Science & Mathematics - 3 October 2007

2007-10-03 01:11:34 · 7 answers · asked by . 1 in Mathematics

if the complex z=(3*K+i)/(1+K*i) with KεR,

prove this one: 1<=/z/<=3

if /z/ is the modulus.

2007-10-03 01:10:21 · 2 answers · asked by Bellaragazza 1 in Mathematics

some people like to think ,when they are at the sea,it clears your mind.
It also makes people feel 'deeper'
more philosiphical?
why is this,is it because being at the sea,is peaceful ?Is it the ions in the air?
and do YOU feel better when you are around water?lakes ,sea ect?

2007-10-03 00:58:59 · 11 answers · asked by I dont know 4 in Earth Sciences & Geology

2007-10-03 00:57:30 · 3 answers · asked by Chintu Philips Koshy 1 in Physics

2007-10-03 00:46:15 · 1 answers · asked by Anonymous in Chemistry

2007-10-03 00:38:13 · 5 answers · asked by Anonymous in Physics

2007-10-03 00:35:13 · 11 answers · asked by Anonymous in Mathematics

I must come up with an equation the determine the distance a spring must be pulled back on a ruler, for it to launch off an hit a specific target. The ruler can be at any angle, the top of the spring is hooked onto the top of the ruler and when you pull back an let go the spring is supposed to fly off and hit the target.

I know Hookes law must be used F=kx, as well as F=ma, and then likely one of the acceleation equations, but I dont know how to put them all together.

Thanks in advance.

2007-10-03 00:31:23 · 1 answers · asked by Cossack 1 in Physics

It was on a math test I want to see if I was right.

2007-10-03 00:31:12 · 10 answers · asked by Miss Klezmer 4 in Mathematics

when jess was 40 yrs old, her son was twice her daughter's age. jess will be twice her son's age when her daughter is 28 yrs old. how old will jess be when her daughter is 20 yrs old?

the answer is 56yrs, dun gimme the wrong one okay! oh and explain why,

2007-10-03 00:30:17 · 4 answers · asked by Estelle V 1 in Mathematics

Give 2 reasons y or y not

2007-10-03 00:29:44 · 11 answers · asked by Anonymous in Astronomy & Space

1. -6 and 0
2. -2, 7/2
3. 3/2, -1/2
4. 3+i and 3-i
5. 2+ √2 and 2- √2
6. 5+3i and 5-3i
pls with complete solution...

2007-10-03 00:12:44 · 1 answers · asked by jazz 1 in Mathematics

3x/(x^2-x-6) + (x+2) / (x^2-6x+9)

so this is a fraction added to another fraction.

thanks in advance
this is really confusing

2007-10-03 00:09:12 · 2 answers · asked by rosecrashers1365 2 in Mathematics

answer this plzzzzzz......

4w + 1 / 4w = w - 2 / 6w = 2

this is involved on rational algebraic expression.,

2007-10-03 00:08:40 · 3 answers · asked by Lance O 1 in Mathematics

(5-3sqrt[-48]) (2-4sqrt[-27])

im lost...

2007-10-03 00:07:40 · 3 answers · asked by rosecrashers1365 2 in Mathematics