Questions Asked on
May 15, 2010

Chemistry
An airplane is pressurized to 650mm Hg, which is the atmospheric pressure at a ski resort at 13,000ft altitude. a. if air is 21% oxygen, what is the partial pressure of oxygen on the plane? b. If the partial pressure of oxygen drops below 100mm Hg,
asked by Helen 
maths
1. A cone justs fits inside a cylinder with volume 300cm^2. what is the volume of the cone?Give reasons for your answers.
asked by Ted 
French
is Monaco masculine or feminine? ie le Monaco or la Monaco
asked by S. 
chemistry
The particles of which sample of LiCl(s) have the same average kinetic energy as the particles in a 2.0 mole sample of NH3(g) at 25 degrees celcius? a) 1.0 mole @ 75 degrees celcius b) 12.0 mole @ 50 degrees celcius c) 3.0 mole @ 25 degrees celcius d) 4.0
asked by Anonymous 
chemistry
permanganate ion oxidizes hydrogen peroxide to oxygen gas and Mn2+ in acidic solution balance this equation: MnO4 + H2O2 yield Mn2+ + O2 this is what i got 16H+ + 2MnO4 + 5H2O2 yield 2Mn2+ + 8H2O + 5O2 + 10H+ all the atoms and charges are balanced but
asked by bme1(check my answer) 
Accounting
Case 1. Steve and Linda Hom live in Bartlesville, Oklahoma. Two years ago, they visited Thailand. Linda, a professional chef, was impressed with the cooking methods and the spices used in the Thai food. Bartlesville does not have a Thai restaurant, and the
asked by Monica 
physics
Hi! could anyone help me to solve this problem please. Three point charges are located at the corners of an equilateral triangle as in the figure below. Find the magnitude and direction of the net electric force on the 1.60 µC charge. (A = 1.60 µC, B =
asked by Chan 
science
what is the current prouce by a potential difference of 240 volts through a resistance of 0.2 ohms?
asked by Harry 
Chemistry
I have a test on monday and I NEED to ace it in order to raise my grade > . < ldsfkjaslkf right now, acids and bases are killing me can somebody help me with these problems? A buffer solution is prepared by mixing the weak base ammonia (Kb=1.77x10^5) with
asked by Kimberlee 
ECONOMICS
A firm uses a single plant with costs C= 160 +16Q +.1Q2 and faces the price equation P= 96 – .4Q. a) Find the firm’s profitmaximizing price and quantity. What is the profit? b) The firm’s production manager claims that the firm’s average cost of
asked by STARR 
Probability
Two dice are rolled. Find the odds that the score on the dice is either 7 or 12. A) 7 : 29 B) 1 : 5 C) 1 : 1 D) 19 : 17 I am so lost it isn't funny. I do not know how to figure this out.
asked by BWB 
science
what resistance would produce a current of 120 amps from a 6volt battery?
asked by Harry 
Chemistry
A sample of argon gas has a volume of 715 mL at a pressure of 1.34 atm and a temperature of 144 Celsius. What is the volume of the gas in milliliters when the pressure and temperature of the gas sample are changed to 622 mmHg and 321 K?
asked by Kelly 
Algebra
55. Find the range of y = 2x + 1. a. all real numbers b. all positive numbers Not sure.. 67. Name the Property: 2 + (10+1) = (2 + 10) + 1 a. Commutative Property of Multiplication b. Inverse property of addition c. Commutative Property of Addition d.
