Science & Mathematics - 23 December 2007

Can 1667 benefical mutations over 5 million yrs of man's so-called development explain ALL the uniquely human adaptions including, tripling the brain size, upright posture, hand dexerity, vocal cords to name a few? Remember 1- Paleontologist say the majority of a species existence is spent in stasis! 2- According to geneticist a "substitution" is typically ONE-NUCLEOTIDE. Walter James Remine's "Biotic Massage book agrees with Haldane's cost calculations. Evolutionary geneticist including John Maynard-Smith agree that "Punctuated Equilbrium" is NOT the answer. The Neutral theory is NOT the answer as Walter ReMine predicts. Therefore should Evolution/Abiogenesis continue to be taught in schools as an empirical science? Or provided a "walling-wall" and cathedral and taught as a religion? Or abandoned as a "Harry Potter-like fable?

2007-12-23 08:23:55 · 8 answers · asked by Archie P 1 in Biology

will the bullet leave the atmosphere, burn up in the atmosphere, or come back down and nail me if i shoot up exactly straight?

- i saw movies where people shoot up in the air, and i just wanna know waht would happen in real life

2007-12-23 08:22:25 · 25 answers · asked by uwillnomyname 4 in Physics

Do you believe in evolution? I do because I think science is more accurate than faith. Give me your opinion.

2007-12-23 08:00:40 · 14 answers · asked by Anonymous in Biology

this seems like a simple question...most people would answer "by newton's third law"...however, consider this:
an object is traveling at a velocity of 5m/s at a solid brick wall. The acceleration of the ball is 0 and thus, the ball is moving w/ a force of 0 N (F = ma = 0m = 0). obviously, the ball will bounce back off of the brick wall, but this cannot be caused by newtons third law can it??--there is no action force to cause a reaction force in the opposite direction...when the ball collides into the wall, there is no force pushing it, so how can there be a force pushing the ball backwards?

2007-12-23 07:59:43 · 19 answers · asked by Hi 2 in Physics

Well in shcool I remember learning that the color you see, like green from grass is actualy the reflection of light that is not absorbed by the grass,and that is why you see red after looking at a green dot for 5 min.

So does that mean that grass is actualy red?

2007-12-23 07:58:19 · 18 answers · asked by Connor H 1 in Botany

2007-12-23 07:45:08 · 12 answers · asked by CAN777 1 in Physics

Is this plausible:
Our solar system is located near the center of a finite distribution of galaxies. Although this cannot be proven for certain at present, it is fully consistent with the evidence; so it is a reasonable possibility.In that case, the earth would be in a gravitational well. This term means that it would require energy to pull something away from our position into deeper space. In this gravitational well, we would not feel any extra gravity, nonetheless time would flow more slowly on earth (or anywhere in our solar system) than in other places of the universe. This effect is thought to be very small today; however, it may have been much stronger in the past. (If the universe is expanding as most astronomers believe, then physics demands that such effects would have been stronger when the universe was smaller). This being the case, clocks on earth would have ticked much more slowly than clocks in deep space. Thus, light from the most distant galaxies would arrive on earth!

2007-12-23 07:42:16 · 11 answers · asked by Stannnn 3 in Physics

1. What is 9% of 30?

2. What is 25% of 312?

3. What percent of 9 is 3?

4. What percent of 3 is 9?

5. A car dealer makes an 8% commission on each car she sells. How much does she make on a $40,000 sale?

6. During a telephone survey, 320 people, or 25% of those called, said they were listening to the same station at the time of the call. How many people were called?

2007-12-23 07:41:39 · 6 answers · asked by Anonymous in Mathematics

i am makeing a small fire work and i would like to no the ration of copper sulfate to gunpowder. If you no anything about this you no that copper sulfate makes the fire turn green. I dont have alot of black powder but if you could tell me the ratio i should use as to not runin the powder with two
much or not enough and have a regualr fire. Pardon my spelling i am in a hurry.

2007-12-23 07:40:05 · 1 answers · asked by Anonymous in Chemistry

There are two slides at the park between which you are deciding. Both start at a height of 6 m. One is short and steep while the other is long and shallow. If both slides are frictionless, which one should you choose if you want to be moving as fast as possible at the bottom? Why?

