Science & Mathematics - 8 December 2006

2006-12-08 23:49:19 · 8 answers · asked by Anonymous in Astronomy & Space

Hi, I have the answer for this question, but I can't seem to solve it. I know its simple algebra but just can't get to the right answer. Can someone help me. (College Student)

Q: The unit cell of crystalline iron is body-centered cubic, and the atomic radius of iron is 124.1pm. Determine the length of a unit cell of iron.
A: 286.6pm

2006-12-08 23:47:10 · 5 answers · asked by AUNIDLY 1 in Chemistry

I am considering it, using it just this one time in my whole life. I have a calculus final, which I don't feel prepared for, I need to cram like CRAZY and I don't want to mess it up.

My question:
I hear a lot of people using adderral to study, is ritalin just as good? Should I snort it, or take it in pill form? My sister has A.D.D. and she told me she has ritalin.

2006-12-08 23:45:30 · 8 answers · asked by twiztedweb 2 in Medicine

Who thinks religion is a ridiculous concoction of humanity and that science should be taken more seriously and the true intelligencia handed the keys to the city.. instead of popes, mullahs, rabbis and George Bush??

Anyone??

2006-12-08 23:40:55 · 14 answers · asked by Anonymous in Other - Science

2006-12-08 23:38:42 · 24 answers · asked by Sap Expert 1 in Astronomy & Space

I am interested in shooting a movie called "First indian on Venus" !
And i also want to prove it as a breaking news.

2006-12-08 23:37:45 · 10 answers · asked by Sap Expert 1 in Astronomy & Space

if 2 sides of a sq field were increased by 5 ft, the area of the field would increase by 245 ft. Find the area of the original square.

2006-12-08 23:26:40 · 6 answers · asked by dltamom 2 in Mathematics

This is for my grandsons homework project!

2006-12-08 23:26:27 · 3 answers · asked by Anonymous in Mathematics

I have a building with an elevator, I have been told that it needs a Shunt Trip wired through a Heat Detector to deactivate the Elevator.

All I can tell you is, the Elevator is 60A 220V, so have been told that is what my shunt unit should disconnect, but how do I wire the incoming power? The Heat detectors that we used elsewhere in the building are 24v wired from a Class B wiring, using single pair wiring, and E.O.L resistors. Can I use power from my Fire Alarm Panel, or do I have to use a different Heat Detector, what do I need to do, and how do I wire it?

2006-12-08 23:25:14 · 3 answers · asked by Kuschie 1 in Engineering

2006-12-08 23:22:53 · 9 answers · asked by brian o 2 in Weather

what is the purpose of the sun's magnetic and gravitational field? and how does the sun know when to set and when to rise?

2006-12-08 23:19:26 · 2 answers · asked by Anonymous in Astronomy & Space

I have a fear. Please help me find out!

2006-12-08 23:13:18 · 15 answers · asked by Anonymous in Astronomy & Space

Why does symbol of other elements in the periodic table do not relate to their name?

Ex:

Gold - Au
Mercury - Hg
Iron - Fe
Potassium - K, etc.

How did they get there corresponding symbols?

2006-12-08 23:11:24 · 11 answers · asked by totzzz_636 1 in Chemistry

2006-12-08 23:11:19 · 3 answers · asked by em 1 in Biology

2006-12-08 23:07:31 · 8 answers · asked by Anonymous in Astronomy & Space

and im joking! he really believes this!

2006-12-08 23:05:41 · 15 answers · asked by Anonymous in Astronomy & Space

2006-12-08 23:05:12 · 5 answers · asked by georgette s 1 in Physics

2006-12-08 23:03:55 · 5 answers · asked by mutahir a 1 in Other - Science

2006-12-08 23:02:36 · 3 answers · asked by loganathan_viji 1 in Engineering

1).Calculate ∫ x^3 dx.

A.x^2+C

B.3x^2+C

C.x^4+C

D.x^4
--------- + C
4


2).Calculate ∫ x ⅔ dx.

A. 2
-------- + C
3x⅔

B.3
------ + C
2x⅔

C.3x 5/3
----------- +C
5

D.5x 5/3
----------- + C
3


3).Calculate ∫ dx/x^2

A. 1
----- +C
x

B.-1
-------- +C
x

C.1
-------- +C
3x^3

D.-1
---------- +C
3x^3


4).Find the area bounded by the curve y = x 1/2 + 2,the x-axis,and the lines x=1 and x=4.

A.7 1/2
B.10 2/3
C.16
D.28 1/2


5).A body is moving along a straight line with a velocity which varies according to the equation v=9 t^2+2t, where v is in feet per second and t is in seconds. Find the expression for the distance as a function of time.

A.3t^3+t^2+C
B.3t^3+2t^2+C
C.18t+C
D.20t+C

2006-12-08 23:00:44 · 4 answers · asked by nova 1 in Mathematics

What website would I find this info in?

2006-12-08 22:53:58 · 2 answers · asked by Matt S 2 in Earth Sciences & Geology

Does this asteroid have a name, given by Astronomers?
Is NASA watching the asteroid's course?
Is this asteroid projected to approach Earth in 2014 or 2020,
or are there two asteroids?
Thanks.

2006-12-08 22:49:21 · 2 answers · asked by Ragu 1 in Astronomy & Space

2006-12-08 22:46:34 · 10 answers · asked by Palomada S 2 in Geography

2006-12-08 22:45:41 · 7 answers · asked by Hans B 5 in Mathematics

2006-12-08 22:44:58 · 1 answers · asked by D H 1 in Chemistry

2006-12-08 22:43:06 · 4 answers · asked by alwar1103 1 in Mathematics

It is an established discovery in last 10 years.
Is it Physics, molecular Biology , \Genetics or what.
U need updated references, since as with all discoveries ther are contrarians.
I can refer to an advanced science journal `Nature', which can be accessed in a good library, in case you are really interested. No guesses please.

2006-12-08 22:42:59 · 5 answers · asked by debussyyee 3 in Physics

pick and explain.:))
dalton, rutherford, bohr, thomson, schrodinger
please please please..:D

2006-12-08 22:41:38 · 4 answers · asked by jojo16 2 in Physics

Do elephants go to a special place to die? If not, what started this myth?

2006-12-08 22:40:26 · 6 answers · asked by plwimsett 5 in Zoology

I got -5 Am I wrong? If I am, Why did I get that answer. At fist I got 11. Just trying to finish up my pre-req test. Been a while since I have been out of school! Thanks!

2006-12-08 22:37:39 · 17 answers · asked by CeeStyle 2 in Mathematics