Science & Mathematics - 16 August 2007

are opposite angles congruent?
parallelogram
rectangle
square
rhombus
square
trapezoid
thanks!

2007-08-16 09:56:55 · 6 answers · asked by Anonymous in Mathematics

Is it true that masturbation stunts growth?

does ejaculation lower the amount of HGH (Human Growth Hormone) produced by the body?

do you lose testosterone each time u ejaculate?

2007-08-16 09:54:36 · 10 answers · asked by Anonymous in Biology

Hi. I need some help with 3 geometry problems. Please explain how to do these?

1) The area of a circle is 16 pi. What is it's circumference?

2) What is the area of a circle with diameter 12?

3) What is the area of an equilateral triangle with perimeter 12?

Any help is greatly appreciated. Thank you very much!

2007-08-16 09:52:49 · 4 answers · asked by Randy M 1 in Mathematics

Apart from water soluble and fat soluble, can someone give me another characteristic of vitamins?

2007-08-16 09:52:45 · 5 answers · asked by Anonymous in Biology

If the petrol car engine works at moderately high speed, while the car is stationary, ( The gearbox is not connected to the crank shaft ) continously for several hours with constant speed (RPM), does it overheat? or any kind of damage would be happen?

2007-08-16 09:51:54 · 7 answers · asked by saeed_x61 1 in Engineering

hey guys, can someone shed some light on this, i've tried doing research but havn't come up with the answer:

cite two characteristic features (with explanation) of the active site of an enzyme

Thankuu..xxx

2007-08-16 09:51:23 · 6 answers · asked by Anonymous in Biology

So I finally found a way to combine my two dream jobs. I want to become sometype of engineer, however I want to work part-time at the local fire station. The fire Dept. is more of a family thing, (I would be the fourth generation fire firefighter, and if I become chief then I would be a fourth generation Fire Chief) It is pretty neat, and it is something that I want to do. I can join when I turn 16 (Which is November) and become a cadet.

So for my job I would like to become an engineer who works on designing Fire Engines. What type of degree would I need? Or what type of degree should I pursue.

All help is appreciated. THANKS.

2007-08-16 09:50:59 · 2 answers · asked by Anonymous in Engineering

2007-08-16 09:48:58 · 1 answers · asked by Anonymous in Physics

2007-08-16 09:46:39 · 5 answers · asked by Lillian M 1 in Mathematics

2007-08-16 09:45:56 · 6 answers · asked by Anonymous in Physics

Can some one please help? Show balanced equaitions and cancellations.....

Problem #1:
Aluminum oxide is formed from the reaction of metallic aluminum with oxygen gas. How many moles of Aluminum are needed to form 3.4 moles of Aluminum oxide?
Hint: This is a simple ratio problem. Just use the molar ratio from the balanced equation. This was covered in 5.09. Mass is not involved.

Problem #2:
Determine the number of grams of NH3 produced by the reaction of 3.5g of hydrogen gas with sufficient nitrogen gas. (Check for diatomic elements).

Thanks for the help.....

2007-08-16 09:45:37 · 5 answers · asked by Anonymous in Chemistry

1/2p - 3p = 54 + 4p

^^ directions and answe rplz ^^

first one to gimme will get best answer

2007-08-16 09:45:17 · 10 answers · asked by Kwan L 2 in Mathematics

2007-08-16 09:43:36 · 6 answers · asked by mupinupe 1 in Mathematics

2007-08-16 09:40:41 · 12 answers · asked by Stephanie Ke 1 in Mathematics

In an impermeable barrier, let's say 1000 miles from the surface. Would the heat buildup eventually make it explode (thus presumably rebounding indefinitely inside there)? Or would it be able to absorb/distribute all that heat on its surface (and within) without catastrophic consequences? And if it would eventually detonate, how long before that would happen?

2007-08-16 09:39:25 · 6 answers · asked by Omar Cayenne 7 in Astronomy & Space

2007-08-16 09:37:26 · 5 answers · asked by Robert L 1 in Mathematics

thanx

2007-08-16 09:35:54 · 3 answers · asked by Anonymous in Chemistry

what will be the new period of the Moon?
Right now T = 28 days.


No rockets, just use long ropes to pull the rocks.

2007-08-16 09:35:12 · 4 answers · asked by Alexander 6 in Physics

i bought a dress and they gave 20 percent off of that. can anyone help me apeaaach

2007-08-16 09:35:05 · 7 answers · asked by Princess_Three 1 in Mathematics

thanx for every1 who helps me

2007-08-16 09:34:51 · 2 answers · asked by Anonymous in Chemistry

2007-08-16 09:33:37 · 3 answers · asked by Anonymous in Astronomy & Space

2007-08-16 09:28:56 · 4 answers · asked by Lillian M 1 in Mathematics

what is meant by the optimum pH of enzyme activity in terms of enzyme charge?

2007-08-16 09:28:32 · 6 answers · asked by Anonymous in Biology

(1)Smith works twice as fast as Legatos and three times as fast as Paruolo. If paruolo can complete a job in 12 hours, what part of the job can Legatos do in 6 hours?

I don't get how to setup the equation


(2) If 3 secretaries can type six manuscripts in 12 days, how many days will it take two secretaries to type three such manuscripts?

someone please explain how to do this one

2007-08-16 09:28:18 · 2 answers · asked by Zebra S 1 in Mathematics

2007-08-16 09:27:34 · 4 answers · asked by kellycolors 1 in Earth Sciences & Geology

2007-08-16 09:26:49 · 2 answers · asked by Anonymous in Physics

It has very little natural light, unless I leave the bathroom door open - are there any plants which cope well in these conditions?

2007-08-16 09:25:39 · 20 answers · asked by Anonymous in Botany

It is known in the mental heath field that placebo has a therapeutic effect. I have seen figures up to 30% benefiting substantially from placebo.

And what about belief in the healthing hand of God as a placebo? It can only do good healthwise.

Do you want a placebo drug from God?

2007-08-16 09:18:40 · 8 answers · asked by mic 2 in Medicine

2007-08-16 09:17:24 · 5 answers · asked by Lillian M 1 in Mathematics

living on the south east coast my whole life, i'm very familiar with hurricane safety, and tornado safety, but that won't do me any good in southern california! i've looked online at earthquake safety, but i want DETAILED answers, like, am i safer on the 1st or 2nd story of my house in and after an earthquake? online so far basically all i've found is to stay inside. to which i have to reply...DUH. can anyone give me or point me to safety tips as to which story of my house i should be on (no basement), and other good information? thanks!

2007-08-16 09:11:51 · 6 answers · asked by crazydaisyodu 3 in Weather