Questions Asked on
May 4, 2008

Any chemistry lovers?
A voltaic cell consists of Mn/Mn2+ and Cd/Cd2+ halfcells with the following initial concentrations: [Mn2+] = 0.090 M; [Cd2+] = 0.060 M. A)What is the intital Ecell? B)What is Ecell when [Cd2+} reaches .050M. C) What is [Mn2+] when Ecell reaches 0.055V? D)
asked by stumped 
science
four flasks each contain 100 milliliters of aqueous solutions equal concentrations at 25 degress C and 1 atm. the four flasks are KCL,CH3OH, Ba(OH)2, and CH3COOH. the question is Which solution had the lowest freezing point and explain answer
asked by lisa 
History
1)Why might the US have been concerned early in the war about China's attitude toward US involvenemt on the south side of vietnam? 2) What might have been the effect on the vietnam war if the border of Laos had been closed and N. Vietnam had not been able
asked by MW 
chem
determine the solubility of each of the following grams of solute per 100. g H2O a) NaNO3 at 10°C b) KNO3 at 60°C c) NaCL at 50°C
asked by jerson 
math
How many distinguishable permutations of letters are possible in the word? BASEBALL a. 20,160 b. 10,080 c. 5040 d. 40,320
asked by Dana 
physics
If you drop a stone into a well that is d = 128.0 m deep, how soon after you drop the stone will you hear it hit the bottom of the well?
asked by tommy 
Chemistry again
Two voltaic cells are to be joined so that one will run the other as an electrolytic cell. In the first cell, one halfcell has Au foil in 1.00M Au(NO3)3, and the other halfcell has a Cr bar in 1.00M Cr(NO3)3. In the second cell, one halfcell has a Co
asked by stumped 
world history
At the Yalta Conference, what was the promise that Stalin had made at the conference that he quickly broke once the war ended?
asked by Sue 
Biology
What conditions must be kept constant for a fair test for the amount of carbon dioxide against the rate of photosynthesis of pondweed
asked by Zahra 
math
Four accounting majors, two economics majors, and three marketing majors have interviewed for five different positions with a large company. Find the number of different ways that five of these could be hired. One accounting major, one economics major, and
asked by Dana 
physics
How many kWh of energy would be needed for brushing your teeth with an electric toothbrush daiy for the month of May? How much would it cost at $0.09 per kWh?
asked by chantel 
Chemistry!!
how would i do this problem?? Given this equation: 2SO2(g) + O2(g) > 2SO3(g) If 50.0 grams of S02 react, what is delta H for the reaction?? how would i do that??
asked by Miley 
math
Solve the problem. A shirt company has 4 designs that can be made with short or long sleeves. There are 5 color patterns available. How many different types of shirts are available from this company? a. 9 types b. 40 types c. 11 types d. 20 types
asked by Dana 
physics
a tuning fork produces a sound wave with a wavelength of 0.20 m and a velocity of 25.6 m/s. what is the frequency of the tuning fork?
asked by chantel 
art history
without useing a museum art become a investigative journalist using the internet find works of art that is not conventionally considered to be art.Art that will make for captivating news articles
asked by Sherita 
chemistry
1 what's the Tyndall Effect and whats one example of this effect? 2) Given an unknown mixture consisting of two or more substances, how could we determine whether that mixture is a true solution, a colloid, or a suspension? 3) why is a suspension
asked by jerson 
Physics
Original Question: Neutral metal sphere A, of mass 0.10kg, hangs from an insulating wire 2.0m long. An identical metal sphere B, with charge q is brought into contact with sphere A. Sphere A goes 12 degrees away from Sphere B. Calculate the initial charge
asked by Alex 
Geometry
Within an orthonormal system consider points A(1,4) B(5,1) C(4,8) (a)Calculate the angle ABC (b)Show that 3x+4y19=0 is an equation for line L which passes through A and B (c)Find a vector equation for line L (d)(i)give an equation for the circle with the
asked by Anonymous 
math/algebra
what is the fibonacci sequence???
asked by Miley 
biology
why do plants of arid environments have fewer smaller vessels than plants of moist environments?
asked by natash 
math
the length of a playground id 6 meters less than 3 times its width. If the perimeter of the playground is 100 meters what is the lenght and width of the area to the nearest hundredth meter?
