Science & Mathematics - 16 November 2006

It grew alone on the cut surface of a firewood log (tree type unknown) and is shaped like a slightly deflated blimp, with the long axis parallel to the wood's surface. It is 1.5 inch long and 0.5 inch wide at its widest point, is black or v. dark brown and has a pebble-like finish with grain size about 0.05 inch. It is pretty tough and is undamaged, seems hollow, has no features like gills, and is attached to the wood via a curved stem at one end. (Toughness, color and finish may have been different when it was younger.)

2006-11-16 09:58:34 · 2 answers · asked by kirchwey 7 in Botany

I have a question about exponents:

If you have 5x^4, then do you do x^4, and that times 5, or do you do 5 times x, and that answer to the fourth?

2006-11-16 09:57:02 · 12 answers · asked by Anonymous in Mathematics

2006-11-16 09:54:04 · 3 answers · asked by Anonymous in Zoology

the haber process requires nitrogen and hydrogen, what are reasonable sources of both these elements.

2006-11-16 09:53:26 · 4 answers · asked by Anonymous in Chemistry

2006-11-16 09:51:59 · 1 answers · asked by x0x0_karina 1 in Chemistry

they are three questions ( but hard ones )

1.find the speed of a 4-kg bowling ball with a kinetic energy of 160 joules.

2. find five examples in advertising that utilizr a parabola. they must be designs specifically using the shape and not just a letter in the companies name. you may either describe or give the source (website) of the design.

3.explain when you would use the different methods of solving quadratic equations. give examples

2006-11-16 09:51:24 · 3 answers · asked by the genius 1 in Mathematics

im doing a science project on endangered rivers and i need help finding endangered rivers.

2006-11-16 09:51:08 · 4 answers · asked by ducky051992 1 in Geography

In science class we are having a debate, on creation vs. evolution. I believe in creation, BUT WE WERE ASSIGNED TO DIFFERENT TEAMS, AND I WAS ASSIGNED TO EVOLUTION. I am a topic presenter, which means I am presenting the topics in the debate, and I have the biggest role. The only problem is that I'm a creationist, so I know nothing about evolution. Please give me some facts to prove evolution. Thank You!!!!

2006-11-16 09:50:33 · 7 answers · asked by Anonymous in Biology

Okay well, There are these girls i know and they always talk in gibberish around me and won't tell me how to speak it. can someone PLEASE tell me how to speak gibberish????!?!?

2006-11-16 09:50:10 · 6 answers · asked by Nichole 3 in Mathematics

2006-11-16 09:49:32 · 2 answers · asked by mo 1 in Chemistry

and would it fit in a pint pot?

2006-11-16 09:49:12 · 33 answers · asked by KU 4 in Biology

2006-11-16 09:48:30 · 4 answers · asked by buster 1 in Weather

You might have to differntiate using natural ln.

2006-11-16 09:47:53 · 8 answers · asked by izzyhearts 1 in Mathematics

2006-11-16 09:45:56 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2006-11-16 09:45:07 · 5 answers · asked by danielp359 1 in Engineering

2006-11-16 09:44:06 · 6 answers · asked by Anonymous in Earth Sciences & Geology

2006-11-16 09:43:55 · 2 answers · asked by asianchoc 1 in Chemistry

2006-11-16 09:43:10 · 10 answers · asked by manaman_273 1 in Astronomy & Space

2006-11-16 09:41:14 · 7 answers · asked by Seeker 4 in Physics

what is b plus 1 in algebraic expression?

2006-11-16 09:41:12 · 5 answers · asked by loli06pop 1 in Mathematics

2006-11-16 09:41:07 · 4 answers · asked by Joyce E 1 in Mathematics

My question is to solve

(cosx)^2 -1.2cosx-0.28=0

for "x" in the interval [0, 2pi].

I have gotten to a point, but seem to be stuck. I have done the quadratic formula and got the answers of:

cos x = 1.4 and cos x=-0.2

I then use the inverse functions and get

x=1.77215...
(I can not take the arc cos of 1.4)
but now I am stuck.

The question says to use the quadratic formula, inverse trig functions, and the symmetry of the unit circle.

There must be a step I am missing with the last part.
Can anyone point out to me what that is?
Thanks!

2006-11-16 09:40:32 · 3 answers · asked by Hi 1 in Mathematics

2006-11-16 09:40:05 · 10 answers · asked by Seeker 4 in Mathematics

What if the world would explode?

2006-11-16 09:37:38 · 8 answers · asked by pimpin_ed_92 2 in Astronomy & Space

2006-11-16 09:37:18 · 6 answers · asked by jokesrfunny101 1 in Biology

This equation:

25,000 + 150 + 3Q
---------------
Q

The answer is:

-25,000 + 3
_______

Q ^2


But how do you get there?

2006-11-16 09:36:11 · 1 answers · asked by Dave 6 in Mathematics

safe & natural storm,but not the destruction because i worked in the untility industry for 35 1/2 yrs as a repairman & i have seen what damage it can do.If you are told to evacuate then do so, dont stick around to watch the fireworks ...

2006-11-16 09:35:12 · 1 answers · asked by Anonymous in Weather

f^-1(x) = (x)^(1/2) - 3
D(0,oo)
R(-3,oo)

is this correct?

2006-11-16 09:33:17 · 1 answers · asked by shih rips 6 in Mathematics

2006-11-16 09:33:11 · 8 answers · asked by cherry l 1 in Zoology

On the Science channel I heard we will start making Nano-bots 20 years from now...Is it true?

2006-11-16 09:32:54 · 3 answers · asked by jkuraah 1 in Physics