Science & Mathematics - 30 July 2007

i know in all the movies they do
but do they really eat people...

2007-07-30 05:19:21 · 9 answers · asked by Anonymous in Zoology

2007-07-30 05:16:14 · 4 answers · asked by Anonymous in Mathematics

An 8kg box and a 10kg box that are attached by a rope that passes over a frictionless pulley slide on a frictionless inclines.

a.Find the acceleration of the boxes and the tension in the rope.

Here is a picture of the boxes
http://img521.imageshack.us/my.php?image=ps3dm6.jpg

2007-07-30 05:14:10 · 1 answers · asked by physics maniac 2 in Physics

a-5 X a-3 X a-2 = ?

the X = times sign

the numbers are exponents and the minus signs are negative signs!!

help me with what that equals!!

2007-07-30 05:12:49 · 3 answers · asked by Kwan L 2 in Mathematics

The rest of the world uses 220. I find that strange.

2007-07-30 05:11:06 · 12 answers · asked by gregpasq 4 in Engineering

2007-07-30 05:10:23 · 31 answers · asked by cookiemonster_4_u 2 in Zoology

Application of Newton's Laws. A 4kg block resting on a 30 degrees incline is attached to a second block of mass m by a cord that passes over a smooth peg. The coefficient of static friction between the block and the incline is 0.4.

A. Find the range of possible valuesa for m for which the system will be in static equilibrium.

B. If m=1kg, the system will be in static equilibrium. What is the frictional force on the 4kg block in this case?

--
here is the link on the picture of the blocks so that you easily understand the problem
(http://img508.imageshack.us/my.php?image=ps1nc2.jpg)

2007-07-30 05:09:49 · 1 answers · asked by physics maniac 2 in Physics

find the dimensions

2007-07-30 05:08:50 · 5 answers · asked by Anonymous in Mathematics

mars!there's a people live there

2007-07-30 05:08:34 · 6 answers · asked by Anonymous in Astronomy & Space

solve by setting up a linear system

2007-07-30 05:07:11 · 11 answers · asked by Anonymous in Mathematics

I want to study geophysics, cosmology and maybe even biochemistry ... but initially, I want to finish a BS in geophysics, and then slowly work on the rest as I'm able.

Here is my question; I want to study these fields because of my intense interest in them, but am very unsure what I want to do with the knowledge, career wise. I'm in Texas, so I know there is work to be had with the oil companies, but I wanted to know what sort of other opportunities (besides teaching!) there are with a BS in geophysics. Would I need to complete a Master's or even my doctorate to be worth anything? Any input or advice would be appreciated ...

Also, does anyone know if it is VERY important where you have your degree from? I work my way through school and support myself so money is obviously an issue. I completed my two year/Associate's at a community college and am attending the University of Texas at Arlington for my BS.

2007-07-30 05:07:00 · 3 answers · asked by Random_Girl 3 in Earth Sciences & Geology

I don't know of any other first world country that still uses the imperial system. How come america never made the switch. Joke all you want but metric makes alot more sense. 1 liter water = 1 kilogram. The conversions between measurments are easy everything is base ten. 16 ounces in a pound 2000lbs in a ton wtf? Is there a good reason the switch was never made?

2007-07-30 05:05:26 · 9 answers · asked by Surger1 3 in Mathematics

If you got everybody in the world facing the same direction and started running could it make the Earth spin???

2007-07-30 05:05:22 · 9 answers · asked by bl2014 1 in Earth Sciences & Geology

They've told me it will help me find the truth. On the other hand I have a presciption for the blue pill.. I'll forget it ever happened.

2007-07-30 05:04:21 · 5 answers · asked by Anonymous in Medicine

I don't know how it got there! It was just there!

2007-07-30 04:58:32 · 12 answers · asked by Anonymous in Zoology

2007-07-30 04:58:20 · 6 answers · asked by roger m 2 in Physics

2007-07-30 04:56:29 · 2 answers · asked by friendly gal 1 in Botany

Let S be a closed surface in R^3 and let ds be elementary area vector, that is, normal to S at a given point of S, oriented outwards and with magnitude |ds| equal to the elementary area. How can we show that Integral (over S) ds = 0?

Thank you

2007-07-30 04:50:43 · 2 answers · asked by Liza 1 in Mathematics

can you please solve theses inequality's if posible
1. -2 > 5 + y

2. /j-7/ - 1 < 3 5/6

3. /3y + 1/ - 6 = -2

2007-07-30 04:48:24 · 4 answers · asked by sailorsoccer07 1 in Mathematics

What are careers involving the marine life in the ocean?

2007-07-30 04:47:30 · 6 answers · asked by Anonymous in Zoology

does anybody have any info on what kinds of ingestibles are out there to change my epigentics, examples food, medication, maybe even radiation and exercise.

I'm just looking really for opinions about the manipulation of epigentics

http://www.pbs.org/wgbh/nova/sciencenow/3411/02.html

2007-07-30 04:46:54 · 2 answers · asked by Mercury 2010 7 in Biology

This article appeared on news.google.com today: http://www.dailymail.co.uk/pages/live/articles/health/healthmain.html?in_article_id=471736&in_page_id=1774

and it tells how scientists identified a gene responsible for MS. It seems new genes are getting discovered frequently. But what is the next step? What applications come from this knowledge? Currently, how far has the scientific community gone so far in developing applications from discovering genes?

And yes, I've seen Gattica. I'm hoping someone who has real world knowledge of this subject (as opposed to the movies) can answer this question.

Thanks!!!

2007-07-30 04:46:24 · 5 answers · asked by q4norm.answ3rs 3 in Biology

2007-07-30 04:42:14 · 3 answers · asked by samaireh d 1 in Biology

If a true falls in the woods and nobody is there to hear it, did it make a sound.

2007-07-30 04:37:26 · 5 answers · asked by Anonymous in Physics

The Earth rotates from the west to the east and circuits around the sun from the west to the east. Is the any relashionshp between weather moving and the rotation of the Earth?

2007-07-30 04:37:24 · 4 answers · asked by ayakofeminine 2 in Weather

A rotary kiln (batch) of length 1meter and 16centimeter diameter
feed 10kg per batch

2007-07-30 04:36:53 · 2 answers · asked by clems1 1 in Engineering

a star has a planet held in orbit by gravitational attraction if the mass of the star were doubled what effect would this have on the gravitational attraction between the star and the planet ? explain your answer

2007-07-30 04:36:18 · 3 answers · asked by Anonymous in Physics

2007-07-30 04:35:42 · 5 answers · asked by Anonymous in Botany

I know the whole thing about + and - forces, but I still cannot see the casual link between them. What is it that pulls the two magnets together? Can anybody explain to me why this is?

2007-07-30 04:32:29 · 12 answers · asked by george 3 in Physics

2007-07-30 04:24:49 · 9 answers · asked by McLean L 1 in Engineering