Tuesday
September 16, 2014

Posts by Angel


Total # Posts: 861

college
Old Hickory rolled into Washington with such force that an era is named after him. Ending years of what he (and many Americans) considered to be elitist government, Jackson threw open the doors of power to the people, and remade the executive branch in the process. Previous to...
December 4, 2010

statistics
A large number of samples of size ‘n’ are selected from a population and the mean of each sample is determined. What can be said about the mean of the sample means
December 4, 2010

music
my school subject is music
December 4, 2010

math
multply to find an equivalent fraction 3/4
December 3, 2010

Physics
A cooling fan is turned off when it is running at 920 rev/min. It turns 1100 revolutions before it comes to a stop. What was the fan's angular acceleration? How long did it take the fan to come to a complete stop?
November 29, 2010

Math
Please help! x-2y+z=7 2x+y-z=0 3x+2y-2z=-2 a. Solve the above system of equations using Gaussian Elimination or Gauss-Jordan Elimination. You must show row operations. b. Solve the above system of equations using Cramer's Rule.
November 17, 2010

Qestion bout WH
how can i get a better gradfe wen i cant remember all the stuff only bits and pieces
November 16, 2010

Math
4/5+8/15=
November 12, 2010

Math
7+(v+w)
November 12, 2010

Math
12;8t=96
November 12, 2010

9th grade
How long was Romeo and Juliet married before the prince exiled Romeo?
November 11, 2010

Romeo and Juliet
How long was Romeo and Juliet married be4 the prince exiled Romeo?
November 11, 2010

9th grade Social Studies
i also have problems studying and understanding social studies. i don't know what to do my grades are way low. can you please give me some tips and ideas on how i can work on it?
November 10, 2010

A thanks to Writeacher
k i will
November 10, 2010

A thanks to Writeacher
THANK YOU lol thank you very much i now understand wat shes sayin myteacher dont really get it either lol wen i asked him in class so thank you very very much
November 10, 2010

English (Romeo and Juliet)
thx ms sue
November 10, 2010

English (Romeo and Juliet)
Where juliet says: "O romeo, romeo!Wherefore art thou Romeo? Deny thy father and refuse thy name; Or if thou wilt not,be sworn my love, And ill no longer be a Capulet" i dont understand what she is sayin and i dont understand what she means
November 10, 2010

math
you can put the matrices into your calculator, if a calculator isnt available you can easily do them out by hand
November 7, 2010

5th gr ade social studies
what is the fact of Each European gropup that set up colonies settled in a specific part of the Americas.
November 7, 2010

physics
F2 is straight up at a 90 degree angle to the x axis, and F1 and F2 form an 120 degree angle
November 7, 2010

physics
The two forces F1 and F2 act on a 27-kg object on a frictionless tabletop. If F1 = 7.1 N and F2 = 33 N, find the net force on the object and its acceleration. WHAT IN the world...how do i figure this out!
November 7, 2010

5th grade social studies
describe the geographical features of your community or region. How might they have influenced people to settle there?
November 7, 2010

Physics
How do you calculate the energy needed to heat 4 kg of water from 25oC to 45oC?
November 5, 2010

Chem
That was all the question gave me I can not figure out how to get the correct answer.
November 4, 2010

Chem
or is 44kJ correct?
November 4, 2010

Chem
What is the enthalpy for the following reaction? overall: C2H4+H2O--->C2H5OH is -1411kJ correct??
November 4, 2010

Chemistry
A 455-g chunk of iron is removed from an oven and plunged into 385g water in an insulated container. The temperature of the water increases from 27 degrees celsius to 89 degrees celsius. If the specific heat of iron is 0.449 J g^-1 degrees Celsius^-1, what must have been the ...
November 4, 2010

algebra 2
Factor: 27X^2-90X+27
November 2, 2010

Algebra
I'm soo confused on how to solve this prboblem. x+5/8x-3 = 11/2
October 24, 2010

english
Can someone please show me an example of alliteration and small definition?
October 24, 2010

Algebra
(x-6)^2=1? Give exact and approximate solutions to three decimal places
October 22, 2010

CALC
why is the surface area of a cube not the derivative of a volume?
October 7, 2010

Physics
Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was &#...
October 7, 2010

Physics
One gram of water is placed in a cylinder and the pressure is maintained at 2.0 x 105 Pa. The temperature of the water is raised by 31oC. Determine the change in internal energy when, a) the water is in its liquid phase and causes an expansion of 1.0 x 10-8 m3. b) Water is in ...
October 7, 2010

Physics
Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was &#...
October 7, 2010

Physics
Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was &#...
October 7, 2010

Physics
One gram of water is placed in a cylinder and the pressure is maintained at 2.0 x 105 Pa. The temperature of the water is raised by 31oC. Determine the change in internal energy when, a) the water is in its liquid phase and causes an expansion of 1.0 x 10-8 m3. b) Water is in ...
October 7, 2010

