Science & Mathematics - 21 September 2007

A meteorite that actually made it to ground leaving a huge impact crater near a peruvian village is causing a mystery illness. A boiling substance was reported oozing out of the rock. This scared the crap out of me cause this could be the first case of some kind of illness caused by space microbes or virus. To me, the media, NASA, and the CDC hasnt really reacted to this or given any updates to the conditions in the village.
I figured the idea of a alien microbe or viral bug with no terrestrial cure, could spread by any kind of contact, in this case by air if it is affecting a whole village, would be on peoples mind more than any ofther news story.

2007-09-21 06:46:43 · 15 answers · asked by greg_lang2006 1 in Astronomy & Space

2007-09-21 06:46:06 · 2 answers · asked by ade o 1 in Engineering

As in 'waning or waxing gibbous' - a phase of the moon.
Is it like gibbon and giddy
or
gibbet and giblets?

Thank you...

2007-09-21 06:42:23 · 5 answers · asked by Autumn Breeze 5 in Astronomy & Space

2007-09-21 06:40:05 · 4 answers · asked by dinesh k 1 in Engineering

I know that whatever % I have i just move the decimal and times it so like 10 % of 20
so
.10*20=2
But how do you do that in your head....i cant multiply decimals in my head very fast...is their an easy way to look at percents?

2007-09-21 06:32:32 · 7 answers · asked by Anonymous in Mathematics

2007-09-21 06:25:44 · 5 answers · asked by Smith 1 in Mathematics

i m in my final year mechanical engineering, i need to submit a project related to my studies like a six stroke engine or a joysitck operated wheel chair... can neone pls give me some innovative ideas for a different project wic are feseable....

2007-09-21 06:22:56 · 6 answers · asked by nik 2 in Engineering

I need help with this problem. A rock is thrown straight up with an initial velocity of 48 feet per second from an initial height of 64 feet above the ground. Its height h at time t is given be the formula h(t)=-16t^2+48t+64

1. find the time when the rock hits the ground.
I got this one 4 seconds, right?

2. find the maximum height of the rock?
this is the tough one? what should i do to solve it?

2007-09-21 06:15:39 · 4 answers · asked by mikhailb89 1 in Mathematics

do you? One degree rise in air temprature doesn't really provide all that heat necessary to melt solid ice, right?

2007-09-21 06:13:42 · 6 answers · asked by Anonymous in Earth Sciences & Geology

The suits were only an inch or so thick and scientists reckon you would need a suit 6 feet deep of lead to stop the radiation or you would be killed, yet the astronauts are still fine today. And this was all achieved in the sixties but we have never gone back nor are there any plans to. Surely this is just another government lie?

2007-09-21 06:13:42 · 18 answers · asked by Anonymous in Astronomy & Space

there is no friction in outer space.....so even a small accelaration will increase the velocity...even if it is a little bit....it will still increase....so why cant we increase the velocity indefinitely???

2007-09-21 06:12:22 · 8 answers · asked by Shrikant M 1 in Astronomy & Space

If a common ancestor is supposed to become a man by mutation,

but every single mutation so far witnessed leads to retardation, e.g. try fruit flies

then um, how did all the extra information to code for opposable thumbs and enlarged brains enter the gene pool?

One good way of inserting information into gene pools is by having sex and creating offspring with new and recombined dna

but since there were no humans around to introduce human genes, how could this of taken place

can someone please name one, just one, observed mutation, that has led to an increase in genetic information

this is necessary otherwise the process has no new information to work with,

Fruitfleies have undergone hundreds of thousands of mutations,

they have doubled wings, grown extra legs, but no new material other than what they already possess has been witnessed

um anyone got an answer for me.....guys

2007-09-21 06:11:17 · 6 answers · asked by Anonymous in Biology

2007-09-21 06:09:10 · 7 answers · asked by universatile love 3 in Astronomy & Space

Ca(NO3)2(aq) + H2SO4(aq) ® CaSO4(s) + 2HNO3(aq)

2007-09-21 06:08:56 · 4 answers · asked by PiNk-PrInCeSs 3 in Chemistry

In '79 I was watching a TV show on UFOs. I am sceptical about stuff like this. Near the end of this program they ran a short (maybe 40 sec.) black and white movie.

