Science & Mathematics - 18 December 2007

2007-12-18 03:26:27 · 9 answers · asked by Anonymous in Mathematics

2007-12-18 03:25:19 · 1 answers · asked by k,b 1 in Chemistry

2007-12-18 03:24:17 · 6 answers · asked by RivalMikhail 1 in Mathematics

2007-12-18 03:22:56 · 7 answers · asked by kuc2215 2 in Mathematics

2007-12-18 03:21:50 · 9 answers · asked by kuc2215 2 in Mathematics

In layman's terms, why is it that Einstein's famous equation showing that matter is just concentrated energy (E=mc2) and matter-energy can be converted into eachother, why is it that it so happens to be the speed-of-light squared (times mass) that is equal to energy??? What is so special about the speed of light, which is just how fast light photons move?

Why isn't it 122,000 miles per second squared x mass = energy or 1,000,0000 miles per second squared x mass = energy???

What, exactly, is so darn special about the speedlimit of photon particles that somehow fits into an perfect equation relating to energy/mass equivalence? Is this just a miraculous, unbeliavable coincidence that the number just so happens to be the speed of light that is squared?

Thanks! I look forward to reading your responses!

2007-12-18 03:21:46 · 8 answers · asked by Anonymous in Physics

I was trying to figure out if "humanity" lived up to scrutiny. Are humans the only creature that do things like free an animal that may bite us, etc? Examples: a dog freeing a stranger from a trap, a monkey freeing a snake.

2007-12-18 03:21:01 · 5 answers · asked by Anonymous in Zoology

2007-12-18 03:18:31 · 5 answers · asked by Anonymous in Mathematics

Persons that catch on fire while sleeping. THat they just start burning with no reason. And in the show they gave actual cases in the U.S and England. Does anyone know if its true? ANd if it is what is it call and how does it happen??

2007-12-18 03:16:45 · 5 answers · asked by Anonymous in Physics

What is the common factor of this data?

(-10, 16), (0, 12), (10, 9), (20, 6.75)

Is it:
1/3
3/4
or 4/3

2007-12-18 03:16:45 · 5 answers · asked by Anonymous in Mathematics

I need a simple example of how to use this method, just to understand how it works.
Example with ODE would be great, anyone know such
sites or something? Thanks!

2007-12-18 03:14:02 · 3 answers · asked by Specter 1 in Mathematics

My grade weighting is 40% first quarter, 40% second quarter and a 20% final to total for the semester. I can't remeber the scale but the one we use is with grade letter versus percentage.

2007-12-18 03:12:41 · 3 answers · asked by Anonymous in Mathematics

Which polynomial is irreducible and prime?


- 2a2– ab – b2

- 2a2 – 3ab + b2

- 2a2 – 3ab – b2

- 2a2 + ab – b2

2007-12-18 03:12:15 · 2 answers · asked by Lola L 1 in Mathematics

2007-12-18 03:11:03 · 1 answers · asked by Kiajuana S 1 in Botany

1)............... is the gaseous byproduct when sodium metal is added to ethanol

2)what type of orbital do the lone pair electrons of oxygen occupy in ethanol? ............
3)when two carbenes collide, they dimerize to give an ................
4)distillation of mixtures of ethanol and water cannot increase the ethanol content of the mixture above 95% because this solution boils at lower temperature than either pure ethanol or pure water . the term which describes this lower boiling point mixtures is ...............
fill in the blank plz, answer any question that u know
thanks already for whoever answers.
happpy holidays

2007-12-18 03:09:20 · 3 answers · asked by lscence 2 in Chemistry

it is for a chemistry project that i really need help with

2007-12-18 03:07:33 · 1 answers · asked by Coopman17 1 in Chemistry

and i dont mean a horoscope. means that the sun starts its year in the constellation virgo? is that what that means?

2007-12-18 03:07:13 · 3 answers · asked by wolffromthenothing 2 in Astronomy & Space

How much higher in the sky (in degrees) is the Sun at it's highest point on the longest day (and also on the shortest day) in Plymouth, compared to Edinburgh?

Any ideas?

2007-12-18 03:06:24 · 6 answers · asked by SteveLaw 4 in Astronomy & Space

I am having some trouble getting my matrix math correct. I have a translation, rotation, and scale matrix working properly, but I want the rotation to be about an arbitrary axis. I have found a formula for a 3D matrix, but i only have x,y,w. Any help would be greatly appreciated and needed

2007-12-18 03:02:03 · 2 answers · asked by G M 2 in Physics

factor complety

2007-12-18 03:01:49 · 6 answers · asked by tracy n 1 in Mathematics

The answer is V: (-4,7) but how do you solve it?

2007-12-18 03:01:37 · 3 answers · asked by Cindy 3 in Mathematics

repelled by magnetic poles. Why is the ocean at the North Pole not show some effect.

2007-12-18 02:58:40 · 5 answers · asked by Anonymous in Other - Alternative

Is this a tornado of water?? The video is labled as "waterspout" -- maybe that's another name for it, i dont know... but I'm curious...

check it out > http://myspacetv.com/index.cfm?fuseaction=vids.individual&videoid=24140181

2007-12-18 02:57:08 · 5 answers · asked by Anonymous in Weather

2007-12-18 02:54:50 · 11 answers · asked by Addison 1 in Mathematics

cut the branch of tree and nutrint it from the vascular system with nutrutional slotions?

2007-12-18 02:54:38 · 2 answers · asked by mahdi s 1 in Botany

Use the Quadratic Formula To Solve The Equation.


2x^2 - 5x + 7 =0

a. 5/4 + √31/4
b. 5/2 + i√31/2
c. 4/5 + i√62/4
d. 5/4 + i√31/4



-4x^2 + 9x - 8 = 0

a. 9/8 + √47/8
b. 8/9 + i√94/8
c. 9/8 + i√47/8
d. 9/4 + i√47/4

2007-12-18 02:53:19 · 4 answers · asked by x x italian baby x x 1 in Mathematics

2007-12-18 02:53:12 · 5 answers · asked by Xilion 3 in Chemistry

Factor 4y³ + 20y² - 9y - 45.

Is it:
(y + 5)(2y + 3)²
(y + 5)(y - 5)(2y - 3)
(y + 5)(2y + 3)(2y - 3)

2007-12-18 02:47:40 · 3 answers · asked by Anonymous in Mathematics

2007-12-18 02:46:41 · 6 answers · asked by Kathleen H 1 in Biology

Use the Quadratic Formula To Solve The Equation


4x^2 + 7x - 10 = 0

a. -7/8 + √104/2
b. -8/7 + √418/8
c. -7/8 + √209/8
d. -7/4 + √209/4



-3x^2 + 5x - 5 = 0

a. 5/3 + i√35/3
b. 6/5 + i√35/3
c. 5/6 + i√35/6
d. 5/6 + √36/6

2007-12-18 02:44:30 · 4 answers · asked by x x italian baby x x 1 in Mathematics