Saturday
August 30, 2014

Posts by sarah


Total # Posts: 3,839

health
if you were going to leave your home and your kids put you to aged care facility how would you feel and how would you think and what would you miss the most
March 18, 2012

childhood education
Which factors seem to be most important for development of make-believe play. A. children's readiness to engage in make- believe play and social experiences that promote it. B.opportunities for peer interaction in settings that inspire make-believe play.
March 15, 2012

child psychology
Piagets famous -----------problem demonstrates preoperational children's difficulity with---------- A. three mountains; dual representation B.three mountains;hierarchical classification. C. class inclusion; hierarchial classification
March 15, 2012

Math
How do you list 2/3,1/2,1/3,3/4,1/8 from least to greatest?
March 15, 2012

Chemistry
What is the electron configuration for the transition metal ion(s) in each of the following compounds? Na2[TaF7] Cant seem to figure this one out...
March 14, 2012

chemistry
What mass of sulfur msut be used to produce 17.1 L of gaseous sulfur dioxide at STP according to the following equation? S8 (s) + 8O2 (g) -> 8 SO2 (g) Answer in units of g
March 14, 2012

Pre Algebra
You deposit $3350 into a savings account that earns 5% interest compounded annually. Find the balance of the account after 2 years. Round your answer to the nearest cent
March 13, 2012

business
Assignment Choose a company that has experienced negative press recently about its financial dealings. Provide a financial summary of your selected company’s financial health, including a timeline of possible financial gains and losses. Define 2 financial concepts and how...
March 11, 2012

principles of business
The company I choose that has experienced negative press recently about its financial dealings; is Deutsche Bank A.G. home office is located in Germany; The Deutsche Bank opened its first branch in NY in 1979 and was the first German bank to list on the NYSE (in October 2001...
March 11, 2012

principles of business
Assignment Choose a company that has experienced negative press recently about its financial dealings. Provide a financial summary of your selected company’s financial health, including a timeline of possible financial gains and losses. Define 2 financial concepts and how...
March 11, 2012

Physics
a 60 gram tennis ball completed 5 revolutions in 1.68 seconds. given that the radius was 35 centimeters, what haning mass was used
March 10, 2012

AP Chem
An apparatus consists of a 4 L flask containing nitrogen gas at 32 C and 885 kPa, joined by a valve to a 8 L flask containing argon gas at 32 C and 47.5 kPa. The valve is opened and the gases mix. What is the partial pressure of nitrogen after mixing? Answer in units of kPa
March 10, 2012

AP chem
An apparatus consists of a 4 L flask containing nitrogen gas at 32C and 885 kPa, joined by a valve to a 8 L flask containing argon gas at 32 C and 47.5 kPa. The valve is opened and the gases mix. What is the partial pressure of nitrogen after mixing? Answer in units of kPa
March 9, 2012

chemistry
I got x=0.091766....now what do i do? I'm confused. Also can check if this is right for x?
March 9, 2012

chemistry
What answers did u get for PCl5 and PCl3...I want to verify them please.
March 9, 2012

chemistry
Phosphorus pentachloride decomposes according to the chemical equation PCl5(g) -----> PCl3 (g)+ Cl2(g) Kc= 1.80 at 250 degrees C A 0.463 mol sample of PCl5(g) is injected into an empty 4.80 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and ...
March 9, 2012

health
list 3 documents that protect the legal rights of individuals at health care
March 9, 2012

Chemistry
Thank you so much!
March 8, 2012

Chemistry
I know how to convert moles to mass, atoms, volume etc. and I can find the limiting reagent and the percentage yield of some basic problems.
March 8, 2012

Chemistry
When MoO3 and Zn are heated together they react 3Zn(s)+2MoO3(s) --> Mo2O3(s)+3ZnO(s) What mass of ZnO is formed when 20.0 grams of MoO3 is reacted with 10.0 grams of Zn?
March 8, 2012

math
Suppose that a<b are extended real numbers and that f is differentiable on (a,b). If f' is bound on (a,b) prove f is uniformly continuous.
March 8, 2012

