Science & Mathematics - 27 January 2007

Vibrations caused by earthquakes can be measured by a ____________. Vibrations the earth's crust are also known as __________________ , which are produced during a earthquake. The point where the energy in an earthquake is first released is the ______________. The record that a seismograph makes is called a ___________________ and is made up of a series of zigzag lines.

2007-01-27 05:02:52 · 8 answers · asked by Anonymous in Earth Sciences & Geology

What are the reasons for the acidic nature of acetylsalicylic acid (aspirin)??

2007-01-27 05:01:42 · 3 answers · asked by Pooh 4 in Chemistry

Let f(x)= x^2-5x+5

f(1+ root 3)


f(1+root 3) =


Can someone please explain this equation to me? I'll give best answer :)

2007-01-27 05:01:39 · 5 answers · asked by mgunterksu 1 in Mathematics

2007-01-27 05:01:35 · 5 answers · asked by bonz 1 in Weather

Simplify: –(–(–3)).

2007-01-27 05:00:52 · 10 answers · asked by Dave 4 in Mathematics

It is used for bronchial provocation any info wud be g8!

2007-01-27 04:59:46 · 1 answers · asked by liverpoolfc_lover 2 in Medicine

Jacob must choose a number between 61 and 107 that is a multiple of 3 , 6 , and 8 . Write all the numbers that he could choose.

2007-01-27 04:58:52 · 9 answers · asked by Anonymous in Mathematics

Just need an awnser, i think i got this wrong on the test, but if you would like to explain, your more than welcome.

A Plane travels due north at 200 km/h
The plane is being affected by wind traveling 50 km/h from west to east. How fast is the plane going relavtive to the ground. I said about 219. Thanx

2007-01-27 04:58:49 · 1 answers · asked by The Dude 3 in Mathematics

how

2007-01-27 04:53:50 · 5 answers · asked by ~kArIn***!<3 1 in Astronomy & Space

2007-01-27 04:53:46 · 4 answers · asked by goring 6 in Earth Sciences & Geology

2007-01-27 04:53:32 · 3 answers · asked by 000123 2 in Biology

How can I change x/(3x+2) into 1/3 - 2/(9(3x+2)
Thanks

2007-01-27 04:53:22 · 2 answers · asked by Philip J 2 in Mathematics

the experiment was adding 1M NH4Cl to a 0.1M NH4OH soln which had phenolphthalein indicator in it. The solution went from pink to colorless, indicating that [NH4+] went up, [OH-] decreased.

then, we added some concentrated 6M NH4OH, which ions' concentration are added to the equilibirum? both [Nh4+] and [OH-]? and how does the change in [OH-] affect [H3O+]?

Thank you!

2007-01-27 04:53:12 · 1 answers · asked by shuttlegirl 2 in Chemistry

Just need an awnser, i think i got this wrong on the test, but if you would like to explain, your more than welcome.

A Plane travels due north at 200 km/h
The plane is being affected by wind traveling 50 km/h from west to east. How fast is the plane going relavtive to the ground. I said about 219. Thanx

2007-01-27 04:52:17 · 4 answers · asked by The Dude 3 in Physics

∫c(x+y+z)dx+xdy-yzdz, where c is the line segment from (1,2,1) to (2,1,0)

2007-01-27 04:51:38 · 2 answers · asked by Astalav 1 in Mathematics

Project Criteria: The size of a shoe box. ~The protection for the egg must be engineered, not just filled with stuff.~No type of packing material will be allowed. This includes but may not be limited to such items as : bubble wrap, cotton balls, tissue , styrofoam pellets, cronstarch pellets, pillows, stuffed animals, shaving cream, paper, ballons or egg crate foam. No type of food may be used as packing material. This includes : jello, marshmallow, popcorn, or peanut butter,~ No wooden or metal boxes~No parachutes or helium filled balloons will be allowed~The egg will be provided at the time of the drop which you will then have to insert it into your project~ No boxes will be accepted that are preloaded with an egg. And it must have physics behind the design. Including Newtons laws of motion, terminal velocity, momentum, and gravity.

