Science & Mathematics - 22 November 2006

2006-11-22 10:22:48 · 10 answers · asked by Anonymous in Chemistry

Please if you know how to or know a website that gives good detail for this please list.

2006-11-22 10:22:47 · 1 answers · asked by montana 1 in Engineering

There I was in the pub, explaining the formula (X=-b +/- Sq Rt b sq - 4ac all over 2a) and she said, what use is that to anyone in the real world. So. Any ideas? Cheers, Steve.

2006-11-22 10:17:38 · 16 answers · asked by shrushgb 2 in Mathematics

I'm 20 years old and I'm not underweight.

2006-11-22 10:13:55 · 8 answers · asked by Anonymous in Medicine

Has anyone taken Wellbutrin XL? When you first started it were there any major side effects?

2006-11-22 10:12:29 · 4 answers · asked by TrofyWife 4 in Medicine

Does anyone know the actual importance of chromatin structure, and how its important in transcriptional regulation. Plus if any one knows any good sites i can read about this add those as well. Thanks all

2006-11-22 10:10:18 · 3 answers · asked by twisted_elegance 1 in Medicine

how would i go about solving this problem?

Suppose that X and Y are random variables with joint density:
fX;Y (x; y) = 1 such that -y < x < y, where y lies in the set (0,1)
0 elsewhere
.
Show that Cov (X; Y ) = 0, but X and Y are not independent.

please could you show me this step by step? Thanks

2006-11-22 10:07:33 · 1 answers · asked by drummanmatthew 2 in Mathematics

post-1982

2006-11-22 10:07:31 · 6 answers · asked by anonymous 4 in Chemistry

2006-11-22 10:03:22 · 3 answers · asked by ibid 3 in Chemistry

2006-11-22 10:02:33 · 14 answers · asked by MARIA G 1 in Mathematics

a 1500 kg car traveling east at 25 m/s and a 3000kg minivan traveling south at 16.7 m/s collide at a perpendicular intersection. Assuming that the collision is completetely inelastic, what is the velocity of the vehicles immediately after collsion? (answer is 13.9 m/s at 53.1 degress south of east) how do you do this?

i have this already
(1500kg)(25 m/s) + (3000kg)(16.7m/s)= Vab(4500kg)
Vab= 19.5 m/s
what's next?

2006-11-22 10:02:01 · 5 answers · asked by avalentin911 2 in Physics

2006-11-22 10:01:53 · 10 answers · asked by Anonymous in Chemistry

Why is it the main attraction of Canada for the tourists?

2006-11-22 10:00:20 · 11 answers · asked by snissari 2 in Earth Sciences & Geology

2006-11-22 09:55:32 · 1 answers · asked by 1vn t_choine 3 in Medicine

Specific material names of steel, rivets, bolts concrete and other materials needed.

2006-11-22 09:53:34 · 3 answers · asked by Anonymous in Engineering

Given that X,Y are RVs with an exponential distribution,
i.e. fx= e^(-x) and fy = e^(-y).
What is the mean of X*Y
The two functions are not independant and have limits from 0 to infinity.

2006-11-22 09:53:12 · 2 answers · asked by jackal_04 1 in Mathematics

2006-11-22 09:52:20 · 2 answers · asked by bmonica01 1 in Chemistry

by their own weight?

2006-11-22 09:52:05 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2006-11-22 09:51:28 · 3 answers · asked by jason c 1 in Geography

Use the following image for the questions
http://geocities.com/atomiccobra/figurea1.gif



1. Look at the circuit illustrated in Figure A-1. Assume that the values of R1 and R2 are equal. If you connect your meter's test probes to points A and B in the circuit, which of the following voltages would you measure?
A. 9 V
B. 6 V
C. 3 V
D. 0 V

2. In the circuit shown in Figure A-1, where would you connect your meter's test probes to measure the full battery voltage?
A. To points D and E, or to points B and E
B. To points A and C only
C. To points D and E, or to points A and C
D. To points B and E only

3. In the circuit shown in Figure A-1, suppose that the value of R1 is 100 kW and the value of R2 is 470 kW. At which of the following locations in the circuit would you measure the highest voltage with your meter?
A. Between points A and C
B. Between points A and B
C. Between points B and C
D. Between points B and E

2006-11-22 09:45:36 · 5 answers · asked by atomiccobra 2 in Engineering

does it vary from moose to moose or is there a standed figure

2006-11-22 09:43:45 · 4 answers · asked by lewis m 1 in Zoology

Simple Question really

2006-11-22 09:43:29 · 22 answers · asked by Anonymous in Mathematics

2006-11-22 09:42:42 · 4 answers · asked by redwolf2971 1 in Zoology

The owner of a carousel wants to paint the surface of its floor. The paint is very expensive, so he only wants to buy the exact amount needed. He sends his younger son to measure the the surface area of the carrousel. When the son gets there, he realizes that he cannot measure the exact diameter, because all of the machinery is in the middle of the hole. So, he takes a measurement and leaves. When he arrives home, he tells his father that he measured 70 feet from one outer edge to the the other side, and the tape measure touched the opening in the center.

His father was furious! How could he be so incompetent?! But his older son soon spoke up: "I know the area of the floor of the carrousel." His father was amazed.

What is the area of the floor of the carrousel? There is enough information to solve this problem. Here's a picture of the solution:

http://mathforum.org/pcmi/hstp/resources/papercup/cup2.revised.gif

The length between points A and B is 70 feet. Good luck!

2006-11-22 09:42:21 · 6 answers · asked by Dave 6 in Mathematics

2006-11-22 09:42:05 · 6 answers · asked by prime time 1 in Earth Sciences & Geology

2006-11-22 09:36:45 · 9 answers · asked by wanda_brown62 1 in Mathematics

2006-11-22 09:35:13 · 14 answers · asked by polymath 1 3 in Astronomy & Space

2006-11-22 09:34:24 · 9 answers · asked by wanda_brown62 1 in Mathematics

2006-11-22 09:32:24 · 13 answers · asked by wanda_brown62 1 in Mathematics

2006-11-22 09:31:00 · 10 answers · asked by wanda_brown62 1 in Mathematics