Science & Mathematics - 19 October 2007

how do you solve this, cubic feet to cubic inches,
then cubic inches to cubic feet?

2007-10-19 03:37:56 · 9 answers · asked by trey 1 in Mathematics

If you have cos(wx+a)+sin(wx+a) then the period is 2pi/w
But if you have e^(bx)*(cos(wx+a)+ sin(wx+a)) is the period still 2pi/w? Looking at a graph of one, it seems to be, but I would like to know for sure.

2007-10-19 03:32:44 · 2 answers · asked by nemahknatut88 2 in Mathematics

2007-10-19 03:32:06 · 10 answers · asked by M 9 boobies 1 in Weather

Help me to solve this problem. "Calculate the ratio of gravitational force of the moon to the gravitational force of the earth, by taking the mass of the earth to be 6.0x10^24 kg , radius of earth as 6.4x10^6 m , the mass of the moon as 7.4x10^22 kg , and radius of the moon as 1.7x10^6 m. "

2007-10-19 03:32:04 · 4 answers · asked by nick heidfeld 1 in Astronomy & Space

2007-10-19 03:31:20 · 5 answers · asked by Pam 1 in Other - Science

2007-10-19 03:28:55 · 6 answers · asked by abraymond5 1 in Mathematics

I'm thinking that the estrogens are produced by follicles and corpus luteum, & can't figure out if progesterone is secreted by CLuteum, or also the FSH?
Please help clear this up.

2007-10-19 03:15:18 · 3 answers · asked by Radha Rani 2 in Medicine

2007-10-19 03:08:50 · 5 answers · asked by Anonymous in Mathematics

Ok so if this is true..
http://news.yahoo.com/s/livescience/20071019/sc_livescience/originofvisiondiscovered


Are they saying we mutated from 'Hydras' or how else did the gene's infect other species with this light sensing gene? sounds like a load of baloney to me..

2007-10-19 03:07:55 · 6 answers · asked by █ORal-K 2 in Biology

2007-10-19 03:00:56 · 3 answers · asked by SecretSam 2 in Engineering

My boyfriend brought up a quirky little question: When a person inhales a scent (good or bad), and they exhale, either through the nose or mouth, does that scent come back out and is then detectible, is it absorbed into the lining of the nose, or was only the air inhaled in the first place and the scent not really "inhaled?"

2007-10-19 02:48:40 · 6 answers · asked by Oregon2Texas 2 in Chemistry

2007-10-19 02:47:35 · 26 answers · asked by Anonymous in Earth Sciences & Geology

The length of a rectangle is 3 inches more than the width. If the area of the rectangle is 54 in. squared, find the length and width.

2007-10-19 02:47:29 · 6 answers · asked by Anonymous in Mathematics

A crate is given an initial speed if 3.0m/s up a 25 degrees plane. How far up the plane will it go? How much time elapses before it returns to its starting point? assume mu=0.17.

2007-10-19 02:46:16 · 2 answers · asked by Anonymous in Physics

2007-10-19 02:42:22 · 7 answers · asked by Tracy 1 in Astronomy & Space

the pentoses, ribose, deoxyribose form integral parts of

a. glycogen

b. hexose monomers

c. sucrose


d. RNA and DNA (I think this is correct but can't see pentose where pentose is invloved. HOW???)

2007-10-19 02:42:08 · 5 answers · asked by LJC 2 in Biology

For an eye to work , it needs all its part to come in function all at once , if even one single part is remaining then entire eye would die . But we still have our eyes working means everything must have had came in function all at onces rather then "evolving" over time.... how do you explain this?

2007-10-19 02:35:17 · 11 answers · asked by Acid 3 in Biology

2007-10-19 02:31:56 · 5 answers · asked by bossy1967 1 in Chemistry

I take cold water in my tea to cool it down a bit - because I don't drink milk. I've noticed that every time I add the water it splashes very high. But the second time I add the water from exactly the same height, it doesn't splash to anywhere near as high. This always strikes me as a bit strange... Is there some stored energy which exists in undisturbed water and its surface tension, and is released upon the first adding of water, but not the second? Perhaps such an effect could be used to harvest extra energy from free standing water, maybe to build a perpetual motion machine extracting energy from the oceans? Or perhaps the water surface has an intricate fractal energy field, and is an example of a fifth force of nature? There's definitely new physics here.

2007-10-19 02:26:24 · 2 answers · asked by David R 1 in Physics

I have searched and can't find the answer. I can get extra credit for this and time is running out!

2007-10-19 02:25:46 · 3 answers · asked by yenolat 1 in Physics

ATP and cyclic AMP are both nucleic acid monomers that contain sugar:

a. ribose

b. glucose (I think this is correct as it is converted to ATP molecules!)

c. deoxyribose

d. sucrose

2007-10-19 02:21:15 · 2 answers · asked by LJC 2 in Biology

2007-10-19 02:18:33 · 6 answers · asked by LuvPnk 1 in Astronomy & Space

2007-10-19 02:16:39 · 8 answers · asked by Anonymous in Mathematics

Manipulating genes? How much is too much?!?

We are closer than ever to answering many questions that have dogged thinkers for thousands of years, and many new queries that we've never even posed before.

Are all our cells identical...skin, bone, etc. Have you noticed on cop science shows that all our cells are identical on the DNA level???

If the skin and other cells are identical, what makes one cell skin and another one not?

Are you aware of the newest research in tiny cell controllers in the body that distinguishes a brain cell from a heart cell?

It's incredible what we are discovering in the 21st century!!! Are we on the road to more cloning? Or less?

What are the cutting edge issues in biological science?

2007-10-19 02:10:52 · 3 answers · asked by Anonymous in Biology

How do you know if they are when you bite them?

2007-10-19 02:02:45 · 4 answers · asked by Zachary B 2 in Chemistry

2007-10-19 01:57:37 · 3 answers · asked by whittykrw 1 in Engineering

what insects other than mosquitoes and bedbugs draw blood when you are bitten by one of them?

2007-10-19 01:57:07 · 12 answers · asked by dk5242 1 in Zoology

Simplify:

√3/√6 – 1 - √3/√6 + 1

Can someone please explain how to do this?

Thanks!

2007-10-19 01:55:47 · 11 answers · asked by Pete 1 in Mathematics

Microbes(germs)are a major part of evoultion but they also are the origins of diseases that kill. So how can something be significant to life if it can harm us. I came to the conclusion that all living things must die and germs is just another way for that process to happen, in order for life to start over again.

2007-10-19 01:46:37 · 7 answers · asked by H 1 in Biology

...integral from 0 to x^2 of g(t) dt, then f(x^3)=g(x^2) for all real x.
True or False?

Thanks!

2007-10-19 01:40:00 · 3 answers · asked by Anonymous in Mathematics