Science & Mathematics - 2 February 2007

If you have an integral of some function (f(x) where F'(x)=f(x)) over interval [a,b] where a=b then aren't you not taking the integral? Isn't that just like what the fucnction should be? Isn't it just the line segmint at a to F(a)? So I am unsure whether or not the integral would be zero. You have no width on your area but you have height (excluding F(a)=0). Am I confusing the idea of the added constant with the integral itself or am I just really confused? Is that integral always zero because your height is one (or zero) dimentional, and the integral is a 2-D quantity?

2007-02-02 05:28:12 · 1 answers · asked by Michael M 4 in Mathematics

2007-02-02 05:24:51 · 1 answers · asked by Joel A 1 in Weather

I understand that moss prefers humid and shady conditions. It is clear why moss will thrive in shady conditions but I don't understand why it thrives in shady conditions. Surely, the more light exposed to moss, the faster it will photosynthesise, and the more abundant it will be..so why would the moss want to grow in an area with less light?
Can anyone give a helping hand please? Any references will be greatly appreciated!

2007-02-02 05:24:09 · 8 answers · asked by ah1 1 in Botany

I am not sure if it is possible to do, but I was wondering if it is. A ball at rest begins rolling down a ramp at uniform acceleration. In the second 5 seconds (time 5

2007-02-02 05:24:07 · 2 answers · asked by Anonymous in Physics

Obviously, every cell in your body doesn't die simultaneously when the ability to have consciousness is lost. How long does it really take for all your cells--brain cells in particular--to die?

2007-02-02 05:23:16 · 2 answers · asked by Rachel 410 2 in Biology

2007-02-02 05:21:42 · 15 answers · asked by Anonymous in Mathematics

2007-02-02 05:21:31 · 2 answers · asked by Janifer P 1 in Geography

5 is a leg and 10 is a leg and 5squareroot5 is the hypotenuse

2007-02-02 05:21:20 · 6 answers · asked by M 1 in Mathematics

Are there any health risks when working with this fungi?

2007-02-02 05:20:48 · 4 answers · asked by Anonymous in Botany

I am planning an out door party next weekend on the 10th. I checked the extended forecast yesterday and it said partly cloudy now this morning it has showers for both Saturday and Sunday. How accurate could this be?

2007-02-02 05:19:08 · 4 answers · asked by concern1 2 in Weather

But instead of the core changing size like normal, it didnt change?

a)The Sun’s core would start to cool down and the rate of fusion would decrease.

b)The Sun’s core would reach a new equilibrium at a lower temperature.

c)The Sun’s core would reach a new equilibrium at a higher temperature.

d)The Sun’s core would start to heat up and the rate of fusion would increase even more.

2007-02-02 05:17:27 · 5 answers · asked by Jason G 1 in Astronomy & Space

Based on the fact that a gallon of liquid weighs 8lbs, and we are extracting millions of barrels of oil from the earth everyday that must weigh thousands of gallons, so it can be suggested that the earths rotation will eventually be affected by it's removal.

2007-02-02 05:17:25 · 6 answers · asked by Anonymous in Earth Sciences & Geology

Find the arc length from (-3,4) clockwise to (4,3) along the circle
x^(2) + y^(2) = 25. Show that the result is one-fourth the circumference of the circle.

2007-02-02 05:17:08 · 4 answers · asked by Anonymous in Engineering

What kinds of senses do snails have?

2007-02-02 05:15:57 · 3 answers · asked by Link 5 in Zoology

Have to show your work... I have the answers but need the equations to get me there.

2007-02-02 05:15:14 · 4 answers · asked by Anonymous in Mathematics

2007-02-02 05:15:07 · 2 answers · asked by AmandaLynne 1 in Medicine

2007-02-02 05:14:42 · 3 answers · asked by Anonymous in Physics

6 is a leg
x is the hypotenuse
and the triangle is a 45 degree and a 90 degree triangle

2007-02-02 05:13:43 · 9 answers · asked by M 1 in Mathematics

2007-02-02 05:12:51 · 3 answers · asked by antiquisima 1 in Weather

2007-02-02 05:11:35 · 0 answers · asked by Anonymous in Astronomy & Space

thanks

2007-02-02 05:08:28 · 5 answers · asked by billa42000 1 in Mathematics

2007-02-02 05:08:13 · 18 answers · asked by mbtafan 3 in Biology

Are the Aborigines surviving Neanderthals?
I'm not trying to be racist it's a serious question I studied their history and they arrived in Austrailia 40,000 years ago and the Neanderthals didn't die off in Europe until 24,000 years ago. They look identical to Neanderthal pictures and I kind of feel like if scientists new their was a connection they wouldn't make it public to avoid hurting feelings. I mean their is documented proof of the existence of neanderthal/homo sapien hybrids so it is likely that their is a known connection. Aboriginals didn't arrive in Austrailia by boat secondly recent research shows that Neanderthals went extinct by interbreeding with the larger Modern Human population but Austrailia was seperated from the rest of the World. Furthermore recent DNA research shows that Neanderthals were a subspecies of Homo Sapiens and not a seperate species at all.

2007-02-02 05:05:40 · 3 answers · asked by Anonymous in Biology

Would you store stem cells from your child to guard against future disease?

2007-02-02 05:04:41 · 7 answers · asked by ♥Enya♥ 4 in Medicine

This is the questions : 1) the water that drips into the test tube is pure water , how can you describe away from testing it ?
2) what is left in the boiling tube at the end of the experiment ?
3) This is the process that is called distillation ?

2007-02-02 05:04:17 · 4 answers · asked by Hindu_ Latina 3 in Chemistry

2007-02-02 05:02:08 · 3 answers · asked by lord_andys_new_id 1 in Mathematics

2007-02-02 05:01:55 · 4 answers · asked by Enrique P 1 in Medicine

2007-02-02 05:01:12 · 14 answers · asked by Anonymous in Astronomy & Space

8,10,12

2007-02-02 05:00:18 · 11 answers · asked by M 1 in Mathematics

2007-02-02 04:57:30 · 13 answers · asked by aj_izmixedlyk3gumbo 4 in Biology