Sunday
September 21, 2014

Posts by amber


Total # Posts: 1,127

physics
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the two naturally occurring electrons is removed. The radius of the orbit is 2.65 10-11 m. Determine the magnitude of the electron's ...
September 2, 2009

physics
The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.70 µC; the other two charges have identical magnitudes, but opposite signs: q2 = -4.50 µC and q3 = +4.50 µC. Determine the net force (magnitude ...
September 2, 2009

physics
The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.70 µC; the other two charges have identical magnitudes, but opposite signs: q2 = -4.50 µC and q3 = +4.50 µC. Determine the net force (magnitude ...
September 2, 2009

Geometry
find the coordinates of the missing endpoint given that S is the midpoint. Problem: T(-4,3),S(-1,5)
September 1, 2009

Preschool dilemma
well kids like to be read to so you could have story time. In my school when I was in third grade I got to do a product with the preschools. from Amber, P.S. what is a cow on sale?/riddle
September 1, 2009

math
i've got a question i need help on i've got to use braces, an ellipis, and digits to illustrate the set of negative odd numbers whats that suppose to mean
August 25, 2009

math
okay so i divided each side by 7 heres what i came up with 52/7 = 7R3 7/7=1 so would i take the answer from those and multiply to get my answer
August 24, 2009

math
i've got a problem i need help on its 52 * 7 = 7m i need to know which property to use to find the missing number
August 24, 2009

math
edwardo owned 6/7 of a family business. He sold 1/5 of the business to his son. What portion of the business does he still own/
August 24, 2009

science
i've got a question does anyone know what a concept map is?
August 20, 2009

science
i've got a question that i need help on what problems could occur if scientists didn't communicate the results of their investigations
August 20, 2009

math
question how would you subtract 1987 - 2014 = the answer i got is -27 or do i switch it
August 20, 2009

math
would it be equal
August 20, 2009

math
I've got a problem i need help on i need to find the proper comparison symbol the problem is xy yx
August 20, 2009

math
I've got a problem i need help on. i've got to use digits and other symbols to write the product of 5 and 2 is greater than the sum of 5 and 2 here is what i came up with (5*2) (5+2) i'm not sure what to do next
August 20, 2009

ap english
in slaughterhouse 5 what is the resolution of Billy being shot before he masters his fate?
August 20, 2009

math
i've got a question in my math its wanting to know why is the 1 called the multiplicative identity
August 19, 2009

math
I've got a problem i'm suppose to use number 3 and 4 to illustrate the communtative property of multiplication using a dot to indicate multiplication so would i write it like this 4*3 or 3*4
August 19, 2009

English
I've got a question i've got to use one of these words and, or, but, or nor to make the sentence flow smoothly Then Louise snagged the ball. She tied the score I thought about putting and in between ball and she would that sound right
August 19, 2009

math
i've got another problem the question is which counting numbers are also whole numbers i read this part in my book (the set of whole numbers does not include any numbers less then zero) so would it mean the numbers 1- 9 that are the whole numbers
August 17, 2009

math
i've got a problem the question is what is another name for counting numbers
August 17, 2009

math
heres what i came up with (6*6)+(6/6)= would that be the way to write it
August 17, 2009

math
i've got another problem my problem is when the product of 6 and 6 is divided by the sum of 6 and 6 what is the quotient would i have to divide first
August 17, 2009

math
got a question my problem is when the sum of 5 and 6 is subtracted from the product of 5 and 6, what is the difference would i have to divide or subtract
August 17, 2009

English
I need help with this one O/Ph. D. M. D. D.O
August 13, 2009

English
has anyone ever done the Thinkers worksheet before..if so where can i get all the answers
August 13, 2009

English
The word "can" is used to refer to?
August 13, 2009

irrational numbers?!
Is √4 Irrational?
June 15, 2009

Algebra
Which of the following ordered pairs is a solution of the given system of linear equation of -5x+4y=9 x-4y=11 A. (–4, –5) B. (5, –4) C. (4, 5) D. (–5, –4)
June 10, 2009

Chemistry
How many grams of KNO3 will dissolve in 100 g of hot water (100°C)?
June 3, 2009

math
camilla worked 71 hours in july how many minutes did camilla work in july
May 30, 2009

Pre Cal
Been trying to solve this equation and I keep getting 3...any advice would be appreciated log2 (x+5)=4+log2 (x-1)
May 3, 2009

Exponential Equations
HOw would you solve this equation 5^x+6=4 Correct me if I'm wrong so far.. x+6 ln5=4 Divide by x+6..which would be ln5=4/x+6...then what??
May 1, 2009

