Science & Mathematics - 25 July 2007

2007-07-25 03:01:00 · 8 answers · asked by Anonymous in Biology

I just want to know the part were.
If I were to go on a space ship which travels at the speed of light for a month and come back to earth, when I arrive back my younger brother will be older then me.

Now how does that work.

2007-07-25 03:00:19 · 4 answers · asked by Anonymous in Physics

2007-07-25 03:00:00 · 8 answers · asked by Anonymous in Astronomy & Space

2007-07-25 02:53:38 · 9 answers · asked by Gina Y 1 in Zoology

I have heard numerous stories about black holes and that they contain "worlds" inside them or that they can be used for space travel from one point in the universe to the next point. Seriously though, what is up with black holes? What is the story?

2007-07-25 02:52:08 · 10 answers · asked by Anonymous in Astronomy & Space

ψ1 = A sin kx

ψ2 = B exp(-kx)

Show by direct substitution into the given version of the Schrödinger equation that ψ1 and ψ2 can indeed be possible solutions of the time-independent Schrödinger equation.

2007-07-25 02:49:28 · 2 answers · asked by walt 2 in Physics

2007-07-25 02:44:01 · 1 answers · asked by Anonymous in Medicine

2007-07-25 02:43:30 · 2 answers · asked by Anonymous in Medicine

what would you put it in?

2007-07-25 02:42:26 · 7 answers · asked by Jess 5 in Astronomy & Space

Hello,
I am stuck on these two particular problems in dealing with radicals. I'm doing very well in algebra in general, but i'm getting stuck when it comes to roots and radicals. Could someone please check my work for me? I tried the best i could to figure them out. I would really appreciate it.

1.) Simplify-- √200x^3 = 10x^2√4x
2.) Find the product of (√3 -√2)(√3+√2) = √9 - √4

2007-07-25 02:41:38 · 6 answers · asked by N 3 in Mathematics

Perform the indicated operations. Remember the rules for the order of operations.

9-(-2)(-7)

2007-07-25 02:34:21 · 9 answers · asked by ray 1 in Mathematics

Fet's input is connected with low impedance input then how it is used as voltage variable resitors?

2007-07-25 02:32:27 · 1 answers · asked by Anonymous in Engineering

I hate them horrid little insects which only as far as i can see only live to be aggressive to humans

2007-07-25 02:29:06 · 7 answers · asked by Anonymous in Zoology

The Friends of the library meet on the third Sunday of every month. What is the latest possible day of the month that this meeting could take place?
a) the 20th b) 21st c) 22nd d) 23rd e) 24th

The lengths of 2 sides of a triangle are 2 and 21. What is one possible length of the third side?

2007-07-25 02:27:41 · 3 answers · asked by Anonymous in Mathematics

the the exactly pi=3.15 with out any a doubt

2007-07-25 02:23:42 · 6 answers · asked by amira_3dmax 1 in Mathematics

I keep seeing these beetle like things...they attach themselves to anything and will bust out of their own bodies/shells. I guess that it is shedding itself. Anyways when I go into the backyard every morning I see their shells every where. If anyone has any idea that what type of beetle this is, it would help me out a bunch..

2007-07-25 02:23:10 · 2 answers · asked by christina g 3 in Zoology

http://i182.photobucket.com/albums/x225/ekclvria/bellesouthbwaegm063ld.png

Names anyone ? =/

2007-07-25 02:20:46 · 5 answers · asked by mia kc 1 in Botany

a power transformer is showing abnormal temperature rise (oil temp) even at no load. its all electrical test results are satisfactory.

2007-07-25 02:20:25 · 4 answers · asked by paddy 1 in Engineering

2007-07-25 02:18:54 · 4 answers · asked by Motunrayo A 1 in Biology

a) Calculate the value of the discriminant of x²+4x+4=0

b) By examining the sign of the discriminant in part a, how many x- intercepts would the graph of y=x²+4x+4 have? why?

2007-07-25 02:18:29 · 8 answers · asked by DEE H 1 in Mathematics

What i mean is, when we use red shift to backup the theory that the universe is expanding, therefore stars moving away from us, does this red shift also show some stars that are moving a similar speed to us ie not much or no red shift, or are all stars moving away from one another. Are some stars behind us catching up to us? and some in front moving further away? Or are we catching up to ones in front, or speeding away from ones behind? Does red shift show this information?

2007-07-25 02:18:06 · 9 answers · asked by indie9999 2 in Astronomy & Space

I need to learn it for school....are there also any other handy math mnemonics you all know that could help me at class?thanks

2007-07-25 02:17:13 · 3 answers · asked by eatdungumbridge 3 in Mathematics

hally's comet go to the center of the galaxy and come with tall tail carry the ions and hydrogen and dust and carry them until it becomes above the sun the gravity of the sun attract the materials to complete the burning until the comet hally comes in the next time ????( what do you think ) this is exactly the truth

2007-07-25 02:08:13 · 3 answers · asked by amira_3dmax 1 in Astronomy & Space

2007-07-25 02:05:33 · 3 answers · asked by Angel_ynah . 1 in Zoology

a friend of mine send me a message that goes like this:

"scientists have proven that human minds are linked with each other through nueron activities.

so if you are thinking of someone all day long without any reason at all, he/she is thinking of you too.

-time magazine"

2007-07-25 02:02:34 · 9 answers · asked by esh 1 in Astronomy & Space

2007-07-25 02:02:20 · 1 answers · asked by tedthewizard 1 in Physics

2007-07-25 01:58:30 · 7 answers · asked by a2darizze 1 in Mathematics

If I was to go out into a dark field,where theres no light pollution on a clear night with an 8"Meade LX90GPS with an Autostar finder,would I be able to observe Planets and Galaxys?,and is there a way to get a Galaxy in full colour looking through a telescope?

2007-07-25 01:55:31 · 6 answers · asked by Anonymous in Astronomy & Space

2007-07-25 01:54:54 · 5 answers · asked by okorob 1 in Earth Sciences & Geology

under what circumstances can an object moving with aconstant speed(uniform magnitude of its velocity), still have acceleration?

second question:tell in what two basic ways the velocity of an object can change to produce an acceleration.

3rd:what change in motion is produced on a freely-falling object near Earth's surface by the acceleration due to gravity?

4th:describe the path followed by an object such as a baseball that is initially thrown horizontally near Earth's surface.(does it travel in a straight line?)

2007-07-25 01:47:56 · 2 answers · asked by genesis 1 in Physics