Science & Mathematics - 4 September 2007

2007-09-04 04:26:36 · 19 answers · asked by Rocker CFR_Cluj 1 in Paranormal Phenomena

2007-09-04 04:22:46 · 1 answers · asked by Anonymous in Engineering

How it is possible that for all observer the speed of light is constant irrespective of their own speed

2007-09-04 04:20:56 · 6 answers · asked by Bikramjeet Singh 1 in Astronomy & Space

I last read Budd Hopkins' "Witnessed," and checked out the skeptic rebuttals out there. What other books published since '96 or earlier can I read to get me up to speed on this topic?

2007-09-04 04:17:27 · 12 answers · asked by dinotheorist 3 in Paranormal Phenomena

How do I find the limit, L, for:

lim√x
x => 16

then how do i use the ε-δ definition to prove that L is the limit?

2007-09-04 04:14:31 · 1 answers · asked by Anonymous in Mathematics

a squard - b squard + 2bc - c squard

2007-09-04 04:13:57 · 9 answers · asked by Benita A 1 in Mathematics

In rainy season the speed of the stream increases to 10m/s.
What is the mass M of the biggest rock, which the river can drag and roll in rainy season?

2007-09-04 04:13:33 · 2 answers · asked by Alexander 6 in Physics

2007-09-04 04:09:33 · 10 answers · asked by Dan 2 in Physics

1. find the root of the equation Z^2 - Z + 1 =0

^ means to the power of.

2007-09-04 04:08:52 · 4 answers · asked by Mystic healer 4 in Mathematics

2007-09-04 04:08:19 · 9 answers · asked by Anonymous in Mathematics

and it is also covered with water from all sides

2007-09-04 03:54:27 · 11 answers · asked by Anonymous in Geography

2007-09-04 03:53:49 · 2 answers · asked by Anonymous in Earth Sciences & Geology

2007-09-04 03:51:47 · 20 answers · asked by Anonymous in Astronomy & Space

Consider a particle in between two rings which have a potential difference across them. How do u find the potential at any point in between the two rings which could be off axis? Once i find potential , how can i find electric field?

2007-09-04 03:41:37 · 1 answers · asked by M N 1 in Astronomy & Space

calculate lim-->9 f(b) by first finding a continuous function which is equal to f everywhere except b=9

2007-09-04 03:34:50 · 4 answers · asked by Anonymous in Mathematics

2007-09-04 03:34:44 · 2 answers · asked by Carla B 2 in Biology

2007-09-04 03:32:09 · 11 answers · asked by Benita A 1 in Mathematics

Centripetal force, centrifugal force, all right, but how is such a delicate balance maintained in nature? Why don't planets collide with each other and stuff like that?

2007-09-04 03:27:38 · 7 answers · asked by ♣♠The Boss♠♣ 3 in Astronomy & Space

Please explain to me what the crests of a De Broglie electron wave represent.

I keep hearing that electrons have wave like properties, but I don't understand what kind of wave properties. Are they mechanical displacement waves, as would represent the plot of a moving pendulum vs. time? Do the electrons behave as lights does, that is as EMR waves and the De broglie wave functions represent various fields?

Or are these "probability of location" waves?

Please help me understand! What do the crests of a De Broglie elctron wave represent?

2007-09-04 03:27:12 · 3 answers · asked by kmm4864990 1 in Physics

you may assume that lim x-->o ((sinx)/(x))=1

2007-09-04 03:26:49 · 2 answers · asked by Anonymous in Mathematics

If the astronaut put plants inside their sealed helmets, could the plants live off the carbon dioxide given out by the astronaut and the astronaut live off the oxygen given out by the plant, instead of having air canisters on their back?

2007-09-04 03:24:10 · 13 answers · asked by simon c 1 in Astronomy & Space

(>'.')> <( '.' )> <('.'<)
~ ~ Kirby Dance~~

2007-09-04 03:21:33 · 10 answers · asked by ? 2 in Astronomy & Space

As the moon passes over a point on the earth surface, the water is drawn up by gravitational pull, which explains why one of the tides occurs. Why is there a corresponding bulge of water on the other side of the earth?

2007-09-04 03:21:21 · 9 answers · asked by Anonymous in Geography

Prime numbers are numbers that can only be made by multiplying that number by one; 1,2,3,5,7,11,13,etc. what are the other numbers (4,6,8,9,10,12. . .) classified as?

2007-09-04 03:15:00 · 9 answers · asked by xxxbleedingspiritxxx 2 in Mathematics

Regarding finding vectors

2007-09-04 03:11:20 · 1 answers · asked by Anonymous in Physics

the limit of the function does not exist.

lim f(x) ≠ lim f(x)
x => c- x => c+

what makes it a discontinuity and is it removable or not?

2007-09-04 03:08:27 · 1 answers · asked by Anonymous in Mathematics

If most astronomers agree the universe is moving away from each other and expanding,then why do they also agree that our galaxy the Milky Way and The Andromeda Galaxy are heading straight at each other.

2007-09-04 03:08:10 · 3 answers · asked by Anonymous in Physics

In the Sci-fi movies they show explosion in space, how come there is fire and sometimes smoke when there is no oxygen in the universe?

2007-09-04 03:04:49 · 16 answers · asked by sabir s 2 in Astronomy & Space

it looks like this:

lim L x ||
x => 3+

the brackets around the x are wierd looking, like to two capital L's. I have no idea how to graph it... It's a limit problem, so I have to find the limit for it, as x approaches 3 from the left.

2007-09-04 02:58:34 · 2 answers · asked by Anonymous in Mathematics

2007-09-04 02:58:04 · 6 answers · asked by Robert C 1 in Astronomy & Space