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Science & Mathematics - 26 November 2007

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

2007-11-26 19:11:29 · 8 answers · asked by Mary S 1 in Astronomy & Space

2007-11-26 19:03:09 · 6 answers · asked by Anonymous in Engineering

as I've read this a couple of times.

strange ... coz I wrote a poem abt a very haunted GF clock once b4 I'd read some history abt this

but anyway ... any info on that?
ty

2007-11-26 18:56:31 · 12 answers · asked by deirdrefaith 4 in Paranormal Phenomena

east to west

or

southwest to northeast

2007-11-26 18:52:09 · 3 answers · asked by bob 2 in Weather

a herb that i only herd of
please tell me every thing about it

2007-11-26 18:48:09 · 1 answers · asked by Wesley!!! 3 in Botany

writing a song called "Sunday" - help me out here

beatmaker told me the beat is named Sunday
so i go with that and name the song Sunday
kind of a weird thing to center a song around
of corse i guess were all certerd around the sun
anyways
ive managed to keep the song hot (no pun intended) so far
but if anyone has any idead of whut i ould talk about in this thing let me kno
or just anything u know about the sun thats interesting
here whut i got:


Swimming / up in the sky
so high / on sundays
someday / we'll fade away
sunday / we burn out

so let it be known and let it be said
when i seen a lightbulb up above my head
the general ombeonce seemed to be right
the reflection of the music off of the light
so i move with the passion of a drunken whale
i can hear someone behind me saying "save the ale"
but i got way too much energy
so im sorry but i just gotta let it be free
we might get real hot and we might get burned
but there is no need to be concerned
were gonna keep going on down the streem
do i have to remind you that life is a dream

Swimming / up in the sky
so high / on sundays

just sleeping the whole day away
no telling the games that my mind L play
with the sun up above im starting to bake
running down a mountian twords a beautifull lake
in the middle of the lake is a friendly tree
that looks like right where i want to be
so i jump for her but shes too far away
yet flying threw the sky somehow i stay
and then i get closer, i grab her, i got her
i bend the tip of the tree down into the water
and then climbing out the water the tree stays in place
you shoulda seen the look that was on my face
also on my face was a bunch of drool
do i really got to get up and go to school?
i told you bout the games that my mind L play
i might even be wrong about what day is today

Swimming / up in the sky
so high / on sundays
someday / we'll fade away
sunday / we burn out

2007-11-26 18:47:25 · 2 answers · asked by Ouroboros 1 in Astronomy & Space

How to find unknown value of slopes for parallel segments and slopes of perpendicular line segments?

For example, -K/3, 1/5 (Parallel slope), K/7, -3/2 (Perpendicular line segments)


What are the steps and rules to do this so that I can do it on my own????

2007-11-26 18:44:37 · 3 answers · asked by Anonymous in Mathematics

I am having trouble evaluating this integral. Integrate 0 to T (x^4 - 8x + 7) dx

2007-11-26 18:43:13 · 2 answers · asked by xìn xīn 1 in Mathematics

I magnified the water alone and there were no objects. Tell me what you think the moving objects are. Sorry for the poor quality. It's the best I could do. It is magnified 400X. Click here to view: http://youtube.com/user/fumingo

2007-11-26 18:41:28 · 10 answers · asked by Anonymous in Astronomy & Space

2007-11-26 18:37:52 · 4 answers · asked by Sporadic 4 in Weather

5

2007-11-26 18:27:19 · 2 answers · asked by Anonymous in Mathematics

I am not a conspiracy theorist but a friend recently made a good point:
We don't really have any "proof" that we ever made it to the moon, well at least nothing that couldn't be spoofed.

I do know that the Russians have tried multiple times to land on the moon but have never made it there.

I just think its kind of funny that nobody else has ever been there, and we have NOT returned to the moon since the first time.

The Japanese are sending a satellite equiped with full HD imaging capabilities to take pictures of the moon; and supposedly they are going to try and take pictures of the "landing site!"

I personally believe we have been to the moon; but is there any real "proof'? and I would love to know how You feel and what You think!

Thanks! :)

2007-11-26 18:27:12 · 13 answers · asked by pkirsch 2 in Astronomy & Space

1) a solution is made by mixing 5.00mL 0.00300 M Fe(NO3)3 with 4.00 mL 0.00300 M KSCN and 3.00mL 1.0 M HNO3. After equilibrium is established, the concentration of Fe(SCN)+2 was determined to be 2.72 x 10^-4 M. Calculate the equilibrium constant for this reaction.

Fe+3(aq) + SCN-(aq) <--> Fe(SCN)+2(aq)


2) consider the equilibrium: A + 2B <--> 3C

at a certain temperature, 2.00 moles of A and 2.00 moles of B are placed in a 3.0-liter container. After equilibrium is established, the concentration of A is 0.5 mol/L. What is the value of the equilibrium constant, K?


does anyone know what to do?
thankyou!

