Science & Mathematics - 2 October 2007

How would I graph the line using the slope and y-intercept

2007-10-02 12:34:09 · 2 answers · asked by Anonymous in Mathematics

2007-10-02 12:33:00 · 2 answers · asked by salvatore g 1 in Physics

How many centimeters out of the water does a 1.00 cm cube of wood with a density of 0.85g/ml float?

2007-10-02 12:31:28 · 1 answers · asked by Anonymous in Chemistry

1. x + y = 7
x - y= 7

2. 6x + 7y = 19
x + y = 5

3. 3x - 6y = -3
6x + 3y = 9

2007-10-02 12:30:01 · 2 answers · asked by PIMP I 1 in Mathematics

I need to move empty boxes from one conveyor to another by means of forced air. The empty box activates a sensor which then releases forced air at a different location to move the box on to a different conveyor. I need to keep the box straight as it is transferred to the other conveyor.

2007-10-02 12:26:34 · 1 answers · asked by DALLAS J THE SWEED 1 in Physics

explain why.

2007-10-02 12:25:08 · 2 answers · asked by Abdul-Rehman H 1 in Biology

2007-10-02 12:24:29 · 1 answers · asked by JAMES 4 in Physics

Gravitational force: Fg= Gm1m2 / (D)^2 Fg= gravitational force. G= gravitational constant = 6.67 x (10^-11 N.m^2/kg^2) m1= mass of one object m2= mass of other object d= distance between the two masses.

Cavendish, in his experiment to determine "G" suspended a mass of 167 kg at a distance of 0.200 m from a mass of 0.800 kg. If the force of attraction as indicated on the scale of his torsion balance was 2.23 x 10^-7 N, what value did he get for "G".

Determine the distance of seperation of two 10.0 kg masses in outer space if the gravitational force of attraction between them is 5.50 x 10^-8 N.

While picking up moon rocks on the moon, the Berenstain Bears wanted to determine the mass of a particular rock, but they had no equipment for weighing objects. They did know however that the mass of the moon is 7.34 x 10^22 kg and the radius of the moon is 1.74 x 10^6m and using their Newton sprint scale, they found the weight to be 77.6 N. What is the mass of this particular rock.

2007-10-02 12:24:03 · 3 answers · asked by Anonymous in Physics

1. y = 2x and y=2x - 4

2. 2y + 3x = 5, 3y - 2 x 5

3. 1/3x + 2/3y = 3/5 and 2x + 4y = 7

4. 2y + 3x = 5 and 3y + 3x = 5

The help would be appreciated.

2007-10-02 12:23:08 · 4 answers · asked by PIMP I 1 in Mathematics

Im in grade 8 so nothing to complicated

2007-10-02 12:21:55 · 5 answers · asked by SerbianRoots 3 in Engineering

2007-10-02 12:21:45 · 4 answers · asked by daryl r 1 in Chemistry

2007-10-02 12:20:55 · 15 answers · asked by Anonymous in Medicine

I'm supposed to do a report on the Cone Penetration Test, but I am having a little trouble. What does it mean when it says the CPT is a "versatile sounding method (used to determine the materials in a soil profile and estimate their engineering properties)"?? What is "versatile sounding" ???

thank you, sorry if this should be obvious and isn't to me. Thanks!!!!

2007-10-02 12:20:28 · 2 answers · asked by Anonymous in Engineering

A ring wheighing 7.6256g in air weighs 6.9465g when suspended in water at 24 degrees C. If the density of gold is 19.3g/ml, is the ring made of good or some other material?

2007-10-02 12:19:52 · 1 answers · asked by Anonymous in Chemistry

I heard there is a phenonmen a lot of people and writers talk about, like one called divine matrix of the universere where when you really wish for something, it will become true.
But I'm currently in spat with a friend and I tell them its not this force, but being psychic that determines that you think you wish for.
Case in point ( and this is a small-scale example):
I'm at home and I wonder about a friend who never calls. About less than five minutes later, she calls.
Now, did I "will" her to call me, or did I "sense" she would call.
So, what to you think it is around us?
Force that can be manipulated or Psychic energy?

