Science & Mathematics - 12 December 2006

2006-12-12 06:10:29 · 8 answers · asked by Anonymous in Earth Sciences & Geology

2006-12-12 06:07:22 · 2 answers · asked by Ashlee 1 in Earth Sciences & Geology

An amazing thing happened. I just turned 28 and was bored at the bookstore browsing the math section. I picked up a book promising clear explanations and to demystify mathematics. In college I took upto Multivariate Calculus and admit that all of it was a mystery-I basically memorized paterns to finish out the problems (about C level performance). I didn't really understand what it all was or how it could be used. In my older years I am starting to develope a strong interest in hard sciences. Topics that are tangible and quantitaive are increasingly catching my interest. I'm really interested in time and physics and math seems to be the tool of the trade. Not wanting to fork out the cash or spending the time to do college all over again, how can I best pursue a personal study of mathematics? There seem to be many topics and paths in the field-which path (from bottom to top so to speak) is best? Would someone with more experience make an outilne for this along with some suggestions?

2006-12-12 06:06:58 · 5 answers · asked by jennifer_weisz 5 in Mathematics

please show step by step solution

2006-12-12 06:06:10 · 6 answers · asked by Marian H 1 in Mathematics

Hi!
My question goes as follows: In the QRS complex, normally one has an A-like shape, being q, r, and s wave.

When the R wave gets to its peak, just right in the middle, what does it mean?
does it mean that HALF myocardium is de-polarized? or does it mean something else?

i have search everywhere with no luck, only to obtain the same
answers, being q wave the negative deflection, r the positve and s again negative, but i havent found what im looking for...

any thoughts?? thanks in advance...
PS: If you have the URL source i'll really appreciated.
and the same question goes for the upward and downward braches of the R wave (above baseline)

atte xeonrebel or rickhunter

2006-12-12 06:04:43 · 4 answers · asked by rick hunter 1 in Medicine

2006-12-12 06:02:36 · 4 answers · asked by goku 1 in Engineering

2006-12-12 06:02:00 · 6 answers · asked by amandaholes19 2 in Earth Sciences & Geology

2006-12-12 06:02:00 · 8 answers · asked by afenn08 1 in Astronomy & Space

2006-12-12 06:01:20 · 3 answers · asked by aly 1 in Biology

The quotient of a number and 3 is the same as the difference of the number doubled and 5. What is the number?

2006-12-12 06:00:53 · 5 answers · asked by JJS 1 in Mathematics

1) through (6,3) and (5,2)
2)through (-6,-2) and (5,-3)

show how you did it too, i am trying to figure this stuff out.
thanks!

2006-12-12 06:00:11 · 4 answers · asked by dont h 1 in Mathematics

2006-12-12 05:58:09 · 4 answers · asked by Anonymous in Engineering

2006-12-12 05:57:56 · 6 answers · asked by lilballerina2004 1 in Chemistry

which is a insect, crustaceans or an arachinds

2006-12-12 05:55:32 · 2 answers · asked by kekeb2cool4u 1 in Zoology

2006-12-12 05:55:21 · 2 answers · asked by Anonymous in Engineering

A glass contains 0.25kg of water at 0.0.15kg of ice,also at 0 .is added to the water and it is noticed that after 11 min. all the ice hasw melted and all the water is now 15.Assuming that the thermal capacity of the glass may be ignored.

2006-12-12 05:52:57 · 2 answers · asked by candice m 1 in Physics

do you know anyone with them??
do you find them hot?

2006-12-12 05:51:37 · 3 answers · asked by jlynn2315 2 in Biology

It seems mathematically impossible for time to not have a beginning since you can't have infinity plus one. In other words, it would be impossible to ever get to this point in time if infinity is behind us.

2006-12-12 05:50:43 · 7 answers · asked by mikearion 4 in Physics

the name on the medication is Merrell with the number 547 under the name, it is white in color and larger in size than an aspirin

2006-12-12 05:50:30 · 8 answers · asked by jake52 1 in Medicine

Ok I have a series-parallel circuit. I know that:
V(T) = 60 V
I(T) = 2 A
V(R2) = 30 V
R(3) = 30 Ohms

I have to find

V(R3)
R(2)
R(1)

Now I find V(R3) I think by doing the following:

V(R3) = V(T) - V(R2)
V(R3) = 60 V - 30 V
V(R3) = 30 V

If that is correct please... I beg you... Help me Find:

R(2)
R(1)

In that order. Please. I'm dying here! I have till tomarrow to do this... or i'm in TROUBLE... if you know what I mean. And If please don't leave mean or rude comments. If you don't know that's cool. But I'm in need of some serious help here. I would post a diagram, but I can't do that on here but I can tell you that there are 3 resistors. Imagine a square box. Now make a line down the middle. Now put in a resistor on the right side of the box. now put another on the bottom right side. now put one on the line that divides the box in half. now on the left side is the voltage. I hope this help... Ok I'm going to shut up now.

Thank you deeply for any help you can provide me.

2006-12-12 05:49:47 · 6 answers · asked by ? 2 in Physics

The distance from first to second is 90ft. The catcher throws the ball from home to second. How far did he throw?

2006-12-12 05:49:28 · 8 answers · asked by chris102188 2 in Mathematics

2006-12-12 05:48:49 · 3 answers · asked by Bob the Cat.™ 4 in Zoology

In base 10, an integer is divisible by 3 if the sum of its digits is divisible by 3. Why is this true?

I've been giving it some thought, and I figure that it's because the remainder of 10 divided by 3 is 1, which acts as a sort of counting mechanism. Along these lines, I suspect that an integer is divisible by a prime digit p if the sum of its digits (as expressed in base b) is divisible by p, AND if the base b is one more than some multiple of p.

But it's been an awfully long time since I've done this sort of thing, and I'd love to know if I'm on the right track here (and why).

2006-12-12 05:47:29 · 3 answers · asked by sylvar 2 in Mathematics

2006-12-12 05:47:11 · 24 answers · asked by Anonymous in Astronomy & Space

2006-12-12 05:46:28 · 3 answers · asked by c.c 1 in Geography

I was watching a TV programme, last night on Discovery Science, called 'Universe', and it was discussing the origins of the universe. They said that before the big bang there was nothing, no matter and no time. Suddenly there was an explosion of energy (a reaction of nothing with other nothingness, perhaps?), and the process of the big bang began.

Don't you think that the idea of energy being created from nothing takes as much of a leap of faith as believing in creationism?

Bear in mind, I actually air on the side of science in most cases; for example, I believe in evolution. I just can't see the logic in something coming from nothing.

2006-12-12 05:45:55 · 11 answers · asked by Anonymous in Physics

Just for fun... I was wondering what some of you thought about this prospect.

2006-12-12 05:41:49 · 18 answers · asked by L80bug 2 in Other - Alternative

No subjective answers please. I want history. Where in the heck did these people come from?

2006-12-12 05:37:58 · 9 answers · asked by Anonymous in Astronomy & Space

I do not know how to solve by elimination and need to figure this problem out -_-

2006-12-12 05:37:50 · 7 answers · asked by deus_ex_machina314 1 in Mathematics

The length of one leg of a right triangle is 3/4 of the length of the other leg. If the length of the hypotenuse is 15 inches, find the area of such triangle. How do I set up this problem?

2006-12-12 05:37:33 · 8 answers · asked by rowriter 1 in Mathematics