Science & Mathematics - 11 December 2007

Ok i do not want the answer or anything because i want to figure out how to do this on my own. Ok i am going to show the question below and can someone please show me/ tell me how to solve it? Thank you sooo much!!!

Find the perimeter of Triangle ABC if AB = 1/6 in., BC = 2/3 in. and AC = 1/2 in

also if you know of a fast easy way to solve it, i would appreciate it if you could tell me how ;-)

2007-12-11 05:36:06 · 3 answers · asked by Anonymous in Mathematics

2007-12-11 05:35:10 · 1 answers · asked by william5000forever 2 in Mathematics

If 8^2-x = 4^3x, x=?

2007-12-11 05:32:53 · 3 answers · asked by pinkduck000 2 in Mathematics

2007-12-11 05:32:02 · 19 answers · asked by Dan P 4 in Astronomy & Space

why is it that sometimes it can snow at just about 4 degree celsius and sometimes it can get to even-2 but it would never snow,why does this happen?As when its about to rain and it becomes sooo cloudy and very humid,how does one know if it wants to snow?does it show any impending signals ans sighs before it snows,what are some?

2007-12-11 05:31:23 · 1 answers · asked by sweet girl 1 in Earth Sciences & Geology

2007-12-11 05:30:29 · 6 answers · asked by Anonymous in Mathematics

2007-12-11 05:30:02 · 2 answers · asked by Ken B 1 in Mathematics

In order to produce a "true vacuum", we would have to be able to not only remove all matter from the chamber, but insulate it against any and all forces - heat (we would technically have to insulate the inner layer of "hull" so it wouldn't radiate any heat transfer), electricity, magnetism, gravity...

Any hope of insulating against gravity is far beyond our reach at this point, and I suspect magnetic dampers are either beyond reach or impractical. But we can certainly insulate against some of the other things.

Is there any known way to confine a space, remove the matter (most if not all) and squelch the electromagnetic passthrough either completely or just to a significant degree?

A secondary question: Would this space have any unusual properties -other- than being a near-perfect vacuum?

2007-12-11 05:30:01 · 5 answers · asked by uncleclover 5 in Physics

Can anyone tell me at what points, (English and French), the Channel becomes the North Sea?

2007-12-11 05:29:14 · 2 answers · asked by Anonymous in Geography

i'm trying to look for it to prep up for the geminid meteors and i'm currently in california.. i'm jus looking for a relative direction (north,south,east,west, etc) so that i could try spotting the constellation...

2007-12-11 05:27:10 · 5 answers · asked by TheImportanceOfBeingEarnest 2 in Astronomy & Space

Kelly has 20000 to invest. As her financial planner, you recommended that she diversify into three investments: Treasurybills that yield 5 % simple interest, Treasury bonds that yield 7 % simple interest, and corporate bonds that yield 10 % simple interest. Kelly wants her investment in corporate bonds. How much money should Kelly place in each investments?

2007-12-11 05:22:11 · 1 answers · asked by star baller 360 5 in Mathematics

How long does it take for a swiftly moving stream to wear a rock down from being a rough broken rock to having a smooth surface. In other words for approx 1/4 of an inch of rock to be eroded away

2007-12-11 05:20:21 · 3 answers · asked by george 1 in Earth Sciences & Geology

I'm guessing the chances of them finding our probes might be astronomical. But if there are objective reasons for finding the areas of "scientific interest" that we've chosen to explore, that would bring them closer to the same general region of the planet. What sorts of observations would they need to make to uncover our by-then ancient probes? Would simple metal detection work? Density scans of the dunes that show something the density of hardened rubber (tires)? What would be the easiest way for them to detect such a thing?

I guess a secondary question might be that if there -is- a practical answer, might that be something -we- would want to consider watching for, so long as it doesn't take too much time, energy or effort away from more likely studies?

