Science & Mathematics - 11 September 2007

what's the volume of a 2.80g silver ring? (Ag is silver)

2007-09-11 14:00:31 · 2 answers · asked by Anonymous in Chemistry

7 [] 3 [] -4 = -5

30 [] 12 [] - 2 = -5

First person to answer correctly gets BEST ANSWER!

Woohoo, good luck. =D

2007-09-11 14:00:13 · 6 answers · asked by Anonymous in Mathematics

1. How many days after full moon do you see the third quarter?

a. 7

b. 14

c. 21

d. 28

2007-09-11 13:59:59 · 4 answers · asked by Binky 3 in Astronomy & Space

just for science, just for my dumb friend, help his stupid *** please.

2007-09-11 13:59:10 · 3 answers · asked by Denny-Levesque 5 in Weather

For the Function N=6.21/(0.035 + 0.45^t), use a table to find the intial value. Also determine, using a table whether there is a limiting value and if so calculate it's value.

2007-09-11 13:58:56 · 1 answers · asked by Melanie H 1 in Mathematics

Without starting an argument about whether or not generic medications are equal in the active ingredient(s) -- as they are legally supposed to be under US law.....

Let's assume that they are the same (or if they aren't, please only post a comment if you have some really firm evidence that says otherwise, other than 'it just feels different' since that can be from a placebo or other effect) for the sake of this question:

If they are the same, why does the doctor have the option of marking "Do Not Substitute" on each prescription form that you give to the pharmacist? For a very small number of people, maybe an inactive filler might have an allergic reaction to someone, but I wouldn't think that's common enough to have a checkbox on every form.

Is there a good way to explain what this would be used for? Thanks!

2007-09-11 13:58:38 · 4 answers · asked by someoneoutthereishere 2 in Medicine

ok we're doing inverse and joint variations and this is the question:

The force F needed to loosen a bolt with a wrench varies inversely with the length L of the handle. Write an equation relation F and L, given that 250 lbs of force must be exerted to loosen a bolt when using a wrench with a handle 6 inches long. How much force must be exerted when using a wrench with a handle 24 inches long?

2007-09-11 13:58:29 · 1 answers · asked by pepsi 1 in Mathematics

Always been curious. I don't doubt the big bang, but where did all that matter come from before it got dense, and then exploded? Or is this one of the things that we still don't have a clue about?

2007-09-11 13:58:14 · 9 answers · asked by Jesse G 1 in Physics

i just cant figure it out, please help.

Fe2O3 + Br2 --> FeBr3 + O2

and do i have it right? im not 100% sure about the subscripts.

2007-09-11 13:56:39 · 1 answers · asked by ......//;' 4 in Chemistry

Of the result of

120*75

The answer is 9000 and I think it is two, but how do I show that in the solution

2007-09-11 13:55:32 · 2 answers · asked by Nhat t 1 in Mathematics

ok i don't get this one either.. what does this question mean? Find a number with a square root between each of the following numbers.
6 and 7 _____
5 and 6 _____
10 and 11 _____
12 and 13 _____
13 and 14 _____
15 and 16 _____

( the ___'s are where you put the answer )

2007-09-11 13:53:38 · 20 answers · asked by Anonymous in Mathematics

Describe the set of all points (x,x)in the coordinate plane. The set of all points (x,-x)

2007-09-11 13:51:57 · 2 answers · asked by Anonymous in Mathematics

i want to know what other people think.
like, does our universe end?
are there multiple universes in one huge universe (like bubbles in a bath)
do you think is there life anywhere else?
do you think there is a paralell (how ever you spell it) universe (with people exactly like us just opposite)?
where do you think black holes end up (whats on the other side)?
What are some of ur personal, creative ideas? i wanna know. cuz i think its all really cool.

2007-09-11 13:51:48 · 9 answers · asked by Anonymous in Astronomy & Space

Write Each as a improper fraction

3 4/7 6 1/5

Write Each as a Improper Fraction

31/4 47/9

2007-09-11 13:48:13 · 9 answers · asked by Anonymous in Mathematics

2007-09-11 13:48:01 · 3 answers · asked by EGGO 2 in Biology

what type of silicate structure does each have and how would you distinguish between them on the basis of cleavage?

2007-09-11 13:47:49 · 4 answers · asked by Tammy 2 in Earth Sciences & Geology

2007-09-11 13:45:44 · 3 answers · asked by Anonymous in Zoology

what property of these metals would allow such a separation!?

2007-09-11 13:45:14 · 9 answers · asked by ♥♥♥♥♥ 1 in Chemistry

2007-09-11 13:45:05 · 2 answers · asked by Hannah C 1 in Mathematics

2007-09-11 13:42:08 · 28 answers · asked by Anonymous in Mathematics

is this right?
2 divided by 3 =2.333333333

2007-09-11 13:41:22 · 12 answers · asked by Anonymous in Mathematics

which zeros in each number are significant?
0.0224
3.000
3000
0.004300
0.00800
0.00967
0.023

2007-09-11 13:38:19 · 4 answers · asked by =] 1 in Mathematics

1) When given two points, how can you write the equation of a line in standard form?

2) How would you simplify an equation like: (sqrt(18) + sqrt(8))/(sqrt(6))?

3) Lastly, how would simplify (-2a^(2)x^(3)y^(5))^4

2007-09-11 13:36:58 · 9 answers · asked by Turkey M 4 in Mathematics

y= -2x+3 how do i graph this

2007-09-11 13:36:41 · 10 answers · asked by hurryuptrivia 1 in Mathematics

I am learning number systems in school. We need to know about "natural numbers", "whole numbers", "Integers", "rational numbers", and "irrational numbers". I already know the definitions and examples, but what I am wondering about are the symbols. What are the symbols used for these terms?

2007-09-11 13:35:20 · 1 answers · asked by Cat >^..^< 3 in Mathematics

Besides the Medium

2007-09-11 13:34:55 · 1 answers · asked by Tony 2 in Physics

There are four children in a family. The sum of the squares of the ages of the three youngest children equals the square of the age of the oldest child. How old are the children?
A.1,4,8,9
B1,3,6,12
C.4,5,8,10
D. 2,3,8,16

Show the work if you can.

2007-09-11 13:34:29 · 1 answers · asked by ibesheila 2 in Mathematics

A car starts from rest and travels for 4.9 s with a uniform acceleration of +1.2 m/s2. The driver then applies the brakes, causing a uniform acceleration of -2.2 m/s2. The breaks are applied for 1.70 s.

(b) How far has the car gone from its start?

2007-09-11 13:33:43 · 2 answers · asked by Anonymous in Physics

A parachutist descending at a speed of 9.40 m/s loses a shoe at an altitude of 31.60 m.

(b) What is the velocity of the shoe just before it hits the ground?

2007-09-11 13:32:14 · 2 answers · asked by Anonymous in Physics

A boy sledding down a hill accelerates at 1.20 m/s2. If he started from rest, in what distance would he reach a speed of 5.00 m/s?
dont need work just need answer

2007-09-11 13:32:05 · 1 answers · asked by Anonymous in Physics