Science & Mathematics - 1 October 2006

Do any of you know what I should do to make three kilograms of lead azide? What materials should I start with?

2006-10-01 17:53:36 · 2 answers · asked by me8md 3 in Chemistry

i wanted to do a magic trick with a fork and i was bending it back and fourth very quick. i burned my self, dropped the fork and embarassed myself infront of a big crowd.

2006-10-01 17:51:10 · 9 answers · asked by iSHoN 2 in Other - Science

2006-10-01 17:46:35 · 4 answers · asked by Anonymous in Biology

a. for f(x) = 2x^5 + 3x^3 + x, find f'(x)
b. how can you use answer to part (a) to determine if f(x) is invertible.

2006-10-01 17:46:27 · 4 answers · asked by ? 1 in Mathematics

I enroll myself as a private candidate in physics and Bio in Singapore. Study on my own. Want to know what kind of questions they will be asking on phy/bio pratical. The exams are coming on the 18th of Oct. Please help.

2006-10-01 17:45:24 · 3 answers · asked by yahooanswers 3 in Biology

2006-10-01 17:44:33 · 8 answers · asked by jacobt1993 1 in Botany

2006-10-01 17:38:29 · 13 answers · asked by Anonymous in Mathematics

2006-10-01 17:37:39 · 7 answers · asked by skycoy32 1 in Mathematics

giving a bridge that was 5.0 m long has been washed out and road is level on both sides but the road on the far side is 2.0 m lower than road on starting side.

2006-10-01 17:33:14 · 11 answers · asked by Anonymous in Physics

2006-10-01 17:32:50 · 4 answers · asked by Anonymous in Zoology

inspired by the splendor of this landscape

2006-10-01 17:30:33 · 3 answers · asked by tinker4ok 1 in Earth Sciences & Geology

2006-10-01 17:29:41 · 7 answers · asked by Asilos Magdalena 1 in Biology

Can any one tell me how soap and detergents are prepared...i want a website that has all the info 4 preparation, uses, properties and other stuff.... i need it for a project and i have to take print outs.....so an internet site would be better so pls help..... any detergent and soap i need both....tnx a lot..

2006-10-01 17:29:35 · 4 answers · asked by Anonymous in Chemistry

list 9 body systems
the organs that belong to each

2006-10-01 17:28:36 · 7 answers · asked by Anonymous in Biology

A farmer can plow a field in 4 days by using a tractor. A hired hand can plow the same field in 6 days by using a smaller tractor. How many days will be required for the plowing of this field if they work together?

2006-10-01 17:26:30 · 7 answers · asked by Denise L 1 in Mathematics

1 real life example

2006-10-01 17:26:05 · 5 answers · asked by Anonymous in Biology

1 real life example

2006-10-01 17:24:55 · 0 answers · asked by Anonymous in Biology

There is a crazy flying bug.. it has 8 legs, that are long and skinny and about 3 inches long. it has large wings, and it flying all over my wall.........what the heck can this be???

2006-10-01 17:22:24 · 8 answers · asked by tinagrace624 1 in Other - Science

I would like to know in detail how to trace nerve impulses that my brain would send from one neron to another and then to muscle fibers

2006-10-01 17:20:50 · 5 answers · asked by kiana C 1 in Other - Science

Find all the ordered pairs of real numbers that satisfy the following

x+yz=6
y+xz=6
z+ xy=6

2006-10-01 17:19:38 · 9 answers · asked by Antonio G 1 in Mathematics

2006-10-01 17:18:48 · 30 answers · asked by Anonymous in Other - Science

2006-10-01 17:18:47 · 1 answers · asked by fish 1 in Chemistry

what is the defination of Interface Trap Density ? what is the info can these parameter tell us ?

2006-10-01 17:16:42 · 1 answers · asked by lkaiman 1 in Physics

2006-10-01 17:15:03 · 6 answers · asked by Anonymous in Other - Science

A 20 lb. bag of economy brand cement mix contains 25% cement and 75% sand. How much pure cement much be added to produce a cement mix that is 40% cement?

2006-10-01 17:11:46 · 6 answers · asked by Denise L 1 in Mathematics

Trying to conduct an eigenvector decompsition on a correlation matrix that contains categorical, continuous and binary variables. I am trying to reduce the number of varibles I use for a regression, and am trying to identify the principle components.

2006-10-01 17:09:36 · 1 answers · asked by Ben M 2 in Mathematics

Five pirates raid the ship of a wealthy bureaucrat and steal his trunk of gold pieces. By the time they get the trunk aboard, dusk has fallen, so they agree to split the gold the next morning.
But the pirates are all very greedy. During the night one of the pirates decides to take some of the gold pieces for himself. He sneaks to the trunk and divides the gold pieces into five equal piles, with one gold piece left over. He puts the gold piece in his pile, hides it, puts the other four piles back in the trunk, and sneaks back to bed.One by one, the remaining pirates do the same. They sneak to the trunk, divide the coins into five piles, with always one coin left over. Each pirate puts the gold coin in his own pile, hides it, and puts the remaining four piles back in the trunk.

Please simplify and show work.

2006-10-01 17:09:33 · 2 answers · asked by Jeffrey Z 1 in Mathematics

any one can hear without the ears if he/she donot have the skin also?

2006-10-01 17:06:06 · 10 answers · asked by Anonymous in Other - Science

2006-10-01 17:04:59 · 13 answers · asked by Anonymous in Astronomy & Space

2006-10-01 17:03:25 · 1 answers · asked by :) 2 in Biology