Thursday
September 18, 2014

Posts by sarah


Total # Posts: 3,877

Art History
How is "Liberty Leading the People" similar to "Coronation of Napoleon"? How do they differ?
November 12, 2011

health
Which of the following structures are tubes? A. Frontal, maxillary, sphenoidal, ethmoidal B. Eustachian, pharynx, bronchi C. Cilia, adenoids, mucous, epiglottis D. Apex, base, hilum
November 12, 2011

chemistry
Keq= (.200)(1.76 x 10^-5) / .150 work the math then with that answer, you do the Ph log and will get your answer
November 11, 2011

Organic Chemistry I LAB
why would 4-methyl-2-pentanone have a lower boiling point that 2-hexanone if they are isomers and their molecular weights are the same?
November 9, 2011

math
You buy a bottle of juice for $1.00. The juice costs .90 cents more than the empty bottle. How much does the empty bottle cost?? The answer is not 10 cents, or $1.00
November 8, 2011

chemistry
A reaction produced 55.7 mL of nitrogen gas, which was collected over water at 23oC. The measured barometric pressure was 742 torr. If the vapor pressure of water at 23oC is 21 torr, what was the mole fraction of N2 in the collected gas?
November 7, 2011

Chemistry
A sealed flask containing water and N2 gas in equilibrium is at a temperature of 25°C. If the concentration of N2 gas in the solution is 1.4 x 10-3 M, what is the partial pressure of N2 gas in the container? (kH for N2 gas in water is 6.1 x 10-4 M/atm at 25°C.)
November 7, 2011

chemistry
A 10.0 g cube of each of the following metals is heated to 100 °C and dropped (without loss of heat during transfer) into separate but identical beakers containing 100 mL of water at 25 °C. The temperature of the water in the beaker is measured at equilibrium. Which ...
November 7, 2011

Chemistry
Which one of the following liquids will have the highest freezing point? A. pure H2O B. aqueous glucose (0.050 m) C. aqueous CoI2 (0.030 m) D. aqueous FeCl3 (0.030 m) E. aqueous NaI (0.030 m) Could you please give a step by step process?
November 7, 2011

early childhood education
*CORRECTION* I meant A for #2! Striking a stationary ball, is a closed skill. sorry, dont know why I put c.
November 6, 2011

early childhood education
This is for #1: I had such a hard time with this ?. The answer is Spatial Awareness, Definition: "Generally speaking, spatial awareness is the recognition of the distance between objects. More specifically, though, the term "spatial awareness” refers to a person...
November 6, 2011

statistics
If the standard deviation for waiting times in a line is 5 minutes, the standard deviation for the averages of 30 randomly chosen waiting times is _____ minutes.
November 6, 2011

health
9. Human blood, which has a pH of approximately 7.4, is a/an _______ substance.
November 6, 2011

Statistics
Let's pretend the Work variable is normally distributed, with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 68 percent of students work between ______ and ______ hours per week. Select the TWO numbers ...
November 4, 2011

statistics
Let's pretend the Work variable is normally distributed, with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 50 percent of SOC 390 students work more than ____ hours per week
November 4, 2011

economic
pls show me the chart for production possibility curve
November 4, 2011

science
Ignore what I just said!! The answer just popped into my head after about half an hour of staring blankly at my book. (I'm assuming this is OU S105) I think what you have to do is find the point where the S wave and P wave are 5 mins apart (you should be able to measure ...
November 4, 2011

science
This answer isn't really helpful. Can somebody give a general explanation as to how you can work out the epicentral angle? I've got the same question and have been provided with a graph of p wave and s wave travel time. I'm assuming you find the place on the graph ...
November 4, 2011

physics
A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 56.0 m/s and returns the shot with the ball traveling horizontally at 44.0 m/s in the opposite direction. What is the impulse delivered to the ball by the racket?
November 3, 2011

English
HELP. How do would you annotate this? and answer the questions under the passage..??? But now, fearing death, all eyes fixed on Charybdis now Scylla snatched six men from our hollow ship, the toughest, strongest hands I had, and glancing backward over the decks, searching for ...
November 3, 2011

Physics
A baseball was hit at 45m/s at an angle of 45 degrees above the horizontal. How long did it remain in the air? How far did it travel horizontally?
November 2, 2011

physics
A forse of 75 N due north and 105 N due east is acting on a point. What is the magnitude and direction of the resultant force? What is the magnitde and direction of the equilibrant?
November 2, 2011

physics help
In this experiment you will be asked to plot a graph of mhg versus ac and fit your data to a straight line. What is the slope of the graph equal to in terms of the rotating mass MR? (Use any variable or symbol stated above as necessary.)
November 2, 2011

