Science & Mathematics - 14 December 2006

If E symbolizes a lone pair, which of the following has the smallest bond angle?

a. AM2E2

b. AM3E

c. AM4

d. They are all the same.

e. Not enough information is given to answer this question

2006-12-14 02:01:43 · 3 answers · asked by bosox1989 1 in Chemistry

bcoz of:
a. length of pendulum increases & time period decreases
b. length of pendulum decreases and time period decreases
c. length of pendulum decreases & time period increases
d. length of pendulum decreases & time period decreases

2006-12-14 02:01:11 · 4 answers · asked by Anonymous in Astronomy & Space

A tank contains both nitrogen and hydrogen gas. If the partial pressures are 190mmHg and 303mmHg respectively, what is the mole fraction of nitrogen gas?

a. 0.875

b. 0.625

c. 0.547

d. 0.250

e. 0.385

2006-12-14 02:01:07 · 5 answers · asked by bosox1989 1 in Chemistry

Sometimes it's even smaller a few minutes later. And why does it go from yellow to white at times?

2006-12-14 01:59:53 · 11 answers · asked by Vegas_v 2 in Earth Sciences & Geology

Options:
A. Water must be present
B. It is not sufficiency reactive
C. Bleaches by reduction and not oxidation
D. Litmus is an organic compound

2006-12-14 01:58:51 · 4 answers · asked by Anonymous in Chemistry

how many cubic centimemeters does it take to fill a graduated cylinder to the 50 mL mark

2006-12-14 01:57:16 · 2 answers · asked by Anonymous in Earth Sciences & Geology

2006-12-14 01:56:59 · 11 answers · asked by Anonymous in Mathematics

At noon a jogger leaves one point, running at 8 mi/h. One hour later a bicyclist leaves the same point, traveling at 20 mi/h in the opposite direction. At what time will they be 36 miles apart

2006-12-14 01:56:01 · 4 answers · asked by Vioresa M 1 in Mathematics

a)bohr, b)mendeleev,c) chadwick,D) rutherford?

2006-12-14 01:54:05 · 5 answers · asked by jete413 1 in Chemistry

2006-12-14 01:53:32 · 3 answers · asked by Anonymous in Physics

I saw on discovery some people where trying to hover off the ground, but all they manage to do was bounce up and down and look happy.

2006-12-14 01:51:46 · 21 answers · asked by Nick S 2 in Other - Alternative

2006-12-14 01:51:21 · 2 answers · asked by Anonymous in Physics

Your Options:
A. Coach is built of metals
B. transmissions are usually far away
C. Running trains produce too much of noise
D. Friction between wheels & railway lines produce interference in radio waves

2006-12-14 01:51:17 · 1 answers · asked by Anonymous in Physics

2006-12-14 01:43:58 · 10 answers · asked by Pierce J 1 in Physics

2006-12-14 01:43:19 · 3 answers · asked by Micki E 2 in Mathematics

2006-12-14 01:43:02 · 14 answers · asked by Anonymous in Zoology

elements placed in horizontal rows on the Periodic Table are called:
A) periods
B) families
C) isotopes
D) metalloids

2006-12-14 01:36:46 · 4 answers · asked by jete413 1 in Chemistry

why? a friend gave me the question. i got it wron and she won' t tell me the answer, or why. help.

2006-12-14 01:32:18 · 5 answers · asked by Anonymous in Mathematics

Also, what is mitochondria?

2006-12-14 01:32:16 · 8 answers · asked by Anonymous in Biology

2006-12-14 01:30:41 · 6 answers · asked by arun 1 in Zoology

Anybody know any good dinosaur documentaries, about learning, how we know the existed, archealogy, that knd of stuff? Please suggest

2006-12-14 01:30:33 · 6 answers · asked by Dr.Jess 2 in Other - Science

In(tan(x))

I got 1/(tan(x)(cos(x)^2)), don't know it was correct or not.

2006-12-14 01:30:10 · 4 answers · asked by daniel_hower 1 in Mathematics

who discovered that the nucleus of the atom was small, positively charged, and contained most of the mass of the atom?
A) Bohr
B) Chadwick
C)Thomson
D)Rutherford

2006-12-14 01:28:06 · 3 answers · asked by jete413 1 in Chemistry

2006-12-14 01:28:00 · 4 answers · asked by punk rock princess 1 in Biology

2006-12-14 01:26:20 · 1 answers · asked by raj chauhan 1 in Engineering

There is a radio-controlled plane I want to buy as a gift. There are two to choose from: one with 49 MHz and one with 27 MHz. Which one is better?

Since I have no idea what a MHz is (mega hertz???) can you please explain that too? Both are the same price and contain the same accessories, which is why I'm confused as to which one is better.

2006-12-14 01:24:21 · 5 answers · asked by Anonymous in Engineering

2006-12-14 01:20:45 · 8 answers · asked by nev 2 in Earth Sciences & Geology

2006-12-14 01:17:16 · 15 answers · asked by Kain 5 in Physics

I am an Engineering student (B.E Electronics final year) and require help on my Final Year Project. Can anyone help me with an mp3 decoder that I have to implement in verilog using FPGA???????

2006-12-14 01:16:46 · 2 answers · asked by arsalkeen 1 in Engineering

2006-12-14 01:15:45 · 29 answers · asked by tuti fruiti 1 in Mathematics