Science & Mathematics - 9 October 2007

I need interesting facts or unquie features about each planet. not encuding earth. and also how many moons each planet has. Thanks for the help.

2007-10-09 16:38:28 · 9 answers · asked by Rose16 3 in Astronomy & Space

2007-10-09 16:36:21 · 2 answers · asked by Anonymous in Chemistry

2007-10-09 16:21:43 · 3 answers · asked by yodude 1 in Medicine

if you can give me any links that would tell me everything about magnesium it would help.. thanks

2007-10-09 16:12:48 · 8 answers · asked by gio1991a 2 in Chemistry

Was he born a quadriplegic or did he suffer an injury then become quadriplegic?

For a project, Thanks.

2007-10-09 16:07:33 · 4 answers · asked by Paper.Milk 3 in Physics

2007-10-09 16:01:13 · 7 answers · asked by ChEMIsTrY ChICkiE 1 in Astronomy & Space

The 65.0 kg pilot sits on a scale. Take g = 10.0 m/s2.

1.On the first loop, the jet comes within 665 m of the ground. The pilot notices that her scale reading at the top of the loop is 325 N. How long does it take to complete this loop?

I know that radius is approx. 1276, but I do not know how to find acceleration when the pilot is right-side up and up-side down.


Thanks in advance!

2007-10-09 15:59:00 · 1 answers · asked by Chris C 2 in Physics

Captain Haddock is going for a country walk with Tintin, and he takes a deep breath admiring the fresh air just when he happens to be passing in the vicinity of a rubbish tip which he then of course notices.

Is there a subconscious physiological response to bad smells which triggers you to take in a deep breath and notice it? I believe there might be...what do you think?

2007-10-09 15:58:27 · 2 answers · asked by okei 4 in Medicine

A percentage of people just disappear,and no one knows where they went.What do you think?Maybe they were abducted,or something paranormal?

2007-10-09 15:57:41 · 14 answers · asked by Life goes on... 6 in Paranormal Phenomena

suppose g: (a,b) ->R^n is a twice-differentiable parameterized curve. prove that g has constant speed if and only if the velocity and acceleration vectors are orthogonal at every t.

any help on how to approach and solve this question will be much appreciated.

2007-10-09 15:57:15 · 1 answers · asked by Dr H 2 in Mathematics

animals are being treated unfairly. we need to do something about it.

2007-10-09 15:55:17 · 5 answers · asked by brittani h 1 in Zoology

2007-10-09 15:54:19 · 5 answers · asked by andre a 1 in Engineering

At 70 mi/hr, a motorcyclist traveling up a 25 degree ramp can jump how many cars at 6 ft per car?

Thanks.

2007-10-09 15:50:56 · 1 answers · asked by labelapark 6 in Physics

Okay, I understand most of it but I have a few questions.

1)Let's say there's only one point with a value of 22.5 degrees on a field map. How would you connect it? Or would you leave it alone since it's the only one of the value of 22.5 degrees on a map.
2)Just wondering...if you only had two lines of equal value and they're straight across. How would you connect them and show that they are continuous?
3)Gradient junk now, lol. Okay, pretend a question asks is the gradient larger from point D to A or point X to E. If you figure out the gradient and the gradient from D-A was 1.5/m and from X-E was 2.0/m which gradient is larger? I'm confused because I really don't understand the true meaning of gradient. If the questions aren't clear and pictures might help, just request and I'll get working on my /\/\@|) $K1LL$ 11G|-|T? XDXDXDXD

2007-10-09 15:50:43 · 3 answers · asked by ʞristin 3 in Earth Sciences & Geology

I think rift means a break or something, but I am not entirely sure.

For ridge, I have no idea.

2007-10-09 15:49:03 · 8 answers · asked by azngurl0088 1 in Earth Sciences & Geology

2007-10-09 15:47:03 · 4 answers · asked by pussycatz 1 in Biology

If you step off a ledge, you accelerate notiacbly toward the earth because of the gravitational interaction between you and earth.

2007-10-09 15:45:58 · 5 answers · asked by derfla J 1 in Astronomy & Space

how could this be observable,measurable,falsifiable and verifiable

2007-10-09 15:45:38 · 1 answers · asked by Anonymous in Biology

An arrow is launched upwards at an angle of 55 degrees from the horizontal at a speed of 75 m/s. How do I calculate

1. the maximum height to which the arrow rises
2. how long it is in the air before it hits the ground
3. how far away does it land from the launching point?

Thanks.

2007-10-09 15:43:25 · 1 answers · asked by labelapark 6 in Physics

A. gamma ray
B. Visible light
C. INfared
D. Rado

2007-10-09 15:42:29 · 4 answers · asked by tdoby3 2 in Astronomy & Space

Which of the following compounds can exist as cis and trans isomers ?

a) CHCl=CHCl

b) CH2=CH-CHCl2

c) ClBrCHCl

d) CBrBr=CH-CH2Cl

e) 2-pentene

you must enter all true statements

2007-10-09 15:31:04 · 2 answers · asked by physicsisgay 2 in Chemistry

2007-10-09 15:29:42 · 1 answers · asked by kelli s 1 in Chemistry

17^14>31^11

I have the prove this without a calculator so I can't multiply.
I can use mathematical arguments only.

2007-10-09 15:24:15 · 2 answers · asked by Anonymous in Mathematics

2007-10-09 15:23:53 · 8 answers · asked by Anonymous in Biology

http://highered.mcgraw-hill.com/tbern/public_html/0072976985/chap3/sect0/prob8/q.html

in the previous picture:

an athlete is exercising while wearing a 5 lb weigh at his ankle (A)

determine the moment of the weight about the knee joint at B

there are other unknowns but I don't need them just this part which I need

2007-10-09 15:21:54 · 1 answers · asked by Anonymous in Physics

2007-10-09 15:21:50 · 3 answers · asked by lil Konvict 4 in Engineering

That will save a lot of fuel, isn't it?

2007-10-09 15:20:40 · 12 answers · asked by yahooanswers 3 in Astronomy & Space

First find the product(s) to the equation
Then balance the equation
Then list the type of reaction

I don't understand why Zn + HCl doesn't make a product of ZnCl2, because an element + a compound doesn't equal a compound, that isn't any type of reaction. What am I doing wrong?

Zn is +2 charge, H is a +1 charge because Cl is a -1 charge.
Then I swapped them to make ZnCl2 and left H out, but it just doesn't make sense.

2007-10-09 15:19:56 · 1 answers · asked by Average Joes 4 in Chemistry

Here's a conversation:
"How do you find how much stuff is under a graph?"
"You mean, an area under a curve - a function"
"Ye"
"Well, you pretend there are lots of rectangles underneath the curve, and add their areas. You'll notice that the more rectangles I have, the closer I am getting to a limit, a determined value" ... But after that, I just loose him. I try to explain how to get to the basic intg procedure, I even let him try out a mathematica simulation... Anyone know how I can explain the concept of the integral to an eighth grader - with really simple math? He /at least/ understands the concept of Riemman sums, but where do I go from there to reimman integrals and all the other fun stuff without supplementing summations and limits ?

2007-10-09 15:18:02 · 6 answers · asked by Anonymous in Mathematics

5a-b =17
b= 17-5a
3(a) + 2(17-5a) =5
3a +34 -10 a =5

whats the rest?

2007-10-09 15:11:49 · 10 answers · asked by Anonymous in Mathematics