Questions Asked on
April 27, 2008

chem again
Use Charles Law to solve for the missing value of each of the following a) 80.0 mL, T1= 27 degrees C, T2=77 degrees C. V2 =? b)V1= 125 L, V2=85.0L T2=127degrees C T1=? c) T1=33degrees C V2=54.0mL, T2=160.0 degrees C V1=? can somebody help me with atleast
asked by jerson 
chem
In the trigonal bipyramidal geometry, which position axial or equatorial do nonbonding electrons prefer? why? I know its equatorial but I'm not exactly sure why
asked by natash 
Chem question
gont get it.. To what temp must a sample of nitrogen at 27 degrees C and 0.625 atm be taken so that its pressure becomes 1.125 atm at constant volume i used the formula and it still gave me a weird answer
asked by jerson 
algebra
A certain population of bacteria doubles every 3 weeks. How long will it take for a population of 3,500 to triple?
asked by Alice 
geometry
if 6 oz of dough are needed to make an 8in. pizza, how much dough will be needed to make a 16in. pizza of the same thickness? (compare the areas of the pizza tops) i don't know what to do
asked by anna 
Physics
A system undergoes a twostep process. In the first step, the internal energy of the system increases by 368 J when 144 J of work is done on the system. In the second step, the internal energy of the system increases by 24 J when 248 J of work is done on
asked by Sally 
accounting
do anyone have answers for exam 06160500 for penn foster
asked by sandra 
chem
how would you find the ratio of moles of copper produced to moles of iron used is the moles of iron used is .067 and the moles of copper produced is .01?
asked by Kayla 
Critical Thinking
Address the following: What feedback did you receive from your instructor? From the peer reviewer? From the Center for Writing Excellence? Explain how you will incorporate the feedback into your paper. How will this feedback improve your expository essay?
asked by Anonymous 
geometry
An advertisement states that a RotoSprinkler can water a cicular region with area 1000 ft^2. Find the diameter of this region to the nearest foot. Use pi = 3.14.
asked by anna 
Physics
Compressed air can be pumped underground into huge caverns as a form of energy storage. The volume of a cavern is 5.60 105 m3, and the pressure of the air in it is 8.40 106 Pa. Assume that air is a diatomic ideal gas whose internal energy U is given by U =
asked by Janaih 
Physics
The artificial sweetener NutraSweet is a chemical called aspartame (C14H18N2O5). (a) What is its molecular mass (in atomic mass units)? 294.13 u (b) What is the mass (in kg) of an aspartame molecule? kg I was able to find the mass units but I'm having
asked by Will 
Calculus
If you invest $5000 in a stock that is increasing in value at the rate of 12% per year, then the value of your stock is given by: f(x) = 5000(1.12)^x, where x is measured in years a) find average value from x = 2 to x = 3 b) find instantaneous value at x =
asked by Anonymous 
Physics
Two blocks, with masses M1 = 1.4 kg and M2 = 9.9 kg, and a spring with spring constant k = 228 N/m are arranged on a horizontal, frictionless surface. The coefficient of static friction between the two blocks is 0.59. What is the maximum possible amplitude
asked by help? 
algebra
simplifying exspreesions
asked by omar 
Report
How did gangsters like Bonnie and Clyde and Al Capone escape from the police before bullet proofing their cars? And how did the bullet proof cars help them?
asked by Jennifer 
English/ Literature
I'm writing an essay for my class on the book the Lord of the Flies. I need some help thinking of a specific topic, however. Here's the assignment: think of how one of the novel's symbols adds depth and/or richness to its allegorical meanings. OR think of
asked by Monica 
more CHEM proofreading
for this question A sample of air has a volume of 140.0 mL at 67 degrees celcius. At what temperature would its volume 50.0 mL at constant pressure I did 140.0 ml... 67+273=340 T2... 50.0 140.0=50.0 340=T2 340*50.0/140.0=121.4 This question i don't get
asked by jerson 
psychology
jim examines the effect of type of music on task performance. Type of music represents which type of measurement scale
asked by kim 
French
hi there, could anyone please proofread this for me? many thanks! il y a cinq ans que j'ai vu un accident. il faisait beau, et ma parents et moi allions du supermarché. Ma père conduisait. Quand nous passé le feux de signalisation, nous avons voyions
asked by lin 
chemistry
Why doesn't potassium ion K+ from KMnO4 appear in the following two unbalanced equations: MnO4– + C2O42– Mn2+ + CO2 MnO4– + Fe2+ Mn2+ + Fe3+ ? A. KMnO4 is not added to either reaction. B. The presence of K+ would result in a net positive charge in
asked by Renee 
chemistry
Light travels at a speed of 3.00 * 10 to the power of 10 cm/sec. What is the speed of light in Kilometers per hour?