asked by mysterychicken 
algebra
length and width of a rectangle A=198 in width =x length =x+7
asked by Ben 
chemistry
Using data in table below and S °(C2H6(g))= 229.5 J·mol1·K1, calculate ÄfS° for C2H6(g) in J·mol1·K1. Compound S °, J·mol1·K1 Compound S °, J·mol1·K1 C(s) 5.69 H2(g) 130.6 I am sorry , last time i did not show my working. thanks for
asked by write2khin 
Chemistry
"An aqueous sodium borate solution is titrated to the second endpoint with 0.225 mol/l nitric acid in the presence of a suitable indicator. If an average of 12.6mL of titrant are required to reach the second endpoint for a 25.0 mL sample, what is the base
asked by Stuck 
English
Can you please proofread this for me.. I'm really bad with grammar. Something that I take a lot of pride in is my passion of giving back to the community. My senior year of high school I was in Leadership, and with the help of my council members we devoted
asked by Melonie 
chemistry
how many grams of oxygen is required to produce 2.0 kg of water??
asked by bob 
math
Let’s suppose you throw a ball straight up with an initial speed of 50 feet per second from a height of 6 feet. a.Find the parametric equations that describe the motion of the ball as a function of time. b.How long is the ball in the air? c.Determine
asked by Anonymous 
Chemistry
my ap chem teacher has been absent for the past two weeks and part of the notes her sub gave us to copy says that In the equation HC2H3O2 + H20 C2H3O2( charge) + H3O(+ charge) HC2H3O2 is an acid H2O is a base C2H3O2( charge) is the conjugate base and
asked by Mark 
MATHS
The shape, a cube and a square based pyramid. Both shapes have the same base and the same height. Which expression represents the total volume of this shape? justify your answer. Note:that the pyramid is on top of the cube joined together.
asked by Ted 
ethics
Write a 1,750 to 2,450word paper that formulates your personal code of ethics, using one of the major ethical frameworks as a guide. Include answers to the following questions: o In previous weeks, you examined the professional code of ethics for a field
asked by jessie 
Chemistry
The main component of nail polish remover is acetone, which has ∆Hvap= +31.3 kJ/mol. How many kJ of energy will be exchanged between your skina dn 48.9 mL of acetone which have been spilled on you? (density of acetone =0.79 g/cm^3)
asked by anonymous 
stats
A researcher conducts a t test for dependent means in which it is predicted that there will be a decrease in unemployment from before to after a particular jobskills training program. The cutoff "t" needed is 1.8333. The standard deviation of the
asked by Anonymous 
finance
One year ago, Auto Land issued 10year bonds at par. The bonds have a coupon rate of 6.5 percent and pay interest annually. Today, the market rate of interest on these bonds is 6.25 percent. How does today's price of this bond compare to the issue price
asked by Anonymous 
Managerial Economics
As vice president of sales for a rapidly growing company, you are grappling with the question of expanding the size of your direct sales force (from its current level of 60 national salespeople. You are considering hiring from 5 to 10 additional personnel
asked by Ariana 
chemistry
Which of the following when added to water will cause a significant change in the pH of the solution? 1 NH4HSO4 2 (NH4)2SO4 3 Na2SO4 I believe the answer is 1 & 2. is that right.
asked by George2 
economics
How goverment intervention can could improve societys welfare by changing peopple's incentives. What way is the market going wrong? Pollution from auto emissions has reached unhealthy levels
asked by Nicole Bellino 
chemistry
A 0.26 M solution of a diprotic acid, itaconic acid, has an [H+] of 6.0 103 M. What is the value of K1? I got answer like 2.6 101 ,I am not realy sure if u help me C5H6O4> C5H5O4 + H+ K1 is constant
asked by kelly 
Classroom Rubric
How many criteria should be included in an classroom rubric? Why?