asked by Angie 
Probability
1.John puts the letters of the word FOOTFEST in 8 different envelopes. Paul chooses an envelope at random. (a)(i)Calculate the probability that Paul chooses an envelope containg letter O (1/8 ?) (ii)Calculate the probability tthat Paul doesn't chooses an
asked by Anonymous 
homework
i have to make a small invention
asked by Anonymous 
math
what might you have if you don't feel well
asked by Ashley 
Epidemiology
Can some one please check this for me. I am not sure if I am on the right track. Complete the problem below. Disease X is one that often results in severe illness, but never is fatal. On March 21, 1990, 30 students developed disease X among all students in
asked by DANIELLE 
Compensation and Benefits
I need help with these question. I am not a 100% sure of my answers. Can someone please help. Thanks 1. All but which one of the following are major reasons for an employee to defer income? a) save for the future b) permit saving to accumulate interest tax
asked by Ann 
precalculus
Hi I have this question regarding ellipses. the equation is.. x^2/25 + y^2/169= 1 it asks for major and minor axis (i got 10 and 26) xintercept yintercept ((5,0)(0,13)) foci (12,0) points of intersection with line y= 12x graph graph the equation of the
asked by samantha 
Physics
Original Question: Neutral metal sphere A, of mass 0.10kg, hangs from an insulating wire 2.0m long. An identical metal sphere B, with charge q is brought into contact with sphere A. Sphere A goes 12 degrees away from Sphere B. Calculate the initial charge
asked by Alex 
math
To win the World Series, a baseball team must win 4 games out of a maximum of 7 games. To solve the problem, list the possible arrangements of losses and wins. How many ways are there of winning the World Series in exactly 6 games if the winning team wins
asked by Dana 
Chemistry
How do i write a good discussion/conclusion for a lab report.
asked by LT 
english
where can i find a translation to another language or help to do a tranlation to another language of marc antony's speech in julius caesar Act 3 sc.2
asked by laura 
Probability
1.John puts the letters of the word FOOTFEST in 8 different envelopes. Paul chooses an envelope at random. (a)(i)Calculate the probability that Paul chooses an envelope containg letter O (1/8 ?) (ii)Calculate the probability tthat Paul doesn't chooses an
asked by Anonymous 
mathradical equations
Here's one of the questions I have problems with: cube root of (x+2)=6th root of (9x+10) A. 1, 6 B. [13 +/ sqrt(193)]/2 C. 1, 6 D. [13 +/ sqrt(145)]/2 Please explain how to solve this. Should you cube both sides, or raise both to the 6th? and I get
asked by Jennifer 
Algebra
Which equation could be used to find the dimensions of a room that has a length of 8 feet longer than the width, x, and has an area of 240 square feet? (A) x squared  8x + 240 = 0 (B) 2x(2x8x+16)=240 (C) x squared + 8x + 240 = 0 (D) x squared + 8x  240
asked by Anonymous 
chemistry
Calculate the pH of a [Acid] M aqueous solution of each of the hydrochloric and acetic acids: Acid [Acid] pH HCl 0.10 HC2H3O2 0.10 I know that HCl is just log(0.10) which is 1, but can't get the pH of HC2H3O2.
asked by Renee 
algebra II
14. Solve the inquality 3(r11) + 15 equal or greater than 9. 15.Solve the inequality: 2 < 4z = 10 lessthan or equal to 12. 16. Solve the inequality 2x5 less than or equal to 10 or 33  4x < 5 17. Solve the inequality 3  m 4  > 6
asked by PJ. 
Biology  Heart Rate/Blood Pressure
Hi, can someone help me with these questions? Why is it that athletes have to exercise harder/longer to get max heart rate than people that aren't physically fit? Why does smoking cause rise in blood pressure? (Does it have to do with less oxygen getting
asked by Glen 
health
some sdvice on an essay I have to do on child development.How social skills are developed in children.What is selfesteem and selfconcept and how are these concepts developed in children?.The importance of social relationships.Effects on selfesteem and
asked by Bernadette 
English
Thesis statement: Networking is the most effective way in making your business grow faster. is it a good thesis statement? if not pls. can you make me another one.. thanks
asked by james 
Chemistry!!
A serving of potato chips is crushed and burned in a clorimeter. the calorimeter has 2000 grams of water in it and the initail temperature is 21.0 degrees celsius. If the water's temperature increases to 29.0 degrees celsius, how many calories
asked by Miley 
mathradical equations
Here's one of the questions I have problems with: cube root of (x+2)=6th root of (9x+10) A. 1, 6 B. [13 +/ sqrt(193)]/2 C. 1, 6 D. [13 +/ sqrt(145)]/2 Please explain how to solve this. Should you cube both sides, or raise both to the 6th? and I get
asked by Jennifer 
physics
A television uses a current of 1.5A at 120V. The television is used 2 hours. Calculate the power used in KW and the energy used in kWh.
asked by chantel 
Biology
How do the reproductive and hormonal systems of the human body interact and support each other?