Chemistry
Thank you!
March 8, 2012

Physics
thank you for your help! I really appreciate it.
March 8, 2012

Physics
i'm not sure how to begin the problem at all. Or else I would have shown some work. thanks though
March 8, 2012

Physics
In the figure, two balls are located in deep space. The black ball has mass 56kg and the red ball has mass 17kg. The distance between the two balls is r=24cm. (a) Find the magnitude of the acceleration of the red ball. m/s2 (b) If r is 5 times larger, with what factor will the...
March 8, 2012

Physics
You are in a space shuttle traveling in the circular orbit, which is 380 km above the Earth. Your friend is in another space shuttle traveling on the same circular orbit with you, but he is 20 km ahead of you. (a) How long will it take you to catch up with your friend if you ...
March 8, 2012

Physics
A box of mass 250 kg slides 4.6 m down an inclined plane of 31°. Jim pushes against the box to keep it from accelerating. The coefficient of kinetic friction between the box and the ramp is 0.41 (a) Calculate the magnitude of the force exerted by Jim. (b) Calculate the ...
March 8, 2012

Chemistry
Ammonium iodide dissociates reversibly to ammonia and hydrogen iodide. NH4I(s) <==> NH3(g) + HI(g) At 400°C, Kp = 0.215. Calculate the partial pressure of ammonia at equilibrium when a sufficient quantity of ammonium iodide is heated to 400°C. Please help! would ...
March 8, 2012

Physics
How far above the surface of Earth would you weigh 63.6 percent of your surface weight?
March 5, 2012

Physics
A bicyclist traveling at 7 m/s rides around an unbanked curve. The coefficient of friction between the tires and the road is 0.38. What is the radius of the shortest turn that the bicyclist can safely make?
March 5, 2012

physics
an experimental rocket plane lands on skids on a dry lake bed. it is traveling at 80.0 m/s when it touches down, how far does it slide before it comes to a stop? assume the coeffcient of kinetic friction between the skids and the lake is .600
March 5, 2012

algebra
8r+7r=75
March 5, 2012

Chemistry
Consider the following electron configuration. (σ3s)2 (σ3s*)2 (σ3p)2 (π3p)4 (π3p*)4 Select four species that, in theory, would have this electron configuration.
March 4, 2012

Anthropology
In dancing with skeletons, in mali, who is usually blamed if a child is born with something the matter with it?
March 1, 2012

physics
explain why a child on a swing comes to rest directly below the top of the swinng
February 29, 2012

English
misty could you walk ms millers dog on tuesday mom asked= Misty was asked to walk the dog by her mother on Tueday. OR Misty walked the dog on Tuesday because her mom asked her
February 29, 2012

Math 11 Surface area, Volume and Capacity
Im having difficulties with this one also...
February 28, 2012

Chemistry
These are what i used. 0.0375M sodium thiosulphate , 2.5% KI .47.2 ml copper sulphate solution. the average volume of Na2S2O3 is 19.25 cm, i have already calculated the number of moles of thiosulphate which is 7.218 * 10-4 moles of Na2S2O3 and also the number of moles of I2 ...
February 26, 2012

Chemistry
If very small concentrations of NaCl and AgNO3 are mixed, no precipitate forms. However, if large concentrations are mixed, a white precipitate forms. Can someone tell me a method for testing the hypothesis that "insoluble" salts would dissolve to some extent in ...
February 26, 2012

Chemistry
Balance the redox equation by oxidation number method: Cr2O7 2- + Br- + H+ = Cr 3+ + Br + H2O Please help!
February 24, 2012

