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Science & Mathematics - 25 August 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

It's so fake to me! Science! I do not believe that they really know how a star forms or what it is made of, just the same as the moon, i don't believe they ever landed on it! God placed the solar system far away from us so we will leave it alone, some things we must go without knowing! Plz tell me your thoughts

2007-08-25 12:23:22 · 9 answers · asked by metallicarocksgrl 1 in Astronomy & Space

log(^2)64=x

^2= squared i need help!

2007-08-25 12:22:48 · 6 answers · asked by Anonymous in Mathematics

Do you guys know of an astriod coming towards Earth, I hear 2029-2028- and we would be able to change its direction, but it will come back 2036.
What do you know about it? just cruious.

2007-08-25 12:14:26 · 10 answers · asked by Anonymous in Astronomy & Space

If its the biggest void, and we're moving away from it,.. Is it possible that that is the center of the Universe?

Where the biggest bang of all happened?

Kinda makes you wonder if there is anything there at the center of it all.

Or perhaps that its really God's doorstep,.... just wondering.
cheers all!!

2007-08-25 12:13:37 · 14 answers · asked by somber_pieces 6 in Astronomy & Space

10x^3 – 14x^2 – 5x + 7 =

2007-08-25 12:12:25 · 5 answers · asked by snickernikki727 1 in Mathematics

Air resistance can be neglected

2007-08-25 12:11:46 · 3 answers · asked by kntagler 1 in Physics

The displacement of a string carrying a traveling sinusoidal wave is given by y(x,t) = A sin (kx-wt-)φ. At time t=0 the point at x=0 has a displacement of 0 and is moving in the +y direction. The phase constant φ may take the value:
a. 180 deg. b. 90 deg.

2007-08-25 12:03:43 · 1 answers · asked by MatT 7 in Physics

I have a (black) ti83. and i want (and need) a (pink)ti84
=]

what are the price differences?
what are the main differnces?
what will the value be in approx. 5 years?(of each calculator)

2007-08-25 12:00:27 · 7 answers · asked by Anonymous in Mathematics

2007-08-25 11:58:33 · 3 answers · asked by robyn m 1 in Geography

like say you use it to get resin off your hands at least 10 times a day... can or is it harmfull??

2007-08-25 11:53:58 · 4 answers · asked by Anonymous in Medicine

The simplest form of matter can be called

2007-08-25 11:46:33 · 3 answers · asked by Mike H 2 in Chemistry

The voltage regulator has a 110v output plug. The output total is labeled 0.5 kva. I do not have a "step-up, step-down" converter that goes to 1300 watts so I am wondering if this gadget can do the job.

2007-08-25 11:44:54 · 9 answers · asked by Karl V 1 in Engineering

2007-08-25 11:44:09 · 8 answers · asked by Anonymous in Earth Sciences & Geology

Ok, heres the questions:
How is the enthalpy of formation of calcium carbonate different from the enthalpy of decomposition of calcium carbonate?

What would the chemical equation for the enthalpy of formation of calcium carbonate be?

and...

What standard conditions are used to get the standard enthalpy of formation for calcium carbonate ?

Help please.... I'm really stuck, thank you.

2007-08-25 11:41:21 · 1 answers · asked by Anonymous in Chemistry

Ok, so I am totally lost on this type of problem as well (I have posted another question involving dimensional analysis).
The question states:

A typical normal loss of water through sweating per day for a human is 4/5dL. What is the volume, in liters, of sweat produced per day?

First, I need to say that I have do not have ANY background in chemistry at all, and I am supposedly taken an 'introductory' course in chemistry. My professor assumes that I know difference between metric and english measurements (and I don't, as none of my high schools touched the subject), so I am already lost, in that respect.

Secondly, I don't even know what dL could stand for? I know the mL is milliliter, cm is centimeter, etc.; but I am completely clueless to dL.
How do I even go about a problem like this? Is this involved in fractions/canceling out of units of measurement or what? I am not asking for a final answer, just a baseline to start out the problem; help me understand the process..

2007-08-25 11:40:41 · 3 answers · asked by Cece 2 in Chemistry

What is best for us?

2007-08-25 11:40:20 · 6 answers · asked by someone 5 in Chemistry

I know that they, obviously, encircle the galactic centre, but how do nearby stars interact with one another? Do they sometimes collide and if so how often?

Is their motion ordered or chaotic?

2007-08-25 11:39:12 · 5 answers · asked by tuthutop 2 in Astronomy & Space

t^2+1=13/6t

2007-08-25 11:37:16 · 3 answers · asked by luicanna 1 in Mathematics

2007-08-25 11:35:36 · 13 answers · asked by jusbeinapain 1 in Astronomy & Space

Find three consecutives integers such that the sum of their squares is 77

2007-08-25 11:35:30 · 4 answers · asked by luicanna 1 in Mathematics

between a bear a reabbit and alligator which of these four consume the most cal/g of body weight?
which of these consume the most total calories per day?

2007-08-25 11:35:21 · 4 answers · asked by Anonymous in Biology

2007-08-25 11:34:34 · 4 answers · asked by Dude 1 in Weather

If this were so, why have we not found the incredible number of fossils of transitional species that supposedly exist along the evolutionary line of all known living organisims today?

2007-08-25 11:30:26 · 12 answers · asked by Anonymous in Earth Sciences & Geology

very hard my friend wants to know

2007-08-25 11:28:20 · 4 answers · asked by hiuh 2 in Mathematics

the cube root of this number is more than the smallest prime

1st correct guess wins

2007-08-25 11:27:45 · 8 answers · asked by bubblepup13 3 in Mathematics

2007-08-25 11:22:06 · 3 answers · asked by Anonymous in Earth Sciences & Geology

Now let me see if I got this straight. As a spaceship approaches light speed, the time experienced by the astronauts slows to a crawl, but the distance travelled by the ship increases then why would interstellar travel be impossible? Why not maximize speed, minimize time to less than a day and maximize distance to the closest star?

2007-08-25 11:17:27 · 15 answers · asked by ? 1 in Astronomy & Space

can someone explain the concept of nothing to me?

2007-08-25 11:11:52 · 8 answers · asked by Ryan G 2 in Astronomy & Space

When the big bang happened, did space expand with it? Or was space always there and the big bang exploded into it?

2007-08-25 11:07:51 · 3 answers · asked by Ryan G 2 in Astronomy & Space

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