Science & Mathematics - 22 October 2006

How is it determined which object is moving and which is static. Aren't they both moving relative to each other? In which case, how is it determined which time frame is moving faster -- and which is slower?

2006-10-22 15:16:57 · 5 answers · asked by DAVID W 1 in Physics

2006-10-22 15:14:35 · 4 answers · asked by Anonymous in Engineering

This link
(http://www.aerospaceweb.org/question/dynamics/q0027.shtml)
explains that the reason a flight west takes longer than a fight east is the winds blowing from west to east and that the rotation of the Earth is "cancelled out".
I can understand why does the Earth does not rotate under me if I'm jumping up (I got the inital velocity of the rotation) but intuitively it seems to me that this explantion would not hold on for a plane (has a engine, initial velocity is negligible).

2006-10-22 15:12:58 · 5 answers · asked by Anonymous in Earth Sciences & Geology

2006-10-22 15:11:12 · 13 answers · asked by 61 1 in Mathematics

i need a picture of what the proportion should look like

2006-10-22 15:09:33 · 2 answers · asked by thetorminator93 1 in Earth Sciences & Geology

I am from Iowa, I found it on top of a building while doing some roofing repairs. I have only seen one other like it which was flying around my house one day but I dont remeber its tail being so long. Here is the link to the photo
http://i62.photobucket.com/albums/h81/templar_knight_moore/20061034.jpg

2006-10-22 15:07:40 · 8 answers · asked by templar_knight_moore 1 in Zoology

2006-10-22 15:06:58 · 6 answers · asked by JimE 2 in Mathematics

A sample of calcium metal with a mass of 2.00 was reacted with excess oxygen the following equation represent the reaction 2Ca+O2-->2CaO
the isolated product weighed 2.26g what was the percentage yield of the reaction

2006-10-22 15:01:22 · 4 answers · asked by coolpuffin 2 in Chemistry

A school's lockers are numbered 1 to 100. One hundred students enter the school one at a time. The first student opens the lockers. The second student closes the even-numbered lockers. The third student either closes or opens every third locker, and so on. After all the students have passed the lockers, which lockers are open?

How can this be solved????

2006-10-22 15:00:16 · 6 answers · asked by Shonque 1 in Mathematics

without having to draw a velocity-time graph?

2006-10-22 14:59:33 · 4 answers · asked by Kurosagi 1 in Physics

Consider two falling bodies. Their masses are 1.8 kg and 6.2 kg. At time t = 0, the two are released from rest. What is the magnitude of the velocity of their center of mass at t = 1.2 s? Ignore air resistance.

This is like another one I have found on here, but the masses in that one are the same.... help!

2006-10-22 14:57:55 · 4 answers · asked by L F 2 in Physics

2006-10-22 14:56:47 · 12 answers · asked by ~$#@!**!@#$~ 2 in Biology

2006-10-22 14:55:05 · 20 answers · asked by Debbie B 1 in Mathematics

2006-10-22 14:52:50 · 5 answers · asked by Anonymous in Astronomy & Space

Do I subtract 6-2 then distribute, or distribute -2 first? help!

2006-10-22 14:51:20 · 11 answers · asked by illrckurwrldbaby 1 in Mathematics

The human body is actually more complex than the whole universe. It is so sophisticated, that by itself speaks of a Creator. In spite of that, people studying sciences and medecine shun Creation and believe in evolution. It is enigmatic to say the least.

2006-10-22 14:47:08 · 24 answers · asked by kotyty02 1 in Other - Science

2006-10-22 14:44:33 · 8 answers · asked by mm 1 in Biology

2006-10-22 14:44:32 · 4 answers · asked by Anonymous in Botany

1. parallel to y= -2x+6 through (-8,5)

2. perpendicularr to y=3x+1 , through (-9,2)

2006-10-22 14:43:02 · 5 answers · asked by chet4pizza 1 in Mathematics

Oxygen gas i sconfined in a chmaber under water and bubbles out through a tiny orifice. It takes 62.5 seconds for the 20.0 mL of oxygen to effuse out of the chamber. Another gas of unknown molecular weight takes 35.5 seconds for 15.0 mL to effuse out of the same chamber at the same temperature and pressure. What is the molecular mass of this gas?

2006-10-22 14:40:15 · 1 answers · asked by Aaron S 1 in Chemistry

2006-10-22 14:38:36 · 2 answers · asked by March Madness 5 in Biology

I would like to try and get a yellow pelargonium plant or even green.
I have a few plants already but would like to create a new plant from them and it does not have to be the yellow or green at first.

2006-10-22 14:33:02 · 2 answers · asked by Anonymous in Botany

What volume of 3.25M HNO(3) solution should be mixed with 50.0mL of 6.00M HNO(3) solution in order to form a 4.50M solution of HNO(3)?

2006-10-22 14:32:53 · 1 answers · asked by Aaron S 1 in Chemistry

How can to get the equation from no root?
For example: like 4i and -6i (I don't know if it is possible, just to give a general idea)

Need steps and explanations

2006-10-22 14:30:16 · 7 answers · asked by help_our_health 1 in Mathematics

2006-10-22 14:29:05 · 5 answers · asked by Rick B 1 in Earth Sciences & Geology

2006-10-22 14:28:28 · 7 answers · asked by thunderbbolt 2 in Other - Science

2006-10-22 14:28:07 · 10 answers · asked by Rick B 1 in Earth Sciences & Geology

???????

2006-10-22 14:24:21 · 6 answers · asked by Anonymous in Zoology

What is organic carbon? And what are the effects in water?

2006-10-22 14:24:17 · 3 answers · asked by Anonymous in Earth Sciences & Geology

is evolution random?
or can it be "activated" by certain individuals?

2006-10-22 14:19:17 · 7 answers · asked by Anonymous in Biology