Science & Mathematics - 21 January 2007

Please help me with the following problem.
Solve for Q2:

a-2b[a-2b(Q2)-c]-(Q2)-c

Q2= ?

2007-01-21 09:49:22 · 1 answers · asked by DaveW 2 in Mathematics

OK, so I've just left high school having scored mostly Cs in my Higher exams (or "final exams" if you're a yank") and now ,NOW I decide I want to become a doctor. I didn't score that low on my exams because I'm stupid, I was just lazy, but now I've figured out what I want to do I'm willing to do almost anything to achieve it, can I retake the exams somehow?, or do medical schools need you to have five As in one sitting?

2007-01-21 09:48:33 · 4 answers · asked by Claudia P 1 in Medicine

2007-01-21 09:47:52 · 1 answers · asked by cheli 2 in Mathematics

I was reading this physics book and it was talking about how if an object in motion does not encounter fiction, it will keep on moving foever, theorectically.

So I need to ask, does space have friction? Will an object that is moving in space travel forever through it? And do the gravity fields emitted by the planets act as friction to slow the object down?

Thanks Guys/Gals!

2007-01-21 09:47:30 · 9 answers · asked by wraithrune 2 in Astronomy & Space

My question is dealing whith science, like Chromosomes and human cells.

2007-01-21 09:47:08 · 5 answers · asked by Destiny P 1 in Biology

its the stuff that makes up that atmosphere, its three oxygen particles together

2007-01-21 09:46:12 · 7 answers · asked by Anonymous in Earth Sciences & Geology

Hi,

I have four factors for fourteen variables. I want to develop a regression expression for a dependent variable using the correlated variables.

The problem for me is to interpret the factor score or loading to develop the Multiple Regression.

Please Help

Regards

2007-01-21 09:45:51 · 1 answers · asked by venkat k 1 in Mathematics

How is it made? If there was no wind would there still be waves? Is wind to do with the moon?

2007-01-21 09:44:19 · 13 answers · asked by ms_jaffa_cake 2 in Earth Sciences & Geology

Ok i got an assignment and I can't get these 3 questions. If anyone could answer and of them that'd b great.

1. du/dt = e^(-4t + 3u), u(0) = 8
Solve for u = ?

2.dy/dx – 6tan(3x)y + 5cos(4x) = 0 y(0) = 1
The solution y(x) = ?

3. x*dy/dx – 7y= x^20 y(1) = 7
y = ?

Thanks in advance.

2007-01-21 09:43:15 · 3 answers · asked by Anonymous in Mathematics

Trying to ascertain proper placement of a console/evaporative humidifier in my home. Top floor or bottom floor .... not sure where it would be best suited. Thanks !!!

2007-01-21 09:42:58 · 5 answers · asked by Anonymous in Weather

rad =radical i need the seps i have the answers!!

2007-01-21 09:42:51 · 1 answers · asked by Anonymous in Mathematics

All you anatomy and physiology brainiacs out there! (no pun intended.) Anyone know how to easily find the central sulcus on the human brain and possibly the sheep's brain? I know where it is on the diagrams but its a b*itch trying to find it on the real thing. HELP?!

2007-01-21 09:42:27 · 3 answers · asked by ** i Am hiS giRL ** 5 in Biology

most of the nerves in the peripheral nervous system?

2007-01-21 09:42:22 · 5 answers · asked by soccer_freak102004 1 in Botany

Why does the Foucault Pendulum at Griffith's Observatory in Los Angeles have a cycle time of 42 hours? The docents there can only blabber an attempted explanation, leaving everybody as confused as ever. Person with most convincing explanation for the figure of 42 hours without resorting to a wiki article wins 10 points, because the docents don't go around handing out wiki articles. What should the docents say?

2007-01-21 09:41:28 · 6 answers · asked by Scythian1950 7 in Earth Sciences & Geology

Okey - I need to calculate the equilibrium constant for a reaction with the following data: dH0 = -908kJ, dS0 = 181J/K, dG0 = -961.9kJ. Any takers? dG0 is at 298K and changes to 1098K. Assume dH and dS are constant over the temp difference. Query 2: Given: H2O(g) + Cl2O(g) 2 HOCl(g) K298 = 0.090, dH0 = 0, dS0 = -20, and J/K dG0 = 5.97 kJ/mol. For Cl2O(g): dG°f = 97.9 kJ/mol dH°f = 80.3 kJ/mol S° = 266.1 J/Kmol. Find the enthalpy of formation for HOCl. Please explain how you do both/either of these! Thanks in advance!

