Science & Mathematics - 28 September 2006

If you are travelling at 70mph in a car, with a 70mph wind blowing in the same direction as you are travelling, does that mean that if you were to put your head out the window it would seem like a calm day with no wind?

2006-09-28 15:17:02 · 16 answers · asked by Anonymous in Weather

acceleration is the change in velocity over time. so what are the units of acceleration?

2006-09-28 15:16:57 · 7 answers · asked by foxy lady 2 in Physics

Given a circle transcribed in a triangle, prove that area of triangle= sr, where 2s=periminter of triangle and r=raidus of circle, the triangle is equilat

2006-09-28 15:14:40 · 4 answers · asked by Macarro 2 in Mathematics

How would I graph y = sin1/2x ? What would be on my x and y axis? And where would the points go? And if you don't mind, how did you get your answer? Please help, thanks.

2006-09-28 15:09:51 · 3 answers · asked by yeppperz 1 in Mathematics

Scince Fair Projects!!! Need A topic Due Tommorow!!Easy 7th grade topics!!

2006-09-28 15:05:43 · 10 answers · asked by f4evaioveatl94 2 in Earth Sciences & Geology

2006-09-28 15:03:59 · 6 answers · asked by gen 2 in Chemistry

project i need help i cant find if u know it please tell me

2006-09-28 15:03:37 · 6 answers · asked by Anonymous 2 in Mathematics

my son just caught one.what do they eat?what do they need to survive(habitat)

2006-09-28 15:03:27 · 6 answers · asked by L.T. 4 in Zoology

project

2006-09-28 15:02:12 · 13 answers · asked by Anonymous 2 in Mathematics

2006-09-28 15:01:28 · 13 answers · asked by hondacobra 2 in Astronomy & Space

2006-09-28 14:58:24 · 7 answers · asked by confused girlfriend 1 in Earth Sciences & Geology

2006-09-28 14:58:12 · 5 answers · asked by Micaela A 1 in Biology

2006-09-28 14:56:16 · 5 answers · asked by malaysia 2 in Biology

2006-09-28 14:55:35 · 2 answers · asked by Anonymous in Chemistry

2 light beams head on will interfere constructively/destructively.

how do 2 lights beams 90 degrees to each other interact?

2006-09-28 14:55:19 · 2 answers · asked by Anonymous in Physics

2006-09-28 14:52:48 · 12 answers · asked by Anonymous in Astronomy & Space

2006-09-28 14:49:26 · 6 answers · asked by Anonymous in Earth Sciences & Geology

Is the universe expanding in to nothing or something that isn't there yet?! Asking this has truly f***ed my head up...

2006-09-28 14:47:48 · 28 answers · asked by Anonymous in Astronomy & Space

I'm thinking turbulent air is a no no for aerodynamic efficiency, but does the highway's air actually move with the direction of traffic since the mass of vehicles is so massive? I imagine maybe it loops above the car masses as the cars push through. So I'm thinking there is maybe efficiency if you stick close to other cars. What do you think? What about behind big trucks? Not considering safety because this is just theoretical.

2006-09-28 14:45:34 · 6 answers · asked by Ilooklikemyavatar..exactly 3 in Physics

x^5-x^3... and how would I go about factoring it?

x^3 (x^2)... that's what I would have done, or rather, did do... that's wrong, isn't it?

ALSO, what would a problem like this:

Solve for x:
(SQRT 18x-5) = x+4

what would that be called? I have a book that can explain to me every type of problem, I just don't know what to look it up under, thanks for all the help, I really appreciate it!

2006-09-28 14:44:08 · 7 answers · asked by Anonymous in Mathematics

I have Sodium Chloride as liquid and I want to use it as oxidizer in making black powder.

2006-09-28 14:40:59 · 3 answers · asked by Morris, KIP 2 in Chemistry

2006-09-28 14:39:52 · 6 answers · asked by MHMA 1 in Engineering

And what is this process called

2006-09-28 14:38:29 · 14 answers · asked by Skittles 4 in Other - Science

2006-09-28 14:38:17 · 9 answers · asked by OnlyMe 1 in Other - Science

I'm in physics and I'm so confused my teacher won't explain it good anybody can help me here?

2006-09-28 14:38:15 · 3 answers · asked by ay3e 2 in Physics

1. A radar antenna is tracking a saetellite orbiting the earth. At a certain time, the radar screen shows the satellite to be 162 km away. The radar antenna is pointing upward at an angle of 62.3 degrees from the ground. Find the x and y components (in km) of the position of the satellite.

2. The altitude of a hang glider is increasing at a rate of 6.8 m/s. At the same time, the shadow of the glider moves along the ground at a speed of 15.5 m/s when the sun is directly overhead. Find the magnitude of the glider's velocity.

Thanks...

2006-09-28 14:34:30 · 2 answers · asked by GameOver 2 in Physics

2006-09-28 14:32:33 · 3 answers · asked by Jac 1 in Mathematics

How do you know how many dots to put?

2006-09-28 14:28:38 · 2 answers · asked by Anonymous in Chemistry

I'm writing this for an essay, hoping it will add an interesting twist. Usually, I don't have any trouble thinking outside the box, but I wanted more opinions on this one. Wouldn't the Earth be in the 1st dimension (a line) then?

2006-09-28 14:25:56 · 1 answers · asked by ? 2 in Astronomy & Space

2006-09-28 14:23:51 · 6 answers · asked by navin 1 in Engineering