Science & Mathematics - 10 October 2007

2007-10-10 10:38:27 · 7 answers · asked by Allen C 3 in Mathematics

I cant find the answer in my text book for some reason... I will choose best answer.

2007-10-10 10:37:00 · 1 answers · asked by zachmebay 2 in Physics

At the beginning of a new school term, a
student moves a box of books by attaching a
rope to the box and pulling with a force of
F = 82.4 N at an angle of 63degrees.
The acceleration of gravity is 9.8 m/s/s.
The box of books has a mass of 14 kg and
the coefficient of kinetic friction between the
bottom of the box and the floor is 0.23.

What is the acceleration of the box? An-
swer in units of m/s/s.

2007-10-10 10:36:35 · 3 answers · asked by lilprincess_2good4u 1 in Physics

2007-10-10 10:36:03 · 7 answers · asked by Anonymous in Mathematics

2007-10-10 10:35:50 · 15 answers · asked by Jeff 2 in Astronomy & Space

Can anyone describe what 2-dimensional time would "look" like or "feel" like?
Are there any science fiction stories that you can reccommend that give a good visualization of 2 (or more) dimensions of time?
Some theories in physics, like string theory, use more than 3 dimensions of space. Are there any theories that use more than one dimension of time?

2007-10-10 10:34:00 · 1 answers · asked by Jeffrey K 7 in Physics

ok..heres the problem...

if chris earns 10$, then he will go to the game.
if chris goes to thegame, then he will bring jane.

question: wat is the valid conclusion from the statement above?


plz help!! thanxs!!

2007-10-10 10:33:48 · 12 answers · asked by luvbunni12394 2 in Mathematics

Academic friend of mine reckons there's a theory that arachnids disappear from the fossil record at some point and the best theory is that they arrived here in a meteor shower.Sounds ridiculous to me.

2007-10-10 10:33:02 · 6 answers · asked by Bobby H 1 in Zoology

2007-10-10 10:32:02 · 2 answers · asked by Kierra R 1 in Chemistry

conssider the system of equations
a + b = 2m^2
b+c=6m
a+c =2

Determine all real values of m for whcih a<=b<=c

2007-10-10 10:32:00 · 1 answers · asked by steve 1 in Mathematics

Consider the 671 N weight held by two cables. The left-hand cable had tension T2 and makes an angle of theta2 with the ceiling. The right-hand cable had tension 450 N and
makes an angle of 50degrees with the ceiling.
The right-hand cable makes an angle of 50degrees
with the ceiling and has a tension of 450 N:

a) What is the tension T2 in the left-hand
cable slanted at an angle of theta2 with respect to
the wall? Answer in units of N.

b) What is the angle theta2 which the left-hand
cable makes with respect to the ceiling? An-
swer in units of degrees.

2007-10-10 10:30:53 · 1 answers · asked by lilprincess_2good4u 1 in Physics

2007-10-10 10:27:58 · 2 answers · asked by Anonymous in Chemistry

2007-10-10 10:27:21 · 10 answers · asked by Anonymous in Mathematics

I just saw what looked disturbingly like one giant slug consuming a smaller one! Eeeeeee!
Is this right?

2007-10-10 10:25:45 · 3 answers · asked by Daisyhill 7 in Zoology

2007-10-10 10:25:41 · 5 answers · asked by JOHNNY J S 1 in Mathematics

2007-10-10 10:25:00 · 9 answers · asked by ? 3 in Astronomy & Space

A Man's Shelf Life
As men age, their fertility decreases and the health risks to their unborn offspring skyrocket.
http://psychologytoday.com/articles/pto-20070830-000004.xml
it's very feasible that paternal age is a major predictor of autism," asserts Harry Fisch, MD.

He is one of the nation's leaders in the diagnosis and treatment of male infertility and microsurgical vasectomy reversal. Dr. Fisch is director of the Male Reproductive Center and directs urologic microsurgery in the Department of Urology at Columbia University Medical Center of New York Presbyterian Hospital in New York City. He is also professor of clinical urology at Columbia University, where he was recently named Teacher of the Year in his department.

2007-10-10 10:19:02 · 6 answers · asked by Alex 2 in Biology

i will pick best answer to whoever explains to me what it means the best!

2007-10-10 10:18:40 · 6 answers · asked by onetreehunny 4 in Biology

The last question was confusing, so I am going to make this clear as possible. Which plant wouldn't mind being with more plants (of the same species). For example: 20 bean plants in one pot. I need to find out which kind of plant wouldn't die if it is crowded with plants of it's own species! I would really appreciate the help!!!!!

2007-10-10 10:18:23 · 3 answers · asked by Diana C 3 in Botany

solve: 18-3.8x=7.36-1.9x
i don't understand this at all!!!
show work!!

2007-10-10 10:18:19 · 10 answers · asked by Anonymous in Mathematics

what is frequency in math

2007-10-10 10:17:30 · 4 answers · asked by Mike C 1 in Mathematics

2007-10-10 10:15:19 · 2 answers · asked by Rachel 1 in Botany

I am doing an experiment on "Do all plants react the same when over-crowded" So what plants should I use? I am going to do it like this: Get 2 pots, one pot with 1 seed, the other with 20 seeds. I am going to compare the results and why it happened (which I don't know why). Any ideas?

2007-10-10 10:08:42 · 3 answers · asked by Diana C 3 in Botany

Is the Respiratory Therapist Position available overseas?? I cant find anything about it over in Europe or the UK.. I want to relocate to London

2007-10-10 10:08:40 · 1 answers · asked by ? 2 in Medicine

2007-10-10 10:07:41 · 5 answers · asked by jim m 5 in Astronomy & Space

Do you think such a thing is impossible, impractical, not do-able, a joke, a scam, a waste-of-time dream?
Guess what?
You need to be better informed.

Interested in HOW to make?
Want to know WHY these are not being made?

You need to understand how to overcome the blocks holding the people back!

WHERE is this information available?
(http://www.the-alternative.org.uk)

How much does the info. cost?
(Nothing. It's all available for FREE).

Just Download:
Project it
Chapter 3: Modern Architecture
Chapter 16: Space

2007-10-10 10:06:25 · 8 answers · asked by Anonymous in Astronomy & Space

2007-10-10 10:04:20 · 4 answers · asked by kathy p 3 in Earth Sciences & Geology

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Please don't star if you don't like the question

2007-10-10 10:02:43 · 12 answers · asked by ? 4 in Other - Science

First one who tells me gets best awnser... vut it has to be the right awnser!

2007-10-10 10:01:04 · 14 answers · asked by ~Chrissy~ 3 in Mathematics

Hints: case I: G is cyclic.
Case II: G is not cyclic- in this case show G can't have an element of order 3; then prove that if all the non-identity elements of a group are of order 2, the group is abelian.

Please try to use these hints to solve.....

2007-10-10 10:00:55 · 2 answers · asked by Jamanski 3 in Mathematics