Science & Mathematics - 10 October 2007

Pull a swing or pendulum to one side, let it go and it will swing back and forth by itself. As it goes back and forth the swing is conserving:

a) angular and linear momentum
b) only angular momentum
c) only linear momentum
d) neither angular momentum nor linear momentum

2007-10-10 16:32:04 · 3 answers · asked by ? 6 in Physics

2007-10-10 16:31:38 · 3 answers · asked by Anonymous in Physics

If you look through the many years,and the sitings that have been reported, do you think that UFO's do in fact exist? And it our goverment hiding the truth from us? Do you think we will ever really know the truth?

2007-10-10 16:30:24 · 5 answers · asked by Anonymous in Astronomy & Space

A trough is 5 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of y=x4 from x=−1 to x=1 . The trough is full of water. Find the amount of work in foot-pounds required to empty the trough by pumping the water over the top. Note: The weight of water is 62 pounds per cubic foot.

2007-10-10 16:21:55 · 1 answers · asked by mjs3382 1 in Mathematics

Is a diamond a real geometric shape? And if so what are some math characteristics to it or jsut information on it?
Thank You :) :)

2007-10-10 16:19:36 · 4 answers · asked by horses4life 1 in Earth Sciences & Geology

I want to know I guess.

2007-10-10 16:16:39 · 3 answers · asked by justkinding 2 in Earth Sciences & Geology

2007-10-10 16:15:37 · 10 answers · asked by michael s 1 in Engineering

2007-10-10 16:15:16 · 4 answers · asked by jetengine767 3 in Physics

2007-10-10 16:10:53 · 0 answers · asked by jake1414 1 in Physics

I've always wanted to see and atom, is it possible, or can we only detect the light around an atom? We seem to have a fair understanding of atoms, so someone must have seen one.

2007-10-10 16:06:13 · 4 answers · asked by Clandestine 1 in Physics

2007-10-10 16:04:20 · 6 answers · asked by fdsfdsafdsfs a 1 in Mathematics

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2007-10-10 16:04:03 · 2 answers · asked by Anonymous in Engineering

cscx/cot^2x=(tanx)(secx)

How do I prove that trig identity while working with ONLY one side. I can't work both sides untl they agree.

2007-10-10 16:01:25 · 5 answers · asked by Keri 2 in Mathematics

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/Picture10.png

2007-10-10 16:00:17 · 2 answers · asked by Des V 1 in Mathematics

the result is the emission of...
1) a beta particle 3) quantized energy
2) alpha particle 4) gamma particles

Please justify your answer, and thanks in advance.

2007-10-10 15:58:40 · 2 answers · asked by Anonymous in Chemistry

2007-10-10 15:58:22 · 1 answers · asked by uhmwhatever122 1 in Chemistry

http://denisdutton.com/ozark_family.jpg

2007-10-10 15:57:20 · 3 answers · asked by Mercury 2010 7 in Astronomy & Space

such that the range and null space of T are identical. Prove that n is even.

2007-10-10 15:55:29 · 2 answers · asked by carlosboozer 2 in Mathematics

How many diagonals does a 12 sided figure have? (Like a triangle has none, pentagon has five diagonals etc. etc.) PLEASE EXPLAIN thank you very much for your time and effort (if you put any in)

2007-10-10 15:54:29 · 2 answers · asked by Fresh Prince 2 in Mathematics

A triangle has a perimeter of 105 inches. The lengths of the sides of the triangle are consecutive odd integers. Find the length of the sides and then use Heron’s Formula to find the area of a triangle. Show all work to receive credit.

2007-10-10 15:53:28 · 2 answers · asked by Anonymous in Mathematics

I am suppose to use the chain rule. I can't quite get the answer on my practice AP calculus book. Can someone help me out step by step?

Answer suppose to be:
4sin^3(x) sec^2(4x) + 3sin^2(x)cos(x)tan(4x)

2007-10-10 15:52:54 · 4 answers · asked by gatortheone 1 in Mathematics

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/Picture6.png

2007-10-10 15:51:33 · 3 answers · asked by Anonymous in Mathematics

2007-10-10 15:48:32 · 4 answers · asked by Anonymous in Mathematics

2007-10-10 15:47:55 · 15 answers · asked by Anonymous in Botany

The area of a rhombus is 7.5 sq. in. Find the length of the two diagonals if one of them is one more than twice the other. Show all work to receive credit.

2007-10-10 15:43:17 · 2 answers · asked by Anonymous in Mathematics

2007-10-10 15:35:51 · 2 answers · asked by brent hendley 2 in Botany

2007-10-10 15:34:31 · 2 answers · asked by mandy 1 in Mathematics

Then How is the Fermi Energy Level located above the Valence Band in the Energy band model?

Correct me if Im Wrong, but...at Absolute Zero, there are No free electrons, so All electrons Must be located in the Valence Band...

2007-10-10 15:33:57 · 2 answers · asked by kennyk 4 in Physics

And on which solids does this not work on? What method should be used to determine their volume?

2007-10-10 15:32:32 · 1 answers · asked by Anonymous in Chemistry

Earlier today, I brought up the subject of the advancement of science & technology as well as the beginning of the universe. The person I was talking to got upset and said that our future should be determined by God and not by science or technology. They also said that if I truly believed in God, I would only believe what the bible says. But science makes lots of sense in terms of validity, replication, experimentation, etc. Why can’t I believe in both science and God?

2007-10-10 15:32:16 · 11 answers · asked by Anonymous in Astronomy & Space