Science & Mathematics - 1 December 2007

How will this field look like by the year 2015?
How will it look like by 2030?

Up or down in terms of demand and pay?

I don't know much about it but I was considering Geology as a field and petroleum geologists have a decent salary, but I was wondering if it would fluctuate up or down depending on the oil demand.

2007-12-01 14:06:44 · 4 answers · asked by Anonymous in Earth Sciences & Geology

I have been trying this question for close to two hours now and have gotten it incorrect three time. I would appreciate any help!

The spring has a constant of 30 N/m and the frictional surface is .3 m long with a coefficient of friction μ = 1.02. The 4 kg block depresses the spring by 17 cm, then is released. The first drop is 1.4 m and the second drop is 1 m. How far from the bottom of the cliff does it land? Answer in units of m.

I posted the same question on cramster so I could draw you a picture. http://answerboard.cramster.com/phys...-151971-0.aspx

I tried to find the energy stored in when it is compressed at distance 1 by doing
w = Fd ...w = (30)(.17)
After that, I tried to find the time it took to fall at both place, but I fell short of information.
And then I tried to athe formula I found in my book but I wasn't sure what went where. Now I am at a dead end and am extremely confused. Will someone please help?!?!!

2007-12-01 14:06:26 · 1 answers · asked by Anonymous in Physics

Its for a debate. I have to say why dogs are better than cats. May I have some help?
Thankyou x
Also if you could say why cats are better ill think of some refutes ^^

2007-12-01 14:01:57 · 4 answers · asked by Anonymous in Zoology

In the following exercise, use the given vectors to find v X w and v X v.

v = -8i – 3j. w = -10i – 5j

2007-12-01 14:00:16 · 3 answers · asked by ambriz_jesus20 1 in Mathematics

In the following exercise, find the unit vector that has the same direction as vector v.

v = 4i – 2j

2007-12-01 13:55:11 · 2 answers · asked by ambriz_jesus20 1 in Mathematics

I like honey

2007-12-01 13:52:54 · 3 answers · asked by Anonymous in Zoology

for history HOMEWORK

2007-12-01 13:47:07 · 21 answers · asked by Jonathan S 2 in Geography

2007-12-01 13:47:01 · 9 answers · asked by Extreme 2 in Earth Sciences & Geology

When a group of researchers crossbreed Group 1 of Obese mice, with normal mice, they got ¾ normal, and ¼ obese mice. When they mated the obese mice with another obese mice in the original group, they got 100% obese mice. This means that the obese mice is recessive.
Group two did the same to their group of obese mice.
But when group one obese mice and group two obese mice mated, all the mice (100%), became normal. Instead of getting obese mice, why are they all normal mice?

2007-12-01 13:46:30 · 3 answers · asked by owaifkahlfkjh 2 in Zoology

Just curiosity.

2007-12-01 13:46:17 · 5 answers · asked by Anonymous in Medicine

Im talking about scientist of all profesions. They tell use how the earth was made, how old dinosaur bones are, how far the earth is from other planets, and all sort of others...
How do you know there not just giving us answers, can they be trusted.
Why should we beleive them when they cant even tell us why all these ships and aircraft disapear over the burmada triangle, something we know that is a fact?
Also they cant tell me how many trees are on this earth, something thats now and present, why should we beleive all these other things they tell us?

2007-12-01 13:45:06 · 20 answers · asked by Speedstar 5 in Earth Sciences & Geology

2007-12-01 13:45:02 · 1 answers · asked by CorruptiC 2 in Chemistry

Put few drop soap liquide in 50 ml solution of calcium chloride
Please give me a formula chemistry and how can made clear color if is cloud solution. Thank you so much.

2007-12-01 13:42:32 · 1 answers · asked by U68Y 2 in Chemistry

2007-12-01 13:41:51 · 1 answers · asked by nil 1 in Physics

In the following exercise, find the quotient z1 / z2 of the complex number. Leave the answer in polar form.

z1 = 2 + 2i
z2 = 1 + i

2007-12-01 13:41:22 · 2 answers · asked by ambriz_jesus18 1 in Mathematics

In the following exercise, find the product of the complex number. Leave answer in polar form.

z1 = 1 + i
z2 = 2 + 2i

2007-12-01 13:40:38 · 2 answers · asked by ambriz_jesus18 1 in Mathematics

In the following exercise, write each complex number in rectangular form. If necessary, round to the nearest tenth.

7(cos(3Pi/2) + isin(3Pi/2))

2007-12-01 13:39:01 · 1 answers · asked by ambriz_jesus17 1 in Mathematics

In the following exercise, plot each complex number and find its absolute value.

z = 3

2007-12-01 13:37:01 · 2 answers · asked by ambriz_jesus17 1 in Mathematics

Can you please help me understand how the answer of this question is (7π /15)?

The question is: Let R be the region bounded by y=x^2, y=0, and x=1. Compute the volume of the solid formed by revolving R about the line y=1.

I know that V=π (integral sign) A(x)^2 dx.

So I want to set it up as V= π (int) sqrt(x) dx with interval [1,0]. However, it's not working out. Can somebody please enlighten me?

2007-12-01 13:34:37 · 2 answers · asked by Anonymous in Mathematics

I want to make something like a crystal radio to light up a small LED. I am not near a station, so I am guessing it wont be enough to power an LED, so what if I use a capacitor to collect the energy and then only light up the LED for a few seconds at a time?

Is this possible and if it is how can I do it?

2007-12-01 13:34:27 · 8 answers · asked by worried person 1 in Engineering

2007-12-01 13:31:00 · 1 answers · asked by Anonymous in Mathematics

which is the limiting reactant...say you wre using 25 g of each, which would be limiting and why?

2007-12-01 13:30:16 · 4 answers · asked by Christine B 1 in Chemistry

why doesn't heating the water to find the amount of water in the hydrated crystal not suitable for all hydrates

2007-12-01 13:28:56 · 3 answers · asked by JT 1 in Chemistry

this equation.

5-/x+4/<-3

2007-12-01 13:26:33 · 3 answers · asked by J 2 in Mathematics

2007-12-01 13:25:32 · 7 answers · asked by ewweath 2 in Geography

CH=CH-CH2-CH2-CH2-CH2 + Br -->

CH3-C=O on top of the C and an -H on top of the C too -->

2007-12-01 13:24:19 · 1 answers · asked by I don't know 2 in Chemistry

2007-12-01 13:19:20 · 3 answers · asked by Bakhtiar H 1 in Mathematics

CH3-CH2-NH2
NH2-CH2-CH2-CH2-NH2

2007-12-01 13:18:41 · 1 answers · asked by I don't know 2 in Chemistry

2007-12-01 13:17:03 · 4 answers · asked by Mkanzie 1 in Earth Sciences & Geology

2007-12-01 13:09:35 · 2 answers · asked by crazinati91 1 in Chemistry