Thanks for the help ahead of time.

2007-01-27 04:50:58 · 7 answers · asked by Anonymous in Physics

2007-01-27 04:50:55 · 12 answers · asked by goring 6 in Astronomy & Space

I am doing this packet, and I really need your help!!

2007-01-27 04:50:02 · 9 answers · asked by Kazzy 2 in Zoology

2007-01-27 04:49:30 · 7 answers · asked by cutie_pie 1 in Astronomy & Space

Structure: Correct Order
bladder ---------
Bowman's capsule ---------
calix ---------
collecting duct --------
distal convoluted tubula ---------
renal artery ---------
renal artery ---------
renal pelvis ---------
ureter ---------
urethra ---------
urethral meatus ---------

2007-01-27 04:49:15 · 2 answers · asked by Anonymous in Biology

2007-01-27 04:49:08 · 1 answers · asked by goring 6 in Astronomy & Space

2007-01-27 04:47:52 · 2 answers · asked by goring 6 in Astronomy & Space

They take out of the ground gallons of oil every day..this must weigh considerably..would it therefore alter the weight ratio of the world,,i.e. if you put a weight inside a ball and spin the ball it turns eratically..not only that the motor that turns the earth is not being lubricated..(joke)

2007-01-27 04:47:19 · 6 answers · asked by silver44fox 6 in Earth Sciences & Geology

ok if m + n=3, and m squared + n squared=6, thn what does m cubed + m cubed equal?

2007-01-27 04:47:13 · 5 answers · asked by balla24 1 in Mathematics

2007-01-27 04:47:00 · 4 answers · asked by parham 1 in Mathematics

n in N
Maybe by usin induction or by arythmetic ang geometric progresions!

2007-01-27 04:46:07 · 7 answers · asked by platinto 2 in Mathematics

Hi everyone,

If c (vector b)- (vector a) = -3/4d (vector a) + 1/4d (vector b) , where
c and d are constant unknowns , can you conclude that

d=4/3 and c=1/3 through direct comparison of the coefficients of vector
a on the right hand side and the coefficients of

vector a on the left hand side to find d and then do the same for the
coefficients of vector b?

Is there any rule for using direct comparison? I feel that the vectors
must intersect before you can use direct comparison

because if you use the i, j , k in column form to replace vectors b and
a, they must intersect in order for all three levels of the

right and left hand side to have the same c and d. I'm getting confused
so anyone has any explanation?

I usually move all vector b to one side and all vector a to one side and
use the rule that if (c-1/4d)(vector b)= (1-3/4d)(vector

a), since vector a and vector b are not parallel, for vector b to be
equal to vector c, c-1/4d=0 and 1-3/4d=0.

2007-01-27 04:38:39 · 2 answers · asked by Anonymous in Mathematics

In other words, is sea level (0 m) the same here as in China

2007-01-27 04:37:53 · 3 answers · asked by zap 5 in Geography

1. A chemical reaction in which the products can regenerate the original reactants is a
a.forward reaction.
b.reaction rate.
c.reversible reaction.

2. Ninette wants to sweeten her iced tea. She looks in the restaurant's sugar dish and sees regular white granulated sugar and a packet of natural sugar. She opens each and sees that the natural sugar has very large crystals, much larger than the granulated sugar. Which sugar would be more likely to dissolve without Ninette having to stir the tea? Explain.

2007-01-27 04:36:06 · 1 answers · asked by nice too meet you. 4 in Chemistry

Find the slope and the y-intercept.
y = 7x
one more
graph of the line with slope –2 and y-intercept (0, 0). Then graph the line.
thanks

2007-01-27 04:35:57 · 2 answers · asked by dee free 2 in Mathematics