Science & Mathematics - 4 January 2007

Biggest number gets best answer.

2007-01-04 04:00:36 · 12 answers · asked by mullah robertson 4 in Mathematics

Between two bodies, there is a point where the gravity tug from each is equal. Between the earth and moon this point lies within the earth's outer mantle. If I found this point inside a cave, would I observe formations like stalactities etc. reflect each passing of the moon?
http://groups.yahoo.com/group/caveguardian/

2007-01-04 04:00:03 · 3 answers · asked by CaveGoat 4 in Earth Sciences & Geology

....on the same point on earth.
Would he/she be reversed back in calendar date, by one day?

2007-01-04 03:59:10 · 11 answers · asked by Ishfaq A 3 in Earth Sciences & Geology

1) A radioactive substance loses 0.5% of its mass every year. Today-end 0f 2006 we have 24.5kg of this substance.
a) how much did we have at the begining of 2006?
b) how much did we have at the beginning of 2002?

2007-01-04 03:58:15 · 4 answers · asked by gabrielenebroski 3 in Mathematics

2007-01-04 03:55:26 · 8 answers · asked by jamie_93_94 2 in Astronomy & Space

1.A book with orignal price of 15 dollars has a 20% discount during the christmas holidays. How much does the book cost in Christmas?
2. A bank gives us an interest of 5% per year on the money we invest. If we invested 5500 dollars at the beginning of 2001, how much money will we have at the end of 2006?

2007-01-04 03:55:18 · 8 answers · asked by gabrielenebroski 3 in Mathematics

Ok, so I have this idea about infinity and its relationship with 0:

From hereon in, infinity will be referred to as INF.
From hereon in, any possible number will be referred to as x

x / INF = 0
x / 0 = INF
Therefore 0 * INF = x

0/INF = 0 * 1 / INF = 0 * 0 = 0
INF/0 = INF * 1 / 0 = INF * INF = INF

Also:
INF * x = INF
INF / x = INF
INF + x = INF
INF - x = INF

Just as:
0 * x = 0
0 / x = 0
0 + x = x
0 - x = -x

Also note that
x / INF = 0 * x
x / 0 = INF * x

Now, because x can be both positive and negative, let's say x is negative.

-x / INF = 0 (just as x / INF = 0)
-x / INF = x / -INF
Therefore, INF = -INF

It's a little cryptic, but I think you guys can get the gist...
What do you think?

2007-01-04 03:54:29 · 6 answers · asked by Simplex Spes 2 in Mathematics

Global warming sucks! Will we ever see real snow again in new england?

2007-01-04 03:53:41 · 3 answers · asked by Anonymous in Weather

a picture would be greatly appreciated, or even a link to where i could see one.....thanks!!

2007-01-04 03:52:19 · 2 answers · asked by -ToFu- 1 in Biology

2007-01-04 03:50:28 · 12 answers · asked by Clark Kent 1 in Physics

They speculate that it is a meteorite, and the FAA has confirmed that it's not from an airplane.

2007-01-04 03:49:26 · 4 answers · asked by MINKWOMAN 2 in Astronomy & Space

2. (a+2b)(2+b)-(2a+2b)(a-5)-3a^2-12b^2+2)=

3. 5x-7=7x-(3/2 -x)+

2007-01-04 03:49:05 · 9 answers · asked by gabrielenebroski 3 in Mathematics

Explain the following observations:

water evaporates more quickly on a hot dry day, than on a hot humid day

it takes longer to cook hard boiled eggs at high altitudes than at lower altitudes

2007-01-04 03:48:12 · 4 answers · asked by bosox1989 1 in Chemistry

Compounds like CCl2F2 are known as chlorofluorocarbons, or CFCs. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be less harmful to the environment. The heat of vapoization of CCl2F2 is 289J/g.

What mass of this substance must evaporate in order to freeze 100g of water initially at 18 degrees C?

Heat of fusion of water is 334 J/g and the specific heat of water is 4.18 J/g-K

2007-01-04 03:45:48 · 2 answers · asked by bosox1989 1 in Chemistry

Well, I know what it is. I just don't get why we need it. Why is it an essential need in chemistry?

2007-01-04 03:42:37 · 2 answers · asked by slsampl13 1 in Chemistry

2007-01-04 03:42:33 · 7 answers · asked by cheyenne 2 in Astronomy & Space

You saw the headlines....."a metal object/golfball size crashed thru a NJ roof"
Was it alien's from outter space throwing our garbage back at us?

2007-01-04 03:42:14 · 7 answers · asked by Auntie Marie SueB 3 in Astronomy & Space

1/(3x-1)sqaure root dx

2007-01-04 03:40:35 · 2 answers · asked by Anonymous in Mathematics

1.What is a gene in its simplest form?
A. a part of a protein
B. a segment of DNA
C. a looped portion of RNA
D. a molecule found in the endoplasmic reticulum

2.If DNA makes RNA, then what does RNA make?
A. DNA
B. RNA
C. proteins
D. new cells

3.Which of the following describes translation?
A. DNA makes RNA.
B. RNA makes proteins.
C. DNA makes proteins.
D. Proteins act in cells

2007-01-04 03:40:03 · 10 answers · asked by Anonymous in Biology

2007-01-04 03:37:38 · 1 answers · asked by London S 2 in Chemistry

i'm a student who has only started to learn about electronics recently. i tried searching about this online but the explanations are very confusing and difficult to understand for someone like me who has minimal background knowledge in elec.. please help
i am looking to understand Segmented DAC, Binary Weighted DAC, Pulse Width Modulator etc

2007-01-04 03:36:14 · 2 answers · asked by Anonymous in Engineering

Thanks for your answer...Tom Science 4

2007-01-04 03:36:12 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-04 03:34:15 · 7 answers · asked by JeanPierrePotvin 1 in Engineering

i'm doing a graph but when i type in 25% it doesn't show up and it changes by it self to 2500% so i want 2 know is that still accurate?

2007-01-04 03:32:38 · 5 answers · asked by Anonymous in Mathematics

I am doing a project on minimising the errors in fuel gauge.. There comes a lot of variation between practical and theoretical values. But in the calculation where theoretical values are obtained magnetic gauss value is not at all included.. Is it possible to include it somehow and minimise the difference between prac and theo values? Or is there any other way to approach this problem?

2007-01-04 03:29:06 · 1 answers · asked by karthi 1 in Engineering

This is a Std XII Maharshtra board curriculum problem

2007-01-04 03:25:28 · 2 answers · asked by Mathematishan 5 in Mathematics

2007-01-04 03:23:34 · 3 answers · asked by Chikk230 2 in Engineering

he is very ugly and looks gay as hell

2007-01-04 03:23:34 · 11 answers · asked by kelly 1 in Mathematics

2007-01-04 03:23:02 · 12 answers · asked by Anonymous in Medicine

Maybe stuff really can travel faster than light. Maybe time is only as we have developed standards to, such as hours or minutes?

2007-01-04 03:22:41 · 6 answers · asked by Michael n 2 in Astronomy & Space