Science & Mathematics - 4 November 2006

My dear daughter believes that there are some fish without any tails. I believe that to be called a fish, it must have a tail.

Who is right? Ice-cream is riding on this!

Thanks,

Cris

2006-11-04 11:28:43 · 3 answers · asked by Cris 3 in Zoology

a.organisms are continuing to evolve
b.the sun is getting hotter.
c.excess atmospheric carbon dioxide might be trapping the sun's heat.
d.the ozone layer is thickening.

2006-11-04 11:25:28 · 11 answers · asked by Anonymous in Earth Sciences & Geology

what do covalent bond,molecule,nucleus,diffusion mean??

2006-11-04 11:23:22 · 4 answers · asked by jouliette 1 in Chemistry

How is salinity related to how salt is more dense than regualr water? Thanks in advance! :)

2006-11-04 11:22:53 · 2 answers · asked by Aanchi11 2 in Chemistry

2006-11-04 11:16:54 · 1 answers · asked by ? 1 in Biology

2006-11-04 11:15:18 · 3 answers · asked by Sherri D 1 in Earth Sciences & Geology

2006-11-04 11:13:43 · 3 answers · asked by Prasanna 1 in Physics

was one of the worst earthquakes ever

2006-11-04 11:13:32 · 2 answers · asked by tallywacker 1 in Geography

here is the question word for word along with answer choices. Keep in mind i already know the answer is letter b i just need to know how i get there.

An Olympic skier moving at 20m/s down a 30.0 degree slope encounters a region of wet snow and slides 145m before coming to a halt. What is the coefficient of friction between the skis and the snow?

a. 0.540 c. 0.116
b. 0.740 d. 0.470

So far with this problem i have found delta T and acceleration but i'm stuck.

2006-11-04 11:13:07 · 2 answers · asked by strawberrylollipop12345 1 in Physics

Can you tell me where to look in the sky to see the Big Dipper?
I live in Maine on the 45th parraral.
What time in the evening, durning this time of year, would the Big Dipper become visible to me?
Thanks.

2006-11-04 11:07:52 · 6 answers · asked by dennispatterson58 1 in Astronomy & Space

2006-11-04 11:07:06 · 17 answers · asked by george g 1 in Zoology

What are the restrictions to mailing unorthodox materials into the US? Its for personal use, but is some what expensive.

2006-11-04 11:06:23 · 6 answers · asked by wikyd 1 in Medicine

guys, i really hate math but i guess i need to deal with it right?!?! please help me im confused..>> answer this please>
5x+10-6x+3=6-2x-2 answer please and explaine

2006-11-04 11:01:42 · 11 answers · asked by chinita 2 in Mathematics

Mules are produced by the mating of a female horse and a male donkey. Mules are sterile and cannot produce offspring. Do you think a horse, and a donkey should be considered the same species? Why or why not?

2006-11-04 10:59:37 · 11 answers · asked by Nerds Rule! 6 in Biology

Hello.

I am studying about Nuclear Energy, and relating it to CANDU reactors. I am having a hard time understanding the process within these CANDU reactors. IF anybody who knows about this reaction, or is an expert in the field, please give me a simplified explanation of the system, involving the uses of fuel rods, heavy water, normal,water, and control rods.

Thanks for reading.

2006-11-04 10:55:26 · 4 answers · asked by Xeel 1 in Physics

If power costs, 8.0 cents/MJ, the cost(to the nearest dollar) to operate a 1500 W heater for 20 minutes a day for 300 days would be what amount of money?

2006-11-04 10:54:09 · 4 answers · asked by Kameliya 2 in Physics

2006-11-04 10:52:13 · 9 answers · asked by Anonymous in Mathematics

especially concerning faults, folds, joints, unconformity

2006-11-04 10:51:48 · 3 answers · asked by remy k 1 in Earth Sciences & Geology

50N applied force is being pushed down on a 100kg block at an unknown angle (x). The coefficient of friction between the block and the ground is 0.4. regardless of the angle being used, what is the maximum elevation angle that will allow the 50N applied force to move the block? (image http://img296.imageshack.us/img296/7071/imagejq5.png)

2006-11-04 10:51:25 · 3 answers · asked by Anonymous in Physics

2006-11-04 10:51:18 · 9 answers · asked by Dot 2 in Zoology

Find the perimeter and the area of the triangle with the given vertices. Round to the nearest tenth.?
A (2,1)
B (3,6)
C (6,1)

2006-11-04 10:50:42 · 5 answers · asked by Anonymous in Mathematics

If anyone is willing to help me, let me know and I'll post the problems I need help in. I'm desparate.

2006-11-04 10:49:50 · 11 answers · asked by ajriskus 2 in Mathematics

2006-11-04 10:49:18 · 2 answers · asked by Barbara R 1 in Mathematics

2006-11-04 10:44:33 · 12 answers · asked by GrayFox64 5 in Astronomy & Space

Expecially how to change hexidecimal to decimal.

2006-11-04 10:42:39 · 9 answers · asked by y0ger_19 4 in Mathematics

compute the value of the discriminant and give the number of real solutions to the quadraic equation

5x^2+x+2=0

2006-11-04 10:42:21 · 2 answers · asked by Anonymous in Mathematics

i extrmely confused now...how do ppl no what DNA luks like and how viruses luk like?...is it even visible under the microscope?....
and are atoms now visible under the microscope?....

2006-11-04 10:38:55 · 3 answers · asked by no name 1 in Biology

I'm failing chem., and finals are next week.

2006-11-04 10:34:33 · 5 answers · asked by Preston08 2 in Chemistry

length x , side of the triangle
answer is 2 pix / SR 3 .pls explain

SR: square root

2006-11-04 10:33:59 · 4 answers · asked by zenith 1 in Mathematics

2006-11-04 10:33:17 · 2 answers · asked by oomarr 1 in Engineering