Science & Mathematics - 30 August 2007

2007-08-30 08:06:28 · 15 answers · asked by charlesdclimer 5 in Astronomy & Space

the equation started as (x-3)²=4(y+6) and when i work it out i get y=x²-6x-15 over 4. I'm tryin to graph it but if i plug in 2 and 4 for the values of x, the value for y is the same for both of em. isn't that not supposed to happen?

2007-08-30 08:01:16 · 2 answers · asked by Anonymous in Mathematics

2007-08-30 08:00:54 · 5 answers · asked by loverofpower 1 in Mathematics

If I see a flash of lightning and count 5 seconds until I hear the thunder roll----then how far away was the lighting strike itself? I know that there is a crude way to measure how far away a lightining strike is.

There was a thunderstorm early this morning and it made me curious.

2007-08-30 08:00:15 · 5 answers · asked by Anonymous in Weather

how long is one side of the playground and go to nearest tenth

Thanx

2007-08-30 07:57:20 · 9 answers · asked by Anonymous in Mathematics

2007-08-30 07:57:01 · 4 answers · asked by mommyof3 2 in Chemistry

I'm supposed to be defining the word and explaining it. I'm not sure how to answer.

2007-08-30 07:54:48 · 4 answers · asked by Anonymous in Biology

What does it mean?

2007-08-30 07:53:27 · 2 answers · asked by anthonypaullloyd 5 in Mathematics

please help

2007-08-30 07:50:44 · 3 answers · asked by Cammy 1 in Mathematics

2007-08-30 07:49:17 · 6 answers · asked by Anonymous in Mathematics

i've heard that this happens in neutron stars, but it seems to defy logic, can it really happen, and if so, how? also, if there is matter that is made almost entirely of neutrons, then can there be matter made of only protons, or only electrons?

2007-08-30 07:48:54 · 6 answers · asked by Loki 1 in Astronomy & Space

2007-08-30 07:48:42 · 3 answers · asked by Anonymous in Mathematics

I was wanting to order it on the website but it hasn't come out yet.

http://www.bagatrix.com/geometry.htm

2007-08-30 07:47:51 · 2 answers · asked by Kirkylee 3 in Other - Science

Here is the question:

If the angle of elevation of the sun is 63.4 degrees when a building casts a shadow of 37.5 feet, what is the height of the building?



the person who explains how to do the problem will get best answer

2007-08-30 07:45:36 · 4 answers · asked by L J 3 in Mathematics

Distinguish between a fundamental physical quantity and a standard unit; that is, explain both and tell the differences between them.

2007-08-30 07:43:39 · 1 answers · asked by Anonymous in Earth Sciences & Geology

2007-08-30 07:41:11 · 11 answers · asked by Anonymous in Astronomy & Space

perform and implify if possible...is the answer xy3?

2007-08-30 07:40:48 · 5 answers · asked by lang1323 2 in Mathematics

i need ebooks concerning petroleum refining, sugar refining, design project for Chem Engg

2007-08-30 07:40:30 · 1 answers · asked by Stef 3 in Engineering

1. Factor completely:
x^2 + 12x + 36

2. Subtract: Express your answer in simplest form:
(2x) over (x - 5) - (10) over (x - 5)

3. Divide:
(x^2 - 25y^2) over (5x^2 + 25y) divided by (x^2 - 5xy)

2007-08-30 07:40:20 · 3 answers · asked by casper5 3 in Mathematics

Couldn't they build one that would take off like a regular jet airliner?

It could top-off its fuel tanks in flight from a tanker plane. And if necessary burn off its auxillary boosters to get up into sub-orbit.

Leaving the atmoshere laterally means any ice debris would simply fall off and away from the craft thanks to gravity.

Sure it would mean a slightly different approach to the problem. But still it seems like a viable solution to having a reuseable space shuttle.

2007-08-30 07:40:16 · 12 answers · asked by somber_pieces 6 in Astronomy & Space

2007-08-30 07:40:05 · 15 answers · asked by Anonymous in Botany

there is alos a number line i have to fill out after

2007-08-30 07:38:56 · 7 answers · asked by Anonymous in Geography

an existing 33 kv over head line, 100 km in length, with ACSR (DOG) wire insttaled, i need to add new loads for new consumers, what is the current carying capacity and the in amps and the max load in kva i can use in this case ?

2007-08-30 07:38:42 · 2 answers · asked by ELECTRICAL-ENGINEER 1 in Engineering

2007-08-30 07:38:32 · 1 answers · asked by Anonymous in Earth Sciences & Geology

If there is a creation there has to be a creator. So how can this world by chance?

2007-08-30 07:38:00 · 15 answers · asked by Anonymous in Astronomy & Space

After researching about Holograms, which led me to DNA, which led me to DNA experiments, I ran into an article I had to snope in regards to an alleged experiment that took place by a Russian Scientist i.e. Vladimir Poponin which goes as follows:

The first reported experiment was done by Dr. Vladimir Poponin, a quantum biologist Dr. Vladimir Poponin, with a Ph.D. in physics and another in mathematics from the Russian Academy of Science.

First a container was emptied, therefore creating a vacuum within it. Then, the only thing left were photons (particles of light); he measured the distribution or location of those photons and found they were completely random inside the container. This, of course, was the expected result.

But surprisingly enough, then some DNA was placed inside the container, and the distribution (location) of the photons was remeasured again, but this time the photons were lined up in an ordered fashion, aligned with the DNA.

Is this BS?

2007-08-30 07:36:51 · 4 answers · asked by james 2 in Physics

when the digits of a two digit number are reversed, the new number is 9 more than the orginal number and the sum of the digits of the ofingnal number is 11. what is the orginal number?

2007-08-30 07:32:52 · 4 answers · asked by pinkparadiseforever 2 in Physics

The body has stripes on it, but this insect is rather wan looking.

2007-08-30 07:31:27 · 6 answers · asked by Thomas B 2 in Biology

2007-08-30 07:30:58 · 2 answers · asked by pinkparadiseforever 2 in Physics

Let X be a topological space and let x_n be a sequence in X that converges to some x. Show that the set {x, x1, x2,...x_n,....} is compact. The problem is it's not assumed X is a metric space.
Thank you

2007-08-30 07:28:12 · 2 answers · asked by Sonia 1 in Mathematics