^3 + 20n^3 +15n
81x^4 + 3x

Thank You!

2006-12-26 03:07:58 · 7 answers · asked by Brad C 1 in Mathematics

I now understand what glycolysis is. But what organisms do alcoholic fermentation?

2006-12-26 03:06:44 · 10 answers · asked by lys 1 in Biology

Any type, an RN or just a regular old nurse.

2006-12-26 03:06:26 · 6 answers · asked by Dana Mulder 4 in Medicine

Hi, I need 6 functions of chromatin, but im not sure what they are. Help please?

2006-12-26 03:06:11 · 4 answers · asked by BJ 2 in Biology

2006-12-26 03:05:44 · 2 answers · asked by Anonymous in Engineering

Southern Massachusetts? Hope this doesn't sound stupid.

2006-12-26 03:03:47 · 5 answers · asked by Clrinsight 3 in Zoology

2006-12-26 02:54:33 · 2 answers · asked by Dinesh D 1 in Zoology

2006-12-26 02:53:42 · 2 answers · asked by Anonymous in Earth Sciences & Geology