Science & Mathematics - 11 November 2006

In the simple experiment where you stick an iron nail and a copper coin in a potato to make a cell, it is obvious that the further apart the two metals are in the electrochemical series, the greater voltage will be prduced (i.e. lead and copper together would be really bad, iron and copper is better etc.). But what difference does it make to switch the potato for a lemon? Does this have any effect on the voltage produced by the cell?

2006-11-11 03:50:48 · 6 answers · asked by Rich 5 in Chemistry

hemiplegia is a type of cerebal palsy

2006-11-11 03:50:22 · 4 answers · asked by Anonymous in Medicine

I am fixing a stainless steel pipe for cooling system.I need to connect a male connector(male thread) and socket (female thread).Is there any compound to apply prior to fix the threads so that there will be no leakage? This pipe will carry R22 gas for cooling.Thanks.

2006-11-11 03:50:11 · 5 answers · asked by dwarf 3 in Engineering

Perhaps the guy or girl doesnt smell like shi* but in general it always like to single someone out and bug the hell outta em. Like me!

2006-11-11 03:48:46 · 8 answers · asked by Anonymous in Zoology

2006-11-11 03:48:15 · 2 answers · asked by luckyplaya23 2 in Chemistry

2006-11-11 03:46:16 · 13 answers · asked by aanchal g 1 in Astronomy & Space

http://en.wikipedia.org/wiki/Uncertainty_principle

2006-11-11 03:45:00 · 9 answers · asked by Seeker 4 in Physics

2006-11-11 03:43:22 · 4 answers · asked by Jesus is the Lord ! 2 in Engineering

the last word on gravity?

2006-11-11 03:41:47 · 11 answers · asked by Anonymous in Physics

a ton of feathers or a ton of bricks?

2006-11-11 03:38:30 · 27 answers · asked by Anonymous in Other - Science

im currently working on a math review and there are some questions that i dont know how to solve so if someone could go to the following link and help me out with #20 that would be the bestest!!!

http://www.montgomerycollege.edu/Departments/math/placement/clmtest.pdf

2006-11-11 03:36:16 · 9 answers · asked by WaLLy 1 in Mathematics

put the branch of science next to it its type ex physics pure

2006-11-11 03:34:41 · 1 answers · asked by markus l 1 in Other - Science

until it loses all cohesion, or will gravity ultimately begin to draw it together again, until it collapses and the big bang begins again?

2006-11-11 03:34:28 · 12 answers · asked by bazranz 2 in Astronomy & Space

Ok this is a simple algebra problem, but for some reason I can't figure out what I am doing wrong. The problem is:
SOLVE (written in interval notation):

-5x+11/2 is less than or = 7.

The first step is to multiply each variable/number by 2; the common denominator of the two fractions (-5x+11/2 & 7/1). Hence, you would get -10x + 22 is less that or = 14. Then, you would subtract 22 from both sides therefore making -10x less than or = -8. Divide -8 by -10 and the solution therefore is [8/10 to infinity), or 4/5 to infinity if simplified. However, my stinking College Algebra book says the answer is [3/5 to infinity).


Step 1: -5x + 11/2 < or = 7

Step 2: (2)-5x + 2(11) < or = (2)7

Step 3: -10x + 22 < or = 14
- 22 -22

Step 4: -10x < or = -8
/-10 /-10 = 8/10 = 4/5!


HOW COULD IT BE 3/5?!? Any thoughts or advice? Thanks!

2006-11-11 03:34:18 · 12 answers · asked by Anonymous in Mathematics

2006-11-11 03:30:49 · 2 answers · asked by ZAHOOR A 1 in Engineering

2006-11-11 03:27:53 · 14 answers · asked by thewebbsdh 1 in Zoology

The storm on the Saturn is about 5,000 miles wide, measuring roughly two thirds the diameter of Earth, with winds howling clockwise at 350 mph (550 kph). It has a well-developed eye ringed by towering clouds that soar 20-45 miles above those in the dark center, hurricane-like storm is two to five times higher than clouds in our thunderstorms and hurricanes, NASA said.
Scientists said it was unclear whether Saturn's storm was a water-driven system or a black hole. It differs from Earth hurricanes in part because it remains stuck at the pole rather than drifting as such storms do on this planet and because it did not form over a liquid water ocean, with Saturn being a gaseous planet, NASA said.

"It looks like a hurricane, but it doesn't behave like a hurricane," Andrew Ingersoll, a member of Cassini's imaging team at the California Institute of Technology in Pasadena, said in a statement. "Whatever it is, we're going to focus on the eye of this storm and find out why it's there." "We're all arguing with each other about what it might or might not be."

2006-11-11 03:26:08 · 10 answers · asked by wiki 1 in Astronomy & Space

2006-11-11 03:24:39 · 6 answers · asked by nandini s 1 in Chemistry

1st: Q = 10(L,K) ^0.5

The book says: that the partial derivitve equals:

5 K/L with respect to L and 5 L/K with respect to K.

But how do they come up with 5?

2006-11-11 03:22:57 · 6 answers · asked by Dave 6 in Mathematics

I know what the golden ratio stands for but why is this number special? How does it relate to the Fibonacci sequence? What is it's role in greek and egyptian architechture?

2006-11-11 03:18:13 · 3 answers · asked by AHHH CHOOOOOOOO (sneeze)! 2 in Mathematics

SE

2006-11-11 03:17:35 · 1 answers · asked by Anonymous in Engineering

SE

2006-11-11 03:14:23 · 3 answers · asked by Anonymous in Engineering

Are there any formulators out there that have any ideas on putting together a cleaner that removes carbon (baked on grease) from an aluminum pan without attacking the meatal itself?? Ive been thinking about this problem for a while and would appriciate any ideas you guys might have. Thanks

2006-11-11 03:14:19 · 2 answers · asked by chemhead102 2 in Chemistry

2006-11-11 03:12:39 · 6 answers · asked by Gorgeous 1 in Earth Sciences & Geology

2006-11-11 03:09:35 · 9 answers · asked by Scott M 1 in Engineering

I'm doing a science project and wanted to know.. What causes higher and lower salinity?

2006-11-11 03:09:33 · 7 answers · asked by likewhoaitscindy 1 in Earth Sciences & Geology

could anyone please help me to solve this problem, (x+y)^2 + (x-3y)^2

2006-11-11 03:08:59 · 10 answers · asked by WaLLy 1 in Mathematics

In this story I'm writing, the villain is wearing gloves so no figerprints and he has emptied his pockets so nothing drops out to give a clue. What precautions should he take to avoid leaving a DNA sample?

2006-11-11 03:07:31 · 9 answers · asked by Anonymous in Other - Science

2006-11-11 03:05:45 · 17 answers · asked by ozaneky 1 in Astronomy & Space

2006-11-11 03:05:31 · 2 answers · asked by Anonymous in Biology