Science & Mathematics - 27 December 2007

2007-12-27 19:23:38 · 17 answers · asked by Sheila A 1 in Mathematics

2007-12-27 19:12:19 · 22 answers · asked by Sheila A 1 in Mathematics

On your way, your distance from A to B gets cut in half, then in half again, then in half again, then in half again. It keeps getting cut in half an infinite number of times until the halves become microscopic. But no matter how small it becomes, the distance that you have remaining from where you are to where you want to be (point B) can still be cut in half again. Do you ever really get to point B or is there just too many halfway points to cross that you never really get there?

2007-12-27 19:00:28 · 10 answers · asked by pickupman546237 1 in Mathematics

a survey in a certain locality reveals that the probability of a man dying after the age of 0.6 and the probability of a woman dying after the age of 60 is 0.5. if a couple comes from this locality, what is the probability that:

a) both will die before the age of 60?

b) either will die after 60?

2007-12-27 18:56:40 · 3 answers · asked by stelzii 1 in Mathematics

sin(x+pi/6)-sin(x-pi/6)=1/2

2007-12-27 18:52:56 · 4 answers · asked by Anonymous in Mathematics

2007-12-27 18:44:24 · 11 answers · asked by Sheila A 1 in Mathematics

2007-12-27 18:21:06 · 9 answers · asked by annaaa 2 in Weather

2007-12-27 18:15:00 · 7 answers · asked by divya jain 2 in Physics

given that g(x) = | 4-x |

find the range of g if its domain is
-3

2007-12-27 18:08:48 · 7 answers · asked by hani 1 in Mathematics

What book would you recommend for an interested, moderately intelligent non-scientist? I'm looking for something at about the level of Einstein's 'Relativity', that gives a comprehensive summary of the theory without becoming either too simplistic or too complicated.

Thanks!

2007-12-27 18:05:00 · 6 answers · asked by John K 3 in Physics

Australia is known to have it’s interior covered by sea in it’s geological past. Is there anything stopping this happening again?

2007-12-27 17:56:51 · 2 answers · asked by ASK A.S. 5 in Earth Sciences & Geology

Antarctica is known to have been covered in lash vegetation in the earth geological past. Is this likely to happen again? Is the tectonic plate in which Antarctica lies, moving currently, if so which direction?

2007-12-27 17:56:17 · 4 answers · asked by ASK A.S. 5 in Earth Sciences & Geology

Out of the following groups of animals, which ones are increasing in number(of species and individuals) and which are decreasing?

1. Mammals
2. Fish
3. Birds
4. insects
5. Nocturnal animals
6. reptiles

2007-12-27 17:54:43 · 2 answers · asked by ASK A.S. 5 in Zoology

F = Max

if the mass of the universe is infinite
and the universe is accelerating ax > 0
F = c * ∞
Then the force causing it is ∞ N too


So ∞ J of work must be done also

but this is impossible since nothing can be infinite


Therefore, the mass of the universe must be finite.

so it is either finite or it is infinite with mostly empty space?



Does this work????

2007-12-27 17:54:28 · 2 answers · asked by Anonymous in Physics

What are the advantages and disadvantages of a species mating for life and what are the advantages and disadvantages of a species mating with different individuals each breeding seasons?

2007-12-27 17:53:43 · 1 answers · asked by ASK A.S. 5 in Zoology

http://en.wikipedia.org/wiki/Xenoglossy

2007-12-27 17:53:06 · 9 answers · asked by Deenie 6 in Paranormal Phenomena

Are there any web sites that have a GOOD description of Australia through different periods in the earth geological history?

2007-12-27 17:51:26 · 1 answers · asked by ASK A.S. 5 in Earth Sciences & Geology

Can any body tell me how to calculate Gauss coeff. for external field contribution....Plzzzz....or Please let me know where I can get the procedure.....!!!

Thanks in advance....

2007-12-27 17:44:26 · 1 answers · asked by preity 1 in Earth Sciences & Geology

When I watch nature shows, sometimes the narrator says that certain animals such as cockroaches and sharks have stayed relatively the same for thousands for years.

Isn't natural selection and evolution supposed to be a fierce competition with an animal's prey and predators? Is it understood how they gained such a large advantage (that they could stay that way for thousands of years) if each few generation is supposed to be the tiniest of changes?

Note, I am not one of those crazy religious fundies. I would like to know what is the most supported explanation

2007-12-27 17:40:24 · 6 answers · asked by Moo 5 in Zoology

Celestron PowerSeeker 50.

I know nothing about telescopes....so anything would help.
Thanks!

2007-12-27 17:35:34 · 8 answers · asked by shystar2005 3 in Astronomy & Space

Nate measures the mass of the sodium bicarbonate and observe that it weighs less than before. He exclaims, " Mark! Some of the powder has disappeared!" Mark has learnt a lot form his grade 8 Science lessons and explains that the powder has not disappeared.

1. What law does Mark refer his explanation to Nate?

2, What do you think Mark has said in his explanation?

2007-12-27 17:34:30 · 4 answers · asked by Anonymous in Chemistry

hi guys..got serius assignment to finish off.. and i really dono how to start..may i know where to get simple designs and instructions???

2007-12-27 17:33:14 · 2 answers · asked by akvijay_matrix 1 in Physics

eg, transmitting a song and all radios tuned into 500mhz through to 800mhz will pick it up....??

I understand how to transmit 1 frequency with the oscillator.

2007-12-27 17:33:02 · 2 answers · asked by Anonymous in Physics

I know that it relieves your symptoms. . .but does it hurt your overall health?

2007-12-27 17:29:50 · 8 answers · asked by Anonymous in Medicine

2007-12-27 17:29:14 · 1 answers · asked by Robby 1 in Weather

2007-12-27 17:29:05 · 6 answers · asked by Furiouscurious 1 in Astronomy & Space

seriously.

2007-12-27 17:23:52 · 17 answers · asked by floraclarafreya 2 in Mathematics

a.less than its mass on mars
bmore than its mass on mars
c the same as its weight on the moon
d none of the above

2007-12-27 17:14:09 · 12 answers · asked by nickki 2 in Astronomy & Space

2007-12-27 17:11:53 · 4 answers · asked by STUDY 3 in Mathematics

I've got a large bag of M&Ms, large enough that the supply can be considered infinite. Furthermore, I'll assume that all six colors I observe are in the same quantity. If I take 3 M&Ms from the bag, what is the probability that two, and only two, M&Ms are the same color? What is your reasoning?

2007-12-27 17:10:33 · 9 answers · asked by Tech Dude 5 in Mathematics