Science & Mathematics - 1 October 2006

Serious answers only, please

2006-10-01 13:09:20 · 4 answers · asked by Anonymous in Astronomy & Space

I found a pandora sphinx moth caterpillar and I want it to spin a cocoon. What does it need? Does it bury itself in the ground?

2006-10-01 13:07:50 · 4 answers · asked by chicky 2 in Zoology

2006-10-01 13:05:49 · 6 answers · asked by Anonymous in Mathematics

When it rains water falls on the ground and swallowed by the roots of a tree, but how does that water gets to the top of the tree?

2006-10-01 13:03:52 · 5 answers · asked by Anonymous in Biology

it would be a breakthrough if possible, we wouldn't need pathetic batteries anymore. you could have an electric station and beam electrons to various objects for operation- cars in particlar. woulnd tneed fossil fiels either.

2006-10-01 13:03:44 · 0 answers · asked by primordial_primate45 2 in Engineering

its multiple choice, but i need work or an explanation...

let f be a function defined as follows, where a does not = 0.

f(x)= (x^2 - a^2) / (x-a) for x does not equal a

f(x)=0 for x equals a

which of the following are true about f(x)?

1. limit as x goes to a exists
2. f(a) exists
3. f(x) is continuous at x=a

a. none
b. 1 only
c. 2 only
d. 1 and 2 only
e. 1, 2, and 3

2006-10-01 13:00:07 · 5 answers · asked by leksa27 2 in Mathematics

Ok. So there are a hundred lockers in a school. One hundred kids. The first kid comes and opens all the lockers. Then, a second kid closes every other one. Then a third kid changes every third locker. Like if it was open, you would close it, closed, you would open it... Then the fourth kid changes every fourth locker like the third kid only every fourth one. then the fifth kid cames and he changes every fifth one. Get it? Go on until you get to the hundreth kid. There are ten lockers open. Which ten lockers are open? Hint: one of them is the first locker. If you don't understand im me at katiekay@verizon.net. not jerry.

2006-10-01 12:59:41 · 5 answers · asked by Jerry Y 1 in Mathematics

2006-10-01 12:59:00 · 4 answers · asked by Anonymous in Chemistry

How fast & for how long would you need to spin a pint of water, in order to get it to boil ?

2006-10-01 12:57:13 · 11 answers · asked by THE ONE 1 in Chemistry

2006-10-01 12:55:55 · 8 answers · asked by brave x 1 in Astronomy & Space

[(1) - (25/x^2)] / [(1) - (8/x) + (15/x^2)]

the instructions are to "perform the indicated operations"
the answer is supposed to be:
(x+5)/(x-3)
I can't figure out how to get there.

2006-10-01 12:51:58 · 7 answers · asked by Anonymous in Mathematics

Just been viewing some of the Apollo landings footage...
There was a sequence where the craft took off from the moon,
and the camera on the buggy filmed it,
I saw a Flash of Flame coming from beneath the rocket as it seperated from the lander and went space wards.
If there is no air out in space, how can there be any sort of flash,
Anyone got a view on this

2006-10-01 12:49:30 · 7 answers · asked by GB123 2 in Astronomy & Space

2006-10-01 12:49:06 · 12 answers · asked by tom science 4 in Botany

2006-10-01 12:47:37 · 3 answers · asked by Anonymous in Other - Science

2006-10-01 12:45:42 · 8 answers · asked by Anonymous in Mathematics

2006-10-01 12:45:06 · 9 answers · asked by w_explorer 1 in Biology

A space traveller loked down at the Earth and said "Hey, there's a hell of a lot of squabbling going on down there, maybe we should visit some other time when it's peaceful?" His co-pilot said "Maybe you're right. What date should I put in the diary?".

2006-10-01 12:44:45 · 9 answers · asked by Anonymous in Astronomy & Space

I once had a t-shirt that read: Better living through chemistry -
C H O Co La Te (numbers 6,1,8,27,57,52 on the periodic table respectively). Got any other good ones to share? Come on and make it a game. The best one gets 10 points ;)

Ok, I know this isn't exactly a chemistry question, but I know you all have a better chance at knowing the periodic table and you have a unique sense of humor.

2006-10-01 12:41:34 · 5 answers · asked by Anonymous in Chemistry

hurricane

2006-10-01 12:40:15 · 18 answers · asked by Anonymous in Weather

2006-10-01 12:37:45 · 9 answers · asked by sharon g 1 in Earth Sciences & Geology

If Dalllas had 1120 cases at the start of the epidimic ,with an increase of 27% per week, how many cases would be reported in Dallas after 4 weeks of the epidimic?

2006-10-01 12:36:41 · 18 answers · asked by pink princess 1 in Mathematics

I'm not ashamed that my origin is monkey.I'm not better than monkeys. many people knew it even before Darwin.
There are also scientific research & proofs that some readers of this question can provide you in
their answers. What do you think ?

2006-10-01 12:34:38 · 11 answers · asked by opal 1 in Biology

What is a commutator? My friends have said something about it but I'm not really understanding it.

2006-10-01 12:34:02 · 12 answers · asked by Chris 2 in Other - Science

i want to build a radio capable of powering itself using the radio waves it recieves
how can i harnes this power?

2006-10-01 12:33:43 · 9 answers · asked by Anonymous in Engineering

2006-10-01 12:33:32 · 1 answers · asked by meleena t 1 in Physics

A spy satellite is in circular orbit around Earth. It makes one revolution in 6.03 hours. (Radius of the Earth=6.371 106 m)

(a) How high above Earth's surface is the satellite?

(b) What is the satellite's acceleration?


Without the correct asnwer to part A, i cannot get part b done.

The equation we were given is

r (height) = (G Me / w^2) ^1/3

i guess the question i have is, how to find w.
i took the gravitational constant of the earth, the mass of the earth, but the w (angular acceleration?) i cannot figure out.

thanks for the help.

2006-10-01 12:27:07 · 2 answers · asked by robtrink 1 in Physics

2006-10-01 12:25:25 · 6 answers · asked by Philidor 5 in Geography

The airplane is traveling 900km/h in a direction 38.5 degree west of north.
The answer is north is 704 km/h and west is 560 km/h.
Please can u show me how to solve for it

2006-10-01 12:22:17 · 2 answers · asked by TehEagle 1 in Physics

Can someone plz help me with this. Im not sure if you supposta set up 2 equations or what to do.

A ball is thrown up at an initial speed of 25 m/s at the same time a ball is dropped from rest at height of 15 m. How long does it take for the balls to be at the same height?

2006-10-01 12:19:45 · 3 answers · asked by MellyMel 4 in Physics

2006-10-01 12:19:27 · 7 answers · asked by Kate 1 in Other - Science