2007-10-02 12:19:47 · 4 answers · asked by Anonymous in Astronomy & Space

someone. I am becoming interested in spells that could help and enhance my life. So as a beginner I would also like to know what happens to you if you do a money spell. I mean it's not bad so will it backfire? If it makes your life worse I won't do it, but I want to know if it's bad or not. And the previous question if it works or not. Thank you.

2007-10-02 12:19:19 · 16 answers · asked by Britney 1 in Parapsychology

2007-10-02 12:18:11 · 1 answers · asked by regine 1 in Biology

please be serious this is for homework!

2007-10-02 12:18:09 · 4 answers · asked by lala. 3 in Biology

I mean the ones from outer space. Do you think they are on Earth?

2007-10-02 12:16:47 · 7 answers · asked by TIMM1114 2 in Astronomy & Space

how do u solve this inequality?
could you please do it in a step by step process showing all the work so i can learn how to do it?
thanks sooo much!

3>= 13x + 6 > -4

2007-10-02 12:15:23 · 3 answers · asked by Angelica 1 in Mathematics

The directions are to name the property shown. The property can either be communutative property OR associative property.

1.) 3 x ( 8 x 4 ) = ( 3 x 8 ) x 4

2.)3 x 8 = 8 x 3

3.) 4 + 7 = 7 + 4

4.) 8 + ( 9 + 7 ) = ( 8 + 9 ) + 7

ok there are the problems.. this is what I THINK the answers should be
1.) Associative Property

2.) Commutative Property

3.)Commutative Property

4.)Associative Property

Is it correct?

2007-10-02 12:14:59 · 5 answers · asked by Animal Luverr™ 4 in Mathematics

In the winter, grass often dies near roads that have been salted to remove ice. What causes this to happen?

2007-10-02 12:11:26 · 11 answers · asked by melanie k 1 in Botany

15x^2+4x-35=0

i know i have to factor it out...
(15x ____ ) ( x ____ )
what goes in the blanks?
and why? and is there a trick to remember how to do it quickly?
thanks so much!

2007-10-02 12:11:18 · 3 answers · asked by Angelica 1 in Mathematics

a. glycogen
b. starch
c. lipid
d. glucose

2007-10-02 12:10:54 · 4 answers · asked by whoa.saruhx33 1 in Biology

Is it times it it by 100? Thanks guys

2007-10-02 12:08:56 · 11 answers · asked by 5ipodsathome 1 in Mathematics

Saccharin (C7H5NO3S) is sometimes dispensed in tablet form. Ten tablets with total mass of 0.5369 g were dissolved in water. They were oxidized to convert all the sulfphur to sulphate ion, which was precipitated by adding an excess of barium chloride solution. The mass of BaSO4 obtained was 0.5118 g.

What is the average mass of saccharin per tablet in mg?
What is the average mass percent of saccharin in the tablets?


I'm not sure if I'm on the right track:
.5032gBaSO4 / 233.33g =.001085mol BaSO4
.001085mol * 32.07gS=.03480gS

Not sure where to go from there. Can anyone help?

2007-10-02 12:08:45 · 1 answers · asked by Nhat t 1 in Chemistry

By how much does a speed of a vehicle moving in a straight line change when it is accelerating at 6km/h-s ?

2007-10-02 12:07:25 · 2 answers · asked by missybitsy 1 in Physics

You push a 34.4 kg crate at a constant speed of 1.66 m/s across a horizontal floor with coefficient of kinetic friction 0.34. The acceleration of gravity is 9.8 m/s^2.
a) At what rate is work being done on the crate by you?
b) At what rate is energy being dissipated by the frictional force?

I found the answer to a) which was 190.23 W. But I don't know what to do for part b. Please help!!

2007-10-02 12:06:35 · 1 answers · asked by Ron108 1 in Physics

specifically under a COLD fusion reaction...or when the Hindenburg blew up (if it was a pure oxygen environment)

2007-10-02 12:06:14 · 3 answers · asked by Anonymous in Chemistry

help....:p

2007-10-02 12:05:25 · 2 answers · asked by omgr0le.play 2 in Biology