Science & Mathematics - 9 September 2007

2007-09-09 11:35:53 · 4 answers · asked by kodakanblues 1 in Astronomy & Space

I just had an off the wall thought on space. If space is simply nothingness then how can anything be there? Could space be made up of subatomic particles, possibly smaller than dark matter? Maybe these subatomic particles are the medium that electromagnetic radiation uses to travel from one point to another.
this was just something that kind of popped in to my head. Tell me what you think?

2007-09-09 11:35:14 · 9 answers · asked by justask23 5 in Astronomy & Space

Each side of a square is lengthened by 3 inches. The area of this new, larger square is 64 square inches. Find the length of a side of the original square. (please show work)

2007-09-09 11:34:02 · 9 answers · asked by Anonymous in Mathematics

convert each into decimal form.
3.6 x 10^-2
736.9 x 10^5
0.0059 x 10^5
0.00059 x 10^-1

thanks

2007-09-09 11:33:28 · 9 answers · asked by Anonymous in Mathematics

What does this quote mean?

2007-09-09 11:31:40 · 1 answers · asked by xburned_icex 1 in Physics

2007-09-09 11:31:38 · 1 answers · asked by Anonymous in Biology

I'd do Geometry.

2007-09-09 11:31:05 · 5 answers · asked by Sonic Youth 1 in Mathematics

Science crossword - "The Web of Life- Preditor to Prey"

#1- the living part of an ecosystem (9 letters)

#2-a protective characteristic animals possess that allows them to hide from predators.(10 letters)

#3-Plants, certain protists and monerans are called ______
(9 letters)

#4- a major element found in teeth and bones of vertebrates (11 leters)

#5 Forms of framework for all organic molecules (6 letters)

2007-09-09 11:30:52 · 2 answers · asked by Anonymous in Earth Sciences & Geology

a.law.
c.observation.
b.theory.
d.fact.

2007-09-09 11:30:20 · 2 answers · asked by bammmmmmmmmmmmmm 1 in Earth Sciences & Geology

According to the "Manual of Steel Construction - Load & Resistance Factor Design, Second Edition", what is the maximum factored uniform load, in kips, for a grade 50 W21X132 beam with a span length of 25 feet?

2007-09-09 11:30:00 · 5 answers · asked by Rick Wesley 4 in Engineering

Have to build a line following robot any suggestions on what sites please? The robot must be able to be programmed with a PIC and must have indicators, that do the same as a car. any suggestions please?

Thanks in advance

2007-09-09 11:29:15 · 4 answers · asked by wayne319059 2 in Engineering

There are 20 birds sitting on a tree. A hunter comes along and sees all the birds. Then the hunter takes out his shot gun and is able to shoot 5 of the birds sitting on the tree. How many Birds are left?

2007-09-09 11:27:12 · 3 answers · asked by Kamesh M 3 in Mathematics

How far are satellites like DirecTV from Earth?

2007-09-09 11:25:56 · 3 answers · asked by Darth Revan 1 in Astronomy & Space

If a neutron is made up of densly packed neutrons...then what really happens when they collapse in a black hole? Do they create empty space somewhere else (another universe), or do they simply just break down to create quarks?

2007-09-09 11:22:55 · 9 answers · asked by justask23 5 in Astronomy & Space

sec^2xe^(tanx) dx

2007-09-09 11:21:09 · 1 answers · asked by Vince 1 in Mathematics

It's pretty straight forward that you take in the top sails in heavy wind, but why? Is it because they will tear and blow away, or for some other reason?

2007-09-09 11:19:48 · 5 answers · asked by Joe S 1 in Weather

Solve the system of equations by graphing , then classify the system as consistent or inconsistent and as dependent or independent.

9x - 9y = -54

9y - 9x = 54

2007-09-09 11:18:56 · 1 answers · asked by Anonymous in Mathematics

2007-09-09 11:14:33 · 8 answers · asked by liljoebro1234 1 in Mathematics

A parachutist descending at a speed of 9.40m/s loses a shoe at an altitude of 31.60m.

(a) What is the velocity of the shoe just before it hits the ground?

2007-09-09 11:14:20 · 3 answers · asked by Anonymous in Physics

bunch of numbers, what is the formula for finding the average?

2007-09-09 11:12:00 · 8 answers · asked by Anonymous in Mathematics

2007-09-09 11:11:55 · 1 answers · asked by damigurl05 1 in Biology

plz provide date. time if possible. thanks :)

2007-09-09 11:09:17 · 3 answers · asked by jell0fello328 2 in Astronomy & Space

I have this problem for this science question. I know it may sound kinda dumb but still. Okay, you were going to the lighted surface of the moon ,but due to some difficulties you had to land at a spot some 200 miles away from the rendezvous point. Would you still be in space?
That's not really my question but I need the answer to organize somethings.

2007-09-09 11:08:19 · 5 answers · asked by PurpleLiliy 2 in Astronomy & Space

I know its all by means to believe that aliens exist from belief but I have read stories and seen videos of people video taping UFOs near the mountians. Some stories even said that people was abducted by aliens. Is it true that aliens may already be on the planet of Earth? Is there any signs of activities that can prove there might be aliens already here?

2007-09-09 11:07:28 · 19 answers · asked by Nes 1 in Astronomy & Space

You swing a 2.60kg stone in a circle, using the full length of a thin 80.0cm rope.
At what speed should you swing it so its acceleration will be 9.8 m/s^2 ?

2007-09-09 11:06:35 · 1 answers · asked by Anonymous in Physics

and one more two planes intersect in only one point? geometry
HELP!! true or false

2007-09-09 11:06:08 · 2 answers · asked by Anonymous in Physics

2007-09-09 11:04:32 · 15 answers · asked by Anonymous in Astronomy & Space

2007-09-09 11:04:23 · 7 answers · asked by Anonymous in Physics

2007-09-09 11:04:18 · 2 answers · asked by Mj 1 in Astronomy & Space

i'm writing a book where my characters travel through time.. i know time travel isn't possible now, but does anyone know the most plausible scientific theory of how it could be possible? i think i read something about a wormhole? i don't want to get all into a scientifc explanation in the book but i would like it to be a little less daft than magic.

2007-09-09 11:03:17 · 4 answers · asked by regina 5 in Astronomy & Space