Science & Mathematics - 12 July 2007

2007-07-12 16:15:39 · 5 answers · asked by matt k 1 in Physics

The only thing I know about this is that they are used in jewelry. Is this a gemstone??

2007-07-12 16:14:29 · 3 answers · asked by Vernie 2 in Earth Sciences & Geology

If we were on various other planets, that we know about, what color would their skies be, and why?

I know that the sky is black if we are on the moon.

2007-07-12 16:14:26 · 10 answers · asked by Anonymous in Astronomy & Space

diagram:http://images.google.com/imgres?imgurl=http://instruct1.cit.cornell.edu/Courses/ansys/truss/images/truss.jpg&imgrefurl=http://instruct1.cit.cornell.edu/Courses/ansys/truss/index.htm&h=312&w=300&sz=15&hl=en&start=97&um=1&tbnid=cCLuBluOnI1aJM:&tbnh=117&tbnw=113&prev=/images%3Fq%3Dtruss%26start%3D80%26ndsp%3D20%26svnum%3D10%26um%3D1%26hl%3Den%26rlz%3D1B2DVFC_en___PH208%26sa%3DN

2007-07-12 16:13:48 · 3 answers · asked by danilo g 2 in Engineering

Could you please recommend any good universities which can offer a degree on this subject. I have a computer engineering degree but over the years, my interest for steam engines has changed to a passion and now, an obsession. I want to learn about designing small steam turbines, its fabrication, material selection, machining methods etc. Can I learn all of this under one degree? Where? Thanks !!
( I think it is not possible to learn these stuff online, am I right?)

2007-07-12 16:11:58 · 6 answers · asked by azmil_electric 1 in Engineering

2007-07-12 16:11:29 · 7 answers · asked by Terrence 1 in Zoology

We went to an Ob/Gyn who did an annual exam and now the insurance company won't pay for the visit and says the doctor billed everything wrong. The doctor says take it up with the insurance company. The insurance company says take it up with the doctors office. And we just keep getting bills for $2000 for an annual exam! What do we do? We can't afford that at all. We are just students. Is there someone out there that can help fix this? Is there a service like the Better Business Bureau for medical practices?

2007-07-12 16:10:20 · 6 answers · asked by Jitsen 2 in Medicine

2007-07-12 16:09:02 · 5 answers · asked by foxxymama 1 in Chemistry

I don't understand how to do this ...

The elements calcium, barium strontium, zinc, cadmium, and others combine with oxygen in the same ratio as magnesium. Write out the balanced equation for the reaction of these elements with oxygen.

I would be so grateful if anyone could help.

2007-07-12 16:07:39 · 3 answers · asked by ailee 2 in Chemistry

2007-07-12 16:07:34 · 4 answers · asked by foxxymama 1 in Physics

2007-07-12 16:05:08 · 10 answers · asked by Thushara P 1 in Geography

If you can, please also explain why hydrogen bonds are responsible for this phenomenon. Thanks.

2007-07-12 16:01:49 · 5 answers · asked by Anonymous in Chemistry

A mint has three machines captable of making coins. all three machines together can make 246 coins per minute. Machine A is twice as fast as machine B. Machine c can make 30 more coins per minute than machine B. How many coins per minute can machine B make?

2007-07-12 15:59:08 · 5 answers · asked by *05* 1 in Mathematics

table?

2007-07-12 15:57:19 · 3 answers · asked by clue_less 1 in Chemistry

Why are you suppose to seal sowed Venus Flytrap seeds in a ziplock bag? I put my sowed Venus Flytrap seeds in a ziplock bag and sealed it because thats what the instructions said that came with the seeds, theres a lot of condensation occuring in the bag and its creating a lot of water, is this good for the seeds to help them germinate? is that the reason for sealing them in the ziplock bag? Although all opinions are accepted, I need answers from experienced/proffesional people please.

2007-07-12 15:56:03 · 3 answers · asked by Asim I 1 in Botany

You find 38 coins consisting only of nickels, dimes and quaters, with a face value of $4.75. However, the coins all date from 1926, and are worth considerably more than their face value. A coin dealer offers you $8 for each nickel, $6 for each dime, and $22 for each quater, for a total of $410. How many dimes did you find?

2007-07-12 15:55:13 · 6 answers · asked by *05* 1 in Mathematics

2007-07-12 15:53:24 · 4 answers · asked by Anonymous in Zoology

2007-07-12 15:52:00 · 3 answers · asked by Mira 1 in Mathematics

Which ball has greater acceleration when it hits the ground? Which ball hits the ground first?

2007-07-12 15:51:26 · 7 answers · asked by clue_less 1 in Physics

Well I have a lot of trouble explaining stuff related to physics so it would be really nice if someone can help me..
As water waves approach a beach, their wavelength decreases. If the frequency of the waves does not change what must be happening to their speed explain?

Water waves near the base of a cliff often possess greater amplitude than those out a bit farther from the base, why?

A creast moves through a point, in what ways is the motion of that point like the motion of a ball thrown straight upward?

As a transverse wave travels along a spring, where is the speed of the spring greatest? and least?

2007-07-12 15:43:13 · 1 answers · asked by Anonymous in Physics

what will be the results of both when the other plant is exposed in light and the othrt one isn't?

2007-07-12 15:42:42 · 2 answers · asked by renz 1 in Biology

At Gwen's garage sale, all books were one price while all magazines were another. Joe bought 4 books and 3 magazines for $1.45 and Jane bought 2 books and 5 magazines for $1.25. What was the price of a book and what was the price of a magazine?

2007-07-12 15:41:14 · 8 answers · asked by Anonymous in Mathematics

Can someone please tell me what the speed of sound is? All I can find is equations and stuff. Thanks so much

2007-07-12 15:37:22 · 8 answers · asked by Kellersmommy 2 in Physics

Tickets for a concert were sold to adults for $3 and to students for $2. If the total receipts were $824 and twice as many adult tickets as student tickets were sold, then how many of each were sold?

2007-07-12 15:35:18 · 4 answers · asked by Anonymous in Mathematics

2007-07-12 15:26:29 · 7 answers · asked by melilli123 2 in Medicine

2007-07-12 15:24:57 · 6 answers · asked by Anonymous in Astronomy & Space

I want to know what causes it and what how it effects us.

2007-07-12 15:24:49 · 9 answers · asked by minniecutie101 1 in Earth Sciences & Geology

I know they migrate for long distances.

2007-07-12 15:24:10 · 1 answers · asked by bryce d 1 in Zoology

2007-07-12 15:23:00 · 3 answers · asked by zachary b 1 in Geography

2007-07-12 15:20:53 · 3 answers · asked by Stan 2 in Biology