2007-11-26 18:26:51 · 1 answers · asked by Anonymous in Chemistry

<3

2007-11-26 18:08:23 · 12 answers · asked by Nikki 2 in Mathematics

At 12:00 noon, Twin A with clock stays at rest while Twin B with telescope jumps to √(4/5) speed of light. Twin B, using telescope, observes Twin A's clock going more slowly because of relativistic doppler. After some time, Twin B suddenly reverses course and heads home at √(4/5) speed of light. Still using the telescope, Twin B observes Twin A's clock going faster, again because of relativistic doppler. At 1:00 pm, he notices that Twin A's clock now also shows 1:00 pm. When Twin B arrives back home with Twin A, how much older is Twin A than Twin B?

Bonus question: Why does Twin A, using telescope, NEVER sees Twin B's clock showing the same time as Twin A's clock?

2007-11-26 18:08:06 · 4 answers · asked by Scythian1950 7 in Physics

anyone know how to simplify this and the steps to do so. ³√8x^6

2007-11-26 18:08:05 · 8 answers · asked by Anonymous in Mathematics

PLEASE HELP ME!!!!!

1. Suppose that 'a' and 'b' are positive constants.. Consider the function: f(x)=e^[-(x-a)^2/2b]
a.) determine the absolute max of this function and the corresponding x-value.
b.) determine the max and min. rates of change of this function and hte corresponding x-values.
c.) give a verbal description of the graph of htis function that includes the significant features.


This has something to do with L'Hopitals Rule, derivatives, increasing and decreasing tests, and inflection points.
But how do I do any of that without any numbers?!?!?!

2007-11-26 18:07:16 · 1 answers · asked by suggargurl302 2 in Mathematics

I got this puzzle for my Psych class to do where you have to touch everyborder without it going over it twice in a continuous line.

Heres a picture of what it the puzzle is and the other picture is what i got soo far, i still didn't get to touch the top right line. Its driving crazy!

http://i17.photobucket.com/albums/b60/xashleyleyx/DSC01895.jpg

http://i17.photobucket.com/albums/b60/xashleyleyx/DSC01896.jpg

Basically the continuous line can cross over itself just as long as its not going over the border more than once.

also if anyone knows the name of this puzzle i would greatly appreciate it.

2007-11-26 18:06:35 · 5 answers · asked by xashleyleyx 4 in Other - Science

was originated in sagitarius and adopted by mily way?

2007-11-26 18:06:31 · 2 answers · asked by Anonymous in Astronomy & Space

A 1.80 kg block slides on a rough horizontal surface. The block hits a spring with a speed of 2.30 m/s and compresses it a distance of 11.0 cm before coming to rest.

If the coefficient of kinetic friction between the block and the surface is 0.560, what is the force constant of the spring?

I'm thinking k=F/X.

K=mass(Potential energy/X)^2

Please help :(

2007-11-26 18:00:45 · 2 answers · asked by revernance 3 in Physics

10 points to the first person who knows the correct answer to why fish really can't breathe on land (or any animal with gills for that matter).

2007-11-26 18:00:39 · 19 answers · asked by JMan 3 in Biology

One number is twice another number. If the sum of the two numbers is 87, what are the two numbers?

2007-11-26 17:55:37 · 6 answers · asked by Anonymous in Mathematics

Can you explain how to double first, THEN how to quintuple. Please spell it out, so I'll have examples for my other problems. Thx!

2007-11-26 17:41:51 · 5 answers · asked by C F 1 in Mathematics

In typical transmission lines we have four wires that are made out of copper. Treat these lines as four resistors in parallel. Each of the wires has a diameter of 16 mm. What would be the power loss if the lines were made out of aluminum? Use resistivities of copper= 1.7x10^-8 ohms*m and aluminum =2.8X10^-8 ohms*m
I got an answer of 0.05MW but that's clearly wrong. Could someone give me hand? Thanks!

2007-11-26 17:30:52 · 1 answers · asked by ¿ /\/ 馬 ? 7 in Physics

A suspension bridge with weight uniformly distributed along its length has twin towers that extend 75 meters above the road surface and are 400 meters apart. The cables are parabolic in shape and are suspended from the tops of the towers. The cables touch the road surface at the center of the bridge. Find the height of the cables at a point 100 meters form the center. (Assume that the road is level)

Can you please explain how you found your answer?

2007-11-26 17:29:02 · 5 answers · asked by BBT 1 in Mathematics

1.-3/-8 * -7/-12

2.12g/25 * 5/2g

can you explain them to me?

2007-11-26 17:28:09 · 2 answers · asked by !BOMB! 1 in Mathematics

2007-11-26 17:26:06 · 8 answers · asked by lt_8o8 1 in Geography

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