Science & Mathematics - 7 August 2007

2007-08-07 18:09:52 · 6 answers · asked by Rhoddie S 1 in Mathematics

In other words, what is preventing us from removing any shadow of a doubt regarding it such that we can drop the word 'theory' from the equation?

2007-08-07 18:09:25 · 6 answers · asked by whitehorse456 5 in Physics

2007-08-07 18:05:54 · 9 answers · asked by hi 1 in Biology

How long does it take for the seed to sprout the fruit or veggie?

2007-08-07 18:05:49 · 6 answers · asked by Anonymous in Botany

2007-08-07 18:02:24 · 11 answers · asked by robins7t 1 in Astronomy & Space

Olive oil helps us absorb lycopene from tomatoes, but will fish oil help absorb lycopene from V8?

2007-08-07 17:58:34 · 2 answers · asked by isuckatphysics 2 in Biology

Midpoint formula in math

2007-08-07 17:57:49 · 5 answers · asked by Anonymous in Mathematics

if the solarheater is in good coundition

2007-08-07 17:55:19 · 1 answers · asked by ns v 1 in Physics

2007-08-07 17:50:56 · 5 answers · asked by Anonymous in Zoology

If rotating black holes slow down and/or start to decay will the outside universe rip them apart to create a mini big bang.?

2007-08-07 17:48:55 · 7 answers · asked by Anonymous in Astronomy & Space

A calorimeter contained 75g of water at 16.95C. A 93g sample of iron at 65.58C was placed in it, giving a final temperature of 19.68C for the system. Calculate the heat capacity for the calorimeter. Specific heats are 4.184 for water and 0.444 for Fe.
The answer is suppose to be 381J/C but I dnt know how it was derived, can anyone explain the answer?

2007-08-07 17:43:50 · 1 answers · asked by Mr S 2 in Chemistry

how does..

[ln (e - 1 + 1)] / [(e-1) +1] = 1/e ..? what cancels out and how or why..?

also, how do you go from...
[1/t + 1] / [2(ln t + t)^1/2]

to... [1+t] / 2t (ln t + t)^1/2 ..?

2007-08-07 17:42:59 · 2 answers · asked by mma 1 in Mathematics

Would you expect to find an oak thicket anywhere in Wyoming?

2007-08-07 17:42:17 · 2 answers · asked by Fisher 3 in Botany

This is a geometrical probability problem

2007-08-07 17:38:15 · 9 answers · asked by Anonymous in Mathematics

2007-08-07 17:35:23 · 11 answers · asked by >D_ConTradictor< 4 in Physics

2007-08-07 17:34:54 · 8 answers · asked by Niranjana S 2 in Earth Sciences & Geology

I believe in the bible, but I also believe in evolution. And yes, you can believe in both even though one often contradicts the other. But anyway, what are the best explanations for how everything was created. Serious answers only! No dumba**es please!!

2007-08-07 17:31:36 · 8 answers · asked by ZdE 2 in Astronomy & Space

2007-08-07 17:28:09 · 6 answers · asked by kenny m 1 in Earth Sciences & Geology

2007-08-07 17:26:13 · 4 answers · asked by sarita r 1 in Medicine

Mine is Jim Cantore, yours?

2007-08-07 17:25:27 · 6 answers · asked by Anonymous in Weather

2007-08-07 17:21:16 · 6 answers · asked by Anonymous in Weather

2007-08-07 17:20:50 · 2 answers · asked by sarita r 1 in Medicine

[A rectangular storage container with an open top is to have a volume of 10 m3. The length of its base is twice the width. Material for the base costs $10 per sq meter. Material for the sides costs $6 per sq meter. find the cost of materials for the cheapest such container. Note: you need to minimize the total cost, NOT the total amount of material used]

ok..i am a mess.

2007-08-07 17:11:58 · 2 answers · asked by gabjew90 1 in Mathematics

2007-08-07 17:09:49 · 3 answers · asked by Anonymous in Botany

2007-08-07 17:08:37 · 13 answers · asked by Anonymous in Zoology

2007-08-07 17:08:08 · 4 answers · asked by jrels2 2 in Biology

I know no one 5730 years ago decided to conduct this experiment so how is a half life determined. I'd love a confidence interval.

2007-08-07 17:06:09 · 6 answers · asked by Anonymous in Earth Sciences & Geology

Alright. I've been trying to figure this out for years. I'm hoping to gain some insight into this unique number.
Let me set it up.
Take a number, any number (4 digits is good, because so is the number I'm going to be working with, but it works with any).
I'll use 2349 (picked at random).
Now, because the number is positive, we'll subtract. We are going to subtract the digits in opposite order. So:
2349-9432 = -7053
Now that the number is negative, we will ADD the digits in opposite order. We'll continue to do this until we notice a pattern. Bear with me.
-7053 + 3507 = -3546
-3546 + 6453 = 2907
2907 - 7092 = -4185 (etc, let me just give you the answers now that you know the process)
1629, -7632, -5265, 360, 279, -495, 99, 0
That's my point. When this process is used, nearly every number imaginable goes to 0. Try it yourself!

EXCEPT 2178 and it's derivatives:
2178, -6534, -2178(!!), 6534, 2178(!!)

Do you see what I mean? Does that make sense?
Can anyone fill me in on why it's unique?

2007-08-07 17:04:10 · 8 answers · asked by Takkuso 3 in Mathematics

Please help!?
A blue car with a mass of mcar = 2000 kg and a yellow truck with mass mtruck = 9000 kg enter an intersection. The truck comes from the south at vtruck = 7 m/s, and the car comes from the west. When the two collide they stick together and slide at an angle of q = 43° north of east.

What is the speed of the pair after the collision?

2007-08-07 17:03:36 · 4 answers · asked by Anonymous in Physics

I darkly remember an article about a company which builds electric motors which run fine even when you "drown" them in water, with anchors and everything being perfectly friendly with the element.

Does anybody know anything about that?

Thanks.

2007-08-07 17:02:35 · 3 answers · asked by Tahini Classic 7 in Physics