It was taken at the Groom Lake base ... area 51. The footage shows a plane (like a B-52) taxing down the runway towards a hanger or something. The camera followed the plane. As the plane taxied behind a rock outcrop, the camera continued to pan to the right, to a scene (I would say less 50' away) of a jeep parked on the tarmac with military guys standing near. None had side arms!

An ET was walking across the tarmac towards them and 2 or 3 other ETs stood further back beside 2 parked saucers. The Et stopped when it reached the jeep and stood face to face with military. Footage ended shortly after. I have never seen it again ...and believe me I have looked over the years!

I also recently hear a radio interview and a film director spoken of this exact footage and said it has never aired publicly ...someone is lying!

2007-09-21 06:07:22 · 2 answers · asked by WARREN 3 in Astronomy & Space

Based on the solubility rules, which one of the following compounds should be insoluble in water?
Na2SO4
BaSO4
CuSO4
MgSO4
Rb2SO4

2007-09-21 06:07:12 · 1 answers · asked by PiNk-PrInCeSs 3 in Chemistry

If the moon is phase locked to the Earth, then shouldn't the far side of the moon be more pummeled by meteors than the near side facing Earth? Wouldn't the Earth block most direct hits?

2007-09-21 06:04:03 · 10 answers · asked by seweccentric 5 in Astronomy & Space

How would I go about integrating this function:

sqrt(2/a) integral (0-->a) [sin (n*pi*x / (a))] / (sqrt (x)) dx

This is Integral of sin (n*pi*x/a) / sqrt(x)

It's kind of hard to explain? Sorry. I hope someone can help.

Love,
Mary

2007-09-21 06:04:03 · 7 answers · asked by ♥ Mary ♥ 3 in Mathematics

All substances are in the gaseous state and, ΔH = –92 kJ.
Predict whether the reactants (left side) or the products (right side) will be favored by the following changes.
i. increased pressure.
ii. increased temperature.
iii. addition of hydrogen .
iv. removal of the product, CH3OH .

2007-09-21 06:00:59 · 3 answers · asked by virgo 1 in Chemistry

is this because it is closer to Earth than the other, or is it because one is hotter than the other.

And how far is the average star from Earth?

2007-09-21 06:00:13 · 7 answers · asked by winterpixie_13 4 in Astronomy & Space

I am trying to make a microhydro electric power device.
Could a guy use the motor from a power tool as a generator??? Any Suggestions?? - It is a class project and I am the teacher.

2007-09-21 05:52:01 · 7 answers · asked by Donald M 1 in Engineering

how to build a circuit for ac input voltmeter?
Is Digital Voltmeter for this website:
www.electronics-lab.com/projects/test/014

2007-09-21 05:43:55 · 4 answers · asked by lwy 1 in Engineering

I'm having a brain fart. I should REALLY remember how to do this, but I don't:

wz(sqrt 12w) + 2wz(sqrt 3w)

Thank you!

2007-09-21 05:43:00 · 8 answers · asked by chrizzle08 2 in Mathematics

does a male chicken have testicles? i'm helping a relative find the answer to this.

2007-09-21 05:39:10 · 28 answers · asked by olivia o 2 in Zoology

2007-09-21 05:36:13 · 11 answers · asked by nala 1 in Mathematics

i would appreciate if you give your source of reference as well!

2007-09-21 05:32:49 · 5 answers · asked by king 1 in Zoology

In other words how would the world would b lyk if there wasn't an invention of cars..

2007-09-21 05:30:53 · 4 answers · asked by saleha v 1 in Engineering

Do I have correct answers for these?

1.252 x .115 x .012 = .0017

(1.278 x 10 to the third) / (1.4267 x 10 to the second) = 8.958

505-450.25 = 54.3

Please help. I am so confused.

2007-09-21 05:29:57 · 6 answers · asked by patriciaannbee 2 in Mathematics

2007-09-21 05:28:12 · 9 answers · asked by pedro i 1 in Mathematics

Snowballs are thrown with a speed of 13 m/s from a roof 7 m above the ground. Snowball A is thrown straight downward; snowball B is thrown in a direction 25 degrees above the horizontal. (A) Is the landing speed of snowball A greater than, less than, or the same as the landing speed of snowball B? Explain. (B) Verify your answer to part a by calculating the landing of both snowballs.

2007-09-21 05:27:59 · 5 answers · asked by mmeee 1 in Physics