2007-01-21 09:40:55 · 2 answers · asked by emsviper 2 in Chemistry

2007-01-21 09:40:47 · 9 answers · asked by Adam R 2 in Mathematics

Whats a global location of:

divergent plates,
convergent plates,
and transform plates.


also....

What is the mechanism that drives plate movement?

Thanks!

2007-01-21 09:40:24 · 2 answers · asked by loving life 2 in Earth Sciences & Geology

If a gas is compressed from 4L to 1L and the temp. remains constant what happens to the pressure?

2007-01-21 09:39:38 · 7 answers · asked by aaaaa 2 in Chemistry

2007-01-21 09:39:26 · 6 answers · asked by Anonymous in Geography

2007-01-21 09:36:36 · 7 answers · asked by cead 3 in Zoology

The basic idea is to use the body as the basis for hardware, and the skin-covered surface of your body as an interface. As technologists have discovered, interfaces take up space; why not use your most intimate space to connect.

Here are some details:

To achieve absolute personal identification, the hardware would capture DNA from the user’s body, enabling direct participation in the political and cultural landscape. The technology would link remote users through engagement with their areas of interest...
Users view, test-drive, and select their product from a variety of options, both functional and aesthetic. They also set the lifecycle of the product, to be utilized for a few hours or a much longer amount of time. Once users are satisfied with their specific configurations, they have this fully-functioning circuitry - including all UI-interactive and display functions - “printed” onto recommended areas of their skin. Energy would be pulled from the human body to run the programs. At the end of the day, users would simply wash the Dattoos off, beginning anew the following day.
Although this is a very far-fetched idea, the first steps have already been taken. IBM pioneered research in the area of using a living person's skin as a computer network in 1996 with a system that could successfully transmit data across skin at low speeds. Microsoft was granted a patent in 2004 for "a method and apparatus for transmitting power and data using the human body."

More recently, NTT has developed a technology called RedTacton, which can send data over the surface of human skin at speeds of up to 2Mbps -- the equivalent of a fast broadband data connection. The transmission is achieved by minutely modulating the electrical body field in the same way that a radio station wave is modulated to carry broadcast data.

2007-01-21 09:36:23 · 3 answers · asked by Jewel 3 in Biology

(x^6 y^-5) (x^-2 y^-2)^3
__________________
(xy^2)^-1

NOTE: thats all one question

I keep getting x^-1 /y^-9 but apparently the answer is x/y^9. Can anyone verify if x/y^9 is the correct answer?

2007-01-21 09:36:08 · 3 answers · asked by Dill 4 in Mathematics

The type of plastic suchlike some of the (UK) car tax disk holders are made of. Also does anybody know where in the UK I can buy A4 or similar sized sheets of the stuff?

2007-01-21 09:35:34 · 4 answers · asked by Anonymous in Engineering

2007-01-21 09:35:26 · 6 answers · asked by Hattie 1 in Earth Sciences & Geology

or what is the probability it will be tails?

2007-01-21 09:35:16 · 7 answers · asked by MochaAlmondgt 1 in Mathematics

I know the answer is yes i just dont know why....

2007-01-21 09:34:56 · 4 answers · asked by treesap7h 2 in Chemistry

Any visual guides?

2007-01-21 09:34:40 · 2 answers · asked by simpleplanfan<3 2 in Mathematics

i just want to know where my aptitude lies in what field of engineering...... tnx

2007-01-21 09:34:06 · 2 answers · asked by thirteen 1 in Engineering

I thought this might be a good question, since I had not ever seen it posted. I know many people beleive they have been abducted, and wanted to see if anyone here does and why. I like to learn about new things, and this is a topic I am studying right now.

2007-01-21 09:31:19 · 7 answers · asked by Jewel 3 in Astronomy & Space

What happens to a gas particles when a gas is compressed?

2007-01-21 09:30:15 · 8 answers · asked by aaaaa 2 in Chemistry