Physics Lab
(a) For the rotating mass in the lab setup by what ratio will the velocity change if the period is quadrupled? (b) For the rotating mass in the lab setup by what ratio will the velocity change if the period is decreased by a factor of four? (d) For the rotating mass in the lab...
November 2, 2011

Bepper
One end of a long 26 foot ladder is on the floor and the other end rests on a verical wall the bottom end of the ladder is pulled away from the wall qt a rate of 4 feet per second. how fast is the angle formed by the ladder and the floor changing when the ladder is 10 feet ...
November 1, 2011

statistics
The time necessary to assemble a discount store display is normally distributed with μ = 5 minutes and σ = 30 seconds. A large number of potential employees are timed assembling a practice display. How much time (in minutes) should the personnel manager allow the ...
November 1, 2011

Calculus - Math
Sorry in advance - it's a very wordy, multi part question. The parts with the ..........are the parts that require an answer. I have no idea where to begin or what to do to solve this. We will determine the volume obtained when revolving the solid bound by the curves y = x...
October 31, 2011

math analysis
A rectangle with its base on the x axis is to be inscribed under the positive portions of the graph of y=8-x^2 . Write an equation for the area of the rectangle which uses only the variable x.
October 31, 2011

geometry
ray xy bisects angle axb?
October 29, 2011

physics
a 2500kg truck applies a force of 4000 N to the road to accelerate forward. What is its rate of acceleration?...can someone please help? I got half way and then got really confused what do I do? Thanks
October 28, 2011

statistics
1. The on-campus housing costs for a semester at a state university are Normally distributed with a mean of $1553 and a standard deviation of $329. (a) What is the distribution of the mean on-campus housing cost for a semester at this university for a random sample of 50 ...
October 26, 2011

drama
The best in this kind are but shadows" is
October 25, 2011

statistics
In a clinic, 62% of patients are female. Fifteen patients are selected at random with replacement. What is the probability that at least 1 of the fifteen patients is male?
October 22, 2011

statistics
In a clinic, 62% of patients are female. Fifteen patients are selected at random with replacement. What is the probability that at least 1 of the fifteen patients is male?
October 22, 2011

Social Studies 9
* he DID mess with all the neighboring countries and murdered the Prussians
October 22, 2011

Social Studies 9
Thanks :) and i guess the charges might bring against him is that, he used roman laws, and was a tyrant leader ? :/ ima not very sure .
October 22, 2011

Social Studies 9
Yes, because with napoleon there was no liberty,equality and brotherhood. He made himself an emperor and made most of his brothers and sisters monarchs of various countries controlled by france . would this be right ?
October 22, 2011

Social Studies 9
Thanks for correcting me :P but is this answer right though ?. and i know i havent given my opinion yet. and how would i write one though :P ?
October 22, 2011

Social Studies 9
Do you think Napoleon brayed the french revolution when he became emperor. imagine that marat, roberspierre and danton bring napoleon to trail after his defeat at waterloo. make up a list of changes these leaders of the french revoulrion might bring against him. how might he ...
October 22, 2011

Social Studies 9
Im not really sure if i was suppose to read that . :p . i dont really. get whats it really asking...
October 22, 2011

Social Studies 9
Which aspects of Napoleons life does H.G wells emphasize. What does the infomation about napoleon and what does it tell you about H.G wells. is the information reliable or relevant in either case ? PLEASE NO GOOGLE SEARCHES . they dont work for me .
October 22, 2011

Maths
Thanks so much :)
October 22, 2011

Maths
if there is a cylindrical ride (radius r) and when it rotates the person feels pinned tot he wall and then the floor drops away. how would i start to find the equation of the angular speed needed to keep the person against the wall????
October 22, 2011

English
Absentmindedness is one word.
October 21, 2011

math
The horizontal range, R, in feet that a baseball travels is modeled by this equation. The initial velocity, v, is 90 feet a second. The ball is pitched at an angle of è degrees with the horizontal. At what angles will the ball travel 200 feet?
October 21, 2011

us history
Do you think that American foreign policy today should be guided by the principle of "speak softly and carry a big stick"? I don't really understand the quote or the question. Help?
October 21, 2011

