Science & Mathematics - 7 November 2006

How many moles of oxygen gas are contained in a 2.0 L balloon at STP?

If someone could just answer this and explain how they did it, that would be amazing!

2006-11-07 12:40:10 · 5 answers · asked by itsallforyou 2 in Chemistry

2006-11-07 12:39:42 · 4 answers · asked by Repostera06 6 in Weather

does anyone have a science website that can help me with my homework

2006-11-07 12:39:08 · 3 answers · asked by nadine 1 in Mathematics

180 km/hr
Assuming that the distance it must travel is 1600 miles, how long will it take for:

a) a crowd of protesters to lie down on the tracks, tempting fate to prevent it from arriving at its destination?
b) a group of terrorists to either steal it or blow it up near a metropolitan area?
c) certain politicians, blamed for allowing it, to be voted out of office?

Please show all calculations.

2006-11-07 12:37:56 · 5 answers · asked by Anonymous in Mathematics

A tsunami is formed by a chain of events. Can anyone please summarise in a paragraph or so on how a tsunami is formed as I'm really confused?

2006-11-07 12:36:49 · 3 answers · asked by jeffmcbride 2 in Earth Sciences & Geology

2006-11-07 12:36:13 · 13 answers · asked by      7 in Astronomy & Space

2006-11-07 12:35:36 · 3 answers · asked by Lisa M 1 in Zoology

I'm trying to do a problem and problem says asks me what the MINIMUM inital speed necessary to get the rock across the canyon was. It gave us a hint and said that it didn't give us an angle because it implied it in the word: MINIMUM.

What?
Does it mean 0 ?

2006-11-07 12:33:08 · 4 answers · asked by beast 1 in Physics

2006-11-07 12:32:50 · 5 answers · asked by joe j 1 in Chemistry

2006-11-07 12:30:51 · 13 answers · asked by butterflylova2 2 in Mathematics

I would like to know what materials are acceptable for support of PVC and DWV. This would be in the walls and attic. If anyone knows a book or web site please let me know as I need some reference material. Thanks!

2006-11-07 12:29:36 · 1 answers · asked by Anonymous in Engineering

2006-11-07 12:28:55 · 5 answers · asked by Anonymous in Chemistry

2006-11-07 12:27:47 · 6 answers · asked by prentiss s 1 in Geography

Dario, a prep cook at an Italian restaurant, spins a salad spinner 20.0 times in 5.00 seconds and then stops spinning it. The salad spinner rotates 6.00 more times before it comes to rest. Assume that the spinner slows down with constant angular acceleration.

1. What is the angular acceleration of the salad spinner as it slows down?
Express your answer numerically in degrees per second per second.

2006-11-07 12:25:24 · 2 answers · asked by Anonymous in Physics

2006-11-07 12:24:29 · 5 answers · asked by jackweil@sbcglobal.net 1 in Geography

2006-11-07 12:24:05 · 10 answers · asked by Anonymous in Zoology

2006-11-07 12:23:15 · 10 answers · asked by Anonymous in Zoology

2006-11-07 12:22:57 · 2 answers · asked by k k 1 in Earth Sciences & Geology

please show complete work and details

2006-11-07 12:22:11 · 7 answers · asked by Jesus s 1 in Mathematics

Explain why different elements give off different colors.

2006-11-07 12:22:04 · 1 answers · asked by Willy54615 1 in Chemistry

2006-11-07 12:20:20 · 6 answers · asked by Lindz 1 in Mathematics

I am stuck here, I want to say the answer is 96, but feeling that is wrong.

2006-11-07 12:19:45 · 1 answers · asked by momoftwins1986 1 in Mathematics

2006-11-07 12:18:41 · 4 answers · asked by Sr.puerco 2 in Physics

2006-11-07 12:18:26 · 1 answers · asked by Elif 1 in Biology

How is Amethyst used TODAY? What is it's common use?

2006-11-07 12:18:08 · 2 answers · asked by Ryan L 2 in Earth Sciences & Geology

2006-11-07 12:17:17 · 2 answers · asked by fwe fwe 1 in Botany

2006-11-07 12:14:20 · 8 answers · asked by ilove_serj 1 in Physics

~include how each orbits the sun.
~include how likely it is that one will collide with earth.
~include what would happen if one were to strike earth.

2006-11-07 12:13:43 · 1 answers · asked by Jessica 1 in Astronomy & Space

2006-11-07 12:13:28 · 6 answers · asked by ilove_serj 1 in Biology

My friend has some Mexican Jumping Beans, and one of them has busted and the little worm is crawling around everywhere. Will the little worm die? How can it survive?

2006-11-07 12:13:11 · 9 answers · asked by Dimples 2 in Zoology