2007-12-23 07:36:24 · 7 answers · asked by tragiclove430 1 in Physics

1. 3x^2 - 2y^4 + 3xy^2
a. 1
b. 2
c. 3
d. 4

2. 4x^2y
a. 1
b. 2
c. 3
d. 4

2007-12-23 07:31:29 · 7 answers · asked by Anonymous in Mathematics

It MUST travel a distance of 4 meters.
It can not be taller than 19 inches.
It can not be longer than 14 inches.
Please help! With as much detail as possible!

2007-12-23 07:18:26 · 1 answers · asked by alexpurrsaid 1 in Physics

Heres the situation:
at Walmart a package of steaks that weighs 3.47 lbs. is originally $5.22 per pound, which means that original price is $18.11 for the package of steaks. A customer want to do a price comparison with a price from a competitor. The new price is $2.47 per pound. How much should the steaks cost now?

2007-12-23 07:16:56 · 3 answers · asked by Jenny 3 in Mathematics

Prove that:

Int (limits a,0) f(x) dx = Int (limits a,0) f(a-x) dx

a is the top limit, 0 is the bottom limit.

I know this is true but how is the proof written... thanks.

2007-12-23 07:13:26 · 3 answers · asked by ndavos 2 in Mathematics

Once they approached the subject with an open mind.
I'm talking about people with a grasp of the laws of Newtonian physics, nothing fancy, just being familiar with the agreed laws of physics and mechanics.
By the way, what was the Popular Mechanics thing about? I read it, and was bemused that its physical sophistry was so clumsy.

2007-12-23 07:11:20 · 10 answers · asked by hog b 6 in Engineering

y = e^x +2

the answer is y = ln x - 2 but how do you get the answer and work it out?

2007-12-23 07:09:31 · 6 answers · asked by sharizzle 1 in Mathematics

And do they both provide structure and support? I think only starch functions in structure and support, not glycogen. But I'm not 100% sure... what do you think?

2007-12-23 07:08:51 · 3 answers · asked by Anonymous in Chemistry

I want to do something with paranormal as a living, but i don't know exactly what... and what would I major in?

I'm going to be going to Southern Illinois Unviersity..

2007-12-23 07:04:08 · 10 answers · asked by Anonymous in Paranormal Phenomena

in trees, what happens when all their leaves fall and they dont have any means of carrying photosynthesis? do some plants completely die?

2007-12-23 07:03:05 · 7 answers · asked by Anonymous in Botany

Please watch the film and comment.
http://www.youtube.com/watch?v=cTLy5YwaPAg

Thank you

2007-12-23 06:58:21 · 2 answers · asked by nooru 3 in Biology

2007-12-23 06:57:14 · 6 answers · asked by skymeyer2012 1 in Chemistry

A circle has a centre (-1,4) and radius √12. A line is drawn through point P (4,6) so that it touches the circle C at point T. Show that PT=√20

Thank you!

2007-12-23 06:53:34 · 4 answers · asked by Anonymous in Mathematics

2007-12-23 06:49:40 · 5 answers · asked by blue_eyed_woman_23 3 in Mathematics

2007-12-23 06:48:56 · 4 answers · asked by blue_eyed_woman_23 3 in Mathematics

2007-12-23 06:48:10 · 4 answers · asked by blue_eyed_woman_23 3 in Mathematics

2007-12-23 06:44:42 · 3 answers · asked by blue_eyed_woman_23 3 in Mathematics

2007-12-23 06:43:50 · 1 answers · asked by blue_eyed_woman_23 3 in Mathematics

When you look at the information on a photon the image is only visible from the front...What does the back/sides of the photon look like?

2007-12-23 06:43:21 · 3 answers · asked by Java Junkie 1 in Physics

2007-12-23 06:43:20 · 3 answers · asked by Kit Kat 1 in Mathematics

A solid cube of radium is floating in deep space. Each edge of the cube is 1km in length. An astronaut is protected from its radiation if she remains at least 1km from the nearest spec of radium including the interior of the cube. What is the volume (in cubic km) of space that is forbidden to the astronaut?

We've concluded that:
-The shape can't be a sphere nor a cube
-The shape does not have vertices
-The corners are arced so that she remains exactly 1km from the radium
-The distance from arc to arc is 3km

We have some idea of what it looks like, but do not know how to calculate the volume. Any suggestions would be EXTREMELY helpful. :)

2007-12-23 06:42:07 · 4 answers · asked by Anonymous in Mathematics