Science & Mathematics - 1 October 2006

For a seed, what is the purpose of the hard outer coating?
What are the cotyledons?

What is the inside of an embryonic plant like?

2006-10-01 07:01:13 · 2 answers · asked by pnoiz1 2 in Botany

My girlfriend is always complaining about breaking her nails. My question is, why do toe nails seem to be ever so much stronger than finger nails, they never seem to break easy?

2006-10-01 07:00:08 · 11 answers · asked by mar3cus 1 in Biology

It's been 7 months since I am dealing with a problem in a relationships ..I am having headaches everyday since that time, and head pressure to due the relationships and doubt ...Sometimes, I don't feel my head anymore...do you think it 's a symptom of brain tumor ...? can managing a problem for too long cause brain tumor ?

2006-10-01 06:58:16 · 4 answers · asked by bobby s 1 in Medicine

2006-10-01 06:57:43 · 3 answers · asked by Anonymous in Chemistry

Can an engineer please answer these questions? Thank you so much! It may be long, but I greatly appreciate it!
1)What company are you employed in and what kinds of products/services are produced there?
2)What is your present position? What path did you follow and how long did it take you to get there?
3)What are your likes and dislikes of your work?
4)What specific things have occupied your time during the past week?
5)Do you use a personal computer in your work? How often and for what tasks? What software is most useful to you? Do you use a CAD program?
6)What kind of writing do you do on the job? How is this writing important?
7)What kind of public speaking/presentations do you do on the job? What aids do you use in your presentations? How do you prepare for a presentation?
8)Do engineers in your company work alone or in teams? If teams, what different areas/backgrounds do team members come from?
9) What skills do you think are most important to success as an engineer?
10)What sort of tasks might be given to a new engineering graduate who begins working in your company?
11)If you were going to hire a new engineer just out of college, what specific attributes/background would you be looking for in the successful applicant?
12)Do you think the school you graduate from is very important in finding your first job?
13)What specific advice would you offer to first year students to guide them toward success in engineering study?

2006-10-01 06:57:14 · 3 answers · asked by monkeyspeed13 1 in Engineering

in the above question i have used 2H+ to show a single positive H ion and Mg++ to show dipositive Mg ion.the other + signs are for showing the reaction. in the H2 2 has to be written down but i couldn't do it in the computer. the answer says it is 50 cm cube as 1 mole of Mg reacts with 500 cm cube of 4M HCL. but there is no HCL in the equation, so how is this statement true and how was 50 cm cube derived?

2006-10-01 06:57:09 · 2 answers · asked by bisal 1 in Chemistry

Why does rain fall at varying speeds? sometimes really gentle and other times extreamly hard.

2006-10-01 06:56:18 · 5 answers · asked by mar3cus 1 in Weather

2006-10-01 06:53:52 · 10 answers · asked by stucknthird 2 in Astronomy & Space

I have a report to do about his atomic theory. I have to include how he found it, most website only include what it is, but not how he arrived at it. If you know or know a website that has this information please help! Thankyou

2006-10-01 06:52:11 · 2 answers · asked by alex e 3 in Chemistry

2006-10-01 06:51:22 · 3 answers · asked by Bubble18 2 in Biology

2006-10-01 06:51:03 · 4 answers · asked by mussinasmeg 1 in Physics

2006-10-01 06:50:21 · 2 answers · asked by mussinasmeg 1 in Physics

(x squared - x- 22)^4/3 =16

2006-10-01 06:45:06 · 4 answers · asked by Need Help 2 in Mathematics

How to find "smallerst positive interger that when multiplied with 56 makes a perfect square.

2006-10-01 06:43:40 · 8 answers · asked by Jenny 2 in Mathematics

2006-10-01 06:42:26 · 21 answers · asked by Anonymous in Physics

2006-10-01 06:37:56 · 3 answers · asked by Anonymous in Other - Science

That is generally we can identify if a man or a woman is speaking even without knowing their gender.
Any technical and scientific explanation plz.

2006-10-01 06:37:48 · 19 answers · asked by Anonymous in Physics

2006-10-01 06:37:42 · 11 answers · asked by nerdwannabe 1 in Physics

what is the difference between energy absorbed and released in term of electrons?(i mean when a photon hits an electron how to know if energy is absorbed or released)
Please explain the entire processe clearly?

2006-10-01 06:35:32 · 2 answers · asked by piti 2 in Physics

for project

2006-10-01 06:34:35 · 12 answers · asked by fallenzpuppet 2 in Other - Science

how do you write it and i need a example

2006-10-01 06:34:29 · 11 answers · asked by randyhot123 1 in Biology

2006-10-01 06:32:17 · 1 answers · asked by mandira_nk 4 in Astronomy & Space

2006-10-01 06:31:18 · 15 answers · asked by Jackie R 1 in Mathematics

2006-10-01 06:26:47 · 7 answers · asked by Anonymous in Other - Science

how strong are plastic wraps?
what are plastic wraps?

2006-10-01 06:25:30 · 3 answers · asked by casey c 1 in Chemistry

2006-10-01 06:22:29 · 5 answers · asked by mussinasmeg 1 in Physics

2006-10-01 06:22:25 · 7 answers · asked by f_k_l_5031 1 in Biology

A stone is thrown vertically upward with a speed of 12m/s from theedge of a cliff 75.0 m high
how much later does it reach the bottom of the cliff?
what is it's speed just before hitting the ground?
what total distance did it travel?

please write initial velocity as u and final one as v

2006-10-01 06:22:22 · 2 answers · asked by Anonymous in Physics

2006-10-01 06:21:59 · 2 answers · asked by Anonymous in Biology

One serving of canned beets contains 1 gram of protein and 6 grams of carbohydrates. One serving of canned red beans contains 6 grams of protein and 20 grams of carbohydrates. How many servings of each would it take to get exactly 21 grams of protein and 78 grams of carbohydrates?

beets = t

beans = n

1t + 6n = 21 t = 21 – 6n

6t + 20n = 78 6(21-6n) + 20n = 78

126 – 36n + 20n = 78

48 = 16n

n = 3

t = 21 – 6(3) = 3 3 beets and 3 beans

2006-10-01 06:21:43 · 4 answers · asked by SCHNITZEL 1 in Mathematics