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Science & Mathematics - 12 November 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

if they arnt real, then im insane.


er..yea..this was last night http://answers.yahoo.com/question/index;_ylt=As3SNgUCyhUK5nFqd6vFzDvsy6IX;_ylv=3?qid=20071111165940AAlU9vi

im worried im nuts

2007-11-12 05:54:59 · 20 answers · asked by Crazygirl ♥ aka GT 6 in Paranormal Phenomena

2007-11-12 05:50:52 · 11 answers · asked by Anonymous in Mathematics

What is the density of nitrogen gas (molecular mass = 28 u) at a pressure of 2.3 atmospheres and a temperature of 282 K?

Ok so first I converted the molecular mass to moles, which would be 2, and then I used the equation pv=nrt to get the volume, and then divided the volume by the mass, and got an answer of 1.4 but that is wrong. Any idea of what I'm doing wrong?

I'd appreciate any help.

Thanks.

2007-11-12 05:43:26 · 2 answers · asked by Anonymous in Physics

I have a TI-89, and i need help on graphing. i need to be able to graph the following: y=sinθ for (-13/2) ≤ x ≤ -(8π/3)
y=cosθ for (-9π/4) ≤ x ≤ (π/4)

I forgot how to graph these, and i am trying to review for a test. thanks!

2007-11-12 05:43:09 · 3 answers · asked by missyjc12 2 in Mathematics

How does MRSA function?
How is it like eukaryotic cells? How does it differ?
How does it cause illness?

2007-11-12 05:42:01 · 3 answers · asked by Anonymous in Biology

how do i solve for t in this equation.

0 = -4.9t^2 + 24.5t + 68.6

2007-11-12 05:40:31 · 8 answers · asked by Anonymous in Mathematics

fleas, ants, mosqitoes, and spiders?

2007-11-12 05:38:30 · 6 answers · asked by DJ 6 in Biology

http://i4.tinypic.com/6ut59xe.gif

Mechanical works done by the mechanic were respectively
A1 = +300J
A2 = +200J

What is spring constant K of the spring?

2007-11-12 05:37:49 · 2 answers · asked by Alexander 6 in Physics

Name the part of the cell or organelle responsible for each of the following:
a) digesting a bacteria the cell ingested
b) production of insulin
c) adding a glucose molecule to a protein for export
d) storage of starch in a potato
e) synthesize glucose molecules
f) hydrolysis of disaccharides
g) synthesis of steroid hormones
h) synthesis of ribosomes

Thank you so so so much! Just a short answer to each of these, or whatever ones you know would be awesome!

2007-11-12 05:37:26 · 1 answers · asked by Anonymous in Biology

I just wonder why only the pine tree dont change there color?They also have green leaves.....

2007-11-12 05:35:57 · 3 answers · asked by mkhkiss 1 in Botany

2007-11-12 05:34:19 · 6 answers · asked by Param Pujya Sri Sri PRABHUJI 2 in Botany

The cab starts moving with an accelartion of 1 m/s^2 and is 20 meters down the street from you. You have 50 meters to catch the cab and are able to run with a max. speed of 8 m/s. Will you catch the cab given these circumstances?

Best Answer to first correct answer!!

2007-11-12 05:32:01 · 1 answers · asked by Anonymous in Physics

2007-11-12 05:31:35 · 7 answers · asked by Anonymous in Physics

Can a scientist question Darwinism, even if the basis for his questions has nothing do with religion? Is it automatically assumed that doing so is due to religious reasons? What if the scientists is not questioning it on the basis of creationism, but because he or she thinks that some aspects of Darwinism is flawed? How would such a scientist be regarded in the scientific community?