asked by Bobby 
world hisrory
What British commander finally stopped Rommel advance across North Africa at the Battle of El Alamein in 1942, driving the Axis forces across Libya into Tunisia?
asked by Sue 
math
Evaluate the factorial. 5!
asked by Dana 
physics
a fork lift picks up a crate using 400 N. it moves the crate 20 meters in 50 seconds. how much power is used?
asked by chantel 
Trig
What is sin^2  cos^2 x/ 12cos^2 x, using the identities.
asked by Mary 
Maths  Series
1(a)Glasses are piled upon each other to form a tower.The rows are numbered,beginning with the top row.There is a single glass in the top row,two glasses in row number 2,3 in 3;etc.This continues to the bottom of the tower.A tower is needed which uses a
asked by Anonymous 
Chemistry!!
A 100.0 g sample of ethanol at 25.0 degrees celsius is heated and boiled completely to vapor at its boiling point. How much heat does it absorb? i did.... q=100.0 *2.44*43.5=10,614 J q=100.0*2.44*53.5=13,054. then i added the two q's together and i got
asked by Miley 
Science
How do telescopes work?
asked by Anonymous 
Math
2(a)Consider the arithmetic progression with terms A3=2 and A12=23. Find the sum of A1+......+A40 (can do) (b)In 1800 the population of England was 8 million. The economist Malthus (17661834) produced a hypothesis, suggesting:that the population of
asked by Anonymous 
Math
How do you do questions like this: 9y12=93 I need to know the steps as well.
asked by Alyssa 
science(chem)
Commercial hydrazine is sold as a 64% solution. Using that as your starting material, how would you prepare a 5% solution of hydrazine? well if it is sold as 64% solution would that mean that it has 64g of hydrazine per 100ml of solvent(water)? and what
asked by ~christina~ 
Functions
(a)Consider the function: f(x)=(7x+13)/(13x1) (i)Calculate the exact values of the coordinates of the points of intersection of the graph of this function with the coordinate axes. (ii)Calculate the equations of the asymptotes (b)The line h(x)=ax+b passes
asked by Anonymous 
math
8(5n)=2n
asked by christine 
Maths
In an orthonormal system, you're given the following: Point P(1,2) Lina a=cartesian eqn:4x3y+6=0 Line b=parametric eqns:x=5+3& y=& (real n°) Circle z=cartesian eqn:x²+y²2x3=0 (a)Calculate the angle between lines a an b (b)Calculate the coordinates
asked by Anonymous 
series
2(a)Consider the arithmetic progression with terms A3=2 and A12=23. Find the sum of A1+......+A40 (can do) (b)In 1800 the population of England was 8 million. The economist Malthus (17661834) produced a hypothesis, suggesting:that the population of
asked by Anonymous 
physics
A microwave oven uses 1000W of power.The voltage source is 120V. What is the current flowing through the microwave?
asked by chantel 
Algebra II
1. Find the value of 5 + 8 x 2 divided by 4  11 2. Evaluate (ay)^2 + 2y^3, if a =2 and y= 3 3. Evaluate a3b, if a=2 and b = 6 4. The formula A= 180 (n20 OVER N relates the measure A of an interior angle of a regular polygon to the number of sides.
asked by PJ. 
Physics
In calculating the force of gravity between two objects, if the mass of one objects increased by 4 and the other by 2, how many times would the force of gravity increase? Ok well Im horrible at physics but the way I understood it was that you would take 4
asked by Lynn 
statistics
evaluate the combination: there is a set of parentheses, 15 on top of a 15 it would look like this, just one set of parentheses (15) (15) i am just stuck
asked by Dana 
world history
In 1988, President Ronald Regan signed legislation which apologized stated that government action were based on "raced prejudice, war hysteria and a failure of political leader." What is the term for the $1.6 billions in payments that were later disbursed
asked by Sue 
grade 5 math
the grade 5 class decided to collect cans of food to donate to the food bank .After the 1st week ,they had collected 8 cans . The next week they collected 11 more . By the 3 rd week they had 31 cans Following this pattern how long will it take for them to
asked by Jeff 
math
Given a group of students: or count the different ways of choosing the following officers or representatives for student congress. Assume that no one can hold more than one office. A male president and three representatives a. 72 b. 9 c. 6 d. 3
asked by Dana 
research writing
how do you know when sources are reliable?
