Science & Mathematics - 10 October 2006

2006-10-10 07:15:49 · 4 answers · asked by The Apostle 2 in Engineering

Light can be concentrated in to bright spot by using a lens.ie,light is 'intensified'.Similarly, is it possible to concentrate heat energy, say, by using a "thermal lens"?

2006-10-10 07:15:24 · 6 answers · asked by Sasry.S.M M 3 in Physics

For instance, in the theory of relativity where E=mc2, How is E measured. Let's say mc2 = 10 (just a made up number here). That would be 10 what? I can't just say 10 units of energy.

I'm a noob in Physics, so forgive me if this is a dumb question.

2006-10-10 07:11:06 · 2 answers · asked by James G 1 in Physics

2006-10-10 07:09:17 · 6 answers · asked by prettyqbee07 1 in Botany

2006-10-10 07:09:09 · 6 answers · asked by Young 1 in Astronomy & Space

2006-10-10 07:08:58 · 4 answers · asked by Pseudo Obscure 6 in Other - Science

Also, are you a physics student, a professional physicist, or just an average person with an interest in physics. (Not that you're average person has an interest in physics mind you) ;)

2006-10-10 07:08:30 · 4 answers · asked by Link 5 in Physics

2006-10-10 07:08:22 · 1 answers · asked by Hafizan M 2 in Chemistry

One
One One
Two One
One Two One One
One One One Two Two One

what is next line?

2006-10-10 07:07:49 · 14 answers · asked by Diggler AKA The Cab Driver 1 in Mathematics

If eons ago the moon compressed out of dust and was captured by the earth's orbit after some explosion somewhere, how did something so chaotic develop into such a precise configuration?

If you were in charge of calculating how to make a moon hit the orbit of a planet with exactly the right spin on it so that it always has the same side facing the planet, the parameters would be very specific. How can nature have done that?

With other operations that are so specific, like mutations in evolution, there are billions of iterations that bring precise configurations, but with the moon there was only one shot.

2006-10-10 07:07:10 · 6 answers · asked by Jeremy 2 in Astronomy & Space

nvolving the selection of two students from a committee of students. Assume that the committee is made up of 2 males and 5 females. Two are selected at random, and a random variable X is defined to be the number of males selected.

How many different values are possible for the random variable X?

it is 3

PART 2:

Fill in the table below to complete the probability density function. Be certain to list the values of X in ascending order.

Value of XProbability
0
1
2

i have no idea how to find prob of the values of x help please

2006-10-10 07:06:04 · 3 answers · asked by Diggler AKA The Cab Driver 1 in Mathematics

I keep getting the wrong answer. Will someone please work this.

Thanks :-)

2006-10-10 07:03:59 · 8 answers · asked by Shara Z 1 in Mathematics

my co-worker posed this problem to me.... she can't seem to solve it (and I dont remember how to solve it. We have the answer, which is 35....its for GMAT Prep...PLEASE HELP!!!

2006-10-10 06:57:30 · 3 answers · asked by Tamika H 1 in Mathematics

2006-10-10 06:56:46 · 8 answers · asked by Jasoda T 1 in Mathematics

2006-10-10 06:53:58 · 7 answers · asked by Red Falcon 1 in Astronomy & Space

2006-10-10 06:51:13 · 16 answers · asked by Eragon Shadeslayer 1 in Other - Science

The scales they use too weigh it.

Not intellectual, I agree, but I got an headache thinking of the other way.

2006-10-10 06:50:40 · 15 answers · asked by GB123 2 in Astronomy & Space

I live in Wisconsin, and it is supposed to snow this week. I don't think I'm ready for snow. I hate the cold. I wish I could move south. Oh well.

2006-10-10 06:48:39 · 15 answers · asked by lillibellemichele 2 in Weather

2006-10-10 06:48:08 · 7 answers · asked by puddin 2 in Astronomy & Space

log_{5} x + log_{5} (x+4) = log_{5} 3

They are all Log base 5

2006-10-10 06:47:33 · 6 answers · asked by pnoiz1 2 in Mathematics

Can fertilization occur in Uterus.?

2006-10-10 06:47:12 · 3 answers · asked by Stellar K 1 in Zoology

I can't find anywhere that says the name of the disease, just that it was a long and painful death.

2006-10-10 06:44:33 · 2 answers · asked by mslorikoch 5 in Astronomy & Space

2006-10-10 06:42:20 · 8 answers · asked by Red Falcon 1 in Engineering

maybe i dont understand what a negative charge is

2006-10-10 06:40:01 · 6 answers · asked by Anonymous in Physics

Can anyone actually explain to me how this mathematics question was does as I had it in an engineering test but couldn't do it:
You need to determain whether the length of copper a copper rod oven will expand by more than 2% of the original length when heated. Information you have suggests that heating to 1500 degrees C, will not result in greater expansion the the required 2%.
1)Is this information correct?
2) If not, what is the maximum temperature the rod can be heated to in order to stay within the expansion limits?
The information you have is:
The equation relating original length 'I*o' and length 'l' at temperature 't'.
l= l*o(1+at) 'a' is the coefficient of linear expansion, and 't' is the temperature.
Values given are 'I*o' = 0.250m, 'a'= 1.7× 10 to the power -5.

I would appreciate any help with this question as a question similar will come up on my JAR 66 aerospace engineering licence.

Thanks

2006-10-10 06:39:40 · 4 answers · asked by louie_ellis 1 in Mathematics

I'm a civil engineering student,I like civil eng very much, but I think that civil eng will be affected by the lack of terrains in a future.WHAT DO YOU THINK????we WILL HAVE TERRAINS TO CONSTRUCT?????

2006-10-10 06:38:20 · 3 answers · asked by The Apostle 2 in Engineering

I'm going to be there the 22nd to the 27th. Any ideas what the weather's like, and what I should pack? I know the pools are heated and all that already. I was thinking mostly taking shorts and tees. Should I take more than 1 ea. of sweatshirt and jeans? We've already got everything planned out, and I know I don't need anything dressy.

2006-10-10 06:35:50 · 5 answers · asked by Cheyenne 5 in Weather

2006-10-10 06:34:28 · 4 answers · asked by Anonymous in Chemistry

6 times 4^2x-3 = 37




Thank you.

2006-10-10 06:31:37 · 5 answers · asked by pnoiz1 2 in Mathematics

i need books by elaine marieb, jackson and jackson and others please help.

2006-10-10 06:31:26 · 5 answers · asked by bazza 1 in Biology