Physics
One gram of water is placed in a cylinder and the pressure is maintained at 2.0 x 105 Pa. The temperature of the water is raised by 31oC. Determine the change in internal energy when, a) the water is in its liquid phase and causes an expansion of 1.0 x 10-8 m3. b) Water is in ...
October 7, 2010

Physics
Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was &#...
October 7, 2010

Chem
NO3 is always soluble though. It doesn't mix with Na (which is also always soluble).
October 6, 2010

social studies
vocabulary an area that has one or more features in common.
September 29, 2010

math
i need the magic square from the follow numbers 3,4,5,6,7,8,9,10,11
September 15, 2010

math
what are2 ways to write 67,000 in word form
September 15, 2010

Biochemistry
Sorry! HEPES, is a commonly used component of physiological buffers. The PKa of the protonated amino group of HEPES is 7.55 at 25C. Describe the preparation of 1.00L of 0.100M HEPES buffer, pH 8.00, from the sodium salt of the basic form of HEPES (MW 260.3), 6.0M HCl and ...
September 14, 2010

Biochem
HEPES, is a commonly used component of physiological buffers. The PKa of the protonated amino group of HEPES is 7.55 at 25C. Describe the preparation of 1.00L of 0.100M HEPES buffer, pH 8.00, from the sodium salt of the basic form of HEPES (MW 260.3), .0M HCL and deionized water
September 13, 2010

Chemistry
I'm completely confused on how to solve this problem. Convert 125 hp-hr/long ton to kW-s/kg.
September 12, 2010

Chemistry
I'm completely confused on how to solve this problem. Convert 125 hp-hr/long ton to kW-s/kg.
September 12, 2010

Algebra
Thank You
September 11, 2010

Algebra
Write the equation of the function that has a graph the shape of y=/x/ ,reflected about the x-axis and shifted down 1 unit.
September 11, 2010

geometry
If EF = 2x – 12, FG = 3x – 15, and EG = 23, find the values of x, EF, and FG. The drawing is not to scale.
September 8, 2010

english
Can you hlp me with my figative lang. and it has to be about me
September 7, 2010

geometry
measure of angle RST=5(x+1)-3
September 6, 2010

Intermediate Algebra
I'm even more confused then before.
September 1, 2010

Intermediate Algebra
Factor: 9x^2 - 42x + 49 So far I have 3(3x^2 - 14x + ) I have no idea if this is right or if this equation is prime. Or if I'm solving it correctly.
September 1, 2010

algebra
For which value of x is the inequality 2x > 6 true? Is it: 0, 1, 2, 3 or 4
August 31, 2010

science true or false
false
August 29, 2010

biochemistry
The R-group of histidine is a weak base with a pKb of 6.0. Calculate the percent ionization at pH 7.4. What is the net charge of the following amino acids (single letter codes used) at pH7.4? Glycine Serine Glutamic Acid Lysine Please help. I'm not sure how I'm ...
August 28, 2010

math
which of the following expressions shows the equation to use in the finding the dimensions of a cube N by N by N with a volume 125 1) n3=125 2) n2=125 3) 3n=125 4) n=125/3 5) not enought info given need help with this problem!!
August 24, 2010

us government cp
what are the qualificalions to be a cadidate for governor?
August 1, 2010

Developmental Psychology
There are a number of ways that emotional or psychological problems can develop in children. Problems can result from anything that disrupts a child's sense of safety and security. This could include things such as an unstable or unsafe environment, separation from a ...
July 26, 2010

math
At a carnival, there is a game where you throw a coin on a colored square. You are given 3 coins and can land on any square more than once. What is the probability of landing on a red square on your first toss, a red square on your second toss, and a white square on your third...
July 23, 2010

Health
During an emergency room examination for an injured arm, the physician palpates teh arm's entire lengh, starting at the shoulder and ending at the fingers of the hand. THis process takes him from a/an------ position.
June 28, 2010

Business
How has the control mechanisms impacted the four functions of management in the Coca Cola Corporation?
June 24, 2010

Chemistry
Solubility of a solute X is 20 g / 100 g of water at 450C and 10 g / 100 g of water at 250C. What happens when a solution of 15 g of X in 100 g of water at 450C is cooled to 250C.
June 24, 2010

