Science & Mathematics - 20 October 2007

for October 18, 19, 20, 21, and 22

please help
=]
10 points to best answer

2007-10-20 21:01:51 · 9 answers · asked by . : : stephanie : : . 4 in Weather

When I decide to move my finger, how does this decision (which is a "thought") get translated into the physical "action" of moving the finger? If you believe the thought itself is actually a physical entity (which thus "gets the physiological ball rolling"), then explain how the process of creating this physical thought works. In other words, how can my mere (non-physical) "will" set in motion a physical process?

2007-10-20 20:59:58 · 5 answers · asked by Bewildered 2 in Biology

Find the vector xi+yj+zk which has a magnitude ot 6cm and makes an angle of 35deg and 80deg with the positive x and y axes respectively.
I don't know how to do it. Mostly cause I don't know which angles it means.

2007-10-20 20:56:05 · 4 answers · asked by j_s_j_c_c 2 in Mathematics

2007-10-20 20:52:48 · 5 answers · asked by student 1 in Physics

2007-10-20 20:45:51 · 5 answers · asked by skully 1 in Zoology

Im halfway through to get my BS in Mechanical Engineering. My main focus would be The Automotive industry. But I seriously don't know what's out there waiting for me, is there anyone in here who is a mechanical engineering that can give me some aid to visualize the real deal. I have started to question whether i still want to be an engineer, I just keep losing my motivation :(

is there any hope for me: i have a 2.8 GPA and soon will be attending a Cal State University... is there still a bright future waiting for me? or not quite?...

seriuous answers will be greatly appreciated :)

2007-10-20 20:41:29 · 2 answers · asked by driftaddict87 4 in Engineering

1st. did we discover the internet, or create the internet?
2nd. if we discovered the internet, is it possible, no probable, that aliens too have the internet?
3rd. if the internet is the same everywhere in the universe, and humans and aliens both access it, is it possible for them to interact with one another through it?

2007-10-20 20:30:42 · 6 answers · asked by gr8lyendowed 3 in Astronomy & Space

The standard unit for mass is kilo
The standard unit for weight is Newton or kg.m/s2
Mass is not affected by the change of location of the object while weight is being affected due to change in gravitational pull.

2007-10-20 20:29:49 · 2 answers · asked by janace25 1 in Physics

A boat of mass 250 kg is coasting, with its engine in neutral, through the water at speed 3.00 m/s when it starts to rain. The rain is falling vertically, and it accumulates in the boat at the rate of 10.0 kg/hr.

The drag is proportional to the square of the speed of the boat, in the form F_d= 0.5 v^2. What is the acceleration of the boat just after the rain starts? Take the positive x axis along the direction of motion.
Express your answer in meters per second per second.

2007-10-20 20:28:13 · 1 answers · asked by Komodork 3 in Physics

i bet nobody ever thought about the zero, yes the zero was invented, and befor when they had no zero the numbers were crazy, the numbers were limited, or you need a wall to write 1million,
i will answer after i resieve some other people answers.
thx

2007-10-20 20:22:42 · 6 answers · asked by zakk 3 in Mathematics

I had a very frightening experience the other night as I was about to drift off to sleep. I believe I encountered some sort of ghost or spirit in my room that attempted to make physical contact (more detail later). While I understand that it may have been a dream, I feel strongly otherwise.

I did a bit of research on spirits and also dreams of this sort but came up with nothing conclusive. I'd really like to be able to find out who/what it actually was and if I have anything to worry about. I've heard that spirits can't harm you, but the whole experience has really disturbed and upset me and I'd like to be able to find out just for my own peace of mind.

2007-10-20 20:19:07 · 20 answers · asked by Anonymous in Paranormal Phenomena

Wouldn"t a male have to be YY (which of course is not possible) to be 100% male?

I know that female is the default sex, and that for the first few weeks in the womb all are female to start with. Basically are all males bisexual because all are part female anyway?

2007-10-20 20:18:13 · 3 answers · asked by Nathan 4 in Biology

Also, how would you determine the interval of convergence?

f(x)=x/(4x+1)

much thanks!

2007-10-20 20:16:52 · 3 answers · asked by Trung T 1 in Mathematics

2007-10-20 20:16:04 · 4 answers · asked by Anonymous in Medicine

2007-10-20 20:03:03 · 6 answers · asked by smiley 1 in Mathematics

2007-10-20 20:00:18 · 8 answers · asked by Anonymous in Astronomy & Space

if you dont know that one,
how about either one of these:

* 2-propanol + glacial acetic acid + conc. sulfuric acid
* 1-pentanol + (same) + (same)

also,
what is the fuction of the sulfuric acid in these reactions?

By the way, this is Grade 12 Chem!
I hate chemistry........

2007-10-20 20:00:10 · 3 answers · asked by liilee89 1 in Chemistry

2007-10-20 19:58:50 · 5 answers · asked by mofactor 2 in Astronomy & Space

need help here ppl.

2007-10-20 19:58:02 · 2 answers · asked by Anonymous in Astronomy & Space

2007-10-20 19:52:20 · 6 answers · asked by Anonymous in Biology

Louise is riding in a roller coaster. Louise experiences a downward acceleration of 25.0 m/s2 at the top of the loop and an upward acceleration of 30.0 m/s2 at the bottom of the loop. Use Newton’s second law to determine the normal force acting upon Louise’s 1000 kg roller coaster car

2007-10-20 19:51:13 · 1 answers · asked by help 2 in Physics

2007-10-20 19:48:25 · 9 answers · asked by smiley 1 in Mathematics

Calculate the longest wavelength (in m) of the electromagnetic radiation emitted by the hydrogen atom in undergoing a transition from the n = 6 level.

2007-10-20 19:44:39 · 1 answers · asked by Joe C. 1 in Chemistry

Protel,P-CAD

2007-10-20 19:42:08 · 6 answers · asked by askcircuits 1 in Engineering

Please show the steps using the y-intercept, unless there is an easier way

2007-10-20 19:39:20 · 3 answers · asked by Sherri E 1 in Mathematics

2) h=2/3 cos 6t-5t
3) y=3-2 tan 4u
4) z=0.4 - 1/2cos 8θ

2007-10-20 19:36:35 · 1 answers · asked by charlie green aniston 1 in Mathematics

2007-10-20 19:35:00 · 5 answers · asked by smiles4u 3 in Mathematics

Find the first partial derivatives for the following function, where they exist

s(x,y) = arctan(y/x)

thanks, any help much appreciated

2007-10-20 19:32:56 · 3 answers · asked by okooko 3 in Mathematics

2007-10-20 19:26:34 · 23 answers · asked by Karanhawk 1 in Paranormal Phenomena

Show that the function f(x) equal to summation (0- infiniti) {[(-1)^n]x^(2n)}/(2n)!
is the solution of the differential equation f ''(x)+ f(x)=0.

help is greatly appreciated! thanks!

2007-10-20 19:25:19 · 2 answers · asked by nerdoman@sbcglobal.net 1 in Mathematics