Questions Asked on
October 5, 2008

AP Chem
Combustion of 6.38 mg of ethylene glycol gives 9.06 mg CO2 and 5.58 mg H20. The compound contains only C, H, and O. What are the mass percentages of the elements in ethylene glycol?
asked by Anna 
Chemistry
Choose the true statements regarding the chargeminimized Lewis structure(s) of the BrO2 ion. (selet all that apply) a. There is only one chargeminimized structure for this ion. b. There are two chargeminimized resonance structures for this ion. c. The
asked by Lindsay 
math
the price p and the quantity x sold of a certain product obey the demand equation p=(1/3)x + 100 o is < or equal to x < or equal to 300 A) express revenue R as a function of x b) what quantity x maximizes revenue.
asked by jan 
Chemistry
I need help with these two problems: At a given pressure and temperature, it takes 4.55 min for a 1.5 L sample of He to effuse through a membrane. How long does it take for 1.5 L of H2 to effuse under the same conditions? A gasfilled weather balloon with
asked by Amy 
Project Management
Case Study: Calcutta's Metro In 1996, Calcutta’s longwaited metro finally opened to a collective sigh of relief from the longsuffering population of this large Indian city. Critics had long derided the project a one of the “slowestmoving” public
asked by animal 
Project Management
Case Study: The Dulhasti Power Plan Begun in 1985, the Dulhasti Power project, set in the northern Indian provinces of Jammu and Kashmir, represents an example of a disaster in project cost estimation and delivery. As initially conceived, the project’s
asked by animal 
AP Chem
Calculate the number of atoms in 32.0 g Br2. I keep getting 1.20 * 10^23 atoms Br2 but my book says i'm wrong.
asked by Anna 
11th grade physics
my physics teacher asked the class to find a cool physics topic and write a summary and a reflection on it 1page.... any ideas im really stuck
asked by JESSICA!!!!!!!!!!!!!!!!! 
Grade 11 Physics
Rearrange the equation : d=v2t  1/2at(squared) to solve for a
asked by Student 
math
Name 2 ways decimals are used in everyday life
asked by BAylee 
trig
a ship has maintained a bearing of 47 degrees. ( a bearing is the angle measured clockwise from due north) a) how far has the ship sailed if it is 200 miles north of its original position? b) how far east of its original position is the ship? c) if the
asked by jerson 
math
The greater of two numbers is 1 more than twice the smaller. Three times the greater exceeds 5 times the smaller by 10. Find the numbers. The second of three numbers is 1 less than the first. The third number is 5 less than the second. If the first number
asked by delaney 
chemistry help
A 265 g aluminum engine part at an initial temperature of 2.00°C absorbs 84.5 kJ of heat. What is the final temperature of the part (c of Al = 0.900 J/g·K)?
asked by james 
thermochem
An unknown volume of water at 18.2°C is added to 27.0 mL of water at 36.7°C. If the final temperature is 23.5°C, what was the unknown volume? (Assume that no heat is lost to the surroundings; d of water is 1.00 g/mL.)
asked by james 
AP BIo
IF a core is cut from a carrot and the hole is filled with corn syrup and sealed by a glass tube and then suspended in pure water, what would happen to the cells adjoing the hole, to the epidermal cells? Also, what will happen to the level of the liquid in
asked by Kelly 
health
the three things that describe and difine what enviorment is ?
asked by emmanuel 
Science
How is density expressed
asked by Pat 
french
I have to write a paragraph in french about who i am where i live and what pets i have,my name is Harry White I am 12 years old I live in Buckingham and have 2 dogs 5 cats how on earth do I write that in french
asked by Harry 
AP Chem!
Hey, I have a test tomorrow in ap chemistry on gases. My teacher said that the test would be many open ended questions that are sort of like "explain what happens when a balloon is lowered into 77degrees C of liquid nitrogen and why" Can you guys give me
asked by Adrian 
math
im in grade 7 and ihave amath question wallet a contains 36 coins of quarters and loonies in the ratio 2:7 Wallet b contains 36 coins of quarters and loonies in the ratio 1:3 Wallet c contains 36 coins of quarters and loonies in the ratio 1:5 which walllet
asked by peter 
chemistrythermochemistry
A student mixes 85.7 g of water at 68.0°C with 50.7 g of water at 24.5°C in an insulated flask. What is the final temperature of the combined water
asked by james 
US History URGENT
2. Which original political party appeared to have the broader or more democratic base of support? I said the DemocraticRepublicans had a broader base of support bc they wanted protection of their basic rights for the common people. There were more common
asked by Mike 
10th Grade English
what is the central human tradgedy of the Iliad? what is its most important theme?
