Science & Mathematics - 28 November 2007

Out of all the roosters I have,one crows all night long.plus all day long.Little does he know that boiling water will tenderize him good enough to add dumplings with.Why do roosters crow in the first place?

2007-11-28 18:55:04 · 6 answers · asked by American_Dago 3 in Zoology

Consider x = h(y,z) as a parametrized surface Φ(y,z) in the natural way. Write the equation of the tangent plane to the surface at the point (2, 2, 0) [with the coefficient of x being 1] given that
∂h/∂y(2,0) = -5 and ∂h/∂z (2,0) = 0.


_____________ = 0

Any help would be great! Answer and explanation of the steps to the answer. Thanks

2007-11-28 18:54:33 · 1 answers · asked by dizayfashizay 2 in Mathematics

2007-11-28 18:43:35 · 5 answers · asked by . 2 in Biology

Find an equation of the tangent plane to the parametric surface
x = 4rcosθ, y = -5rsinθ, z = r, at the point (4sqrt(2), -5sqrt(2), 2 when r = 2, θ = pi/2.

z = __________

Note: Your answer should be an expression of x and y; e.g. "3x - 4y"

Stuck... hope you can show me the answer and the steps how you got there.

Thanks

2007-11-28 18:39:32 · 1 answers · asked by dizayfashizay 2 in Mathematics

Its a project for my class but i am having a tough time...

Please help!!!


What I am asking is to reword this phrase by using other words that would convey the same meaning...

The phrase is this>>>> "The Real Thing"

HELPHELPHELPHELP

2007-11-28 18:39:31 · 4 answers · asked by a100 1 in Mathematics

please explain in an easily understandable way. thanks!

2007-11-28 18:33:11 · 5 answers · asked by stop global warming!!! 1 in Physics

2007-11-28 18:32:01 · 6 answers · asked by Anonymous in Zoology

Iam not talking about films but science....

ths for your reply

2007-11-28 18:24:16 · 1 answers · asked by 5 bambole per laluna d´Augusto 2 in Zoology

I'm looking for a specific term.

2007-11-28 18:21:37 · 2 answers · asked by miSsNC 2 in Biology

5x+3y=12
3y=-5x+3

2007-11-28 18:18:58 · 6 answers · asked by joe78521 2 in Mathematics

has anyone tried this websites program? is it good? its an ebook teaching telekinesis. by matt adams.

2007-11-28 18:17:33 · 11 answers · asked by Anonymous in Parapsychology

if so how

2007-11-28 18:11:41 · 7 answers · asked by Anonymous in Physics

How many inches does it have to snow to cancel school
It just snowed like 1 1/2 inches

2007-11-28 18:11:04 · 7 answers · asked by Lisa101 2 in Weather

I went to ti.com but I'm not tech savvy so I dont know what category to search under. Is it a data converter, DSP, microcontroller? I don't even know what these are.

Help?

2007-11-28 18:10:03 · 1 answers · asked by whosit? 2 in Engineering

2007-11-28 18:08:48 · 6 answers · asked by junas 1 in Paranormal Phenomena

I'm writing a paper for class and I'd like to know from all you botany buffs out there - are plant seeds pre-disposed to be one sex or the other? In my opinion, seed pre-disposition means that the seed will have one stronger chromosome than the other. In other words, a plant will have both chromosomes, but either the male or female chromosome will be dominant, with the other dormant?
If we don't agree that seeds are pre-disposed, then what does this leave? This leaves a-sexuality, and hermaphroditism. Hermaphroditism is when both chromosomes are of equal dominance in the plant. It is also presently believed that the hermaphrodite 'gene' is stronger than either just male or female on it's own (this info' came from a breeder, i haven't checked it out). Can a plant be born a-sexual? Can it determine its sex by the environment?

So what say you in the great debate of nature vs nurture, oh mighty botanist? Maybe there's no debate.. I don't know.

2007-11-28 18:00:21 · 1 answers · asked by XB1212 2 in Botany

Why doesn't this year have a leap year?
http://www.timeanddate.com/calendar/index.html?year=2100&country=1
I thought every year divisible by 4 had a 02/29.

2007-11-28 17:55:30 · 6 answers · asked by nemahknatut88 2 in Astronomy & Space

Can you please list 3 ways that minerals form and what happens during the process

Ty for hellping =Þ

2007-11-28 17:51:12 · 3 answers · asked by Anonymous in Earth Sciences & Geology

I need help answering this question for my biology class. It invloves photosynthesis.

2007-11-28 17:51:07 · 1 answers · asked by Anonymous in Biology

Ok, I've had ALOT of very different kinds of animals (cats, dogs, birds, monkeys, etc.). And it seems like every time there is a full moon, they act weird. Like, they start whining and get restless and acting...well, crazy. What's the deal?

2007-11-28 17:50:33 · 3 answers · asked by texasjeepgirl1987 2 in Zoology

2007-11-28 17:48:53 · 8 answers · asked by joe l 1 in Chemistry

x^3+x^2+2x+6...

I am tired and yet I am still lost with this problem... I have tried to work it 3 different ways and still can not figure it out??? can someone help me please ......

2007-11-28 17:45:29 · 5 answers · asked by Anonymous in Mathematics

do the aliens present ........... where do they live

2007-11-28 17:41:45 · 10 answers · asked by Anonymous in Astronomy & Space

2007-11-28 17:34:56 · 1 answers · asked by Mangesh N 1 in Chemistry

Velocity, mass, angle, acceleration, ect....

2007-11-28 17:33:09 · 1 answers · asked by Michaela G 1 in Physics

1 final question... and I am going to sleep.... factoring issues ... I am locked after this one section.... of the problem...

x^4+2x^3-3x-6 - problem

This is what I have so far and then I for some reason get stuck...

x(x^3+2x^3-3-6) (step 1)
x(X^3+2x^2-9) (step 2) - now I am stuck.... blaaaah!!!!

what am I missing because I surely can't figure it out...

2007-11-28 17:26:16 · 4 answers · asked by aunt24 1 in Mathematics

2007-11-28 17:22:17 · 10 answers · asked by Anonymous in Mathematics

what does creation say about DNA and what does evolution say about DNA???

2007-11-28 17:21:55 · 8 answers · asked by Anonymous in Biology

2007-11-28 17:16:23 · 7 answers · asked by wolfstone 1 in Engineering

Given the following information:

Selling price per unit = $10
Variable Cost per unit = $7
Plant capacity = 125,000 units
Sales demand = 80,000 units
Profit = $90,000

TOTAL FIXED COSTS is equal to:
_______?

It is multiple choice, but I'd like to leave out the answers , to make sure the provided answers are arrived at, without simply choosing an random provided answer, and trying to "make it fit".
Please show your rational for your answer.

THANK YOU!

2007-11-28 17:10:26 · 3 answers · asked by mikeburman11 1 in Mathematics