Science & Mathematics - 1 November 2007

2007-11-01 11:11:53 · 5 answers · asked by gpcobra 1 in Zoology

I need help in my geometry homework and I can't figure out it PLEASE HELP!!

2007-11-01 11:07:26 · 8 answers · asked by Anonymous in Mathematics

2007-11-01 11:05:06 · 11 answers · asked by gipsy 1 in Weather

2007-11-01 11:03:28 · 13 answers · asked by Anonymous in Medicine

i just wanna know any answer for my science homework due tomorrow so plz help!!! thanx

2007-11-01 10:59:46 · 6 answers · asked by Anonymous in Mathematics

2007-11-01 10:54:49 · 4 answers · asked by LuvPnk 1 in Astronomy & Space

Use Bernoulli's equation to estimate the upward force on an airplane's wing if the average flow speed of air is 180 m/s above the wing and 155 m/s below the wing. The density of the air is 1.2 kg/m3 and the area of each wing surface is 27 m2

2007-11-01 10:54:44 · 1 answers · asked by Lzoza A 1 in Physics

5.4 x 10^-3 m and 5.0 x 10^-2 m, respectively. If the height difference between the input piston and the output plunger can be neglected, what force is applied to the trash when the input force is 334 N.

2007-11-01 10:53:06 · 1 answers · asked by Anonymous in Physics

2007-11-01 10:52:50 · 1 answers · asked by Cecile D 1 in Medicine

Could God have created the Universe 6000 years ago, but made it to show in scientifical measurement to have been created billions of years ago with the principal of the big bang correctly explaining how the universe had started?

2007-11-01 10:51:17 · 25 answers · asked by lonelyspirit 5 in Astronomy & Space

The density of seawater is 1025 kg/m3.

a) If an underwater vehicle were to explore such a depth, what force would the water exert on the vehicle's observation window (radius = 0.11 m)?

b) For comparison, determine the weight of a jetliner whose mass is 1.5 x 10^5 kg.

2007-11-01 10:49:13 · 2 answers · asked by Anonymous in Physics

I have a Texas Instruments-30Xa calculator. I am not getting the answer that the online course is providing.

2007-11-01 10:47:46 · 2 answers · asked by Anonymous in Mathematics

A bullet having a mass of 5g is fired horizontally into a wooden block of 2.5 kg mass that is sitting at rest on a horizontal surface. The coefficient of kinetic friction between the block and the surface is μk = 0.25. The bullet comes to rest in the wooden block, which moves a distance of 2 m along the surface. 1) How much work did the bullet do in pushing the block? 2) What was the speed of the bullet when it hit the block? 3) How much kinetic energy was absorbed by the block (i.e. how much energy was not available to push the block)?

2007-11-01 10:47:40 · 1 answers · asked by Laduch 2 in Physics

I know at some times of the year and in some places on earth, the moon is only briefly visible either at the beginning or the end of the night.

Would the full moon be visible in New York's Cental Park at midnight in April?

2007-11-01 10:44:43 · 2 answers · asked by graysmom 3 in Astronomy & Space

If a ball is sitting on the ground, would it have no potential energy, maximum potential energy, or something else? Would it have no kinetic energy or maximum kinetic energy?

2007-11-01 10:36:09 · 5 answers · asked by Saffy 2 in Physics

I am stuck on this math problem >_< please help me, how do I solve this math problem

2x/x-1 + x+1/x
________________
4x/x+1 - 2x+2/3x

So confused, I need to make sure I know how to do this problem before I take a math test, someone help fast

2007-11-01 10:35:21 · 2 answers · asked by kernal 3 in Mathematics

http://i111.photobucket.com/albums/n157/wiltzandrew/poly2.jpg
This is a closed polygon. The units are just general coordinate units:

"What are the coordinates of the two yellow dots?
What is the distance between the two yellow dots?
What is the area of the polygon?
What are the angles of the two yellow dots, in degrees?

*Show your work; numbers must be accurate to the 4th decimal place."

I made this up in Chemistry two days ago when the teacher was rambling on about saturated and unsaturated solutions. Just to find the distance between the yellow dots, it took me about 2 hours because I forgot a few of my trig rules; did that stuff last year; eesh. Took my math teacher about a half hour to find the distance between the two yellow dots. I felt like spicing it up, and adding a few more questions. IM me if the questions are unclear. Good luck!
-Andrew
wiltzandrew1989 on Yahoo! Messenger,
wiltzandrew on AIM,
wiltzandrew on MyspaceIM

2007-11-01 10:35:21 · 4 answers · asked by College guy 2 in Mathematics

this question is so hard it took me forever to figure it out and i have the answer and whoever gets it right and shows me how they did it i will vote as best answer

A rectangular swimming pool is 50ft long and 25 ft wide. there is a walkway x ft wide surrounding the pool.

First you have to find the lenght and width of the pool with the walkway x ft.

Next you have to find the area of hte pool with the walkway in terms x. Explain!

ok if the total area of the pool and walkway is 2284 ft squared, what is the width of the walkway?

This is easy simple geometry right? Wrong! remember whoever gives the right answer and the best explaination gets my vote as best answer!

2007-11-01 10:31:40 · 5 answers · asked by rachel 2 in Mathematics

2007-11-01 10:29:21 · 8 answers · asked by brunettebelle10 2 in Mathematics

Does adding salt to water effect the boiling point of the water?
why?

2007-11-01 10:28:24 · 1 answers · asked by pleiades 2 in Chemistry

Add or subtract to solve each equation.

2 1/5 + 1 8/9

2 1/3 - 4 7/9

2007-11-01 10:25:00 · 18 answers · asked by greekfoodfestival10 2 in Mathematics

2007-11-01 10:22:44 · 17 answers · asked by DuranDoll 6 in Engineering

2007-11-01 10:22:17 · 4 answers · asked by DuranDoll 6 in Mathematics

2007-11-01 10:20:08 · 5 answers · asked by Anonymous in Earth Sciences & Geology

2007-11-01 10:18:52 · 3 answers · asked by Alexander 6 in Earth Sciences & Geology

Jackie decided to sell a CD of her greatest hits of High school
Musical unplugged. The retail price of the case containing the CD
and the CD itself is $1.10. If the case costs $1.00 more than the
CD, how much does the CD cost without CD Case?

2007-11-01 10:18:13 · 8 answers · asked by Chuck Norris 1 in Mathematics

2007-11-01 10:17:46 · 4 answers · asked by candice 2 in Physics

What is the value of X such that (x,0) is a solution of the euation y=3x-4? Answer in a common fraction

2007-11-01 10:16:06 · 4 answers · asked by avril_is_the_hotest 2 in Mathematics

i have to do a paper on matter, im supposed to design an experiment that proves that i am matter and take up space, and it has to be measurable, but I cant use the bathtub one, where you get in and the water level goes up cuz ur space.

2007-11-01 10:15:15 · 5 answers · asked by katykat 2 in Other - Science

2007-11-01 10:14:06 · 4 answers · asked by LuvPnk 1 in Astronomy & Space