Science & Mathematics - 11 October 2006

To produce electricity to suppy power to part of the club? apparently there are certain alloys that can produce electriciy when they are squeezed.

2006-10-11 07:38:55 · 7 answers · asked by Anonymous in Physics

Three points are on a coordinate plane: A(1, 5), B(-2, -4), and C(6, -4).?

CAN SOMEONE PLEASE Write an equation of the line that contains B and C?

2006-10-11 07:38:51 · 4 answers · asked by sweet_backseat_kisses 1 in Mathematics

2006-10-11 07:35:08 · 8 answers · asked by Peter J 1 in Mathematics

2006-10-11 07:34:42 · 12 answers · asked by kjcmac20400 1 in Other - Science

All you wonderful Calculas students should know this one!!!! I already tried to awnser with 1---but i guess you can have more than one--
and i have tried as many as the function wants.....
also i have tried as many as the function defines.......
apparently all three of those awnswers are incorrect.......
after 3rd try i got the following message back from my professor, "keep thinking"...............so i ran out of options

2006-10-11 07:33:41 · 4 answers · asked by Bearkiller a 1 in Mathematics

Can someone PLEASE Write an equation in point-slope form of the line with slope -1 that contains point C. And then 2. Write an equation in point-slope form of the line that contains points A an B.

2006-10-11 07:31:04 · 4 answers · asked by sweet_backseat_kisses 1 in Mathematics

for a biology crossword its for

2006-10-11 07:29:05 · 8 answers · asked by welshandproud 3 in Biology

Hi i'm a grade 12 student doing a lab and need to know how to electroplate copper on to a metal object.

2006-10-11 07:29:02 · 1 answers · asked by gordon_benbow 4 in Chemistry

When a voltage of 4.5V is applied across a lightbulb,a current of 120mA passes thru its filament. What is the resistnace of the bulb and the power disappated in it?

I have no thoughts on where to begin on this one.

I WILL chose a BEST ANSWER....

2006-10-11 07:28:52 · 5 answers · asked by BugGurl 3 in Physics

2006-10-11 07:27:45 · 25 answers · asked by Wing commander 3 in Physics

If 38.42 g of Al at 275.1 degrees C is added to 191.9 g of water at 21.9 degrees C, what is the final temperature in degree C of the mixture?

2006-10-11 07:27:13 · 2 answers · asked by cashmanpg10 2 in Chemistry

Use a difference table to work out the rule for the Nth Term of these sequences:
a) 10,40,90,160
b)4,7,12,19
g)3,9,19,33,51
j)4,11,22,37,56
m)3,16,39,72,115

2006-10-11 07:26:55 · 9 answers · asked by peter977097 1 in Mathematics

Okay, I am having such a hard time dividing an hour into decimals!
1 hour/60 min = 1.00, ok?
½ hour/30 min = 0.50
¼ hour/15 min = 0.25

I know that, but what would 50 min, 40 min, 20 min, 5 min equal?
Can anyone post a link to a chart that displays 1 hour in all possible increments? Thanks!

2006-10-11 07:24:37 · 9 answers · asked by Anonymous in Mathematics

2006-10-11 07:23:36 · 7 answers · asked by sahil k 1 in Zoology

A sphere rolls on a smooth plane with angular velocity omega. What is the angular momentum of the point of contact of the sphere with the surface

2006-10-11 07:21:44 · 1 answers · asked by Anonymous in Physics

2006-10-11 07:17:53 · 36 answers · asked by Vher 1 in Astronomy & Space

2006-10-11 07:17:26 · 13 answers · asked by Dan 2 in Earth Sciences & Geology

I have 4 cups side by side marked A, B, C and D. Each cup holds 4 identical marbles... 1 red and 3 blue. If I randomly select 1 marble from each cup what is the probability of picking out:
(a) at least 2 red marbles?
(b) at least 3 red marbles?

I am able to determine the probability of 0 red marbles (0.3164) , at least 1 red marble (0.6836) and 4 red marbles (0.0039) but have trouble in determining (a) and (b) listed above.

As a starting point I initially thought the answer for (a) lay with the probability of a red marble for Cup A (0.25) * at least 1 red marble for Cups B,C and D (0.5781)...which gives 0.1445. It seems overly simplistic to multiply this figure x 4 (for each cup) to give a total probability of 0.578 for at least 2 red marbles. This answer seems much too high.... given that at the probability of at least 1 red marble is 0.6836.

All help appreciated, especially the workings of how the answers to (a) and (b) are derived.

2006-10-11 07:15:01 · 2 answers · asked by Pseudo 2 in Mathematics

2006-10-11 07:14:32 · 8 answers · asked by Lakeisha K 1 in Mathematics

2006-10-11 07:10:24 · 7 answers · asked by brittenybryant 1 in Chemistry

I ASKED THIS QUESTION EARLIER, BUT ACCIDENTALLY REMOVED IT.

2006-10-11 07:04:28 · 4 answers · asked by crazybrunette1991 2 in Mathematics

how much of oxide, chlorine, sulfate, and phosphate are in
a.Potassium,
b.barium
c.aluminum,
d. ammonium?

2006-10-11 06:59:33 · 2 answers · asked by babycakez 3 in Chemistry

(-2x^4+9x^3-11+20) divisor is (2x+3) = quotiont and remainder

2006-10-11 06:59:33 · 3 answers · asked by SCHNITZEL 1 in Mathematics

U will need a pen and paper for this

(13L to the power of 4 times M to the power of2 times N to the power of 2) divide by ( 26L squared times M to the power of 4 times N squared)


Good luck!!

2006-10-11 06:58:09 · 6 answers · asked by Adriaan 1 in Mathematics

2006-10-11 06:57:52 · 3 answers · asked by deleonvegam 1 in Chemistry

2006-10-11 06:57:22 · 1 answers · asked by Johnnie 1 in Zoology

I was told she died of old age although she wasn't old. (I know I'm a bit behind on news) It has something to do with protein in the cells which prevents cells to divide forever. I could be wrong but if so, what's that protein called?

2006-10-11 06:56:36 · 2 answers · asked by aurorasMOM 2 in Biology

Its a project I have to do for chemistry and i'm thinkin of putting (6.023 x 10^23)(mole rat)(definition of mole)i need some interesting facts or something interesting about it.I can't seem to find any information...i need some help with it...anyone good at this?

2006-10-11 06:54:30 · 8 answers · asked by Anonymous in Chemistry

2006-10-11 06:53:38 · 2 answers · asked by samar 1 in Chemistry

2006-10-11 06:51:22 · 5 answers · asked by liketoaskq 5 in Mathematics