asked by tina 
English/ Literature
What's an unique and compelling thesis statement that i could create about the parachutist and the naval officer in the classic novel "lord of the flies"?
asked by Monica 
Statistics
Use the standard normal distribution to find P(2.25 < z < 1.25).
asked by Andrew 
chemistry`
What direct, nonfuel uses of petroleum are involved in the daily operation of a Hybrid? Please help I don't understand the question!
asked by lisa 
English
pronouns 16a. Anyone who requests a copy of the game may have it for their video library. 16b. Anyone who requests a copy of the game may have it for his or her video library. My answer is B. what type of pronoun is this? Thanks
asked by Becky 
maths
11/3058
asked by Paige 
physics
An ideal gas at 18.5°C and a pressure of 1.54 105 Pa occupies a volume of 2.10 m3. (a) How many moles of gas are present? moles (b) If the volume is raised to 5.30 m3 and the temperature raised to 31.0°C, what will be the pressure of the gas? Pa I used
asked by Will 
physics
In a diesel engine, the piston compresses air at 302 K to a volume that is 0.0628 of the original volume and a pressure that is 48.2 times the original pressure. What is the temperature of the air after the compression? Ok I know I have the temputure of
asked by Tim 
Social Studies
Was Nixon the future U.S. president that played a major role in HUAC invesitagions and hearings?
asked by Mandy 
chemistry
why is the formula written for an ionic compound such as NaCl the empirical formula,rather than a molecular formula?
asked by caleb 
English Grammar
1. He knifed a person last night. 2. He knives a person every year. 3. He knifes a person every year. 4. There are three knives on the table. Which one is incorrect among the four? Would you check the conjugation of the verb knife or the noun knife?
asked by John 
HELP
Why is water essential to health maintenance? o What are the functions of water in the body? o What happens to the body when it does not get the water it needs? o Compare and contrast how different electrolytes—sodium, potassium, and chloride—function
asked by Dawn 
algebra
A rectangle is 16 inches wide and 20 inches long. If the length of this rectangle is changes, how many square inches of are are added for every inch in length that is added to this rectangle? Please show work.
asked by Ashley 
math
find the slope of the line that contains A(2,3) and B(6,8)
asked by brooke 
math
1. find the yintercept of the equation y= 3x 5 2. find the slope of the line that contains C(2, 3) and D(4,1)
asked by brooke 
Calculus please help
I have 3 calc problems that i have not been able to do please help me... i've been on here yesterday as well but no one was able to assist me with these particular ones... 1. If f(x)=5x^3–2/x4 find f'(x)____ what i got was (4x^2+7x12)/x^8 2. The
asked by John 
Essay!
how do i phrase a thesis statement about the background events that are occuring during the novel the lord of the flies? PLEASE HELP ME! :)
asked by Abby 
algrebra
show that b is inverse of a a=[1 1 3] [2 1 1] [2 1 4] b= [0 1 2] [1 1 2 ] [1 0 1] i got ab = to [1 0 0 ] [0 1 0] [0 0 1] and for ba i got [1 0 4] [0 1 8] [0 0 5] so there is not a inverse is this right
asked by sandy 
english
Pleae unscramble vrafos
asked by sarah 
Opinion Question: Your opinions are needed please!
I am writing an essay and our teacher would like for us to include opinions given by other people. Question: How should colleges manage their athletic programs in relation to their academic goals? Your opinions are greatly appreciated!!
asked by Britney 
please review
these two paragraphs are from a paper I am writing for my international law class can someome please revise and let me know what you think. thanks Indeed, as it was customary, over foreign public vessels in its ports nation’s understood to waive the
asked by Christi 
Stats
The local lottery sets up a game wherein a player has a chance of collecting $750. The player must choose a 3digit number and if it matches, the player receives $750 It costs $1 to play the game. What is the expected profit (or loss) for each player.
asked by Andrew 
PLEASE SOMEBODY Answer this Statistics question!