Chemistry
Why is ∆H hydration a negative quantity for ionic compounds?
June 20, 2010

chemistry
Consider two beakers, one with water and other one with sodium chloride solution. Which of these will have higher vapor pressure
June 20, 2010

math
in each game there are 12 red checkers and 12 black checkers.If tom put all the checkers in the bag and randomly picked 2,what is the probability that both will be black?
June 7, 2010

business
Tomlinson, in Cultural Imperialism: a Critical Introduction, London: Pinter Publishers, 1991, suggests that certain dominant cultures threaten to overwhelm other more vulnerable ones. He argues that cultural imperialism gathers in a number of fairly discrete discourses of ...
June 6, 2010

business
What is the relationship between ethics and the law? Can an action be unethical but not illegal? If so, explain how and give an example
June 6, 2010

Colleges
can someone give me a list of 4 year colleges that teach criminology or criminal justice
May 19, 2010

Math/ Probability
6!
May 19, 2010

Drug Abuse
My 8th grader is doing some research for a 4-H project and needs to know how drugs affect the family and friends of a drug addict?
May 16, 2010

Lifeskills
Need help people making a resume for hw assignment!!? okay so I'm in 9th grade and have life skills .we have to make our own resume on the job we want. i want to study criminology and become a detective so i have to write stuff sorta pertaining to it. like in my summary i ...
May 8, 2010

language arts
chomsky theorized that language is
May 8, 2010

Biology
what is an example of gross primary productivity of community
May 8, 2010

Biology
what is an example of biodiversity
May 8, 2010

Social Studies
I am doing an ABC book to for Florida and i need a word for the letter X to. IT is due MAY 26 , 2010!!!!!!!!!!!!!!!! I need HELP PLZ PLZ PLZ PLZ PLZ THANKS :)
May 7, 2010

Chemistry
How many moles of electrons are required to produce 23.8 g Cu from a CuSO4 solution?
May 2, 2010

Lifeskills
Thanks sooo much.. this helped a lot
April 29, 2010

Lifeskills
Yeah i have to interview them for a class
April 29, 2010

Lifeskills
What are good forensic questions i can ask a detective? name a couple please :)
April 29, 2010

math
..... Amy finished 6/12 of the problems on her timed test. Jackson finished 4/6 ... the timed test. Did they finish the same fraction of the problems? Explain. ...
April 29, 2010

English
What is meant by defy convention? The two definitions do not make any sense together.
April 22, 2010

Math
HEALWAYSWANTEDABIGMACK
April 20, 2010

japan
yes
April 16, 2010

Chemistry
The molarity of Sr2+ in a saturated solution of SrSO4 was determined to be 0.000500 M. Calculate the solubility product constant (Ksp) for SrSO4. SrSO4(s) = Sr^2+(aq) + SO4^2- (aq) Molar Mass (g/mol) SrSO4 183.68 This is what I know: Ksp = [Sr][SO4]
March 31, 2010

4th grade
what is 96/4
March 25, 2010

Math
How do you do this problem because i feel like i did it wrong (3ã2 + 4)^2 (3ã2 + 4)(3ã2 + 4) 9ã4 + 12ã2 + 12ã2 + 16 9*2ã2 + 12ã2 + 12ã2 + 16 18ã2...
March 24, 2010

statistics
A data set consists of a set of numerical values. Which, if any, of the following statements could be correct? There is no mode. There are two modes. There are three modes.
March 13, 2010

English
For number 2, why don't you just say that a simile is a figure of speech that draws a comparison between two different things, using like or as.
March 10, 2010

english
Well, criticism can make me weak at times; but I don't lose my courage. I gather enough courage to defend myself, and I have made criticism my strength today. I hate it how people bad talk about me, but then again, hearing those comments I make myself stronger, and ...
March 10, 2010

english
Has any one of you ever been criticized at a point in your life? If you have then how has it felt? Do you take criticism to be your weakness or strength.
March 10, 2010

Maths
if q>0, how can u use the graph of y =sin theta to draw the graph of y =sin theta +q?
March 10, 2010

Ancient China
what tool did they use?
March 6, 2010

Ancient China
What tool did the ancient China people use to try to communicate with the dead?
March 6, 2010

Chemistry
The value of the equilibrium constant, Kc, at a certain temperature is 4.20 x 10-2. Would the reaction as represented by the chemical equation favor reactants or products? Enter Product or Reactant. PCl5(g) = PCl3(g)+Cl2(g)
February 27, 2010

Chemistry
Calculate the value of the equilibrium constant (Kc) for the reaction displayed if the following equilibrium concentration data were measured at 1200 K: [Br2(g)] = 0.0001151 mol/L, [Br(g)] = 0.00004423 mol/L. Br2(g) = 2Br(g)
February 27, 2010

calculus
i got it nvm
February 25, 2010

calculus
A plane flying with a constant speed of 23 km/min passes over a ground radar station at an altitude of 5 km and climbs at an angle of 35 degrees. At what rate, in km/min is the distance from the plane to the radar station increasing 7 minutes later?
February 25, 2010

chemistry
what type of reaction is Al+S8=Al2S3
February 23, 2010

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