asked by Joselyn 
algebra
factor completely x^2+6xy+8y^2
asked by mike 
algebra
The base of a triangle is 4cm greater than the height the area is 48cm^2 find the height and the length of the base
asked by Anonymous 
9th grade
what is nickel's state of matter at room temperature
asked by tishelle 
math
Write the ratio of 4 1/3 to 6 in simplest form.
asked by selma 
Chemistry
The color change of the bromothymol blue with water is caused by carbon dioxide from your breath. How can you test this hypothesis? Need answer immidiately.
asked by R 
History the civil war
I am anti slavery what are the differences in the 2 sides that fought in the civil war? I mean, was one side anti slavery and the other not? Because the question asks "if you were to fight in the civil war, for for which side would you fight and why"?
asked by Jason pol 
algebra
5x=7+4y 20x16y=28 how many solutions are there for the system of equations? Infinitely many solutions No solution. two solutions or three solutions?
asked by dj 
math 116
a water line is given by the equation y =  2/3x  12 . Suppose you want to put a pink flamingo lawn ornament in your backyard, but you want to avoid placing it directly over the water line, in case you need to excavate the line for repairs in the future.
asked by Carmen 
algebra 2
Pete and Kathy are standing at home on a softball field. Pete starts walking up the third base line at the rate of 6 feet per second. At the same time, Kathy starts jogging up the first base line at the rate of 10 feet per second. In how many seconds will
asked by mike 
college physics
a golfer rides in a golf cart at an average speed of 3.10 meters/sec for 28.0 sec. she then gets out of the cart and starts walking at an average speed of 1.30 m/s. for how long in seconds must she walk if her average speed for the entire trip, riding and
asked by ksunhsine 
american history
ok im doing a crossword puzzle on the constitution info...i'm doing 11th grade history and i just need 2 answers left... the 1sr is , powers of both the state and federal governments (but the third letter is s) ..2nd is and anti federalist (during the
asked by gaby 
anatomy
can any tell me of a website that will give me info on abnormal Urinalysis test, describe and name possible results and indicate the disorders that these abnormal results may suggest ?
asked by unknown 
PSAT HS
How do i start studying for the PSATs which are in 1 week and a half?
asked by Temisan 
9th grade
How do you calculate the velocity of a quarter dropped from a tower after 10 seconds?
asked by Layla 
World History
How did the Magna Carta and the Bill of rights lead to a change in goverment.
asked by Rachel 
sociol studies
plse help me 12 the ____ islands were added to the united states in 1898 but never became a state. 14 queen liliuokalani attempted to prevent these islands from becoming part of the united states. 5. a central american country dominated by the u.s 10. He
asked by Amy 
Physics
Two men lifted a total mass of 653.2 kg approximately 4 in. off the ground a total of 24 times. Estimate the total mechanical work done by the two men in lifting the boat 24 times, assuming they applied the same force to the boat during each lift. (Neglect
asked by Sandhya 
science
what is silicon?and what is it used for
asked by Bre m. 
math
I don't know if this answer is right so i am trying to check it here maybe if any could help The function f(x) = x  x 4 has a graph that is symmetric with respect to the y axis right?
asked by Natasha P. 
Math Rational Functions
1. Some rational functions have asymptotes, others have holes, and some have both. Explain how you can identify, without graphing, which graphical features a rational function will have. Can someone explain this thoroughly ? I don't understand. thanks in
asked by Mae 
7th grade science
What is a simplified reprsentation of reality? It is either a model,table,variable,or an inquiry. Does anyone know the answer?
asked by Cailey 
college physics
an automobile starts from rest and accelerates to a final velocity in 2 stages along a straight road. each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.0m/s^2. the magnitude of the car's velocity at the
asked by ksunhsine 
college Math Word Problem
The mass of Uranus is about 8.7x10^22 metric tons. The mass of the sun is about 1.998x10^27 metric tons. About how many times the mass of Uranus is the mass of the sun? Give your answer in scientific notation.
asked by Matt 
Project Selection
If cost and rate of return were the only determining factors in the selection of a project, which one would you agree is the best selection? Scoring model: project 1: Score = 22 project 2: Score = 28 NPV analysis: project 1: $60,995 project 2: $25,695
asked by animal 
math
Write a proportion that is equivalent to the statement: If 3 gallons of gasoline cost $5.37, then 8 gallons will cost $14.32.
asked by selma 
Science
how do you calculate if a block of wood dropped form a tall building has attained a velocity of of 78.4 m/s, how long has it been falling?
