Science & Mathematics - 24 September 2006

if a nearby star supernovas, how long would it take for people on earth to detect it, and after it's detected, how many years would it take for the supernova to effect the planet earth, if at all?

2006-09-24 12:49:23 · 3 answers · asked by Cracker 1 in Astronomy & Space

2006-09-24 12:48:47 · 7 answers · asked by Anonymous in Chemistry

I understana that Ohm's Law is V=IR, but how do I use this law to give an alternative set of units that could be used to designate the voltage? I've tried to search every where possible to figure this out, but everything I read loses me. Can some please explain this so it its easy to understand?

2006-09-24 12:48:41 · 6 answers · asked by lilmomma0482 1 in Other - Science

I've known how to solve the Rubik's cube very quickly for nearly a year now and whenever I solve it in front of some they always ask if I'm really smart, what level math i'm in, etc.

To me the Rubik's cube has nothing to do with these subjects at all so why do they make these assumptions?

I mean, you really don't need to be smart to solve the cube, you just need to spend a bit of free time.

2006-09-24 12:48:22 · 7 answers · asked by dan 1 in Mathematics

Imagine you have cylindrical tank 4 units in diamiter and and 10 units long. When the installation company put the tank in the ground they laid it on its side. Now you must devise a measuring rod to put in the take in order to show the volume of fuel contianed within. What formula do you use to know how to make the measuring stick.

2006-09-24 12:48:17 · 4 answers · asked by Alan 2 in Mathematics

I need to know where I can find labeled pictures of a cutaway view of the brainstem, specifically a front and side view. I am having a heck of a time finding this and any help would be appreciated.

2006-09-24 12:48:09 · 4 answers · asked by egg0rz 2 in Medicine

2006-09-24 12:46:19 · 6 answers · asked by Nessa 1 in Other - Science

2006-09-24 12:46:03 · 9 answers · asked by RamsFan 3 in Mathematics

Although living near a volcano may be dangerous, farmers in many countries plant crops on the slopes of volcanoes. Why? I don't get it.

2006-09-24 12:44:59 · 11 answers · asked by Anonymous in Earth Sciences & Geology

2006-09-24 12:44:19 · 13 answers · asked by DAVID M 1 in Mathematics

i'm in 9th grade and i got confused on what a isolated point is, i was gone from school a few days and im sure the teacher explained what it was while i was gone, so does anyone know what it is?

2006-09-24 12:44:13 · 4 answers · asked by shorty_gurl1206 1 in Mathematics

what gravitational force act on it?

2006-09-24 12:43:34 · 7 answers · asked by rastgoo_2 2 in Earth Sciences & Geology

I need information about Cyanthea dryopteroides

2006-09-24 12:42:29 · 3 answers · asked by Sonia M. C 1 in Biology

2006-09-24 12:41:26 · 3 answers · asked by Emily B 1 in Mathematics

2006-09-24 12:39:19 · 8 answers · asked by ROB B 1 in Weather

2006-09-24 12:38:47 · 3 answers · asked by zberardo 1 in Geography

well my throat has really been huting lately and its been kinda mucus-y

what can i do to stop it?

2006-09-24 12:36:26 · 11 answers · asked by soccerandlaxfan4life 2 in Medicine

2006-09-24 12:36:06 · 7 answers · asked by Anonymous in Biology

This is a science experiment and I need to know what the radius of a normal marble is.

2006-09-24 12:34:17 · 5 answers · asked by zachvh3 2 in Other - Science

An outboard motor calls for a fuel mixture that has a gasoline to oil ratio of 50 to 1. How many pints of oil should be added to 6 gallons of gasoline?

2006-09-24 12:33:32 · 7 answers · asked by Paul B 1 in Mathematics

I am having some real hard troubles with rational expressions and things like that. How would I solve this equation to find x. Please give all the steps and explain if possible.

http://img216.imageshack.us/img216/312/problemza1.jpg

2006-09-24 12:28:21 · 6 answers · asked by Jack8274 1 in Mathematics

2006-09-24 12:19:58 · 5 answers · asked by srkhan1974 1 in Medicine

I have this vectors:
V= (2 5 -4)
W= (1 -2 -3)

V*W= 2*1+5*-2+(-4)*(-3) = 4

cos (V,W) = V*W / IVI * IWI

Can anyone explaind me how can I calculate the below part.

2006-09-24 12:19:12 · 7 answers · asked by Anonymous in Mathematics

When will it start to rain and get cold this year? The warm weather is really irritating me.

2006-09-24 12:18:20 · 6 answers · asked by Sarah . 1 in Weather

messhing gears are positive displacement pump powered by electric motor....can they be rotated by liquid flow?

2006-09-24 12:18:11 · 6 answers · asked by ljmuller 1 in Engineering

Some one told me that chicken lays 1-2 eggs per day without the help of a Rooster. I thought that a Hen has to have sex for it to lay eggs. Is this true? I'm not a country boy and never ever seen a live chicken or Hen or is that the same thing?

2006-09-24 12:15:01 · 4 answers · asked by Tigger-Tiger 2 in Zoology

an arrow flies to the moon with an initial velocity of 55m/s. Its height after t seconds is given by H=55t-0.83t^2. WIth what velocity will the arrow hit the moon?

2006-09-24 12:14:52 · 9 answers · asked by Anonymous in Mathematics

2006-09-24 12:14:24 · 10 answers · asked by rastgoo_2 2 in Astronomy & Space

y = f(x)
x is integer.
The solution of y is:
y is -1 for all even values of x
y is +1 for all odd values of x
what is f(x)

2006-09-24 12:11:26 · 10 answers · asked by Anonymous in Mathematics

There is a place in Toronto where students use cadavers for their learning. Tell how to go about leaving my body for this purpose. Do my love ones still have to have a funeral, which I DO NOT WANT.

2006-09-24 12:10:07 · 15 answers · asked by cufflinkro 2 in Medicine