asked by Jeff 
Chemistry
What is the pH of the solution created by combining 1.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? This is how I would go about solving the problem, but could you tell me where I went wrong? First I would find the number of mols of OH
asked by Marie 
Maths  Sets
While I was doing some exercises on sets A question accured " M = {a,e,i,o,u} a) how many subsets are there of M ? When I did it was two , because a subset from my knowledge is that all of the elements in the set are there with the empty set The answer was
asked by Veronica 
chemistry
What is the pH value if you take into account that the 8.00 mL of 0.10 M HCl was first diluted with 100 mL of water and titrated with 1.60 mL of the 0.10 M NaOH i know that the concentration of HCl after diluting is .008M but than im not sure how to
asked by Jason 
Economics 101
Hey guys my Econ final is on Tuesday and I could use some help. These are 4 example questions true/false with explanation needed. 1. A monopolist will produce less and charge a higher price than a perfectly competitive industry. 2. Regardless of the type
asked by Zach 
English
I am writing a story about a girl who is living a stable life that she has created for herself. However, her biological sends her a letter apologizing for putting her up for adoption and telling she wants to see her. She is very confused. My last paragraph
asked by bill 
Statistics
If I have 4 standard deviations, how do I find the SD of the distributions of all of them? They are: .15 .16 .14 .15
asked by MW 
Adv. Math
How do you do these problems... 1) y/2+5>8 2) 4z+8
asked by Kenya 
ENGLISH
I CANT FIGURE OUT THIS WORD....IT MEANS CAUSING GREAT MISFORTUNE amtsoacausli
asked by TIFFANY 
math
4xy+z=5 2x+2y+3z=10 5x2y+6z=1 solving x,y,z with Matrices
asked by yumei 
Eth 125
Consider racial imbalances in education, the economy, family life, housing, criminal justice, health care, and politics, of these societal challenges facing modern African Americans, which do you think are most difficult to overcome, and why?
asked by Sam 
Algebra Repost
Which equation could be used to find the dimensions of a room that has a length of 8 feet longer than the width, x, and has an area of 240 square feet? (A) x squared  8x + 240 = 0 (B) 2x(2x8x+16)=240 (C) x squared + 8x + 240 = 0 (D) x squared + 8x  240
asked by Anonymous 
world history
What is the name of the battle fought on the Eastern Front in the Soviet Union between August 1942 and February 1943 that evolved into a bitter streetbystreet, housebyhouse struggle between the German and soviet armies?
asked by Sue 
math
Evaluate the permutation. P(5, 5) a. 1 b. 120 c. 0 d. 4
asked by Dana 
world history
At the end of World War I the Allieds had established the League of Nations as an international organization designed to ensure global peace, but it had failed miserably due to the fact that it did not possess the military force necessary to enforce any of
asked by Sue 
crit thinking
Identify any areas that are vague or ambiguous. If none exist, explain how you determined this. Identify and name any rhetorical devices used by the author. If none exist, explain how you determined this. Author Jeff Lindsay is no fan of horror novels,
asked by guzy 
math
Evaluate the combination. its in parentheses with the ten on top, and the 6 on the bottom, they are both in the same set of parentheses (10) (6 ) a. 5040 b. 210 c. 75,600 d. 48
asked by Dana 
IT205
I have a paper due tomorrow, well on Sunday may 4th of 2008. It needs to be in APA format and it should have 14001700 words. The guidelines is on the Bead Bar and it's System Development Plan. Below is an essay I have started on and I would like to have
asked by Guest 
Critical Thinking
Since it is the very nature of terrorism not only to cause immediate damage but also to strike fear in the hearts of the population under attack, one might say that the terrorist were extraordinarily successful, not just as a result of their own efforts
asked by Kay 
a&p
As sebum secretion increases, the skins permeability to water will?
asked by sam 
a&p
the amount of damaged epithelial tissue would most likely be greates in what type of fracture?
asked by sam 
a&p
If an astronaut returned to earth after a 180 day stay in a weightless space station he would have a decrease in bone mass? true or false?
asked by sam 
Biology12
If the process of ion attraction within the nephron is not functioning properly what would you expect to find in the blood and urine? Thanks!
asked by Montana 
Urgent Help In Accounting
January 1, 2008 Timber Company incorporated in the State of Pennsylvania. Initially it issued stock to three stockholders, Bob, Jim, and Frank. Each paid $50,000 (50,000 shares $.25 par value per share) for the stock. The Company¡¯s Articles of
asked by Anonymous 
math review question
The interest rate on an equity line of credit was 6 3/4 % last year. This year the interest rate is 9 1/2 %. How many percentage points has the interest rate increased?
asked by Ree 
scienc
the enivronment that is most favorable to an organism,s survival is its range of tolerance optimum conditions preferred environment best conditions
asked by bertha 
math
x2x=30
asked by Carmen 
Science
If the process of ion attraction within the nephron is not functioning properly what would you expect to find in the blood and urine?