asked by Layla 
Project Management
Evaluating the Two Methods of Risk Analysis Explain how the results in both quantitative and qualitative analysis are used in both recommending moving forward with a project and planning a project. • Analyze and explain the difference between qualitative
asked by animal 
latin
is there a site that i can practice simple sentence translations, where it will give the answer if i am wrong?
asked by laurie 
math 116
I thought I knew this stuff but now I'm starting to wonder. I've tried several times but I haven't been able to figure this out. there is also a diagram showing a water line where the y intercept is crossing over (0,12). the question is Q: what is the
asked by Carmen 
math 116
1) you are planning to spend no less than $6,000 and no more than $10,000 on your landscaping project. Q1: write an inequality that demonstrates how much money you will be willing to spend on the project. A1: 6,000 greater than > and equal = to 10,000 Q2:
asked by Carmen 
Math Problem
The slope of the "secant line" between the points (2, 5) and (x, x 2 + 1) in simplified form is, what?
asked by Casey 
thermochemistry
Calculate the amount of heat liberated (in kJ) from 374 g of mercury when it cools from 83.7°C to 19.1°C.
asked by james 
calculus
Let C be the curve which is the intersection of the halfcone S1 = {(x,y,z)z=sqrt(x^2 + y^2} and the paraboloid S2 = {(x,y,z)2z=3x^2y^2}. Find C. a)Make a 3D sketch to show S1, S2, and C b) Show that at each point on C the normals to these two
asked by mark 
history
describe the connection between student unrest and the vietnam war
asked by Anonymous 
college  phonetics
how do you transcribe the "th" sound in "SLP language"?
asked by cutie 
Environmental Science
We are being asked to identify reasons that an article is or is not science using the list of 8 characteristics of science. What are the 8 characteristics of science?
asked by Alexa 
american history
i'm in a highschool american class and were learning about the constitution time.. who was an antifederalist of this time and what is the name of powers kept by both the state and federal governments
asked by gaby 
history
what items would you carry on a trip in the 15th century?
asked by rob 
English
In the concluding paragraph of an essay, is the thesis supposed to be restated at the beginning of the paragraph or at the end?
asked by Anonymous 
microecomomics
When deriving an individuals demand curve how do you find the optimal bundle if you are only given: price of 2 goods and income. i.e price of wine: $35 price of beer: $12 Income= $419
asked by please help! 
language arts
please explain how to make the word fireman possessive
asked by dawn 
Honors Biology
The inability of defensin to function in highsalt environments is at least partly responsible for the pathology of this disease. Imagine that you are the director of a biotech company that specializes in manufacturing human proteins by producing them in
asked by Emily 
Accounting  Adjusting Entries
$750 of insurance expense needs to be accrued. It was originally recorded as prepaid insurance. Do I just debit prepaid insurance and credit insurnace expense for $750?? My other problem is adjustment was made to record interest expense on bonds payable
asked by Liz 
11th grade physics
is there physics in football
asked by JESSICA!!!!!!!!!!!!!!!!! 
sports
what strategies are used to encourage football participation?? please help
asked by elizabeth 
Ap chemistry
I'm taking ap chemistry also! I was just wondering about how much space they give you on an ap chemistry test the Multiple choice section, is it enough space for work? Do they give you scrap?
asked by Jaqui 
algebra
Can you help me figure out this? 7+3x=5x+13
asked by Katrina 
communication
How will you apply the knowledge you have gained about effective business communication in your current or future job and college courses?
asked by LILSISTER 
pysical science
Write a letter to persuade a friend that a change in temperature does not necessarily mean that a chemical change has occurred .
asked by nina 
paging Writeacher
I actually would like to voice a concern (or rather complaint) regarding your contribution to the englishchariots of fire movie discussion thread that was originally started by Martha. I would like to continue that conversation. with you. Please refer to
asked by Brandon 
11th grade physics
im not procrastinating i really don't understand it. im not asking for the answers im just asking for a little more help??
asked by JESSICA!!!!!!!!!!!!!!!!! 
