Science & Mathematics - 17 July 2006

2006-07-17 12:00:21 · 16 answers · asked by princesslady1390 2 in Botany

So, okay, I was just thinking (crazy concept, I know).

So, consider, with reference to conservatin of energy: If the universe is infinite (giant vacuum with stars and galaxies that came from the big bang; I'm still not sold on the big bang or the big suck), and stars radiate energy in the form of photons, and convection happens on a 3D cosmic scale (or at least we consider energy as concentrated and wanting to escape, kind of like pressure), will galaxies and/or the universe eventually radiate off all of its energy into whatever lies beyond the galaxies?

IE, if we assume we're in an infinite void, and the very edges of the universe /galaxy are radiating photons outward into empty space, within nothing to absorb them, pull them, etc. Will the universe become less energeting through essentially evaporative cooling. IE, the photons / electrons / whatever readiating out into empty space removes energy from the universe.

2006-07-17 12:00:09 · 10 answers · asked by Michael Gmirkin 3 in Physics

How many known galaxies are there?

2006-07-17 11:57:45 · 6 answers · asked by Nikesfrshoutdabox 1 in Astronomy & Space

HE IS SEXY.

2006-07-17 11:54:51 · 8 answers · asked by Anonymous in Astronomy & Space

Hey guys, got a question,
Has technology developed enough in order to create something like "Starship" where you can just walk in Gate A and appear at Gate B. If it has been developing or if there is some progress on that could you please send me the source so that I could read that and present...

Thanks

2006-07-17 11:51:14 · 9 answers · asked by walkingdeath 2 in Physics

if from a heigest place in the world...we press the triger of a water
gun with ultra pressure,speed and water capasity(maybe impossible but
still, consider it magical), will water hit our head from
behin....adding that no obstacle comes in the way of the water.....

2006-07-17 11:50:04 · 7 answers · asked by Anonymous in Other - Science

2006-07-17 11:49:28 · 15 answers · asked by NumberGuyX 1 in Astronomy & Space

2006-07-17 11:48:30 · 9 answers · asked by Anonymous in Mathematics

2006-07-17 11:40:01 · 15 answers · asked by Anonymous in Other - Science

When the sky is blue, does it mean that the sky is actually free of cloud cover, or simply that the cloud is too rarified to be visible?

2006-07-17 11:39:53 · 8 answers · asked by AI000 2 in Weather

2006-07-17 11:33:51 · 19 answers · asked by Lion 1 in Mathematics

2006-07-17 11:27:48 · 26 answers · asked by Anonymous in Geography

2006-07-17 11:27:31 · 22 answers · asked by Mean Mr Mustard 4 in Physics

For what values of a and b does the function f(x)=x^3+ax^2+bx+2 have a local maximum when x=-3 and a local minimum when x=-1? The above equation should be read as x cubed plus ax squared plus bx plus 2. Just being safe

2006-07-17 11:27:11 · 2 answers · asked by poozak145 1 in Mathematics

trying to figure out how many possible combinations there are for social security numbers???? Please Help!!!!

2006-07-17 11:25:43 · 17 answers · asked by christopherjarrettmsn 1 in Mathematics

Here is what I have 10 foot wind-tirbine, 40 foot tower,24vdc perm magnet motor, six 12v truck batt connected parallel.
its all set up and functions well with a autonotive generator(not altanator) ond app automotive voltage regulator.However doesnt produce enough power. and i have changed the automotive generator to a 24vdc perm mag lil racale motor. and my question is HOW DO I REGULATE THE VOLTAGE AS TO NOT OVERCHARGE THE BATTERYS I need to make a voltage controler or modify other inexpensive means or other inexpensive aplications. thank you in advance

2006-07-17 11:23:11 · 6 answers · asked by fred p 3 in Engineering

How would you find the intervals on which f is increasing and decreasing, local maximums and minimums, the intervals of concavity, and inflection points for this equation: f(x)=x^2/x^2+3. This should be read as x squared over x squared plus 3.

2006-07-17 11:17:00 · 5 answers · asked by johnnyboy16978 1 in Mathematics

2006-07-17 11:14:55 · 10 answers · asked by ravenfan 1 in Other - Science

2006-07-17 11:14:07 · 10 answers · asked by shirie1977 1 in Other - Science

i keep getting different answers!

2006-07-17 11:11:49 · 4 answers · asked by thekorean2000 4 in Mathematics

2006-07-17 11:09:43 · 18 answers · asked by bubblyspirt 2 in Mathematics

Three guys check-into their last chance for a room for the night to attend a convention. The clerk tells them there is only one room left and it has twin beds but that he is willing to provide a roll-away bed, cost: Thirty dollars.They take it.
Later, the mgr sends bellman to room with $5.00 refund and apology for inconvenience.
Bellman pockets $2.00 (They stiffed him when checking-in!) thinking three into five doesn't compute anyway to ameliorate his conscience.
Each guy originally paid $10.00= $30.00. After refund $9.00 each =$27.00. Bellman got $2.00
$27.00 + $2.00 = $29.00...Where did the other dollar go that made the original transaction total $30.00?

2006-07-17 11:09:37 · 6 answers · asked by Anonymous in Mathematics

2006-07-17 11:08:48 · 16 answers · asked by MARK 1 in Other - Science

http://video.google.com/videoplay?docid=-4322650841860671469&q=world+trade+7
This vidieo gives a little more detail to my question. I've asked this questions several times. Its directed to the people who call us realist "crazy conspiracy theorist". Take the time and give me a scientific response to show how the World Trade Centers 1&2 and building 7 could have fallen at freefall speeds meeting no resistance. Without it being a controlled demolition. I'm fair I'll give best answer if you can disprove this "theory" beyond a reasonable doubt. Even on the far outside number of 12 seconds would not account for all the resistance of the concrete and steel of the rest of the building. If you disagree prove it. And for supporters add comments if you wish.

2006-07-17 11:05:42 · 11 answers · asked by captpcb216 2 in Physics

what happen with light where it goes?

2006-07-17 11:04:08 · 8 answers · asked by criss 2 in Physics

A ball is thrown upward from a platform 5.2 m high with a speed of 15 m/s at an angle of 40° from the horizontal. What is the magnitude of its velocity when it hits the ground? Note: You need to find the time taken first by solving a quadratic equation. Answer is t = 2.4 s.

2006-07-17 11:03:35 · 5 answers · asked by Lou 1 in Physics

2006-07-17 11:02:55 · 23 answers · asked by phillipblinkho@btinternet.com 1 in Astronomy & Space

16.b

This strand contains an insertion mutation:

- T A C T G T T G C G A A T G C A A T T -

The correct sequence of amino acids coded for by this strand is:
- A T G A C A A C G C T T A C G T T A -

How does this compare to
ATGACACGTTACGTTAA?

2006-07-17 11:01:20 · 2 answers · asked by starruinstarla 1 in Biology

Challenge problem:

Consider the polynomial
(x-7)(x-24)(x-25)-19
Construct a triangle whose sidelengths are the roots of this polynomial. What is the area of the resulting triangle? Justify your answer.

2006-07-17 11:01:02 · 7 answers · asked by mathematician 7 in Mathematics

A rock thrown horizontally from the top of a radio tower lands 17.0 m from the base of the tower. If the speed at which the object was projected was 9.50 m/s, how high is the tower?

2006-07-17 10:58:31 · 5 answers · asked by Lou 1 in Physics