Science & Mathematics - 8 November 2007

haha, has anyone ever tried having a pig fly?

2007-11-08 23:45:00 · 11 answers · asked by rikemice147 1 in Zoology

2007-11-08 23:40:39 · 1 answers · asked by shiyas932511 1 in Chemistry

yet takes an hour longer. What are the two planes speed.

How do I tabulate this problem. I got up to 3 and 10, but don't get it, maybe I did it wrong.

I mean I got to the part where (t-10)(t-3) so....600/3 and 1000/3?

2007-11-08 23:40:26 · 9 answers · asked by Anonymous in Mathematics

2007-11-08 23:38:38 · 10 answers · asked by Solitary 1 in Astronomy & Space

depth and density relationship

2007-11-08 23:35:37 · 6 answers · asked by Anonymous in Physics

I have, in my lifetime, tortured many insects. I have caught wasps under a pint glass in a beer garden and seen how long they survive with a smoking cigarette end in there and also burt ants etc with a magnifying glass. I quite like animals but insects annoy me and I like to kill them!

2007-11-08 23:34:57 · 29 answers · asked by Anonymous in Zoology

6s^(-1) + 5s + 20 = A(s+1) + B

Thanks.

2007-11-08 23:30:29 · 3 answers · asked by Anonymous in Mathematics

2007-11-08 23:29:57 · 4 answers · asked by bfreed36 1 in Medicine

2007-11-08 23:24:12 · 26 answers · asked by Anonymous in Mathematics

2007-11-08 23:23:00 · 6 answers · asked by danny r 1 in Mathematics

2007-11-08 23:13:08 · 3 answers · asked by yashvi s 2 in Physics

2007-11-08 23:12:27 · 5 answers · asked by babygirl_04052005 1 in Biology

One of my kids came home from school with this problem from her maths teacher, and I can't think of a way to explain it :

A train is going west to east at 100mph
A fly is flying east to west at 5mph
The fly hits the trains windscreen
The movement of the fly therefore changes from east-west to west-east (in effect it changes direction 180°)
So there must be a moment when the fly's velocity is zero
That moment comes when the fly hits the train
So if the fly's velocity is zero when it's touching the train, then so must be the train's velocity
So the fly has stopped the train

This reminds me of that one where if you shoot an arrow at a tortoise it will never hit it because by the time the arrow has got to where the tortoise was, the tortoise has moved on a bit. I can't explain that one either!

Please help me get back some Dad-cred by explaining what's going on!

2007-11-08 22:58:58 · 16 answers · asked by Anonymous in Mathematics

2007-11-08 22:55:06 · 2 answers · asked by Anonymous in Mathematics

Ba(OH)2 + H3PO4 = Ba3(PO4)2 + H2O When I balance it, I get .....

3Ba(OH)2 + 2H3PO4 = Ba3(PO4)2 + 6H2O ........but what about the net ionic reaction.......for some reason , I dont think there was one, because they both remained aq.

2007-11-08 22:47:24 · 3 answers · asked by dannchris@sbcglobal.net 1 in Chemistry

Just the positive, just the negative, or a combination?
Please help!

2007-11-08 22:45:58 · 2 answers · asked by Eponine 2 in Chemistry

y'' -16y = 2e^(2x), y(0) = -1/6, y'(0) = 2/3

Particularly concentrate on what am supposed to do with initial values / where to substitute them etc...

2007-11-08 22:39:10 · 1 answers · asked by Anonymous in Mathematics

integral de dx/(3x^3 + 2x^2 + 3x + 2)

ya yo hallé por tanteo, el valor de x cuando el denominador lo igualo a cero, porque no me sé ningún otro método y la expresión se queda así:
3x^3 + 2x^2 + 3x + 2 = [x + (6/9)]·(3x^2 + 3)
pero para hallar más soluciones de x ya me salen soluciones imaginarias. Si conocen otro método de resolución o seguir resolviéndola desde donde yo la dejé les doy 10 puntitos. Gracias.
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integral of dx/(3x^3 + 2x^2 + 3x + 2)

Do you know any method to solve it ? 10 points who solve this step by step please. Thank you so much friend

2007-11-08 22:35:07 · 2 answers · asked by Anonymous in Mathematics

2007-11-08 22:24:47 · 12 answers · asked by Anonymous in Mathematics

2007-11-08 22:20:10 · 2 answers · asked by marce m 1 in Weather

... How do I best go about obtaining some? I just need a small quantity for electroplating -- maybe a pound in powder form. Anybody out there can help me out? It'd be greatly appreciated after all the dead-ends and run-around I've dealt with lately. Thanks!

2007-11-08 22:19:59 · 5 answers · asked by SKVY 4 in Chemistry

2007-11-08 21:51:12 · 9 answers · asked by Anonymous in Zoology

Pandas are part of the same family as Grizzli bears and Polar bears, both of which are very dangerous and deadly...If I accidentally leaned over the Panda cage at the zoo, would the Panda be strong enough to bite it off?

2007-11-08 21:44:07 · 16 answers · asked by Anonymous in Zoology

2007-11-08 21:43:06 · 10 answers · asked by mohammad s 1 in Mathematics

c. no circulation through the body
d.mixing of oxygenated & non oxygenated blood

2007-11-08 21:30:15 · 4 answers · asked by Anonymous in Medicine

i dont know wether to belive that there ever humans landing on the moon

2007-11-08 21:24:30 · 32 answers · asked by Anonymous in Astronomy & Space

What is the lift (in newtons) due to Bernoulli's principle ona wing of area 78 m^2 if the air passes over the top and bottom surfaces at speeds of 260 m/s and 150 m/s, respectively?

2007-11-08 21:23:02 · 2 answers · asked by Anonymous in Physics

What is the birthplace of Lord Buddha? I have heard that he was born in the country of Everest !!!!!! howmuch , do you know the truth.
Do Buddha used to speak Nepali language? His original proverbs, teachings and quotations are in nepali , the book Tripitak is also in Nepali (originally) ???

2007-11-08 21:21:55 · 27 answers · asked by you gain 2 draw 2 in Geography

2007-11-08 21:16:00 · 5 answers · asked by DivCW 2 in Physics

Oxygen atoms can combine with ozone to form oxygen.
O3(g) + O(g) -> 2 O2(g)
(delta)H°rxn = -394 kJ

(a) Using (delta)H°rxn and the bond energy data in Table 1, estimate the bond energy for the oxygen-oxygen bond in ozone, O3. _____kJ/mol

(b) How does your estimate compare with the energies of an O-O single bond and an O=O double bond? Explain

(c) Does the oxygen-oxygen bond energy in ozone correlate with its bond order? (yes/no)

Table 1 : http://www.webassign.net/kt/9-10tab.gif

2007-11-08 21:13:07 · 2 answers · asked by beeboroachgoingon197 1 in Chemistry