Calculus AB
Give a formula for the extended function that is continuous at the indicated point. F(x)= (x-4)/((√x)-2) at x=4 I know the answer I just need to figure out how to work it out. The answer btw is y= (√x) + 2
October 20, 2011

math
what is 42-37 thanks.
October 20, 2011

Calculus
thanks!!
October 20, 2011

Calculus
Find a series ∑a_n for which ∑(a_n)^2 converges but ∑|a_n| diverges
October 20, 2011

US History
14. The main argument in support of the Bill of Rights was that A. they would help opponents of slavery gain the upper hand B.without them the US would be a republic government C.they would protect them the people from a tyrannical government D.without them the country would ...
October 19, 2011

pre calculus.
x is a first quadrant angle. In what quadrant(s) does the terminal side for 2x lie?
October 17, 2011

math equations
x=6
October 16, 2011

physics, HELP ASAP PLEASE!
a car starts and accelerates uniformly at a rate of 2.0 m / s ^ 2 in 6.0 s. Then, it maintains its constant speed for 30 seconds. Finally, the shrinkage slows down uniformly and stops to 5.0 s. find the total distance traveled by the car.
October 13, 2011

chemistry 12
If the pH of a solution is 3.5, what colour will be shown by each of the following indicators in the solution? a)Methyl Violet b) methyl red c) Methyl orange d) phenolphthalein My answers: a) Yellow to Blue b) Red to Yellow c) Red to Yellow d) close to a light pink almost ...
October 13, 2011

Physics
What is the impact speed when a car moving at 95km/h bumps into the rear of another car traveling in the same direction at 93km/h?
October 12, 2011

Physics
A dynamite blast at a quarry launches a rock straight upward, and 1.5 s later it is rising at a rate of 19 m/s. Assuming air resistance has no effect on the rock, calculate its speed (a) at launch and (b)4.6 s after launch.
October 12, 2011

chem 12
Calculate [H3O] an [OH] for a sodium hydroxide solution having a pH of 12.5. I know this is a strong base, and i got the pH 12.5. But i don't know how to go from there.
October 11, 2011

chem 12
Okay so i got Ka = (x)(x)/0.15 = 6.5x10^-5
October 11, 2011

chem 12
Where i go from there **
October 11, 2011

chem 12
a) Calculate [H3O^+] in a 0.15M solution of benzonic acid, HC7H5O2(aq) having K of 6.4x10^-5. b) Calculate the per cent ionization of the HC7H5O2. I got.. Kb = [HC7H5O3][OH]/HC7H5O2 6.3x10^-5 x Kb =1.0x10^-14 Kb = 1.0x10^-14/6.3x10^-4 = 1.5x10^-10 1.5x10^-10 = (x)(x)/0.15 i&#...
October 11, 2011

College Chem
Write a balanced equation for each reaction including the state symbols of all the reactants and products Co(NO3)2. 6H2O + Ni(NO3)2.6H2O
October 10, 2011

childcare
In what ways can a child care centre program provide quality care for the child caregivers.
October 10, 2011

MSU
aluminum sulfate and sodium phosphate Express your answer as chemical equation.
October 6, 2011

MATH
At McLeod University, thirty percent of the students are in Engineering. Forty percent of Engineering students study Probabilistic Systems, and sixty percent of the students studying Probabilistic Systems are in Engineering. What percentage of students at McLeod are either in ...
October 6, 2011

chemistry 12
Calculate [H3O] an [OH] for a sodium hydroxide solution having a pH of 12.5. I'm having a hard time with this i'm not sure how to start it. Please help me!
October 6, 2011

math
solve for x AB=24, MB=2x+4
October 5, 2011

physics
A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below. The tension in the wire is adjusted to have a magnitude of 21.12 N. Find the magnitude of the net force exerted by the wire on the crooked tooth.
October 5, 2011

Chemistry
a) Calculate [H3O^+] in a 0.15M solution of benzonic acid, HC7H5O2(aq) having K of 6.4x10^-5. b) Calculate the per cent ionization of the HC7H5O2. I got.. A) 0.16M but i did it again and got 7.2M so i'm very stuck as to the very different answers i got. B) 12.4% ionization.
October 4, 2011

finance
$0.45 for each company
September 30, 2011

math
It's differentiable for every point besides at it's 2 vertexes or where the function equals 0. In this case, it's not differentiable at x = -1 and x = 1.
September 29, 2011

CHEMISTRY
For A) I got the correct answer from my ICE table (2.44) For B) I got 0.006 moles of C6H5COOH initially and 0.0045 moles of KOH was added. The excess C6H5COOH is 0.006 - 0.0045 = 0.0015 moles. I then converted the 0.0015 moles to M (mol/L) by multiplying by 1000/30. This is ...
September 29, 2011

