Science & Mathematics - 23 October 2007

2007-10-23 02:16:17 · 2 answers · asked by medlockprice 1 in Biology

There are many theories that try to explain how the universe began. Is there any solid evidence that the universe had a beginning? Is it right to assume that everything had a beginning just as the small things on earth have a beginning?

2007-10-23 02:15:01 · 11 answers · asked by Mr Man 2 in Astronomy & Space

2007-10-23 02:14:50 · 1 answers · asked by Anonymous in Physics

can someone simplify this expression for me ,, with steps please!!

cos^2 (2x) - sin^2 (2x)

2007-10-23 02:07:54 · 5 answers · asked by Labuuu* 1 in Mathematics

Hi creo scientist here, I will ask this question again as i never end up with a testable hypothesis i can work on and present for people

What proof would could an evolutionist be presented with to make them evolution may not be true.

I ask this question as the burden of proof rests on the creation scientist shoulders.

So we should not hassle you, unitl we have something to show you

As we belive that dino's existed post flood, and slowly died out pre flood

our hypothesis is:

If we were able to present a lizard, that grew to the size of lets say a velocoraptor, by subjecting it to pre-flood world conditions, would you accept that as partial evidence for dino's co-existing with man, and that dino's were still around not so long ago

also if we could present you with dragon flies, like the ones you claim are 300 million years old, they types with wing spans over 20 inches by subjecting them to a biosphere based on old world conditions

would that be counted as credible evidence?

2007-10-23 02:01:48 · 8 answers · asked by Anonymous in Biology

There doesn't seem to be a lot out there about this. I know it's in development, but I'm wondering if there is a current timeline (one that wasn't created 5 years ago) that is thought to bear some resemblance to reality.

Will we land by 2015 or 2020? I've seen both dates. I would think 2015 would be doable, but my guess is they will just take their time. It's a shame, because China, Japan and India are all racing up there now. I wish we could have the same fire in the belly as we had in the 1960s. The race is much bigger, and much more important now.

2007-10-23 01:56:14 · 5 answers · asked by Anonymous in Astronomy & Space

Do you remember a past life (lives)?

2007-10-23 01:55:47 · 8 answers · asked by Kimberlee Ann 5 in Parapsychology

2007-10-23 01:50:16 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-10-23 01:49:00 · 13 answers · asked by Anonymous in Astronomy & Space

To accomplish this idea the force made by one team while pulling the rope is measured by a spring sensor. This data is sent to a motor or actuator on the other side in order to respond accordingly: to pull if the data received is bigger than the force currently made by the team or to push otherwise. The same process is followed for the other team.
Do you know a spring scale whose output can be read by a computer and a motor / actuator that can be controlled by a computer (and according to the readings given by the spring scale)?

2007-10-23 01:43:31 · 1 answers · asked by Javier L 1 in Engineering

What constitutes high and low barometric pressure?

2007-10-23 01:42:48 · 4 answers · asked by mcguimt1 1 in Weather

what three elements in school are kept under oil ?

what is the reaction of water and caesium

2007-10-23 01:41:00 · 9 answers · asked by Anonymous in Chemistry

2007-10-23 01:37:07 · 5 answers · asked by Anonymous in Biology

2007-10-23 01:34:23 · 3 answers · asked by Anonymous in Engineering

2007-10-23 01:32:12 · 8 answers · asked by niceymath 1 in Mathematics

I am planning to use 10e-7 F capacitor. And I want t high and t low of 1 sec each. That means a duty cycle of 50%. I check many websites. They only provide the equations to calculate. They never show the working. Since R1 << R2, when I calculate I got R1 to be 0. It is wrong. Please provide the working also. Thanks

2007-10-23 01:28:45 · 5 answers · asked by curious 3 in Engineering

How many years later the date is shown exactly as is shown in the calender, if the date in the wrist watch is not changed at the end of the months i.e feb, april, june, sept and nov.

2007-10-23 01:28:04 · 2 answers · asked by Anonymous in Mathematics

does the moon have its own gravity?
is there an altitude that i can reach and start feeling the gravity of the moon pulling me toward the moon?
If the moon have its own gravity is it of the same force as the gravity of the earth or is it lesser or greater?

2007-10-23 01:26:59 · 13 answers · asked by Omar 1 in Astronomy & Space

what are the reasons there are different carbon atoms, such as alpha and beta carbons? are there different names for carbons with different no. of bonds?

the alpha carbon is the carbon immediately after the carbon attached to the functional group, and the beta carbon is the one after the alpha carbon.. what abt the one after the beta C?

2007-10-23 01:26:31 · 2 answers · asked by nobodyknowsme™ 5 in Chemistry

2007-10-23 01:23:07 · 4 answers · asked by hootameyer 1 in Mathematics

2007-10-23 01:22:05 · 2 answers · asked by niceymath 1 in Chemistry

I once cashed a cheque at the bank. I had spent just one rupee from the amount before I realised the bank clerk had made a mistake. He had transposed the rupees with the paise. I now had exactly twice the value of the original cheque. What was the original cheques's value?
the answer is Rs.32.66
How did they come up with that, what's the trick in the problem and also what equations are to be used.
I Rs. = 100 paise.
thanks.

2007-10-23 01:14:09 · 2 answers · asked by No Picture 2 in Mathematics

2007-10-23 00:57:09 · 6 answers · asked by green 4 in Mathematics

2007-10-23 00:53:22 · 15 answers · asked by atom45 4 in Earth Sciences & Geology

what is the surface of the planet like?
what is the atmosphere of the planet like ?

2007-10-23 00:52:24 · 3 answers · asked by mz_cricket48 1 in Astronomy & Space

2007-10-23 00:48:11 · 33 answers · asked by loving boy 3 in Astronomy & Space

If so, did they look exactly the same but with legs? A walking blue whale must have been quite a sight- do we know what they looked like, are there any artists' impressions on the net? Thanks!

2007-10-23 00:46:01 · 23 answers · asked by Anonymous in Zoology

Roy has a mass of 60kg. Laurie has a mass of 65kg. they are 1.5m apart.
a) what is the magnitude of the gravitational force of the earth on Roy?
b)what is the magnitude of Roy's gravitational force on the earth?
c)what is the magnitude of the gravitational force between Roy and Laurie?
d)what is the magnitude of the gravitational force between Laurie and the sun?

i would be happy if some1 could just walk me thru it by showing steps. thank you.

2007-10-23 00:38:36 · 2 answers · asked by Anonymous in Physics

Please show me how to do the calculation step by step, or using ms excel also step by step. Thank you.

2007-10-23 00:35:22 · 27 answers · asked by Mame 1 in Mathematics

Q: Which components of the eye have a structural function?
A: sclera, suspensory ligaments, vitreous humour

my question: why?? how are they 'structural'?

2007-10-23 00:29:51 · 3 answers · asked by Anonymous in Biology