2007-12-11 05:20:15 · 5 answers · asked by uncleclover 5 in Astronomy & Space

A weight of 600.0 N is raised 4.65 m by a pulley system which has an IMA of 3.00.
How far must the effort travel to accomplish this?
What effort is required to maintain dynamic equilibrium if friction is neglected?

Effort Distance = ________________ m

Effort Force = ________________ N

2007-12-11 05:19:53 · 1 answers · asked by Anonymous in Physics

be specific please and if anything give me websites where i can read more.
Thanks.

2007-12-11 05:15:24 · 5 answers · asked by Frannie 2 in Astronomy & Space

I’m no spring chicken but I have wanted to do this type of thing all my life, I have had a lot of experiences with the paranormal in my life, but being Catholic I’ve always though that type of thing was wrong until last night when I saw the Penn state Paranormal Society on A&E and they were saying that they were commissioned by the Catholic church and they are very spiritual. In my time that was looked down on and my personal experiences were taboo. I’m in my 30’s and need to start from the very bottom and I don’t know where to start or what sort of schooling I need for this. I’ve been drawn to this since I was a little girl, but was always shut down or shunned, but if the Catholic Church backs this type of thing that I can jump in right? I’m older than most collage kids, but I’m so ready to start doing what I’ve always wanted to do.

Where do I start? I live in Texas.

2007-12-11 05:14:26 · 8 answers · asked by Annalissa 2 in Paranormal Phenomena

2007-12-11 05:14:14 · 4 answers · asked by Z 1 in Earth Sciences & Geology

i need 2 do a tracking robot which moves on a white line n stop wen it comes across a white horizontal line across its path..can some1 giv me any ideas..pls...

2007-12-11 05:14:12 · 2 answers · asked by RITZ DON 1 in Engineering

If so email me at james.hardwick94@gmail.com


note if anyone sells my email expect trouble.

2007-12-11 05:14:11 · 6 answers · asked by Anonymous in Astronomy & Space

i've been working on this one for a long time and just can't find an answer. if you could tell me step by step how it can be done, that would be great.

2007-12-11 05:09:58 · 9 answers · asked by mr j 4 in Mathematics

y/3 = 6/5

2007-12-11 05:05:26 · 6 answers · asked by Trisha 2 in Mathematics

2007-12-11 05:05:05 · 0 answers · asked by darrilyn p 1 in Mathematics

1. 8 + 45r – 18r2
a. (4 – 2r)(2 + 9r)
b. (4 + 18r)(2 – r)
c. (8 – 3r)(1 + 6r)
d. prime


2. 35y2 + 2y – 24
a. (7y + 6)(5y – 4)
b. (7y + 12)(5y – 2)
c. (35y – 24)(y + 1)
d. prime

2007-12-11 05:05:02 · 2 answers · asked by Anonymous in Mathematics

is it
aufbau principle, hunds rule, paulis exclusion principle , periodic law or heisenbergs priciple

2007-12-11 05:04:18 · 1 answers · asked by HisGlory 1 in Physics

Consider a smooth incline plane 9 m long rising to a height of 2.7 m. Calculate the largest load that can be moved up along the plane by an input force of 600 N applied parallel to the plane.

load = ___________ N

2007-12-11 05:02:27 · 4 answers · asked by Anonymous in Physics

2007-12-11 05:01:03 · 1 answers · asked by Jessica 2 in Astronomy & Space

2007-12-11 05:00:25 · 7 answers · asked by Jenny D 1 in Mathematics

2007-12-11 04:58:40 · 7 answers · asked by Anonymous in Geography

Find the area bounded by graphs of the indicated equations over the given interval

y= x^2 - 20 ; y = 0 ; -3 < or = x which is < or = 0

can anyone help me with this? i know that x^2 is a parabola. but i'm stuck

2007-12-11 04:56:58 · 3 answers · asked by Lisa S 1 in Mathematics

I have solved this equation in my Graphing calculator, which gives an answer of 1.28 rads or 73.1°. Can anyone solve it algebraically?

2007-12-11 04:55:09 · 4 answers · asked by vibin_isp 1 in Mathematics