Science & Mathematics - 26 September 2007

2007-09-26 15:11:32 · 9 answers · asked by passapassaparty 1 in Astronomy & Space

2007-09-26 15:11:32 · 23 answers · asked by birmingham927 2 in Mathematics

I need an experiment that shows that the moon orbits the earth in the same direction that the earth revolves, even though it appears to go the opposite way in the night sky.

2007-09-26 15:11:17 · 2 answers · asked by Page N 1 in Astronomy & Space

A jet is launched from an aircraft with the aid of its own engines and catapult. The thrust of its engines is 3.76*10^5 N. In being launched from rest it moves through a distance of 69.6 m and has a kinetic energy of 5.72*10^7 J. What is the work done on the jet by the catapult?

2007-09-26 15:11:06 · 1 answers · asked by txsweetpea512 1 in Physics

6 facts about ethanol please

2007-09-26 15:09:30 · 2 answers · asked by ~meg~loves**** 2 in Chemistry

2007-09-26 15:08:37 · 5 answers · asked by sportfrog93 2 in Chemistry

Okay The Questions are...

1) A car has a length of 4.97 meters. What is the length of this car in centimeters?


2) A gallon jug has a capacity of 3.785 liters. What is the capacity of the gallon jug in milliliters?

3) A piece of paper has a mass of 2.1 milligrams. What is the mass of this piece of paper in grams?

2007-09-26 15:06:03 · 5 answers · asked by Jennifer 1 in Mathematics

I'm having issues finding information on the WWW about compounds of these elements for some reason, so I would love whatever help I can get, thanks in advance!

2007-09-26 15:05:27 · 4 answers · asked by rockjunky48 2 in Chemistry

f(x)=(3x^3-x^2+x-7)/(2x^3+4x-5)

I know what the answer is but I don't know how to do it. Thanks.

2007-09-26 15:05:18 · 3 answers · asked by Cham Cham 2 in Mathematics

Astronauts use a centrifuge to simulate the acceleration of a rocket launch. The centrifuge takes 40.0 s to speed up from rest to its top speed of 1 rotation every 1.40 s. The astronaut is strapped into a seat 4.30 m from the axis. What is the astronaut's tangential acceleration during the first 40.0 s? How many g's of acceleration does the astronaut experience when the device is rotating at top speed? Each 9.80 m/s^2 of acceleration is 1 g.

2007-09-26 15:04:54 · 2 answers · asked by Anonymous in Physics

I think the answer is no, but I'm not sure to write this as an answer for biology class.

2007-09-26 15:03:45 · 6 answers · asked by Ms.Lee 2 in Chemistry

well many of my friends say that the world is going to end in 2012 is that true? i know it might be like how they say it was going to happen in 2000 but is it rreally?? tellll me please!!!!!!!!

2007-09-26 15:03:10 · 7 answers · asked by Anonymous in Earth Sciences & Geology

not craters.

2007-09-26 15:02:10 · 7 answers · asked by Ally 2 in Astronomy & Space

i cant get the definition for metabolism right. they use too many big words. im not stupid by the way. i kno wat homeostasis means.

2007-09-26 15:01:51 · 3 answers · asked by Anonymous in Biology

i need help on hmwrk and im clueless on this...

2007-09-26 15:00:17 · 5 answers · asked by angie 1 in Other - Science

1. How do you find the number of protons, nuetrons and electrons in an isotope? If someone could show me a formula I am sure I could figure it out.
Specifically 207Pb, 16O(o not zero), 40K, 137Cs, and 40Ar? (numbers should be superscript)

2. How do you find the number of electrons in a specific element? Aluminum and Mercury would be great examples.

Thank you in advance, I have not taken a science class in about 15 years and it is like reading greek to me.

2007-09-26 15:00:07 · 2 answers · asked by Happy Killa Pants 2 in Chemistry

of an object
EX.) a softball
its for a science fair project and i dont know how to figure the mass of a softball, baseball, golf ball, bouncy ball, and so on...
and my thing is: "how does the mass of a ball affect the distance of the ball"
does that make sense?

2007-09-26 14:59:42 · 2 answers · asked by Anonymous in Other - Science

i got the answer n=.25 but im not sure if im wrong please show me how you got the answer

2007-09-26 14:59:38 · 2 answers · asked by Anonymous in Mathematics

Evolution did occur....we all know that. But, i'm not really a scientist and don't know the full details of the theory. I was wondering this question today.....

If we evolved from monkeys (or apes), then how come there are still monkeys in the world?

2007-09-26 14:59:00 · 15 answers · asked by sdboltz07 2 in Biology

just as the question implies.

2007-09-26 14:59:00 · 2 answers · asked by nate m 1 in Mathematics

i have been taking tramadol for about a week it does not work for me at all, but my doctor has refused to give me anything stronger. I am still in horrible pain, and i was wondering what can i do to intensify the effects....does Ritalin/Valium have any effect of why it might not be working orrrr???

2007-09-26 14:58:44 · 4 answers · asked by P dizzle 2 in Medicine

Mia is counting pond life animals.In two hours she counted 4 more frogs then turtles.The number of crayfish she counted was 3 more than twice the number of turtles.She counted 75 pond animals all together.How much of each did she count.


P.S. first person to give the right answers gets 10 pts.

2007-09-26 14:58:16 · 3 answers · asked by Anonymous in Mathematics

I really want to make space shuttles and airplanes and other spacecraft. That's why I've chosen to be an aerospace engineer. I heard that they are often out of a job, is that correct? And also, what do I do as a freshman in high school to prepare? Any other suggestions?

2007-09-26 14:57:14 · 6 answers · asked by G 2 in Engineering

What are some household items that contain plants or has to do with plants like toothpaste contains plants and furniture does what else please help?!!!

2007-09-26 14:54:15 · 2 answers · asked by Tim 2 in Botany

How do I find the right acension and declination of the sun and the moon?

2007-09-26 14:52:16 · 3 answers · asked by scientific08 1 in Astronomy & Space

The interacting living and non-living things in a particular enviroment?

The non-living things in our enviroment_____

The total number if one kind if plant or animal living in an area_____

Animals that eat mainly other animals _____

Squirrels eat the nuts from pine tress. Bull snakes eat squirrels. Which organism, the pine tree, the squirrel, or the bull snkae is the primary concumer? ( will it be the pine tree?)

2007-09-26 14:50:55 · 2 answers · asked by Anonymous in Biology

What Organic Compund is glycerol anbd triglyceride - saturated ?

2007-09-26 14:50:13 · 3 answers · asked by Anonymous in Biology

????????????????????????????????????????????????????????????????????how do you know that
????????????????????????????????????????????????????????????????????????????

2007-09-26 14:49:47 · 7 answers · asked by alondraqueen 1 in Astronomy & Space

2007-09-26 14:48:53 · 3 answers · asked by HackerBoy 2 in Biology

I really would like to get a north face coat for this winter. I'm away at college in northern IL and it gets really cold and windy during the winter. I was thinking about the redpoint jacket but someone I know said it looked thin and that most of the womens jackets looked very thin. What is the best north face coat I can get for these weather conditions without spending much more than $200?

2007-09-26 14:48:08 · 3 answers · asked by Jennygirl 1 in Weather