Science & Mathematics - 15 October 2006

In my opinion, I believe that the Nuke test that occured on Oct. 9, could cause worldwide earthquakes. Searching other quakes in the time period of the test, Japan, Taiwan, and the Philippines reported small to moderate sized quakes. Now that the Hawaiian Island had quakes, it sounds a little coincedential to me.

2006-10-15 07:54:18 · 14 answers · asked by speedbrds 1 in Earth Sciences & Geology

2006-10-15 07:52:56 · 5 answers · asked by :) 2 in Mathematics

Na2Cr2O7 my guess is Sodium Chromium Oxide. Thanks for taking ur tiime guys.

2006-10-15 07:52:37 · 5 answers · asked by avant1991 3 in Chemistry

2006-10-15 07:46:56 · 10 answers · asked by Zepueen 1 in Biology

2006-10-15 07:44:06 · 3 answers · asked by Brian n 1 in Earth Sciences & Geology

HELP ME PLZ!!!

2006-10-15 07:41:08 · 20 answers · asked by yourbiggestfan:) 4 in Mathematics

Pleas show work/explain how you got the answer.

The sum of two numbers is two. The difference between eight and twice the smaller number is two less than the larger. find the two numbers.

A real estate agent sold two homes and recieved commissions totaling $6000. The agent's commission on one home was one and one-half times the comission on the second home. Find the agents comission on each home.

A university employs a total of 600 teaching assistants abd research assistants. There are three times as many teaching assistants than research, Fund the number if research assistants employed by the university.

a 20-foot board is cut into two pices. Twice the length if the shorter piece is 4 ft more than the length of the longer piece. Find the length of the shorter piece.

A wire 12 ft long is cut inot two pieces. Each piece is bent into the shape of a squaer. The perimeter of the large square is twice the perimeter of the smaller square.Find the perimeter of the larger squa

2006-10-15 07:37:53 · 7 answers · asked by Poko 2 in Mathematics

Which of the following changes always results in a negative delta E (change in internal energy)?

a.) The system absorbs heat and does work.
b.) The system gives off heat and does work.
c.) The system absorbs heat and has work done on it.
d.) The system gives off heat and has work done on it.

2006-10-15 07:37:22 · 1 answers · asked by Anonymous in Chemistry

2006-10-15 07:37:05 · 2 answers · asked by Shannon B 1 in Astronomy & Space

2006-10-15 07:36:24 · 20 answers · asked by markie p 1 in Engineering

2006-10-15 07:34:14 · 17 answers · asked by Anonymous in Mathematics

so how many are there cause im lost .

2006-10-15 07:33:11 · 5 answers · asked by DR.Z 1 in Chemistry

An endothermic reaction is carried out in a coffee-cup calorimeter. Which statement is incorrect for this process?

a.) The temperature of the water decreases.
b.) The enthalpy change for the reaction is equal to qH2O.
c.)Heat is absorbed from the water.
d.) The enthalpy change for the reaction is positive.
e.) The products have higher enthalpy than the reactants.

or could someone at least explain this coffee-cup thing to me...because i don't understand its purpose or process...thx!

2006-10-15 07:32:55 · 2 answers · asked by Anonymous in Chemistry

to where a sophomore in high school can simply understand it?

2006-10-15 07:31:38 · 6 answers · asked by bosoxguru9802 1 in Biology

2006-10-15 07:31:26 · 8 answers · asked by Anonymous in Earth Sciences & Geology

what is the answer? don't worry, im not stupid, im in high math. i just wanna know if i can trick anyone or if anyone can explain it good.

2006-10-15 07:30:07 · 12 answers · asked by Bridget J. ♥ 4 in Mathematics

2006-10-15 07:29:54 · 7 answers · asked by Shushan A 2 in Biology

2006-10-15 07:29:35 · 4 answers · asked by wdmc 4 in Earth Sciences & Geology

Which of the following is true if work has been performed on a system?

a.) All objects are in the same place before and after the work is performed.
b.) No force is exerted on the system.
c.) An object in the system must have been moved against a force.

2006-10-15 07:27:57 · 1 answers · asked by Anonymous in Chemistry

2006-10-15 07:24:27 · 10 answers · asked by Shushan A 2 in Biology

this question is related by earthscience

2006-10-15 07:22:54 · 3 answers · asked by Anonymous in Earth Sciences & Geology

Square root of:
w+14=7

Now, I still don't see the actual steps to the algebrator, I asked the information section, and there is still not directons..just need help on Square roots

2006-10-15 07:20:22 · 2 answers · asked by SCHNITZEL 1 in Mathematics

2006-10-15 07:10:05 · 6 answers · asked by hell_bent_4_trouble 1 in Mathematics

2006-10-15 07:08:09 · 2 answers · asked by charles l 1 in Chemistry

Find the linearization of

1. 5x^2-3x=4, a=-5

2. (x)/(5x+8), a=0

3. tan x, a=pi

4. Use the linear approximation (1+x)^k is appox. 1+kx
Find an approx. for f(x)=(1-x)^4 for values of x near 0.

Find dy
5. y=7x^2 +3x +3

6. 6y^(1/2) -3xy +x=0

7. y=csc (6x^2-1)

8. Find approx. error |change in f -df|
x +x2, Xo=7, dx= .05

9. Write a diff. formula that estimates the given change in volume or surface area. The change in surf. area S=4(pi)r^2 of a sphere when the radius changes from r0 to (r0+dx)

10. A=(pi)r^2 .By approx. how much does the area of a circle decrease when the radius is decreasing from 20 cm to 1.8 cm. (use 3.14 for pi)

11 Estimate using linear approx.
(1.0005)^50

2006-10-15 07:06:34 · 3 answers · asked by Anonymous in Physics

The graph of a function is concave up on an interval. Describe the behaviour of the first derivative and the second derivative of this function on the interval.

2006-10-15 07:04:44 · 3 answers · asked by sunita s 1 in Mathematics

2006-10-15 07:04:22 · 8 answers · asked by Anonymous in Mathematics

1. A function has a local maximum. What is the sign of the derivative to the left of this value? to the right?

2. A function has a local minimum. What is the sign of the derivative to the left of this value? to the right?

2006-10-15 07:03:41 · 2 answers · asked by sunita s 1 in Mathematics

1. Express in your own words the sum and difference rules for differentiation. Use an example to illustrate each rule.

2006-10-15 07:02:52 · 2 answers · asked by sunita s 1 in Mathematics

A farmer had his own collection of zoo animals. When a census asked him how many birds and how many cows he had the farmer replied:

" Well I have 36 heads and 100 feet altogether"

The census takers had to figure out how many of each animal the famer had.

How many birds and how many cows were their?

2006-10-15 06:59:54 · 11 answers · asked by HotPink 1 in Mathematics