Science & Mathematics - 28 August 2007

i have been searching via internet and all i found was RODIN THE THINKER...is it my lecturer give me wrong question about rodin's direct reading viscometer?..

2007-08-28 14:37:25 · 10 answers · asked by Rody 1 in Engineering

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What theory supports that a sealed soda bottle is harder to break then an open one?

2007-08-28 14:36:02 · 1 answers · asked by VERONICA A B 1 in Physics

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Help! (3x-2)(x+5)=0...please explain too!! thanks!?

2007-08-28 14:35:51 · 5 answers · asked by kels4607 2 in Mathematics

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Another Frustrating Electric Force question?

once again I'm working over a problem again and again but the online homework thing keeps rejecting my answer so I turn to you to cheek my numbers.

Two point charges are placed on the x-axis as follows: one positive charge, q1=4.01 nC is located to the right of the origin at .204m. And a second positive charge q2= 4.97 nC and is located to the left of the origin -.302m.

What is the total force (magnitude and direction) exerted by these two charges on a negative point charge q3= -5.99 nC that is placed at the origin?

My answer always comes up at around -2.25 N

2007-08-28 14:32:01 · 1 answers · asked by frozenlint 2 in Physics

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how many farads is 372,000,000 micro farads?

2007-08-28 14:31:55 · 8 answers · asked by Eric D 1 in Engineering

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Why 2 months in outspace could be equal years on Earth? I mean what cause the difference between time in space

2007-08-28 14:29:21 · 4 answers · asked by leyna_nguyen_0702 2 in Astronomy & Space

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Linear equation?

I think the answer is 13 but I don't know how to complete the equation.

The question is:
2 years ago jamie was half as old as she will be 9 years from now. How old is she now?

Please help

2007-08-28 14:25:08 · 9 answers · asked by Help please 1 in Mathematics

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How many Neutrinos per/second are flowing through us?

Thousands,millions,billions etc.....

2007-08-28 14:21:17 · 2 answers · asked by Tomcat 5 in Physics

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I have a word problem that I can not get please help?

2 years ago Jamie was half as old as she will be 9 years from now. How old is Jamie now?

How can I work this out. I think the answer is 13.

2007-08-28 14:20:40 · 2 answers · asked by Help please 1 in Mathematics

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is there a meteor shower tonight?

2007-08-28 14:19:55 · 7 answers · asked by Love is Patient, Love is Kind ♥ 4 in Astronomy & Space

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Very interesting effects of drugs on spiders?

This short video (1:49) starts a little slow but gets interesting quickly.

http://www.youtube.com/watch?v=sHzdsFiBbFc

Thanks for the link, Emily L.

2007-08-28 14:09:16 · 15 answers · asked by Darth Cheney 7 in Zoology

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What is the chemical name of Al2(SO3)3?

2007-08-28 14:07:55 · 1 answers · asked by Chaucer 1 in Chemistry

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what happens with the debry that is a result of spaceships?

Have you ever noticed that when there is a pointless launch, what happens with all the rockets that somehow split off the main rocket?

2007-08-28 14:03:45 · 3 answers · asked by nose4deals 2 in Astronomy & Space

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What happens to all the waste/trash that the astronauts bring back? Where does it go ?

2007-08-28 14:00:23 · 5 answers · asked by opaueyes 1 in Astronomy & Space

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How can I tell which element has monatomic cations?

2007-08-28 13:58:16 · 1 answers · asked by Deesa 2 in Chemistry

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can someone explain this?

Question
The sum of any 4 consecutive numbers is even. explain how this is true.

2007-08-28 13:56:05 · 16 answers · asked by motoman54 1 in Mathematics

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Physics help?

In class we did this experiment with a ball on an incline. We used a motion detector and it made two graphs on the computer. one positon vs. time and one velocity vs. time. both are of the same ball and motion. it says to find the equations to both graphs. like on the p vs t, its a quadratic equation, and on the velocity one its a linear equation. well the question is

how does the constant in the position vs. time equation relate to the slope of the velocity vs. time equation??

2007-08-28 13:54:41 · 1 answers · asked by ksv 1 in Physics

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----Physics Confusion----?

Let o=the angle's position:

If a question states North of East angle of o:
Is it drawn as this: /o_
Or this: o/_
And vice versa, is East of North this: o/_

PS: Pretend /_ is an angle, and because o can't be underlined, excuse the cut.

2007-08-28 13:53:06 · 1 answers · asked by TT 1 in Physics

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what is the integral of 1/(7+y^2) dy?

step by step, please.

i came up with an answer ln(7+y^2)/2, but it's wrong.
help would be greatly appreciated!

2007-08-28 13:49:32 · 2 answers · asked by Awesometown13 1 in Mathematics

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5. No matter how hot you make the tea, you cannot dissolve any more sugar into the solution.?

This is an example of...

a. solvent

b. hot

c. heterogenous

d. saturated

2007-08-28 13:49:20 · 4 answers · asked by Josh 2 in Chemistry

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Simple physics question about velocities.?

"A person first walks at a constant speed V1 along a straight line from A to B and then back along the line from B to A at a constant speed v2" What is her average speed over the entire trip?

I thought it was just (V1+V2)/2 but someone told me you can't do that in this case?

2007-08-28 13:48:35 · 2 answers · asked by music123 1 in Physics

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