Science & Mathematics - 15 December 2007

is big bang theory is good about the universe or someone postulated a good one? can i get more information about the origin of universe?

2007-12-15 19:28:57 · 13 answers · asked by V J 1 in Astronomy & Space

2007-12-15 19:20:18 · 4 answers · asked by deepak d 1 in Botany

help please!


6x^2 + 19x + 8 = 0

a. x = 3/8; -177/50
b. x = -3/8; 177/50
c. x = 8/3; 1/2
d. x = -8/3; -1/2

2007-12-15 19:19:47 · 8 answers · asked by anna 1 in Mathematics

Here are the answer choices:

A) equilateral
B) right
C) acute
D) scalene
E) obtuse

When you answer it, can you tell me how you did it? Please? thanks.

2007-12-15 19:00:05 · 8 answers · asked by Anonymous in Mathematics

Solve.

(2z - 1)^2 = 25





Let r(x) = 5x + 1 and s(x) = x^2 - 5

2007-12-15 19:00:02 · 3 answers · asked by Anonymous in Mathematics

2007-12-15 18:47:13 · 1 answers · asked by kkader k 2 in Physics

A sphere of radius 3 cm has an unknown amount of charge uniformly distributed over its volume. If the electric field at a distance 10 cm from the center of the sphere is 3 x10-3 N/C and points radially inward, what is the total charge on the sphere?

i'm trying to treat the sphere as a point charge, but i'm not getting a reasonable answer.

2007-12-15 18:40:25 · 4 answers · asked by Anonymous in Physics

How could it be used indirectly to power automobiles?

2007-12-15 18:34:49 · 13 answers · asked by Anonymous in Physics

If a ball is thrown up with velocity v at an angle thata,
WHY is the smallest kinetic energy .5m(vcosthata)^2 (kinetic energy at the top of trajectory) isnt it .5m(vx)? because the only v would be in the x direction ...... and vx is not vcosthata

also how do you get max height? the answer is (vsinthata^2)/2g

2007-12-15 18:34:13 · 4 answers · asked by swtgirl988 2 in Physics

1.) (-12.2)x4(x)
2.) -5/6 (-60/2) x^2
3.) -x^2 - x (2x-4)
* please show all the please and thank you so much!! :]]

2007-12-15 18:34:04 · 2 answers · asked by Clueless Person 1 in Mathematics

2007-12-15 18:33:59 · 14 answers · asked by Anonymous in Astronomy & Space

a 15kg ball of radius 4cm is suspended from a point 2.94m above the floor by an iron wire of unstretched length 2.85m. the diameter of a wire is 0.090cm and it's young's modulus is 1.8*10to the 11 power N/msquared. if the ball is set swinging so that its center passes through the lowest point at 5m/s by how much does the bottom of the ball clear the floor?

2007-12-15 18:22:30 · 2 answers · asked by globie 1 in Physics

Why not set a single time that rules the whole world?
For me, this is the worst scenario with these different times:
country A will hav a countdown for a new year's tick: 5, 4, 3, 2, ...

5 hours or so...
country B will have its own countdown... 5, 4...

Isn't it senseless? We celebrate it in different times...a difference reaching 23+ hrs.

The world's age adds every year, and that addition is dependent on where you are standing.

Think of this... it's better to see ALL human beings celebrate the turn of the year simultaneously.

2007-12-15 18:19:48 · 9 answers · asked by Striker 2 in Geography

what would you do if you had a bionic chode?
what if you were the 3 million dollar chode man?

2007-12-15 18:19:37 · 2 answers · asked by Anonymous in Other - Science

2007-12-15 18:15:25 · 9 answers · asked by Stacy M 1 in Mathematics

Is there some type of filter, gel sheet or fabric which i can put in front of a normal light bulb to make it look white? OR is there anything which i can do to make the light white?

2007-12-15 18:12:59 · 7 answers · asked by Anonymous in Other - Science

or if not tiles, what are other alternatives in which we can recycle clam shells into? thank you

2007-12-15 18:08:33 · 7 answers · asked by kksk1025 2 in Earth Sciences & Geology

someone on alchohol pased out in 0 degree weather for 3 hours

2007-12-15 18:07:44 · 4 answers · asked by pamanlar 1 in Medicine

the ones im taking now are called diane 35. they have 35 mcg estradiol and 2 mg cyproterone acetate in each pill.

2007-12-15 18:01:55 · 3 answers · asked by Anonymous in Medicine

I just graded an entire exam out of 100 points, now I have to turn the grade into points on a scale out of 15. How do I do that? Im a humanities person, not a math major dammit! :-(

2007-12-15 18:01:50 · 6 answers · asked by Anonymous in Mathematics

2007-12-15 17:59:54 · 7 answers · asked by Anonymous in Biology

2007-12-15 17:54:20 · 2 answers · asked by Anonymous in Chemistry

2007-12-15 17:53:25 · 10 answers · asked by chinese_helicopter 2 in Engineering

2007-12-15 17:42:18 · 6 answers · asked by Anonymous in Chemistry

Directly or Indirectly?

2007-12-15 17:37:02 · 6 answers · asked by Chris 2 in Biology

2007-12-15 17:35:25 · 7 answers · asked by Shashi Ranjan 2 in Astronomy & Space

The directions state:
Determine the mole ratio of oxygen to tin in the product.

I figured out that there is:
0.169334 mol Sn
and
0.003125 mol O

But what's the product?
And how do I find the mole ratio?

Please help! Thanks :)

2007-12-15 17:31:22 · 1 answers · asked by ciabatta 2 in Chemistry

I saw in tv gunment shooting randomly towards sky and i wonder whether bullets wil hit any one in the head

2007-12-15 17:30:04 · 14 answers · asked by suresh 1 in Astronomy & Space

This makes me sick to think about. Honestly how did Space appear. Cause it cant just come out of nothing. there would be a blank. but the blank had to come from something right? its neverending and hurts my head.

2007-12-15 17:22:21 · 13 answers · asked by Anonymous in Astronomy & Space

I just stumbled upon this video:
http://www.youtube.com/watch?v=rc7mkHtuLOs
It seems to be old NASA footage of a moon fly-over, eventually showing what appears to be some kind of spacecraft which seems to have been there for aeons.
Could that be real?
Whatever you think, can you also give reasons, please?
Thanks.

2007-12-15 17:16:29 · 16 answers · asked by Tahini Classic 7 in Astronomy & Space