asked by Marcia 
stats:find the mean
please help! i know exactly how to find the mean but i am having a problem finding the midpoints. couldn't get them right :( salary employees 5,001 10,000 == 16 10,00115,000 == 15 1500120,000 == 11 20,00125,000 == 15 25,00130,000 == 23
asked by sha 
Derivative
What is the derivative of this y= 1/sin^2x  2/sinx
asked by Ken 
Math
Assume that the weight loss for the first two months of a diet program has a uniform distrbiution over the interval 6 to 12 pounds. Find the probability that a person on this diet loses less than 10 pounds in the first two months. Not sure what to do. A)
asked by bart 
Finance
Veggie Burgers, Inc., would like to maintain its cash account at a minimum level of $246,400; but expect the standard deviation in net daily cash flows to be $13,600; the effective annual rate on marketable securities to be 4.8 percent per year; and the
asked by Hans 
the power of art
If Gianiorenzo Bernini's Apollo and Daphne were to be moved from the Galleria Borghese in Rome where it now stands into the Ufizzi Gallery, the most ideal place to install it would be A anywhere in a gallery, provided it was with other 16th century marble
asked by karen 
Chemistry
A container is filled with 8.0×10^21 O2 molecules at 9 Celsius and 815 mm Hg. What is the volume in mL of the container?
asked by Sam 
statistics
Ok, so I'm trying to do this for my exam review. I get some of it, but not all: An electric utility is examining the relationship between temperature and electricity use in its service region on warm days. The utility has bivariate data detailing the
asked by peter 
Chemistry
Two of the questions my teacher put on the review sheet for our Acid/Base test are 1) what is the characteristic property of a buffer solution? and 2) what does a buffer solution contain? i think a buffer solution contains a weak acid and its conjugate
asked by Alison 
Rephrasing a sentence
How can I rephrase the following question: How do you measure students’ progress?
asked by Marcia 
Chemistry
A solution of acetic acid having a concentration of about 0.2M is to be titrated using 0.200M NaOH. Select an indicator for the titration. what salt will the solution contain at the equivalence point? what is the approximate concentration of this salt at
asked by Alison 
Math
I am looking for a website or two so that I can help my daughter with her accounting homework. Usually my husband helps her, but he was just deployed to Iraq a few days ago. Can you help me locate some websites? I found a few, but I am not willing to pay
asked by Mrs. Winters 
algebra
4x^35x^210x3 divided by 4x+3
asked by Matt 
Philosophy/Social Ethics
Any guidance as to where find answers to the following questions or any related ones would be super. Would a market for procuring organs lead to commodification of the human body? What do we do when there are not enough organs to meet demand? Do people who
asked by Herb 
Geometry
Lines l and m have an intersection at point O and any reflection in l followed by a reflection in m results in a rotation about point O of 136 degrees. What is the acute angle between l and m? Thank you!!
asked by DJ 
Grammar and Composition
CAN SOMEONE PLEASE TAKE SOME TIME OUT TO DO THIS, IT'S REALLY IMPORTANT TO ME, PLEEASE! I'VE POSTED IT SO MANY TIMES. THANKS TO ANYONE WHO DOES IT! Desert Island Essay Prewriting Sheet: Step 1: Choosing a Topic Bahamas Caribbean Islands Adriatic
asked by y912f 
intermidate alegebra
I need help with two problem please. 4m^+20m+25= over the m is 2. w3+5w^w=5 Please help me. over the w is three and 5w is 2. so could please help me this had to be done tonight.
asked by Ashley 
relgious education
For my RE homework I need to write an essay about the differences, similarities between Christianity and Judaism. the teaching and beliefs of the two religions. anyone know of any sites which explain it simply. thanks any help would be great :)
asked by lou 
history
Hitler's attacks on Austria and ______ tarted world war 2.
asked by Bella 
maths
can any one tell me wat are the topics for class 10th maths project for the year 20102011.
asked by prateek nayak 
Algebra 2/trig
How would I calculate the following function value? tan = 29degrees 36feet
asked by Brenna 
social studies
Find me a site for this sentence: a project in which canadians are providing aid in the area of health care or education. I can't seem to find one
asked by Mukti 
Chemistry
What catalysts are used to manufacture sulfuric acid and nitric acid?
asked by Joe 
Web Design
Please advise: While changes in code would be a good reason for a redesign of one's web page, I am stuck on equally important reasons for a redesign.