Algebra II
Find the accumulated value of an investment of $3000 at 9% compounded continuously for 3 years. Isn't the formula 3000e(0.09)x(3)??..which would be $2,201.81...but its wrong?!!..any suggestions would be greatly appreciated
April 27, 2009

adult education
The reason that individual states have specific licensing requirements for child care facilities is to? A.limit the total number of child care facilities. B.guarantee quailty child care. C.protect the health, safely, and welfare of children. D.encourage public school systems ...
April 22, 2009

history
Create a timeline for the years 1780 to 1850. On the timeline, address the changes in political parties, the significant events that marked the growth of democracy,
April 17, 2009

10th grade math
(4x^4-3x^3-x+3) + (2x^3 + 3x - 4)
April 7, 2009

Trig
A straight trail with a uniform inclination of 17deg leads from a lodge to an elevation of 900 feet to a mountain lake at a elevation of 5500 ft. what is the length of the trail? (im soo stuck on this problem)
March 28, 2009

8th grade MATH
I MEAN 180
March 25, 2009

8th grade MATH
HAS TO EQUAL TO 18 DEGREES..I REALLY NEED HELP!
March 25, 2009

8th grade MATH
IF M<4=3X-10....WHAT IS THE MEASURE OF <4
March 25, 2009

algebra1
ratios- which pairs could form a proportion? 1. 10/24, 7/18 2. 6/9,10/15, 3. 3/4, 18/24 also g/5 = 6/10 solve
March 12, 2009

trigonometry
Use fundamental Identities to find the exact value of the expression. Do not use a calculator. Sin² 65° + cos² 65°=??.. How would I attempt to solve this problem??
March 9, 2009

trigonometry
If sine of an angle is ¼ and cosine of an angle is 15/4.. find cosecant.
March 7, 2009

science
What are organisms that return nutrients to the food chain
February 22, 2009

social civics
During the early part of the 19th century how were trade unions viewed in the united states and england? the were considered to be?
February 21, 2009

math- need now
solve the equation by expressing each side as a power of the same base and then equating exponents 3125^x=1/square root 5
February 19, 2009

SS for 7th grade
What is to murder someone who is well-known or important?
February 2, 2009

social studies
i need to find out two strenghs and weakness of the continental army
January 22, 2009

Animals
How do gazelles sleep and when? And what do they do during the night?
January 21, 2009

6th grade math
5 hours
January 21, 2009

math
find y so that the distance between the points is 8: (0,0) (3,y)
January 13, 2009

math
find the intercepts: y=7x+5, y=(x+4)(x-5), y=xsquared+x-2, y=xcubed-16x
January 13, 2009

Math
p=1200
January 13, 2009

psychology
The question is asking what is unique about the ORIGIN of placenta, that to me points to C because that is the answer that relates to the origins of the placenta in development
January 7, 2009

chemistry
whats is produced Nickel + Copper(II) Chloride
December 22, 2008

Math
How do you solve multipling and divding numbers in scientific notation
December 18, 2008

Science
Suppose a large atom bonds with a small atom. Predict whether the properties of the new molecule will be the same as the large atom, the same as the small atom, or different from both atoms.
November 19, 2008

novel
After the death of Curly in The Call of the Wild, Buck concludes that no fair play exists in his world and that he will never go down in a fight. The theme illustrated here is apparently derived from London's interpretation of
November 18, 2008

French
Thank you so much! Entirely out of curiosity, how many languages do you speak?
November 3, 2008

English
Have a safe and happy Halloween :)
November 2, 2008

english 1
why does aunt alexander thank miss maudie with her eyes
October 30, 2008

Criminal Justice
This is the whole homework assignment. I am in the class that requires for the final. you really should do your own work instead of expecting others to do it for you!
October 25, 2008

freazer school
my mom give me 5 dollar . then i spent 2 dollar now how much i have?
October 18, 2008

American History
compare the colonial empires of spain,france and england in terms of their settlements, economic structure and political control.
October 11, 2008

6th grade com arts
HEAT ADVISORY
October 7, 2008

2nd grade
7+8=
October 6, 2008

11th grade physics
A tank of helium gas used to inflate toy balloons is at a pressure of 15.5 X 10^6 and a temperature of 293 K. The tank's volume is 0.020m^3. How large a balloon would it fill at 1.00 atmosphere and 323 K?
October 5, 2008

Math: 4th grade
thank you so much
October 2, 2008

Math: 4th grade
I have problems with expressions.. Susan had 24 stamps. She used some to mail letters.. What expression could I write for that? Also.. Nancy had 23 books. Her dad bought some books annd gave Nancy all but 3 of them.
October 2, 2008

Physical Chemistry1
One mole of an ideal monatomic gas at 300 K and 1 atm is compressed adiabatically by application of a constant external pressure of 25 atm until mechanical equiliibrium is achieved. Calculate the final temperature of the gas, as well as q, w, deltaU and deltaH for this process.
September 29, 2008

Physical Chemistry2
One mole of a van der Waals gas with a=15.0 l^2 atm mol^−2 and b=0.015 l mol^−1 is expanded reversibly and isothermally from 1 atm to 0.5 atm at a temperature of 300 K. Calculate w for this process, and compare it with that required to expand an ideal gas between ...
September 29, 2008

