Science & Mathematics - 7 August 2007

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what is the difference between a Hurricane, a Monsoon and a Typhoon?

I know they all involve wind and rain but is there a difference?

2007-08-07 11:51:11 · 8 answers · asked by Carolyn B 2 in Weather

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Chemistry experts, can you please help me write + balance this equation?

Al(OH)3 + HClO4 ==== ???????

"Solid aluminum hydroxide is added to perchloric acid" to form wat????

PLEASE ITS THE LAST PROBLEM BEFORE I SEND OFF THIS ASSIGNMENT THANKS

2007-08-07 11:49:29 · 3 answers · asked by hillybilly135 1 in Chemistry

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Heat is unusable energy?

Can't we use heat's tendency to rise to create energy? Doesn't it displace anything?

2007-08-07 11:47:25 · 5 answers · asked by Anonymous in Physics

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Why are bugs so powerful for their size compared to larger animals?

Take a cockroach for example! They already run fast and are difficult to kill, but now imagine it was the size of a rhino! Theye'd probably run faster than almost any sports car, and theye'd be strong enough to go about wrecking buildings and the like! And you'd probably need a heavy machine gun or rocket launcher to kill it effectively!
But now let's say rhinos were the size of bettles, they probably wouldn't last more than a week against other bugs!
Why is that? Anyone know? Thanks!

2007-08-07 11:45:06 · 4 answers · asked by Anonymous in Zoology

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im confuse with math??

help with these problems please teach me how to do

1) List all real values ofx such that f(x)=o. If there are no such real x, type DNE in the answer blank. If there is more that one real x, give a comma separated list (i.e.: 1,2).

f(x)=12+17/x-4

2)Evaluate the function f(x)=8x^2-8x+10 at the indicated values

f(x^2)=?

3) find the Domain of -3x^2-15x+12

2007-08-07 11:41:15 · 6 answers · asked by Anonymous in Mathematics

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Why does ice cream get warm when you leave it out but a hot dog gets cold...?

when you leave it out

2007-08-07 11:40:44 · 13 answers · asked by Super 5 in Other - Science

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cancer cells and how they differ from normal cells;genes associated with cancer?

2007-08-07 11:40:32 · 4 answers · asked by sinajina 1 in Medicine

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Could a Bull Shark overcome an Anaconda if it attacked?

2007-08-07 11:39:14 · 4 answers · asked by zebbie g 2 in Zoology

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Write an equation for a line that is perpendicular to an equation and passes through a point?

Hi, i am sorry i am working on a summer packet and i totally forgot how to do some of these things

anyhelp would be really appreciated
I dont need the answer, just a quick explanation on how to do it

the question is: Write an equation for the line that is perpendicular to 9x+3y=6 and that passes through the point (-1,5)
I tried to put 9x+3y=6 into mx+b form but coudlnt do that either
i really need to go back to school
THANKS FOR YOUR HELP

2007-08-07 11:33:22 · 4 answers · asked by pandagrl1992 2 in Mathematics

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Disagreement in Medical Lab Class?

We are having a disagreement in my medical lab class. Which of the following is an example of administering a medication? Giving a patient an IM injection or The doctor giving the patient samples of medication to take at home. Please only serious answers. It is in our book but instructor doesn't take it the same way we do. We say it is the injection but he says that is an injection not administering. He says the samples is because the patient is being given medication. Which of us is right? Please help.

2007-08-07 11:32:38 · 4 answers · asked by Silk 4 in Medicine

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Use the Substitution method to solve the system of equations. 3x+y=5 AND 4x - 7y = -10?

HELP!!!

2007-08-07 11:31:58 · 3 answers · asked by Anonymous in Mathematics

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idont understand this can you please help me?

heres another chem question im having trouble on...thank you so much~

A 750. mL solution containing potassium bromide is evaporated to dryness and 133.74 milligrams of solid potassium bromide are collected. What was the molarity of the original solution?
(answer in moles)

2007-08-07 11:31:06 · 2 answers · asked by Anonymous in Chemistry

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What is the integral of t ln(1+t) dt?