World History
How are the Assyrian and Phoenician empires alike?
asked by Martin 
us history
What changes were brought upon by the Progressive Era?
asked by Jose 
History
What are some solutions to the issue of slavery? all I can think of is protesting against it. is that good? what other solutions can help the issue?
asked by Jackson 
Algebra II
for the line, y=3x2; list 5 possible solutions (ordered pairs)
asked by Alexis 
10th grade,english
Group the following words into categories:allegory,fable,slogan,tactics,Spontaneous Demonstrations,rebellion,second class,first class,comrade,fairy story,prose,poem,indoctrination,propaganda,commandment,cryptic,morose,loyal,frugal,sunday
asked by Lily 
Science  Chromatography
I performed a TLC of plant pigments in my lab class with a solvent of petroleum ether/ acetone (7:3) and used a silica gel plate. It is expected that the most polar pigments (chlorophyll) will be located near the bottom and the carotenoids near top. In my
asked by Veronica 
AP Chemistry
I think this is a units issue, i keep getting the wrong answer. the formula should be rate1/rate2= (molar mas 2/ molar mass1)^1/2 but every time i do it, i get it wrong, and when i do rate1/rate2= (molar mas 1/ molar mass2)^1/2, i get the right answer. It
asked by Emily 
Chem/Physics
Are there two ways of calculating the average kinetic energy of a molecule? Ik that 1/2mv^2 works but for this problem, i don't know the mass or the velocity....
asked by Rachel 
science
*what are Required government, societal, and global support for air pollution. *Benefits and challenges of air pollution do you know any sites I can find these answers at?
asked by scooby9132002 
Law
Which activities are governed by the Canadian Charter of Rights and Freedoms and which are not? Describe the distinction.
asked by Tracy 
anatomy
what kind of cells would form a scar on the head after cancer had been removed.
asked by j 
math
solve for the unknown 2/3 over 10=1.8 over x
asked by selma 
MATH
The slope of the "secant line" between the points (2, 5) and (x, x 2 + 1) in simplified form is, what?
asked by Casey 
PRE CALC
The xintercept of the graph of f(x) = sqrt(x  1)  2 is (5, 0)
asked by Karren 
language
does anyone know of an expression with the word thigh in it
asked by martha 
Science
what if you don't know the height of the tower to calculate the avg. velocity?
asked by Layla 
math
solve for unknown 8 over 52= x over 39
asked by selma 
music
How do you do ledger lines they are super confusing
asked by sela 
MATH
what is the domain of f(g(x)) If f(x) = 3x + 2 and g(x) = x/(x 2) How do I do this problem?
asked by Karren 
Chemistry/physics
Are there two ways of calculating the average kinetic energy of a molecule? Ik that 1/2mv^2 works but for this problem, i don't know the mass or the velocity....
asked by Rachel 
science
I need to find the term for this statement: process by which substances pass in and out of cells
asked by Yasi 
sociol studies
im srry i know i already asked about some things but i cant figure out thes two 8. minor c. keith provided financial service to this country in return for long term leases 13. this said that cuba must allow the u.s to establish naval bases there is the
asked by Amy 
math 116
suppose you want to add a sprinkler system, and the location of one section of the sprinkler line can be described by the equation y =  1/2x  4 complete the following table: x y (x,y) ? 1 ? 2 ? ? ? 4 ? 2 ? ? 8 ? ? my answers: x y (x,y) 1.5 1
asked by Carmen 
Social Studies
Which statement is true about Africa? (A) It has 2 large deserts. (B) Most most people live in southwest. (C) Most of the worlds people live their. (D) It is about 3 million square miles in size.
asked by Emily 
SATs
I am taking the SATs soon and i feel like i have a lot of reasources, but i don't have enough time to study all of it, how do i condense? What is the most important i think my best section would be math, then writing, then reading.. (i don't think sending
asked by Lynn 
Healthcare
Need some help with some consequences of seperating mental health from physical healthcare. Also some other services(social and health) might be needed by mental ill
asked by Nikia walker 
science
Can some one help me with the simpsons controls and variables worksheet please,
asked by Anonymous 
11th grade physics
bob where r u !!!
asked by JESSICA!!!!!!!!!!!!!!!!! 
Honors Biology
The inability of defensin to function in highsalt environments is at least partly responsible for the pathology of this disease. Imagine that you are the director of a biotech company that specializes in manufacturing human proteins by producing them in
asked by Emily 
algebra
how do i figure this out step by step? 3x7=5x+13
asked by Mat 
Science
I need help determining what impact the following has on force: The factor of 2 is added to force and the mass is cut by 1/3. Can anyone help me? Tahnks!
asked by Donna 
Math
rewrite y=x^2+2x5 into the form y=a(xh)^2+k, and state the maximum or minimum value of y and the value of x when it occurs.
asked by Hannah 
psychology
What was the first experiment in which B.F. skinner tested the theory of operant conditioning? Details on the experiment? Any help would be appreciated. =)
asked by alexa 
Current events
Does anyone know pakistan's current position on russia/georgia, the environment,and the status of permanent refugees?
