Science & Mathematics - 24 September 2006

2006-09-24 06:43:10 · 17 answers · asked by goatcane 2 in Medicine

2006-09-24 06:40:57 · 2 answers · asked by marina o 1 in Chemistry

a straight river with parallel banks flows at 4 km/h. A boat moves directly downstream relative to the water at 11 km/h. the velocity of the boat relative to the river bank is...?

2006-09-24 06:40:27 · 3 answers · asked by dreamz 4 in Physics

I can't seem to figure out where the left most vector starts. I have drawn a diagram, you can view it by going to the following link

http://individual.utoronto.ca/asadzaman/problemdiagram.jpg

2006-09-24 06:40:09 · 1 answers · asked by Asad Z 1 in Physics

I have some questions to answer about it for school, and I found some of them, but there are two that I can't find in my notes or text books. Could you please help me?
-A few alpha particles were deflected. What does this evidence suggest about the structure of gold atoms?
-How should the original model be revised based on the results of this experiment?
Any help is appreciated!!

2006-09-24 06:39:00 · 4 answers · asked by um yea hi 4 in Chemistry

help! how do you simplify with powers?

2006-09-24 06:35:38 · 2 answers · asked by Anonymous in Mathematics

I need to know this for school work. I wrote 'Atoms must absorb energy to become excited. They can't remain in the excited state, so they immediatley return to the ground state. When they do this, they emit energy as light.', but I didn't mention anything about energy transitions. is this answer correct or not? Can you help me please?

2006-09-24 06:34:23 · 4 answers · asked by um yea hi 4 in Chemistry

Write a recursive formula for each sequence. Use U0 for the first term given...

0, 20, 36, 48.8,....

2006-09-24 06:32:22 · 4 answers · asked by Anonymous in Mathematics

I need to know for homework, and I can't find the answer anywhere. Please help.

2006-09-24 06:28:40 · 1 answers · asked by um yea hi 4 in Chemistry

What do u think the blanks are help ♥

it must deal with decrease and increase rite?™

2006-09-24 06:26:56 · 4 answers · asked by Anonymous in Botany

I, thank GOD! don't have any, but for a research study.
Which phobia is the worst? some phobias can even kill you, without even being in any real danger.
Phobia= darkness, spiders, close spaces, highness...etc...etc...

2006-09-24 06:26:19 · 17 answers · asked by WWE Insider! 3 in Other - Science

If the continents are still moving apart each year what will happen to the channel tunnel. Will eventually a gap appear at one end ?

2006-09-24 06:26:14 · 22 answers · asked by jas 2 in Engineering

whats an algebraic model....and can u help me with this....Walter Payton is the All-Time Pro Football rushing leader. He averaged approximately 4.368 yards per carry
Walter attempted 3838 carries over his 13 year. Write an algebraic model that represents his total yards. Then solve the equation. thnx for ur help!~!

2006-09-24 06:24:17 · 2 answers · asked by softballer_2424 3 in Mathematics

a) If x < 4, then |8 - 2x| = 8 – 2x.

b) For all x, ln e^x = x.

c) For all x > 0, |x|/x^3 = 1/x^2 .

d) For all x < 0, |x|/x^3 = -1/x^2 .

e) At least one of the above statements is false.

NOTE: People sometimes squawk at (e). But if all of (a), (b), (c), and (d) are true, isn't (e) false? And similarly, if one of the first four is false, then (e) is true, isn't it?

2006-09-24 06:23:33 · 4 answers · asked by Olivia 4 in Mathematics

ok im doing a science fair project and i need to know if all living things have DNA such as trees or plants. If you can help in any way then leave a message

2006-09-24 06:21:06 · 9 answers · asked by luxurious_kitten 1 in Other - Science

i need someone to tell me how to simplify as it will help me alot for my homework!

2006-09-24 06:20:20 · 4 answers · asked by Anonymous in Mathematics

is not replaced find the problity of each outcome what is the probability of a green then a white marble

2006-09-24 06:19:31 · 5 answers · asked by Anonymous in Mathematics

2006-09-24 06:18:59 · 5 answers · asked by me 1 in Physics

Define the function f by

2x + 2 for x < 0

f(x) = ax + b for 0 < x < 3

4x - 5 for 3 < x

If a and b are chosen so as to make f(x) continuous everywhere, then a =

2006-09-24 06:18:07 · 3 answers · asked by Olivia 4 in Mathematics

also can you include a example in the answer

2006-09-24 06:17:15 · 4 answers · asked by Anonymous in Mathematics

with out puting it in a ice box

2006-09-24 06:15:54 · 14 answers · asked by savvy55 2 in Other - Science

i need to figure out the wavelength of a 1.9GHz cellphone radiowave. so it would be 3x10^8 / 1.9 ghz to equal the wave length

2006-09-24 06:15:43 · 6 answers · asked by Diggler AKA The Cab Driver 1 in Physics

2006-09-24 06:15:30 · 11 answers · asked by alix xx 1 in Chemistry

2006-09-24 06:12:46 · 6 answers · asked by Kelly 1 in Physics

personally i find it really buzzy and exciting...i love it..i feel my physical energy increase and it makes me feel really wild and happy...i dont know why though...

2006-09-24 06:11:00 · 5 answers · asked by Anonymous in Weather

2006-09-24 06:09:08 · 10 answers · asked by ishan k 1 in Other - Science

When the nightly news comes on, they always tell you that the barometric pressure reading is 30.11 and rising, but what units are they usuing?

2006-09-24 06:08:40 · 3 answers · asked by Anonymous in Weather

2006-09-24 06:08:12 · 3 answers · asked by Anonymous in Mathematics

p(x) is a polynomial function of x with real coefficients and the following characteristics:

p(-3) = 4, p(0) = -2, p(1) = 1, and p(3) = -2.


Based on this information, what is the smallest number of real zeroes that this function can have?

2006-09-24 06:07:57 · 3 answers · asked by Olivia 4 in Mathematics

2006-09-24 06:07:06 · 12 answers · asked by Anonymous in Physics