2007-08-07 11:29:45 · 3 answers · asked by Anonymous in Mathematics

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What is the integral of ( - e ^ (1/t) ) / (t^2) dt ?

2007-08-07 11:27:38 · 6 answers · asked by Anonymous in Mathematics

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What would be the best way to describe triangle DEF with vertices D(1, 5), E(-3, 1), and F(-1, -3)?

Right, isosceles, scalene, or equilateral?

2007-08-07 11:21:30 · 2 answers · asked by internets 1 in Mathematics

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Is possible to have ball lightning indoors?

I thought I saw some travel across the room once.

2007-08-07 11:15:47 · 6 answers · asked by Anonymous in Weather

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Is it possibe to create a singularity on earth?

2007-08-07 11:11:46 · 4 answers · asked by Anonymous in Astronomy & Space

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Could you help me with distance between sets in metric spaces?

In a metric space S, with distance function, d, the distance between 2 subsets A and B is defined as d(A, B) = infimum {d(a,b) | a in A and b is B}. Suppose A and B are disjoint. Show that, if A is compact and B is closed, then d(A,B) > 0. Show that this does not follow if, instead of compact, A is only closed

Thank you

2007-08-07 11:05:31 · 1 answers · asked by Anonymous in Mathematics

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Which animal is the biggest killer of humans in the UK?

I heard that it was the Donkey. Is this true? If not, what is?

2007-08-07 10:56:28 · 22 answers · asked by pinz 1 in Zoology

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Trigonometric Equations: Please Help!?

I am tearing my hair out here trying to figure these problems out. I would really appreciate it if someone could show me the steps they took to figure these out. Thanks much.

1) Find all solutions of tanX - cotX = 0, where is X is measured in degrees and 0
2) Find all solutions of cscX = -3, where X is measured in degrees and 0
3) Find all exact solutions of 2cos^2x-sinx = 1 in the interval 0

I know there's a couple of 'em, but I'm hoping with some explanation I can use these three as a basis for understanding how to more. Please help me with this. Thank you very much!

2007-08-07 10:54:46 · 2 answers · asked by cac_424 1 in Mathematics

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What created the holes found in this rock?

It was found on the beach in Santa Barbara, California.

Top side of rock:
http://farm2.static.flickr.com/1086/1042998177_53ce99f4b6_b.jpg

Bottom side of rock:
http://farm2.static.flickr.com/1088/1042998275_4633c18da4_b.jpg

2007-08-07 10:54:35 · 9 answers · asked by Lobster 4 in Earth Sciences & Geology

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What is the result of a chemical reaction between sodium hydroxide and sulfuric acid?

2007-08-07 10:52:07 · 2 answers · asked by Anonymity 3 in Chemistry

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I need help in solving a math word problem?

The engine of a sports car rotates at 5000 rpm, calculate the angular speed of the engine in radians per second. Use 2 TT radians = 1 revolution.

2007-08-07 10:51:32 · 1 answers · asked by Leo 1 in Engineering

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is it true that some oil wells in saudi arabia are starting to produce salt water?

2007-08-07 10:46:31 · 4 answers · asked by mikymaky 2 in Earth Sciences & Geology

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can you name a few triprotic acids?

can you name some triprotic acids?

i know H3PO4 is one but thats not what im looking for...
know any more?
thx

2007-08-07 10:44:29 · 2 answers · asked by Anonymous in Chemistry

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Can someone help me prove this sequence is dense?

Let f:R--> R be continuous, periodic and non constant, with fundamental period p. Show that, if p is irrational, then the sequence (f(n), n=1,2,3.....) is dense in f([0, p]). I was told to use the pigeon hole principle, but I'm really confused.
Thank you

2007-08-07 10:44:14 · 4 answers · asked by Anonymous in Mathematics

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