Science & Mathematics - 22 August 2007

i think that a Mammal dolphin is the name of the animal.. where as a dolphin fish is a kind of fish who is righthere and do i make myself clear?

2007-08-22 08:48:46 · 10 answers · asked by betafishj 1 in Zoology

2007-08-22 08:48:33 · 1 answers · asked by deannahndrsn 2 in Physics

So, carnon based life is bascily life that has flesh, heart bones(well most) and organs? and none carbon based life is like robots and things that has not been created natrually

2007-08-22 08:46:59 · 12 answers · asked by John 1 in Biology

2007-08-22 08:45:08 · 7 answers · asked by Anonymous in Earth Sciences & Geology

How can people say that ghosts are a load of rubbish and say God is real. People have seen ghosts but who has seen God.

2007-08-22 08:41:19 · 21 answers · asked by sam 2 in Other - Alternative

I thought they might be for car sickness?

2007-08-22 08:39:05 · 19 answers · asked by Phil O 1 in Engineering

I am so lost.

Rational Expressions: SOLVE:

z-6/z+7 = 5/7

The problem above is in fraction form.

2007-08-22 08:34:59 · 6 answers · asked by Anonymous in Mathematics

There really isn't a category for this but there should be one for R/C aircraft. I have the micro helicopters and am considering making the blades.

It's a simple matter to reproduce the angle and cover it with the vinyl material for this purpose.

They make carbon composite blades for strength and lightness. They also make blades out of balsa because it's light and cheap. I'm considering using a hardwood. Considering how well that terns out as a start, the balsa wood is pretty cheap to buy. Basically, one has to have a table saw and router to create this little blades. I think the extra weight of the hardwood won't keep it from getting off the ground.

I'm wondering about altering the design. What I'm thinking of doing, is making the blades shorter so that they have less lift and the response will be slower and less prone to over-flying, just for learning.

I believe that if I made the blades wider and/or longer, it would be more for the motor to turn.

2007-08-22 08:32:26 · 4 answers · asked by rann_georgia 7 in Engineering

2007-08-22 08:30:50 · 8 answers · asked by Anonymous in Physics

y=x^2

y= sqrt x

y=(1/x)

y=| x |

y=x^3

2007-08-22 08:30:49 · 6 answers · asked by Anonymous in Mathematics

OK, so I have realized how long it has been since Algerbra 101 and have been asked how to solve the following. W+3/4 = -5/7..Any assistance is greatly appreciated on how do I do thwese type of problems.

Thanks,
Randy

2007-08-22 08:26:46 · 7 answers · asked by Anonymous in Mathematics

2007-08-22 08:25:12 · 13 answers · asked by Anonymous in Zoology

2007-08-22 08:24:13 · 4 answers · asked by deannahndrsn 2 in Mathematics

2007-08-22 08:23:02 · 6 answers · asked by nimrod3316 1 in Physics

2007-08-22 08:22:59 · 5 answers · asked by Anonymous in Zoology

A 15 Tonnes boat is about to go through a deep aqueduct which can stand the weight of 20 cube meter of fresh water. The aqueduct is already 74% of its weight capacity with the water it supports..

what happens when the boat stand above the aqueduct ?
A. The aqueduct collapse under the weight
B The aqueduct is OK and the boat goes through
C The boat get stuck

The first one to provide the right answer gets his 4 stars rating but please provide justification for your answer

2007-08-22 08:22:08 · 11 answers · asked by Anonymous in Engineering

like the precedure to reveal fingerprints

2007-08-22 08:22:04 · 2 answers · asked by sadimani 1 in Chemistry

2007-08-22 08:19:03 · 5 answers · asked by Alexander 6 in Physics

Im wondering weather anyone has read any papers or journals relating to the apparent equality of ape(human) / dolphin brains

2007-08-22 08:18:50 · 1 answers · asked by Anonymous in Biology

I been thinking if these volume formulas are correct.
volume of a cube and Rectangular prism: Length* Width* Height

volume of a pyramid general formula: area of the base* height* 1/3 as a fraction.
volume of a pyramid with a rectangular base: length of base* width of base* height (of the pyramid) * 1/3 as a fraction.

can u also explain as simplist as u can the volume of a sphere, cone, cylinder, and a triangular prism? thanks a lot guys! :)

2007-08-22 08:17:18 · 11 answers · asked by . 4 in Mathematics

And what direction does the earth revolve around the sun?
And what causes this rotations.

2007-08-22 08:15:57 · 16 answers · asked by Rick G 4 in Astronomy & Space

I'm taking multivariable calculus and the prof didn't teach us how to use this function and it is not described in my textbook but it appears in one of the homework problems where it gives a short description before the actual problem where it gives a symbol like "[" (without the bottom line on the bracket) "is a gamma function" what is this and how do I evaluate this function?
I will post this question on the math forum as well.

2007-08-22 08:12:50 · 3 answers · asked by claire_is_my_name 3 in Physics

PLEASE explain how air fires can create molten metal in an
oxygen starved environment (open air, 101.3 kPa)

http://www.youtube.com/watch?v=Qa7PN-8T2VY

Also consider the important questions at:

http://answers.yahoo.com/question/index?qid=20070821154616AAqOpIO&r=w

and

http://answers.yahoo.com/question/index?qid=20070821070257AAUAhWC&r=w

Apparantly, some very dumb people on TV (even some here)
want us all to believe that air fires can melt steel, and totally
weaken giant buildings to the point of complete collapse,
even causing unburned, undamaged, unheated structural
beams (not exposed to fire) to fail and turn into molten metal.


FACTS:

Melting point of steel = 1532 C

Temperature of air fire fed by hydrocarbon fuel (even jet fuel
which is highly refined kerosene) = 250 C

(due to limited available oxygen in 1 atm or 1 Bar or 101.3 kPa
open air)

Do not bother answering this post unless you have an
explanation for the molten metal evidence.

2007-08-22 08:12:36 · 7 answers · asked by Anonymous in Engineering

Thank you for the answers before, but I don't know the way how to get to the solution.

2007-08-22 08:12:15 · 5 answers · asked by Anonymous in Mathematics

2007-08-22 08:07:28 · 2 answers · asked by Monkey Man 3 in Physics

and does it really exist ?

2007-08-22 08:06:51 · 7 answers · asked by kevthekat 2 in Biology

if it were possible would you want to, just to see what it was like?

if you were just hangin around in a spacesuit, getting pulled in, would you want to know where it leads to? if anywhere at all? or would you not prefer that terror?

2007-08-22 08:06:46 · 12 answers · asked by ? 2 in Astronomy & Space

I was just wondering if the person that it happened to still knows or feels what has happened to them after decapitation and for how long.


And, How is it possible to tell?

2007-08-22 08:04:38 · 44 answers · asked by 2BaD4u 4 in Biology

Which number looks good with a name and soundgood.

2007-08-22 08:02:43 · 7 answers · asked by Anonymous in Mathematics

I found a couple of fossils in Nova Scotia and I would like to know what they are...can u help?

this is the front of the fossil: http://i13.tinypic.com/538ktfo.jpg

this is the back: http://i11.tinypic.com/4zedeyq.jpg

2007-08-22 08:02:05 · 3 answers · asked by Samuel B 1 in Biology