Science & Mathematics - 12 October 2007

The relationship, PV = nRT, for constant temperature, would indicate a linear relationship during compression. However, my foreign professor is unable to explain to me why he is teaching me that the line is not linear in a P-V diagram.

2007-10-12 04:27:52 · 4 answers · asked by Alex W 1 in Engineering

I am a computer scientist with an "application area" of biology. Strange I know, my point is I have at least a basic understanding of biological principles, and a more detailed understanding of a few specific areas (microbiology, biochemistry, genetics, etc). Enough background info: I recently have found myself wanting to know basics about various medical issues (both diagnostics and treatment). I'm looking for a book that can give me a basic overview of a wide range of "medical problems", as well as a bit of slightly more technical information. A book that might answer,

What is the cause of allergies (physiology)?
What happens when a person has an allergic reaction?
What common parasitic worms are there, what are their symptoms, what are their treatments?
Different types of cancer, their treatments, and how they work exactly?

I find myself looking at the body more as a complicated machine, I'd love to know more about how it works in relationship to problems.

Thanks!

2007-10-12 04:26:41 · 1 answers · asked by Kevin M 2 in Medicine

2007-10-12 04:22:46 · 4 answers · asked by returnee 1 in Mathematics

2007-10-12 04:21:05 · 4 answers · asked by gymnaststar118 1 in Biology

given the polynomial function of P(x)=3x^3+2x^2-4

2007-10-12 04:13:06 · 3 answers · asked by aprille cute 1 in Mathematics

A=bh
A=(3 1/2)(2 3/4)

soooo i know i'm to x them after i do something to get a whole number... how?

2007-10-12 04:11:06 · 5 answers · asked by Anonymous in Mathematics

I need to know what the point is that is 5.44 away from point (7,3). Possibly one could use the distance formula. I would like to know how you got it also.

2007-10-12 04:08:56 · 5 answers · asked by rossmt66 2 in Mathematics

How much she travel on Saturday?on Sunday?

2007-10-12 04:07:14 · 4 answers · asked by faith 1 in Geography

find the zeros of this polynomial function

2007-10-12 04:06:52 · 2 answers · asked by aprille cute 1 in Mathematics

2007-10-12 04:04:27 · 4 answers · asked by Noddy 1 in Zoology

it's been ten million years since i've done this sort of thing.

it's for a program to determine the number of intersections (points) in an even hex grid with a radius of x.

(for example: a grid of 7 hexes, x = 1.
for a grid of 91 hexes, x=5.)

thanks in advance!

2007-10-12 04:00:22 · 4 answers · asked by t.reed 1 in Mathematics

2007-10-12 04:00:20 · 9 answers · asked by Anonymous in Biology

2007-10-12 03:58:56 · 7 answers · asked by hemant 1 in Earth Sciences & Geology

2007-10-12 03:55:03 · 2 answers · asked by GoVols87 1 in Chemistry

What is the historical fact behind GMT? I mean, why do we put the clocks forward in spring, and back in the autumn/winter? When did this actually start happening?

Oh, and when do we put the clocks back this year?

Thanks to one and all!!

2007-10-12 03:53:02 · 9 answers · asked by PrettyKitty 5 in Other - Science

2007-10-12 03:50:35 · 3 answers · asked by moon 1 in Biology

2007-10-12 03:50:01 · 2 answers · asked by hey 1 in Engineering

i'm not a brown thumb, i grow plants fairly well, but petunias are new to me. i have the kind in a hanging basket, and they are dying from the root up. they are brown and dead halfway up ,it's still blooming and green at the ends. what is going on? it its fall here, getting colder, and i have brought it inside now. any suggestions????

2007-10-12 03:48:20 · 2 answers · asked by zoe and skylar's mommy 4 in Botany

science fair

2007-10-12 03:43:28 · 9 answers · asked by runescape player 2 in Engineering

curing during the night. If ghost are real then why do they pick the night time to bother people? Also, I have heard people say they have seen ghosts in their mirrors. How is this possible when they have no reflection?

2007-10-12 03:43:01 · 16 answers · asked by scottrainw 3 in Paranormal Phenomena

certainly it can't be compressed as air resistance will be too much or am i wrong! please help me sir i reallly am in the need of help

2007-10-12 03:41:45 · 6 answers · asked by hey 1 in Engineering

any answers help

2007-10-12 03:38:03 · 6 answers · asked by Patty 1 in Astronomy & Space

I heard one about the troposphere not heating up, but the surface is, disproving his main core argument that co2 causes global warming.
Any more? and why does nobody in journalism dispute his statements and he walks away with a Nobel prize?

2007-10-12 03:35:23 · 18 answers · asked by Anonymous in Other - Science

2007-10-12 03:33:52 · 7 answers · asked by Anonymous in Astronomy & Space

the temperature could be -200 degree celsius!

2007-10-12 03:32:44 · 4 answers · asked by Anonymous in Astronomy & Space

2007-10-12 03:32:32 · 6 answers · asked by Hermione 2 in Physics

2007-10-12 03:32:07 · 19 answers · asked by ANNASTACIA 1 in Mathematics

2007-10-12 03:31:24 · 9 answers · asked by luke 1 in Astronomy & Space

A sky diver of mass 80.0 kg (including parachute) jumps off a plane and begins her descent.
Throughout this problem use 9.80 m/s^2 for the magnitude of the acceleration due to gravity.

For an object falling through air at a high speed , the drag force acting on it due to air resistance can be expressed as

F = Kv^2

where the coefficient K depends on the shape and size of the falling object and on the density of air. For a human body, the numerical value for K is about 0.250 kg/m.

Using this value for K, what is the terminal speed v-terminal of the sky diver?
Express you answer in meters per second.

B) When the parachute is fully open, the effective drag coefficient of the sky diver plus parachute increases to 60.0 kg/m. What is the drag force F(drag) acting on the sky diver immediately after she has opened the parachute?

C) What is the terminal speed v(terminal) of the sky diver when the parachute is opened?
Express your answer in meters per second.

2007-10-12 03:29:44 · 1 answers · asked by Nick S 1 in Physics

Show that Aut (Z,+) has only two elements.

So I've figured out what the two elements are, f(x) = x and g(x) = -x. But I can't figure out how to prove that there are no other elements.

2007-10-12 03:27:23 · 2 answers · asked by Robert 3 in Mathematics