Science & Mathematics - 28 November 2006

2006-11-28 04:56:45 · 11 answers · asked by lola7737 5 in Mathematics

1.the molten mixture of rock-forming subtances, gases,and water deep in earths mantleis called_______.
2.the ______is a belt of volcanoes around the rim of the pacific ocean.
3.the more ______that the magma contains, the thicker the magma is.
4.A(n) ______ happens when an explosive erruption hurls ash,cinder,bombs,and gases out of a volcano.
5.in a process called______, an ore is melted to separate the use full metal from other elements from the ore.
6.the property of____ is the mass of the minral sample per unit volume.



plz help!!
thanks for your time!

2006-11-28 04:56:31 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2006-11-28 04:55:45 · 2 answers · asked by Latasha N 1 in Astronomy & Space

If so why do people deny have some African ancestry..

2006-11-28 04:55:02 · 2 answers · asked by Anonymous in Earth Sciences & Geology

2006-11-28 04:54:54 · 3 answers · asked by flash1366 1 in Earth Sciences & Geology

In a study of air-bag effectiveness, it was found that in 821 crashes of midsize cars equipped with air-bags, 46 of the crashes resulted in hospitalition. Use a .01 significance level to test the claim that air-bag hospitaliztion rate is lower than the 7.8% rate for crashes of mid-size cars equipped with automatic safety belts.

2006-11-28 04:53:52 · 1 answers · asked by srt927 1 in Mathematics

1- If sodium is not replaced by anything
2- If it is replaced by H+ through ion exchange process

2006-11-28 04:53:14 · 3 answers · asked by aeugas z 1 in Chemistry

2006-11-28 04:52:56 · 3 answers · asked by Adrian G 1 in Physics

solve

2x+3y=8
x-2y=-3

show working please

2006-11-28 04:52:04 · 7 answers · asked by kim b 1 in Mathematics

Find the average value of the following function on the given interval: f(x)= x/(sqrt(x^2+16)), on interval [0,3]. I need to calculate the average value of f on [0,3]

Can anyone explain how to work this problem???

thanks for the help

2006-11-28 04:48:21 · 6 answers · asked by wasatchjeeper 2 in Mathematics

2006-11-28 04:47:54 · 5 answers · asked by shawnp089 2 in Medicine

Now the past few weeks I had awoken to find the lamp on, thinking it had malfunctioned or who knows why or how it turned on, now I am sure something is trying to turn it on at night, I was alone in the house and only my 1 year old was sleeping in her crib. I did a double take to get a good look at it and saw it using it's finger to try and touch the lamp and turn it on then it seemed to realize I saw it and was gone?? any ideas on what it was?

2006-11-28 04:47:50 · 6 answers · asked by b b 1 in Physics

whats the difference between static friction and kinetic friction...i know it sounds easy but i have to explain it. and idk how. plz help.

2006-11-28 04:45:55 · 8 answers · asked by nybabyblu 6 in Physics

does anyone know how many bones there are in the human hand. In the directors cut of king arthur when arthur is fixing gueniveirs hand, if you turn on one of the english subtitles it shows facts about the film and when he fixes her hand, it shows "there are 27 bones in the human hand" i am para-phrasing. got any medical info to back this up?

2006-11-28 04:45:07 · 3 answers · asked by chewbaccafuzzball 2 in Biology

1.) Solve for all values of x that satisfies the equation x- sqrt (x)=0 and show your work.

2.) what are the points of intersection of these two graphs, y=x and y= sqrt (x)

2006-11-28 04:42:11 · 6 answers · asked by jheld25 1 in Mathematics

Please show your work and order of operations, etc. Thank you.

2006-11-28 04:40:56 · 10 answers · asked by Anonymous in Mathematics

Excluding anti-biotics, that's to easy. But any other discovery or invention.

2006-11-28 04:38:10 · 16 answers · asked by robert2020 6 in Medicine

A) proton
B) electron
C) hydronium ion
D) hydrogen ion
E) hydride ion

2006-11-28 04:36:40 · 7 answers · asked by Donna G 1 in Chemistry

I have almost no idea at all what a stem cell is, but I have to do an essay on it. Please could someone explain in very simple words what a stem cell is and what use it has today. I already know it is unspecialised and may be used in the future to treat some diseases, but other than that, I need information. Please help me!

2006-11-28 04:35:10 · 10 answers · asked by **rainbow** 2 in Biology

The larger of two natural numbers is 3 more than the smaller. The square of the smaller exceeds twice the larger by 9. Determine the numbers algebraically.

show working please

2006-11-28 04:35:01 · 4 answers · asked by kim b 1 in Mathematics

1)H2O
NaCO3
NaOH
NaCI

2) Which of the follwing is an acid?
NaCI
KCI
LiCI
HCI

3)What happens when an acid is neutralized with a base?
a precipitate forms
a colour change occurs
a salt is formed
a bright light is seen

Again thanks for any help

2006-11-28 04:34:46 · 3 answers · asked by margarittanosalt 2 in Chemistry

age of earth ...

2006-11-28 04:34:44 · 13 answers · asked by daniel_2541 2 in Earth Sciences & Geology

What days do the fall, winter, spring and summer start? Like are we in winter already or still fall? How long to go before we get to the next season.

I know its different for different parts of the world, Im asking about America.

2006-11-28 04:33:59 · 9 answers · asked by LN 2 in Weather

i need to find the radius of the curved corner of a building to create an accurate template but cannot think of a way to find out exactley where the centre would be

2006-11-28 04:33:49 · 7 answers · asked by thames334 2 in Engineering

2006-11-28 04:33:11 · 2 answers · asked by JustMe 2 in Biology

how long & how hot

2006-11-28 04:32:16 · 2 answers · asked by Booker T "Right There" 5 in Earth Sciences & Geology

A 50. mg sample of iodine -131 was placed in a container 32.4 days ago. If its half-life is 8.1 days, how many milligrams of iodine131 are now present?

2006-11-28 04:31:26 · 6 answers · asked by Donna G 1 in Chemistry

everybody pees. but do lions pee?

2006-11-28 04:29:47 · 11 answers · asked by Anonymous in Zoology

MATH HELP PLEASE............
1.)Find the equation in the y = mx + b form of the line that contains the point (3,2) and has a slope of 4/3.

2.)The slope of the line 3y = x - 3 is

2006-11-28 04:29:33 · 8 answers · asked by whatchaknowboutit 1 in Mathematics

obviously they would sit on their fertilized eggs, but if they lay unfertilized eggs, do they know to simply leave them behind or do they try to incubate them anyway?

2006-11-28 04:28:34 · 6 answers · asked by rdubya 1 in Zoology