CHEMISTRY
Suppose that 30.0 mL of 0.20 M C6H5COO(aq) is titrated with 0.30 M KOH(aq). a) What is the initial pH of the 0.20 M C6H5COOH(aq)? b) What is the pH after the addition of 15.0 mL of 0.30 M KOH(aq)? c) What volume of 0.30 M KOH(aq) is required to reach halfway to the ...
September 29, 2011

Math
Yes, if the couples were not required to sit next to each other then the number of possibilities would be (8*7*6*5*4*3*2*1) = 40,320. I've taken Statistics at Georgia Tech and this was the fun part!!
September 29, 2011

Math
There are 384 possibilities.
September 29, 2011

Math
In the first seat: There are 8 possibilites for who sits there. In the second seat: There is only 1 possibility (the other member of the couple). In the third seat: There are 6 possibilites for who sits there. In the fourth seat: There is only 1 possibility (the other member ...
September 29, 2011

chemistry
A dilute aqueous solution of CaCl2 contains 0.159 grams of solute per liter of solution. It is fully dissociated. What is the osmotic pressure of the solution against a membrane at 20.0 °C?
September 29, 2011

chemistry
If 5 g of solid sodium hydroxide is dissolved in 100 mL of water, what is the molarity of the solution in moles of NaOH/L of solution (moles/L)?
September 29, 2011

Math
What do the fans sing at a university of California football games
September 27, 2011

Chemistry
If 1500. of hard water contains 0.019 and 0.0070 , how many moles of are needed to replace these ions? If the sodium is added to the water softener in the form of NaCl , how many grams of sodium chloride are needed?
September 27, 2011

Spanish-please check corrections
Please check if I composed and answered the quesions correctly. Someone told me corrections earlier and I did them-are they correct, now? Thank you 1.¿Te gusta vestirte en ropa casual o elegante? Me gusta vestir con ropa casual. 2.¿Prefieres levantarte temprano o...
September 21, 2011

Spanish-Please check
Did I write the questions correctly and did I answer these questions correctly? Thanks 1.¿Te gusta vestirte en ropa casual o elegante? Me gusta vestir con ropa casual. 2.¿Prefieres levantarte temprano o tarde? Prefiero levantarme temprano. 3.¿Dondé ...
September 21, 2011

chemistry
n = (pv)/ (RT) = (187.5 * 2.50) / (62.4 * 338) = 0.0222 mol H20 0.0222 mol H20 * 18.02g/mol = 0.4 g H20 vaporized
September 21, 2011

math
f(x)=8x-x2
September 20, 2011

Science
At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 10.4 m until, at t = 1.66 s, it is traveling east. The car does not alter its speed during the turn.
September 20, 2011

FRENCH
i tried but still found no answer
September 19, 2011

FRENCH
thats not an option on my sheet. greek is not an option?
September 19, 2011

FRENCH
which group of people first planted the grape vines: a) the romans b) the guals c) the french
September 19, 2011

FRENCH
k thanks :)
September 19, 2011

FRENCH
what about bc ms. sue?
September 19, 2011

FRENCH
2. the square kilometer area of british columbia is a)950,000 b) 820,000 c) 630,000
September 19, 2011

FRENCH
the square kilometer area of france is: a) 180,000 b)550,000 c)360,000
September 19, 2011

statistics
Suppose that is normally distributed with mean 90 and standard deviation 12. What value of does only the top 20% exceed?
September 19, 2011

science
A sample of metal has a mass of 94.5 grams and a volume of 7 civic centimeters. What is its density?
September 18, 2011

English/Lit
Thank you
September 18, 2011

English/Lit-recheck please
would it be diction?
September 18, 2011

English/Lit
I posted this earlier and someone suggested google-I did research various sites but I was wondering if anyone could perhaps check my answers and see if they would be a correct analysis-thank you I have two questions I'm working on for home work-could you check my answers ...
September 18, 2011

English-Please check my answers
I'd like some advice on my answers. I researched various sites, reread "Rape" but I still some help. Thank you
September 18, 2011

English
I have two questions I'm working on for home work-could you check my answers and advise me the direction I should go-if they're right or wrong??Thank you In the poem "Rape," Adrienne Rich uses the word "machine" instead "typewriter" ...
September 18, 2011

Physics
Suppose two thin flat plates measure 3.5m x 3.5m and are separated by 6.5mm. They are oppositely charged with +-20microCoulombs. Estimate the total force exerted by one plate on the other (ignore edge effects).
September 16, 2011

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