Physical Chemistry4
A 3 mg sample of an unknown ideal gas is subjected to an adiabatic and mechanically reversible expansion from an initial pressure of 2 atmospheres to a final pressure of 300 torr. Given that gamma for the gas is 1.532 and that the temperature drop achieved in the expansion is ...
September 29, 2008

Physical Chemistry3
The specific volume of water is given quite accurately by the empirical relation ln(v) = −6.7081 + 1.01257 ln(T) + 280.663/T Use this relation to derive an equation for the coefficient of thermal expansion and determine the temperature at which this quantity is ...
September 29, 2008

Physical Chemistry3
The specific volume of water is given quite accurately by the empirical relation ln(v) = −6.7081 + 1.01257 ln(T) + 280.663/T Use this relation to derive an equation for the coefficient of thermal expansion and determine the temperature at which this quantity is ...
September 29, 2008

Physical Chemistry
A 3 mg sample of an unknown ideal gas is subjected to an adiabatic and mechanically reversible expansion from an initial pressure of 2 atmospheres to a final pressure of 300 torr. Given that gamma for the gas is 1.532 and that the temperature drop achieved in the expansion is ...
September 29, 2008

math
You have been appointed by the new executive director to chair a committee of agency administrators charged with (1) conducting an inventory of the agency’s various services and activities, (2) recommending a program structure, and (3) recommending responsibility center ...
September 27, 2008

AP US History
Analyze the extent to which the American Revolution represented a radical alteration in American political ideas and institutions. Confine your answer to the period 1775 to 1800.
September 24, 2008

Finance/Investing
A comic book was purchased for 10 cents in 1948 and is now worth $55 today. What has been the average annual compound rate of return on this item? I tried to use the formula R=[(y/x)^(1/n)]-1 and I come up with a negative answer. Please help!
September 21, 2008

11th grade
where can i find a simple map of the original 13 colonies showing french and spanish territories
September 21, 2008

math
why is the mean of a set of data sometimes a number not included in the set of data
September 15, 2008

algebra 1
Cesar threw a 3 on the number cube and moved forward three spaces. He landed on a space that said:"Take a card." The card said:"Go back 5 spaces." Where is Cesar in relation to his starting position before he rolled the number cube?
September 12, 2008

algebra3
use a calculator to find the decimal form of the rational number. if it is a nonterminating decimal, write the repeating pattern.
August 11, 2008

computer
read page 511 of your understanding computers
July 27, 2008

Chemistry
Still lost. How do you convert mols NO to mols O2?
July 24, 2008

Chemistry
4 NH3 + 5 O2 --> 4 NO + 6 H2O. How many grams of O2 are required to product 90 g of NO? Please assist in solving.
July 24, 2008

Chemistry
I solved it now. Thanks
July 24, 2008

Chemistry
Magnesium nitride can be produced by passing nitrogen gas over magnesium metal. 3Mg+N2 --> Mg3N2 IF 28.8g of Mg are mixed with 21g of N2 and allowed to react, which is the limiting reagent?
July 24, 2008

history
which choice does NOT accuartely complete the sentence the judiciary act of 1789 A. appointed the first chief justice B. created federal circuit and federal districat courts C. helped federal laws remain "the supreme Law of the Land" D. provided for the number of ...
July 22, 2008

music
Is the sonata-allegro form still being used today?
July 5, 2008

English
This question is about the book "The Importance of Being Earnest". Gwendolen’s father, Lord Bracknell, never appears in the play, yet Lady Bracknell mentions him often. What picture of his life and marriage do we get from the things she and Gwendolen say about ...
June 7, 2008

chemistry
A solution of potassium chloride has a pH of 7.81.What is the [OH-] in mol/L ? Can you please show steps I would appreciate it very much. Thank you
May 25, 2008

finance
It’s been two months since you took a position as an assistant financial analyst at Caledonia Products. Although your boss has been pleased with your work, he is still a bit hesitant about unleashing you without supervision. Your next assignment involves both the ...
May 19, 2008

medical records
please check my answer thanks you very much A medical should be completed within how many days after a pt is discharged A 30 B 35 C 60 D 15 E none of the above I picked D
May 10, 2008

JCAHO
please check my answer According to JCAHO standards, the delinquency rate for incomplete medical records should be no greater than 20% I said True
May 10, 2008

english
what happens to the three men that Odysseus sends to scout out the land?
May 6, 2008

Math
Thanks
April 24, 2008

Math
At Kinko's, Sean made 56 copies costing $16. Color copies cost $0.75 each and black and white copies cost $0.10 each. How many copies of each did Sean make? Thanks!!
April 24, 2008

5TH GRADE MATH NEED HELP ASAP
can you help me with my math factoization
April 22, 2008

Algebra
divide: (39w+ 14 + 10w squared) / 72+ w =]
April 22, 2008

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