asked by Jim 
Business
I need to find the ROI and NPV of a $35,000 software installation, which will reduce staff of one at $10 per hour +18% benefits. Money cost are 7% and the system will become obsolete in three years. I have figured the ROI, but am not sure about the 7%
asked by Cher 
Social Studies
What are the two strongest and more advanced cultures in Asia?
asked by Liliana 
Com 150
How does the writing process you read about in this class differ from the process you have used in the past?
asked by jessica 
algebra
x^2x35 x(2x35) x(x35) check this for me thank for your help.
asked by Ashley 
social
what is the physical environment at kajuraho at present?
asked by vineeth 
Chemistry
Could you please explain what makes carbon so special and how its different formations affects its properties. I know its versatile but I don't get the rest. Thank you
asked by Shelley 
Ms Suere
just to say a BIG thankyou to you i was abit confused but what you found was a huge help and helped to clear it up.you are a star! thanks again
asked by Star 
Grade 8 Geometry
to calculate volume you use the formula V= area of b.s.(base area) x h(height)  How can I tell what face is the "base shape", especially with a triangular prism?
asked by Selena 
Chem
For a titration to be effective, what must be the relationship between the equivalence point and the endpoint?
asked by Harry 
Geography
can you help me with my 3D Top map construction Project of a pear island
asked by Ted 
5th grade
what does it means when they ask you give me a answear in units of multiplication and divisions word problems
asked by aliha 
CHEMISTRY PLEASE HELP!!!
Hello, I am wondering what exactly characterizes a polar molecule. Are all polar molecules charged? How do you tell if an uncharged molecule is polar? Thank you so much!
asked by Bobbi 
English Gr.11
If you have read the Handmaid's Tale by Margaret Atwood then in your opinion who do you think has a better life, the handmaid's or the jezebels? Explain why.
asked by nono 
social studies
what 2 counties where influiential politicals have lived or currently living in florida,United states of america, north america? i am thinking madison and orange counties
asked by chidora 
algebra
(3x+4)+(x tothe 2nd power +x5)
asked by rory 
social studies
I need to research on this sentence: Canadians are providing aid in the area of education. But I can't find a good website for this sentence. I've also tried typing this sentence on google but it's not giving me a good site. Please help me find a good site
asked by Mukti 
Algebra
5x/x^28x+15. can you show steps on how to solve this? thank you.
asked by Aasthaaaaa 
Math
how to find the formula for internet users per subscriber (average) if the internet subscribers (1000s) and internet users (1000s) are 11401 and 67510 respectively.
asked by JAndu Andu 
MATH
CAN SOMEONE HELP WITH THE ONE MILLION DOLLAR PROJECT
asked by CINDY B 
algebra
The projected number of men and women enrolled in US colleges, in millions, is modeled in the following formulas: Women: N=0.007x+4.1 Men: N=0.01x +3.9 N represents enrollment, in millions, x years after 1984 (I left this part out last posting). What is
asked by Rick 
psychology
• Write a 700 to 1050word paper in APA format describing the five major structures of the brain and each structure’s function(s) in the human body. Be sure to include the following brain structures: o Myelencephalon o Metencephalon o Mesencephalon o
asked by zdenka 
geology
How do fosils help in determining the relative age of strata? Are the three different localities around the same relative age?
asked by Deborah 
relgious education
do muslims get baptised/christened. ive looked on some websites on one it says they do and on another it says they donot believe in it. im a bit confused. thanks
asked by Star 
algebra
I am having a lot of difficulty trying to figure out how to put two math (word problems) questions into an expression. Can someone help me, I can do the rest from there. An explanation on the math formula would be great too. here's the two questions. 1.
asked by Rick 
algebra2
I am taking an online class, and cant understand why when I calculate ona ti84 plus an answer I get decimal answer and my teachers answer is sq root, is there something I am not doing on my calculator? How do I convert.
asked by jeff 
college
performance appriasal
asked by Barbara 
english
what are the books we have to read for our holiday homework :class10th year 20102011
asked by prateek nayak