The local lottery sets up a game wherein a player has a chance of collecting $750. The player must choose a 3digit number and if it matches, the player receives $750 It costs $1 to play the game. What is the expected profit (or loss) for each player.
asked by Andrew 
math
3b2/b+1=4b+2/b1
asked by Kimberly 
English
16a. Anyone who requests a copy of the game may have it for their video library. 16b. Anyone who requests a copy of the game may have it for his or her video library. What type of pronoun is this?
asked by Becky 
math
On the blueprint of Lauren's new office building, the scale is ¼ in. equals 1 ft. What will be the actual length of Lauren's office if it measures 4 in. long on the blueprint?
asked by Lisaraye 
math
How do you convert a polar equation when its x squared+ y squared =10?
asked by Yasmine 
English TKAM
In the novel, "To Kill A Mockingbird," when did the courtroom scene take place? (time during the novel) Like what month and year
asked by Lena 
Pre Calcdecode matrix
help!matrix size is 3x3 clues for the encoding matrix: 1. all entries are one digit and positive 2. a11, a12, a13 are all equal and prime, their sum is also prime 3.the sum of a11, a12, a13 is equal to a21 4. the sum of a22 and the opposite of a33 is
asked by Stephanie 
English
Need ideas for creating a future society. Laws, education, finding leaders, city plans, money. I have most of it done but need to add some more ideas. Thankyou.
asked by Gordon 
English/ Literature
Ok I need some help getting started here's the assignment: Think of how one of the novel's symbols adds depth and/or richness to its allegorical meanings. (ie. the conch, the fire, Piggy's glasses, or the island itself). OR think of a conflict or
asked by Monica 
Essay helpplease
Hi, I'm suppose to be doing an essay on To Kill A mockingBird. On my intro paragraph, my last sentence has to be 'explicitly stated plan' , is this right? "I will provide evidence from the novel which show that the three characters mentioned above, fulfill
asked by May 
frogs
What is the finger like bodies of fat atttached to the testis. Stores enough food energy to alow the frog to hibernate during winter.
asked by brit 
French
Hello, can someone please proofread this for me? thanks. sigh,i can do the exercises in the grammar workbooks but when it comes to writting passages like this...i make so many mistakes it is not funny... could someone please point out the mistakes?
asked by lin 
AED
determine which factors may explain that the most of the higher perpupil expenditures are found in the Northeastern and upper Midwest states and the lower perpupil expenditures are found in the South and West. what happens to create a balance in school
asked by Dawn 
science
what are the abiotic enviromental factors of the Coelacanth? that's the only thing that i can not find please help! thanks
asked by Anonymous 
Statistics
The local lottery sets up a game wherein a player has a chance of collecting $750. The player must choose a 3digit number and if it matches, the player receives $750 It costs $1 to play the game. What is the expected profit (or loss) for each player.
asked by Andrew 
Math
If 8x + 5x + 2x + 4x = 114, then 5x + 3 = a.12 b.25 c.33 d.47 e.86
asked by Irene 
math
im trying to take the derivative of this problem and plug in seven but im not getting the answer. s=t3–2t2–6t t> or equal to 0 where s is measured in meters and t in seconds. When does the particle reach a velocity of 7 m/s?
asked by rudy 
Elec. and Comm. Eng'g
This is my outline to my research paper. (Topic): The Importance of Networking in Selling Company's Product (Thesis Statement): Networking is the best way in selling company's product. I. What is importance of networking in selling company's product II.
asked by James 
English
Pronoun case for who and whom 23a. Jon Bon Jovi, who is a wellknown singer and actor, also owns an arena football team. 23b. Jon Bon Jovi, whom is a wellknown singer and actor, also owns an arena Please what is the correct answer? I chose (A).
asked by Timmy 
ks3 music
for my homework i need to explain what a musical chord is and give an example of how to play it thankyou for your help
asked by hula 
social studies
What is a flow chart?
asked by gil 
Social Studies
What wer some of the key issues in the election of 1948?
asked by Tyran 
English
What 20th or 21st century person is similiar to either Brutus, Ceasar, Cassius or Anthony from Shakespeare's play Julius Ceasar
asked by Jon 
science
Whicb moon would look the brightest from jupiter?