asked by Kate 
Health
I'd like to improve vision. What can we do to improve eye sight? Would you let me know how? website address as well.
asked by John 
1st grade
make the shape.use your patternblock template.
asked by Anonymous 
Introduction to database design
Given the following complicated business rules, create the appropriate Crow’s Foot ERD. (50 points) a. A store may place many orders. (Note the use of “may”) b. An order must be placed by a store. c. An order contains at least one order line. d. Each
asked by Lamar 
Health
Is it not good for health to eat soup all the time? Responses Health  Ms. Sue, Sunday, October 5, 2008 at 8:55pm Why not? Homemade soup with fresh meat and vegetables is healthy. Canned soups usually don't provide the nutrients and have far too much salt.
asked by John 
science
how can a solution be separated?
asked by bailey 
algebra HEEEEEEEEEEEEEEEEELPPP!!!!!
given two points one a line (8,1) and 10,8) find the x intercept and y intercept PLEASE HELP!
asked by Mary 
algebra
give the slope for the following lines: y+2=0 and x3=0
asked by James 
Economics
How has today's economy affected the airline industries?
asked by Becky 
Calculuspartial derivatives
Let Z = f(u,v) where u=xy^3 + e^3 and v = (x^2)y. Obtain expressions for Zx and Zy in terms of fu and fv. I don't understand the "in terms of" part. How do I do this question? thank you
asked by mark 
6th grade
Social Studies I'm looking for some information about the Minnesota Zoo. I want to know some history about it for my ABC Notebook. I have my pictures and letter colored but I just need the information next.
asked by Hailey 
science here is the worksheet someone help me
Smithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to
asked by Anonymous 
college
Controlling Irrational Fears After 9/11* We present this selection as an example of a fairly wellreasoned argumentative essay. There is more here than arguments—there’s some window dressing and you’ll probably find some slanters here and there as
asked by tweety18 
Science
Cells make tissue and tissue makes what?
asked by Samantha 
Misc./Project/Art
Hello, I need to come up with a very creative way to express who I am to a certain group of people. Unfortunately, I'm not very good at art, so I would have to come up with a new way. Are there any ideas you might have? Thank you very much for your help.
asked by Benjamin 
7th grade
when Muslims settled in Spain, they adopted the local religion and customs.
asked by Anonymous 
math
logarithms solve for x 5^(x1) = 9
asked by Anonymous 
Chemistry
Why do gases behave in a less ideal manner when in LOW TEMP. AND HIGH PRESSURE?
asked by Alison 
college
Explain the logical distinction between valid and true and deduction and induction
asked by Tim 
calc
Let C be the curve which is the intersection of the halfcone S1 = {(x,y,z)z=sqrt(x^2 + y^2} and the paraboloid S2 = {(x,y,z)2z=3x^2y^2}. Find C. a)Make a 3D sketch to show S1, S2, and C b) Show that at each point on C the normals to these two
asked by mark 
math
what does ^ mean?
asked by frances 
English: what's the formal term for...?
"Leave readers hanging"  how can I say this phrase in formal?
asked by Anonymous 
Science
how do you calculate the average velocity of a quarter dropped from a tower after 10 seconds?
asked by Layla 
MATH2
Given f(x) = 4x 2 + 2x  1, the simplified form of the difference quotient, [f(x+h)  f(x)]/h is, what?
asked by Casey 
Group
I just need small activities to bring to the class. Like matching questions and answers, small group discussion, what else?
asked by Group 
Healthcare
Can healthcare professionals who provide mental health care integrated with other systems of care?
asked by Nikia walker 
history 5
What was the predominant view concerning the relation between humans and the divine?
asked by brit 
math 116
suppose you want to add a sprinkler system, and the location of one section of the sprinkler line can be described by the equation y =  1/2x  4 complete the following table: x y ? 1 2 ? ? 4 2 ? 8 ? my answers: x y 6 1 2 3 12 4 i still get 12 for x
asked by Carmen 
Health
Is it not good for health to eat soup all the time?
asked by John 
college  physics
was wondering if someone can help me out. Question: a jet has a length of 59.7 meters. The runway on which the plane lands intersects another runway. The width of the intersection is 25m. the plane decelerates through the intersection at a rate of 5.70
asked by ksunhsine 
World History
How are the political systems of the Persian Empire and Greece alike?
asked by Martin 
governmnet
does anyone know what the ap exam for gov and pol is like?
asked by Kristin 
History
Is there extra colthing in winter for a roman solider?
asked by Kenni 
science.. plz help
make a plan to reach sustainability on air pollution. can you help me please with soem ideas. thanks
asked by scooby9132002