Science & Mathematics - 25 September 2006

2006-09-25 09:48:34 · 17 answers · asked by steve 4 in Physics

This project can't be senitive and CANNOT INVOLVE VERTEBRATES!

2006-09-25 09:46:44 · 5 answers · asked by Anonymous in Other - Science

Two vectors lie with their tails at the same point. When the angle between them is increased by 20degr. the magnitude of their vector product doubles.
The original angle between them was about:
a 0
b 18degr
c 25 degr
d 45 degr
e 90 degr

I drew pictures for all answers and I think only 0 degr would work but I'm not sure. How can I calculate this?

2006-09-25 09:43:17 · 4 answers · asked by dutchess 2 in Mathematics

The animal is a fish. its back is black, and its tummy is white. it is horizontally flat. it appeared in the movie "finding Nemo" as the school bus that took the other fishes to learn stuff.

do you know the name please...thank you...

2006-09-25 09:40:43 · 14 answers · asked by Sky Star 1 in Zoology

Is it '<' or '>'? Yes, I know I did it in year 4!! Doh! Thanks in advance.

2006-09-25 09:40:02 · 39 answers · asked by MnM 4 in Mathematics

If identical guns fire identical bullets at the same speed from the same height above level planes, one on the earth and one on the moon, what is true:
1 the horizontal distance travelled by the bullet is greater for the moon.
2 The flight time is less for the bullet on earth
3 The velocities of the bullets at impact are the same

I think 1 and 2 are true but what about 3?
I don't think it's true because if I would calculate V, I would have to use g and for the moon that's 1.63m/s making the result different than the result we would get on earth using 9.8m/s.
Who can explain this to me please?

2006-09-25 09:38:39 · 3 answers · asked by dutchess 2 in Mathematics

2006-09-25 09:33:49 · 15 answers · asked by lou 2 in Mathematics

2006-09-25 09:32:51 · 8 answers · asked by FreakMachine 2 in Earth Sciences & Geology

2006-09-25 09:32:14 · 26 answers · asked by Anonymous in Zoology

1. Base case n = 4
4! = 24
2^4 = 16
24 > 16

2. Assume n!>2^n. Prove (n+1)!>2^(n+1)
n! > 2^n
2*(n+1)n! > (n+1)(2^n)*2
2(n+1)! > (n+1)2^(n+1)
2(n+1)! > 2^(n+1)

This is where I am stuck - I can't figure out how to get rid of that two on the LHS. Any help would be appreciated.

2006-09-25 09:32:10 · 4 answers · asked by Noachr 2 in Mathematics

2006-09-25 09:29:23 · 5 answers · asked by Anonymous in Engineering

2006-09-25 09:28:56 · 16 answers · asked by Anonymous in Medicine

I have to teach about thunder and lightnings on Thursday - How do I explain positive/negative energy to 9 year olds?

2006-09-25 09:28:05 · 19 answers · asked by Malene P 2 in Weather

It's been proven they think differently and left handed people have a higher proportion of geniouses.

2006-09-25 09:24:34 · 17 answers · asked by Anonymous in Biology

What is the formula? 1 lbs = ...... kg?

2006-09-25 09:24:09 · 9 answers · asked by sylvdoanx 2 in Mathematics

2006-09-25 09:23:22 · 5 answers · asked by big_j_gizzy 4 in Mathematics

2006-09-25 09:23:17 · 11 answers · asked by bogstandard 2 in Engineering

In communication networks, radios must be able to detect and avoid interference or jamming.

2006-09-25 09:22:47 · 1 answers · asked by waskeyc 1 in Engineering

If time travel where possible would you be able to change history?
My theory is that you would not. Anything we know about what has happend, will have happend. It would then not be possible for it not to have happend.
Debate please.

2006-09-25 09:21:24 · 11 answers · asked by Willi 2 in Other - Science

2006-09-25 09:20:05 · 6 answers · asked by sarah 2 in Medicine

2006-09-25 09:18:51 · 3 answers · asked by lynnette o 1 in Chemistry

is it true that church of england vicar make their collars out of plastic washing up bottles.

2006-09-25 09:16:02 · 1 answers · asked by guysmithdenise 3 in Other - Science

I am having a bit of trouble in mechanics. What equation goes where?

2006-09-25 09:13:50 · 8 answers · asked by anonymous2372000 1 in Physics

Those on daily/hourl rates get paid extra?

2006-09-25 09:12:37 · 13 answers · asked by ben 2 in Other - Science

On the table there is a 5-liter jug full of grape kool-aid. There is also an empty 2-liter jug and a empty 3.5 liter jug. You can pour the kool-aid back and forth between the jugs, but you can't add any of the "grape deciciousness". How can you end with 2.5 liters in both the 6-liter and 3.5-liter jugs?


THANKYOU FOR HELP!!!!!!

2006-09-25 09:11:43 · 9 answers · asked by Anonymous in Mathematics

This is for my science fair project.

2006-09-25 09:10:59 · 23 answers · asked by Anonymous in Other - Science

It Just Makes Me Wonder. I Never Thought Of It Until My ROTC Teacher Pointed It Out. Now I'm Just Wondering About It. So Please Give An Answer. And Yes This Is so Scientifical! Peace.

2006-09-25 09:10:02 · 9 answers · asked by iluverzskuts 1 in Other - Science

Was sure id heard this somewhere just want it confirming as i havent time to do the counting.

2006-09-25 09:07:22 · 21 answers · asked by bogstandard 2 in Earth Sciences & Geology

Please complete redox Reaction and balance
(using half reaction method)

Please show every step...
Thank you.

2006-09-25 09:06:22 · 0 answers · asked by Anonymous in Chemistry

As facts: all planets are made of the same compounds as earth.
closer to the sun is extremely hot
farther than earth is extremely cold
neither of those is suitable for humas
So it is pointless to send probs,even if a prob landed on the moon or a planet , So what! it doesn't worth the benefit! isn't it!

2006-09-25 09:06:01 · 26 answers · asked by Anonymous in Astronomy & Space