asked by Miley! 
home economics
several factors people considered before investing in any financial instrument
asked by rosa 
home economics
A company is planning to invest $75,000 (before taxes) in a personnel training program. The $75000 outlay will be charged off as an expense by the firm this year (Year 0). The returns estimated from the program in the forms of greater productivity and less
asked by tina 
Statistics
Mortgage Rates In 2001, the mean contract interest rate for a conventional 30year first loan for the purchase of a singlefamily home was 6.3 percent, according to the U.S. Federal Housing Board.A real estate agent believes that interest rates are lower
asked by Curtis 
jj pearce
8(5n)=2n
asked by christine 
history
Do you culturally identify more with the ethnic group you examined?
asked by sharen 
Chemistry
How do I find the percent composition of H2O: 20.14grams C2O4: 51.64grams Fe 3+: 11.34grams K^+: 15.06 grams and the empirical formula with these numbers
asked by LT 
Algebra
How can I transform the equation 4=xy into one that begins with "y="? Would I subtract x from both sides to get x+4=y? This doesn't look right at all. Or would I add y to both sides and then subtract 4 to get y=x4? This way seems more correct to me.
asked by Anonymous 
Algebra
Calculate the relative error to the nearest tenth, compared to the actual measurements, given the following swimming pool measurements: Mr. Joe's measurements: 35ft x 17.5ft Actual measurements: 35ft x 22.75ft (A) 0.1 (B) 0.2 (C) 0.3 (D) 0.4 I got choice
asked by Anonymous 
physics
what is magnesium?
asked by chantel 
chem
why does the solubility of ytterbium sulfate decrease with temperature?
asked by Anonymous 
Chem
Which of the following has the largest molar mass? A. Water B. isopropanol C. ethanol
asked by Anonymous 
Chemistry
Dr. Bob ok well here is what i have gotten so far: on the problem H2O: 1.118 mol C2O4: .58681 mol Fe 3+: .2025 mol K^+: .3862 mol That is what ive gotten doing 20.14 g(1 mol / 18 g) = 1.118 mol and so on with the rest of them Did i do that wrong
asked by LT 
Economics
what is sales tax? and what is it used for?
asked by Lane 
Government
Which amendment is the direct result of a spiritual awakening?
asked by Will 
Biologyneed source
Hey I need a source that tells me the effects of seismonsastic movements on the growth of plants. Thanks!
asked by Matt 
english 2
is cassius honestly opposed to tyranny?
asked by the tradgedy of julius caeser 
English
rules of punctuation
asked by Anonymous 
Algebra Repost
How can I transform the equation 4=xy into one that begins with "y="? Would I subtract x from both sides to get x+4=y? This doesn't look right at all. Or would I add y to both sides and then subtract 4 to get y=x4? This way seems more correct to me.
asked by Anonymous 
math
Evaluate the permutation. P(7, 4) a. 1 b. 210 c. 7 d. 840
asked by Dana 
world history
Who was the U.S. general chosen to be the supreme commander of the Allied invasion forces that would strike into France from Great Britain?
asked by Sue 
physics
what is a joule?
asked by chantel 
Chemisty
Ok this is what i got for the grams part now.... Total mass is 20.14 + 51.64 + 11.34 + 15.06 = 98.18 %H2O = (20.14/98.18)*100 = 20.51% %C2O4 = (51.64/98.18)*100 = 52.60% % Fe 3+ = (11.34/98.15) * 100= 11.55% % K + = (15.06/98.15) * 100 = 15.43 % 20.51 g
asked by LT 
world history
What did the western allies build in the former Axis countries during a period of allied military occupation in order to protect the rights of all citizens?
asked by Sue 
Adv. Math
How do you do these problems... 1) y/2+5>8 2) 4z+8
asked by Kenya 
engl  citing
In my indroductory paragraph I talk about a certain individual. I mention her current profession etc. In the next sentence I give a quote by her. How do I cite that? Should I give her name and the page number? Or just the page number? Or do I even need to
asked by jamie 
History
The rise of industrialization radically changed life for people in the West in the nineteenth and twentieth centuries. Imagine that you are a person who grew up in a rural English farm village in the mid nineteenth century, but who will spend your working
asked by Sara 
Math
what is one half of 40 cm2
asked by Jack 
chemistry
how are molecules and poly atomic ions similar?
asked by Chelsea 
Biology (Psychology)
What could you infer/say if a person could distinguish the difference between regular and low fat foods? It's for my science fair project. Like, besdies saying that they have an extraordinary sense of taste... >.> And make it about the individual; not as a
asked by Confused