asked by leona 
music
wot does conceps mean??? why do we have to learn them? I'm so confused into how i can learn this subject? Everone else can learn it dead easy? please help me with the music conceps?
asked by Amy Howes 
AED
includes your description of the category of atrisk students you chose. I would I describe the poverty of the at risk students
asked by Dawn 
Science
The question in the book says: A wave has a wavelength of 2mm and a frequency of 3 Hz. At what speed does the wave travel? I know the answer is 6, because the formula is Speed= Wavelength X Frequency, but I don't know how to write the final answer, it's
asked by Alek 
SCI 275
Write a 700 to 1,050word paper in APA format that includes the following: o A brief description of the water resource problem in the video and how it originated. o A management and sustainment plan that you think will benefit both sides of the issue. o
asked by BaBa 
arithmetic
Give the place value of 7 in 3,738,500.
asked by Andrea 
Philosophy
1. What is Parmenides’ argument that change is an illusion? Explain the way in which Parmenides is using the philosophical method. How do Plato and Aristotle respond?
asked by Dian 
science
Where can I find a picture of a house that contains examples of things in a "green home". Not a real house a drawing.
asked by kim 
Science.
What effect does water loss (through heavy perpiration) have on a person's endocrine system?
asked by Jin 
cultural diversity
Complete the matrix in appendix E using information from the Asian Pacific American Heritage Month press release on the U.S. Bureau web site
asked by jennifer 
Calculus  Damon
hi sorry the first one was actually If f(x)=5x^3–2/ x^4 find f'(x)____ and for some reason the other two are wrong but thank you anyway
asked by John 
History
What would Eisenhower be remembered for?
asked by Gail 
Mathematics
Give the place value of 7 in 3,738,500.
asked by Andrea 
English
I need to think of an exciting title for a newspaper article about a maddog. Could you help by giving me some words that might grab a reader's attention?
asked by Lena 
Chemistry
Which of the following is NOT TRUE? A. The blank for this experiment must have 100 % transmittance if placed in a spectrometer (Spec 20). B. The volume required to titrate the blank is subtracted from the volume used to titrate the analyte solution to give
asked by Adam 
General Knowledge
Characteristics of Contemporary Dating
asked by Mich 
English
Identifying antecedents 11a. The antecedent in the following sentence is Doctors: Doctors should schedule more time for patients so they do not spend so much time in the waiting room. 11b. The antecedent in the following sentence is patients: Doctors
asked by Hilda 
English
Why and how could you apply critical thinking when evaluating each of the following: 1) articles 2) Media 3) Advertising 4) conversations. Please help, I'm lost for words to use.
asked by Wayne 
history
summarize Luther's Protestant reforms and the church's reactions. explain the reasons behind the spread of Protestantism.
asked by a person who needs the answer so badly 
math
2x+1/3x5/4=1/2
asked by Kimberly 
math
2/x1=x8/x+6
asked by Kimberly 
math
13x+16/4x1+8xx+12x+14/4xx+11x3=24x8/x+3
asked by Kimberly 
math
6/x7x/5=x/10
asked by Kimberly 
math
3x/x+1=12/xx1+2
asked by Kimberly 
elecronics
how do you record on a cassette tape?everytime I click record, it won't record what I say?
asked by somewhere out there 
math
The population is 2,253,291 in 2000 and 2,264,617 in 2001. What is the growth rate? Thanks!
asked by Charlotte 
English
Why and how could you apply critical thinking when evaluating articles? Please help!!!!
asked by Martha 
environmental
economics ,social practices during the next 5 years wich do you think will have the most important impact on your used book business?why
asked by darlene 
chemistry
why are anions always larger than the atoms from which they are formed
asked by caleb 
AED
research one or more exemplary programs in your state, school district, and/or community that help meet the needs of the selected group of atrisk students. I live in Florida. The group i chose is poverty.
asked by Dawn 
English Grammar
1. He ordered three pizzas. 2. He ordered three pizzaes. 3. He ordered three pizza. 4. He ordered thee pieces of pizza. Which one is correct?
asked by John 
sci275
I need help coming up with an environmental problem within energy conservation.
asked by Mimi 
chemistry
The atomic masses of elements are generally not whole numbers. Explain why.
asked by paul 
chemisry
How does the precision of a calculated answer compare to the precision of the measurements used to obtain it?
asked by paul