US HIstory
In what ways was dulles's policy of brinkmanship different from truman's cold war policies? Thanks
February 24, 2012

physics
If the mass of an object was 0.500 kg and it started from rest, then the object's final velocity at the end of 0.86 seconds is ?
February 24, 2012

calculus
How many horizontal tangent lines exit to the curve f(x) = x^cos(x)?
February 23, 2012

calculus
You operate a bakery. You buy cakes from a supplier who charges you $5 per cake. Government regulations dictate that you can only charge a price between $10 and $20 per cake. Your research shows that if you were to charge $x per cake, you would sell 125 - x2 cakes per week. a...
February 23, 2012

calculus
Find an explicit expression for y' for the curve de fined by 3(x^2 + y^2)^2 = 100xy.
February 23, 2012

maths
(2x-3)^2
February 23, 2012

maths
multiply out (2x-3) squared eg small 2
February 23, 2012

writting a program
Speed of Sound. Sound travels through air as a result of collisions between the molecules in the air. The temperature of the air affects the speed of the molecules, which in turn affects the speed of sound. The velocity of sound in dry air can be approximated by the formula: &...
February 23, 2012

physics
Use the fact that a typical proton is spherical and has a diameter of 1x10^-13 cm and a mass of 1.67x10^-24 grams, compute density of a proton.
February 22, 2012

physics
Einstein saud that the amount of energy in matter is given by E=mC^2 where if m is in kilograms and c=3x10^8 which is the speed of light. The energy is E is given in Joules. Assuming that is takes an average of 1x10^11 Joules to heat your house during the year, calculate how ...
February 22, 2012

math
factorise 6m squared - 600
February 22, 2012

English
this is wht i have so far :( In the short story “The large Ant” by Howard Fast, Morgan kills an ant because his mind is set to act violently if he sees something unusual. It is human nature to be terrified and react without thinking about their action when something ...
February 21, 2012

English
I need a thesis statment for an esaay. I have read the short story "the large ant" but cant think of any thesis statment. Its about human nature and violance.
February 21, 2012

Calculus AB
I have to find the integral of (e^3lnx + e^3x)dx. Can someone help me?
February 21, 2012

Calculus AB
Oh geez two different answers.
February 21, 2012

Calculus AB
So then that could be moved around, and it would be (1-x)/(x-xy) ?
February 21, 2012

Calculus AB
I have to find y' if ln(xy) = x + y. Where do I start? I'm not sure what to do with that ln(xy)
February 21, 2012

CHEMISTRY
Find the amount of CuSO4.5H2O needed to prepare 500 mL of 0.25 M solution.
February 20, 2012

Art
I have been working on this. Here are my answers so far, can you please just double check them? 1. Alexander Calder invented this type of art. () fiber art (*) mobiles () stabiles () public art 2. Today, decisions in planning, selecting, and/or creating an artwork for public ...
February 20, 2012

Art
1. Alexander Calder invented this type of art. () fiber art () mobiles () stabiles () public art 2. Today, decisions in planning, selecting, and/or creating an artwork for public display are made in the following way. () They are the decision of the artist. () by collaboration...
February 20, 2012

chemistry
I got 28.26 for Mc....can someone confirm this answer and help me find the liters for the next part.
February 19, 2012

chemistry
In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 47.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse osmosis stops? Mc=? ...
February 19, 2012

Chemistry
I did what you said and didn't get the correct answer :(
February 18, 2012

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 10.7 g of biphenyl in 33.9 g of benzene?
February 18, 2012

statistics
64.8
February 18, 2012

Biology
Does the amplitude of QRS complex change with the pulse amplitudes? Why or why not? So I think that the amplitude of the QRS complex should cause the pulse amplitude to change, because the pulse pressure is determined by the force of contraction of the heart. Am i on the right...
February 17, 2012

health
what should be taken into consideration when cultural bias occurs in age care
February 16, 2012

NU
Determine the net force necessary to give an object with a mass of 3.4 kg an acceleration of 4.3 m/s2
February 16, 2012

math: elapsed time
find each elapsed time 1. 9:59P.M. TO 10:45 P.M.
February 15, 2012

math: elapsed time
find each elapsed time. 1. 9:P.M. TO 10:45 P.M.
February 15, 2012

physical science
A child pushes a book a distance of 17m. If 5J of work was done, how much force was used?
February 15, 2012

college physics
f=5000
February 14, 2012

CHEMISTRY
Write equations for the solution process when ech of the following is dissolved in water. Potassium phosphate glucose Calcium chloride 1-propanol Butanone Ammonium sulfite
February 14, 2012

