Science & Mathematics - 7 September 2006

georgia natural resource

2006-09-07 15:30:21 · 5 answers · asked by jeremiah m 1 in Earth Sciences & Geology

I have forgotten the formula to convert 2000 KVA Transformer to Amp. FYI, it is a 11KV / 415 transformer.

2006-09-07 15:27:43 · 8 answers · asked by Mr. Logic 3 in Engineering

2006-09-07 15:25:40 · 4 answers · asked by jer 1 in Other - Science

Anything... tell me ANYTHING you think about Pangea. Try to make ure answer at least 5 sentences.

2006-09-07 15:25:11 · 6 answers · asked by Ann 2 in Earth Sciences & Geology

2006-09-07 15:23:39 · 4 answers · asked by ogre 1 in Engineering

A company finds that the cost C to produce x items is C=10,025+1.09x, while the revenue is R=6.42x. Find the break-even point. (Cost equals revenue at the break-even point.)

2006-09-07 15:23:32 · 4 answers · asked by jason 1 in Mathematics

2006-09-07 15:20:35 · 4 answers · asked by stufflebeam@sbcglobal.net 1 in Other - Science

Question 1:An extremely light, drivable car with a mass of only 9.50kg was built in London. Suppose that the wheels of the car are locked, so that the car no longer rolls. If the car is pushed up a 30.0 degree slope by an applied force of 80.0N, the net acceleration of the car is 1.64 m/s^2. What is the coefficient of kinetic friction between the car and the incline?

Question 2:Cleopatra's Needle, an obelisk given by the Egyptian government to Great Britain in the nineteenth century, is 20+ m tall and has a mass of about 1.89 * 10^5 kg. Suppose the monument is lowered onto its side and dragged horizontally to a new location. An applied force of 7.6 * 10^5 N is exerted on the monument, so that its net acceleration is 0.11m/s^2. What is the magnitude of the frictional force?

Can you show some work so that I can figure out how you did the problem?

2006-09-07 15:20:25 · 3 answers · asked by shottundercover 1 in Physics

i just find it hard to belive that sugar(solid) and yeast(solid) mixed in water(liquid) will produce carbon dioxide(gas) and alcohol(liquid).....
just seems like something else should be left in the equation? i'm not a chemist... just seems it cant be that easy... is it?

2006-09-07 15:19:50 · 3 answers · asked by ccollins00 2 in Chemistry

(-2c+3d)(-5)+3(-2c)-(-8d)=

2006-09-07 15:19:40 · 6 answers · asked by tabarella 1 in Mathematics

2006-09-07 15:19:07 · 13 answers · asked by Emily D 3 in Mathematics

3x + 1 < -35 or -2/3x *less than or equal to* 6

2006-09-07 15:16:51 · 5 answers · asked by Rachel 1 in Mathematics

You want to make intergers out of the fraction 1/4 2/5 4/7 5/8 by multiplying each fraction by the same integer n. What is the smallest n that will work.

n is the integer

2006-09-07 15:13:00 · 5 answers · asked by Cowman 1 in Mathematics

Hi, I'm learning Center of Mass in physics right now, and although I got the points made in the lecture, I can't seem to do the hw. I don't need the answer, but I want to know how certain things given in the problem play a role in the answer. Here's the problem for reference:

A square uniform raft, 18 m by 18 m, of mass 6200kg, is used as a ferryboat. If three cars, each of mass 1200kg, occupy thte NE, SE and SW corners, determine the CM of the loaded Ferryboat.

Now, my teacher said put the origin in someplace easy, so I chose the center of the ferryboat as (0,0). I went through the calculations, and got: Xcm = 1.1 and Ycm = -1.1

However, when I put the origin at the South East Corner, I got Xcm = -5.69 and Ycm = 5.69. (Am I allowed to put the origin at this place?)

Is there something wrong here? Also, I would also like to know if the mass of the ferryboat matters here...I think it does. Please help!!!

2006-09-07 15:12:12 · 3 answers · asked by Moosehead 2 in Physics

2006-09-07 15:10:31 · 2 answers · asked by stumped 1 in Mathematics

2006-09-07 15:10:06 · 13 answers · asked by Emily D 3 in Mathematics

please explain with detail!!

2006-09-07 15:08:31 · 5 answers · asked by Anonymous in Chemistry

and please show me how to work it :)

2006-09-07 15:04:52 · 3 answers · asked by not very smart algebra dude. 2 in Mathematics

2006-09-07 15:03:34 · 13 answers · asked by Emily D 3 in Mathematics

2006-09-07 15:03:23 · 11 answers · asked by Beastmaster 1 in Earth Sciences & Geology

2006-09-07 15:03:18 · 1 answers · asked by titaniclover05 1 in Other - Science

a motorcycle starts at point A at time t=0 s and stops at point B. The distance covered in t seconds is given by x=t^2 [2-(t/3)]m. Show that at ts, its velocity is t(4-t) m/s. Find the time taken by the motorcycle to reach point B and the distance between A and B.

2006-09-07 15:00:58 · 1 answers · asked by sunita s 1 in Mathematics

2006-09-07 14:57:21 · 13 answers · asked by Anonymous in Zoology

I'm trying to find a store in my area that I can buy a 5x to 10x handheld magnifying glass. I need it for work. I do detail machining on aircraft parts. It strains my eyes when I don't have one. I have a Loupe, which is an eyepiece, that magnifies 10x but sometimes I can't get close enough to what I'm trying to see to even try to use it. I couldn't find one online at Walmart and don't want to waste my time and gas going in there for no reason. Help Please!

2006-09-07 14:56:56 · 1 answers · asked by Anonymous in Engineering

2006-09-07 14:56:26 · 1 answers · asked by nancy g 1 in Other - Science

Do you think they are indeed alien crafts or soemthing else...what do u think ?

2006-09-07 14:55:42 · 6 answers · asked by Sonny 2 in Other - Science

2006-09-07 14:54:32 · 4 answers · asked by The Apostle 2 in Engineering

2006-09-07 14:53:05 · 4 answers · asked by mandy_2289 2 in Biology

space shuttle, upon re-entry generates incredible heat on the skin of the shuttle. It enters at 25,000 miles per hour. If it had a nuclear reactor on board to generate power allowing it to slow down, enter at any angle and it could enter in the direction of the earth's rotation, instead of against it. This would eliminate much of the danger of re-entry. Is this possible?

2006-09-07 14:53:04 · 9 answers · asked by Anonymous in Astronomy & Space

2006-09-07 14:52:44 · 7 answers · asked by seyi16914 1 in Biology