2007-11-12 05:30:30 · 6 answers · asked by Anonymous in Other - Science

We know that frequency is the energy pulses of an emitter, which is pretty much every conceivable thing since everything in its deepest level is made of atoms and atoms are made of electrons and protons and neutrons - all of which are particles
made up of energy, electricity that is; and they vibrate and do
have a frequency therefore.
So in this order of thought, it turns out that frequency is a universal property of energy? and that every particle can be defined by its frequency (and the Universe and everything we know is an elegant symphony of vibration.:-)

2007-11-12 05:29:11 · 2 answers · asked by Ateviel 3 in Physics

The Nerve Cells in your body must constantly remove substances from the cell against the concentration gradient. What type of process most likely takes place to remove substances from a cell against the concentration gradient?

2007-11-12 05:26:41 · 3 answers · asked by not basic 5 in Biology

This is a model of a 'Swing Carousel' ride at a funfair. I have made for a physics project and I'm having awful trouble .. Thank you!

2007-11-12 05:26:18 · 1 answers · asked by charly.lizzy 2 in Physics

In contrast to the envelope of the nucleus, the double membrane of a mitochondrion:

a. is not studded with pores

b. is freely permeable

c. creates 2 compartments

d. separates DNA from cytoplasm

e. has 2 lipid bilayers


I think that it is a.

2007-11-12 05:20:02 · 1 answers · asked by LJC 2 in Biology

please be quick before thursday please

2007-11-12 05:16:15 · 7 answers · asked by ruk 1 in Zoology

Assuming that curvature of ship path is proportional to angle of her rudder,

at what angle must the rudder be turned to follow the path strictly along the line of 45° latitude?

2007-11-12 05:15:01 · 2 answers · asked by Alexander 6 in Mathematics

I don't get it. I mean I understand how the X i or j physically works (it's just factoring it basically), but WHY do it in the first place? To confuse me? To make me write more? WHY?!!? OH WHY!!?!?!?

Thnx, I'll pick a best answer TODAY, you silly willies.

2007-11-12 05:12:52 · 2 answers · asked by James J 2 in Mathematics

Near the earth's surface every particle experiences a constant acceleration of 32 ft/sec^2 directed toward the center of the earth; if "up" is considered the positive direction, then this is an acceleration of -32ft/sec^2. Consider a rock thrown straight up in the air from the ground. Let's denote time t=0 as the time when the rock reaches 12 feet up in the air at (upward) velocity of 4 feet per second. Fill in the following with numbers that differ from the correct value by no more than .1 units.

The rock left the ground (was thrown up in the air) at time t = ANSWER seconds, with initial velocity of ANSWER feet per second. It will fall back to the ground at time t = ANSWER second after reaching the maximum height of ANSWER feet at time t = ANSWER seconds.

2007-11-12 05:08:21 · 3 answers · asked by james c 1 in Mathematics

I need help finding out what thermal energy is and I needs some examples of it.

2007-11-12 05:07:52 · 3 answers · asked by Sir Wolfex 1 in Physics

What is the range for grades in order get an A? a B? a C?

2007-11-12 05:06:37 · 8 answers · asked by α ρℓα¢є ¢αℓℓє∂ мєℓαи¢нσℓу . 6 in Mathematics

I have been studying the theory of evolution for a few weeks now, and I am wondering what the legitimate proof against evolution actually is.

I understand that irreducible complexity is a big one (especially regarding flagellum), but i saw a video of a speech that Ken Miller, a prominent biologist, made where he disproved the irreducible complexity of the bacteria flagellum.

I also have heard arguements as to there being no intermediate species found in the fossil record. But after some research it seems that this is a false claim. ID proponents will never admit that a fossil is an intermediate species and will just say that it is just another creature that was designed.

So what else are proponents of ID considering flaws in evolution?

I have heard that it is impossible for new information to be created in the DNA. If this is true, it would seem to me to disprove evolution.

2007-11-12 05:06:11 · 8 answers · asked by Gardner S 2 in Biology

2007-11-12 05:05:35 · 14 answers · asked by dontharshmymel 1 in Weather

2007-11-12 05:03:44 · 2 answers · asked by Anonymous in Botany

Calculate the resonance frequency of a free electron in a magnetic field of 1 T. What is the associated wavelength?

2007-11-12 05:01:36 · 4 answers · asked by mark r 4 in Physics

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