CHEMISTRY
What will be the concentration if 52mL of a solution that is 12ppm in sodium chloride is diluted with enough water to make 97mL of solution?
February 14, 2012

math
what is equivalent fraction of 9/10 and 7/12
February 14, 2012

chemistry
I had the exact same question, but the when I tried the second equation, it was wrong.
February 13, 2012

chemistry
2.875 mol H2O = ___ g
February 13, 2012

Math
Nico is saving money for his college education. He invests some money at 5%, and $2300 less than that amount at 3%. The investments produced a total of $163 interest in one year. How much did he invest at each rate?
February 12, 2012

Chemistry
thanks for your suggestion. but maybe is it possible to use the titration method to determine whether or not the precipate would for form, for example, adding the large concentration of AgNO3 and NaCl which would cause the precipitate to form and then use those values obtained...
February 12, 2012

Chemistry
If very small concentrations of NaCl and AgNO3 are mixed, no precipitate forms. However, if large concentrations are mixed, a white precipitate forms. Can someone tell me a method for testing the hypothesis that "insoluble" salts would dissolve to some extent in ...
February 12, 2012

Algebra
the altitude of a triangle is 3m less than half its base. If the area of the triangle is 300 m^2 find the measure of the base.
February 11, 2012

chemistry
if 1.2x10^24 molecules of water freeze how much energy is released by the water according to the equation below? - H2O(l)-> H2O(s);ΔH=-6KJ
February 10, 2012

english
diagram follow sentence the children who are in the fifth row will have no homework tonight
February 9, 2012

Physics
A student argues that as a satellite orbits the earth in a circular path, it moves with a constant velocity and therefore has no acceleration. The professor claims that the student is wrong since the satellite must have a centripetal acceleration as it moves in its circular ...
February 8, 2012

physics
i want this too :(
February 6, 2012

intermediate algebra
$3,480 are 105% so you divide $3,480 by 105 and then multiply it by 100, because you want to know what amount it was before it was raised 5%
February 4, 2012

Physics
A cannon is fired from a cliff 190 m high downward at an angle of 21° with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
February 4, 2012

calculus
rotate about x=16
February 4, 2012

calculus
volume of the solid enclosed in y=square root of x y=0 and x=16
February 4, 2012

math
A 200-miles trip by an electric automobile must be completed in 4 hours. If it takes x number of hours to travel the first half of the distance, write an equation describing the average speed for the second half of the trip as a function of x for the 0<x<4.
February 3, 2012

math
0≥16 true or false
February 2, 2012

math,angles
thank you very much you are very help ful and so were these videos ...u guide me to where i need to be so i want to thank you ...not only for this but i am a straight A student with some guidence and its because of you so thank you :):)
February 1, 2012

math,angles
Could anyone help me with showing me how to bisect an angle
February 1, 2012

MATH
thats ok but thank you very much and once again sorry i was just a little uncomfortable sharing my name so thank you anyways ill have to ask my teachers assistance
February 1, 2012

Pre-Algebra with PIZZAZZ
It goes into negetives i think ...so 9 subtract 14 would be negetive five ...hope that helps.
February 1, 2012

Science
I do not need a link, just a straight up answer please. What are 3 saftey tips you can give me for 'Tornadoes'?
January 31, 2012

geometry/algebra
at 5pm a person 5 feet tall casts a 10 foot shadow. at the same time a flagpole casts a 40 foot shadow. what is the height of the flagpole?
January 31, 2012

English
I have to write a conversation between two characters from Groom Service by Michael Dorris(shot story)Is there is anyone who had read this story and wrote dialouge fot it? Please help :(
January 31, 2012

algebra
Find the equation using a slope-intercept form if possible.. x-intercept −1, y-intercept −2 I do not know how to start this.. HELP!
January 27, 2012

english
For English II I'm supposed to write a persuasive essay on a speech such as the "I Have A Dream Speech" or similar. I don't particularly care for King's speech. What are some other speeches I could use?
January 26, 2012

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