Questions Asked on
April 28, 2008

Chemstry
I just copied this because i have a couple more questions on this part.... Sulfuric acid/ Lead Battery: the electrodes for the battery are composed of Pb(s), PbO2, and/or PbSO4. What are the half reaction occuring at each electrode? include electrolysis
asked by Sara 
chem
1. under what circumstances is the molecular geometry around a single central atom the same as the electron group geometry around the central atom? 2.If all of the electron groups around a single central atom are bonding, and the same outer atom is bonded
asked by natash 
algebra
a car rents for $35 per day plus .22 per mile. You are on a daily budget of $90. what mileage will allow you to stay within your budget? Would the correct answer be 1.6?
asked by C 
Physics
A laser used to weld detached retinas emits light with a wavelength of 652 nm in pulses that are 20 ms in duration. THe average power expended during each pulse is .600 W. (a) How much energy is in each pulse, in joules and electron volts? (b) What is the
asked by J 
Chem (Help!)
I really need help answering these questions. A sample of CO2 gas with a mass of 0.30 g is placed in a 250 mL container at 400 K. What is the pressure in atmospheres exerted by this gas? Before you can put the numbers into an equation and solve for the
asked by Lisa 
English
Help me unscrable these letters to make a word.... C,U,P,A,N
asked by Jessica Trayah 
physics
A 85.0 kg person steps into a car of mass 2500.0 kg, causing it to sink 2.5 cm. Assuming no damping, with what frequency will the car and passenger vibrate on the springs?
asked by help? 
Physics
In a popular amusement park ride, a cylinder of radius 2.19 meters is set in rotation at an angular speed of 5.09 rad/s. The floor then drops away, leaving the riders suspended against the wall in a vertical position. What minimum coefficient of friction
asked by Kendra 
math
If a Ferris wheel takes 45 seconds to make a complete rotation, how many rotations will it complete in 3 hours?
asked by Cherie 
Social Studies
What were the impacts of China's Cultural Revolution?
asked by Molly 
latincan u help me translate these sentences?
1. propinquus meus plus cupidinis laudis i am demonstraverat, itaque reliquos virtute superavit. 2. utrum trans amnem a latis campis sub silvam ubi plus umbrae gratae erit an circum agros in oppidum ad summam arcem ubi semper multitudo feminarum est cras
asked by Lisa 
physics
You are 1.7m tall and your eyes are 8cm from the top of your head. How tall must a vertical plane mirror be to see your entire length? Also how far from the ground is the top of the mirror?
asked by shan 
english please revise
In this study I will argue that prolonged exposure of social oppression and subjugation is the basis is for the African American women limited participation in society’s political system. I will support my argument by providing a detailed analysis of
asked by Christi 
economics
Unemployment rate is unacceptably high. Is this positive economics, normative economics, or art of economics and why
asked by nathan 
"Brave New World"
I am writing an essay after reading the first 3 chapters of "Brave New World" about how genetic engineering produced the society. What are the motives behind genetic engineering according to Huxley? Has genetic engineering "Improved" lives of the peopel in
asked by Christian 
Science
Two students were testing the amount of fertilizer that would best promote the growth of strawberries in a garden. Which of the following could be an unavoidable source of experimental error? A. length of the study B. variation in the strawberry plants C.
asked by Sydney 
Physical Science
Pour vinegar onto beach sand in the Carribian and the results is a lot of froth and bubbles. Pour vinegar onto beach sand from California and nothing happens. Wht?
asked by Rachel 
English Grammar
Mother's Day is the second Sunday in May in America. Americans celebrate Father's Day, too. It's the third Sunday in June. In Korea, we honor our mother and father on the same day. It is Parents' Day. What day is it this year? 
asked by John 
english/l.a
Can someone give me some persuasuve essay topics? Persuasive essay a essay that persuades someone into thinking your opinion.
asked by Smart Kid 
chem
A gas has pressure of 4.62 atm when its volume is 2.33 L if the temperature remains constant, what will the pressure be when the volume is changed to 1.03 L? express the final pressure in torrs
asked by jerson 
English Ms. Sue
Identify the thesis statement in the article AIDS in Africa: Dying by the numbers. What strategies does the author use to formulate his argument? What makes the argument so compelling? Answer: Thesis: The pathetic and alarming need for education of
asked by rose revision 
Physics
An apartment has a living room whose dimensions are 2.5 m 4.8 m 5.9 m. Assume that the air in the room is composed of 79% nitrogen (N2) and 21% oxygen (O2). At a temperature of 27°C and a pressure of 1.01 105 Pa, what is the mass (in grams) of the air?
asked by Tasha 
Geometry
What is a rigid transformation?
asked by Kristi 
English Grammar
ex) How nice of you to say so! Whatis the part of speech of 'so' in the sentence? Is is an adverb or a pronoun?
asked by John 
English
6a. I lay my book on the table, but now I cannot find it. 6b. I laid my book on the table, but now I cannot find it. I chose B. could you please explain?
asked by Phil 
algebra
I am trying to figure out how to graph 3y9=3x What would the intercepts be?
asked by C 
Calculus To Reiney
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/x^4 find f'(x)____ what i got was (4x^2+7x12)/x^8 2. The
asked by John 
math
At what times between 6 o’clock and 7 o’clock will the hands on a clock be at a right angle?
asked by laura 
English
18a. My brother knows more about technology than me. 18b. My brother knows more about technology than I. my answer is B. please explain answer
asked by Tami 
English: final revision  Ms. Sue
Thesis: The pathetic and alarming need for education of HIV/AIDS in Africa is overwhelming and the great need is to protect and educate people to reduce the disease. The author uses his wisdom to research statistics that are so compelling; the world has to
asked by rose revision 
physics(Antennas)
With regards to straight antennas and coiled antennas. Which one is better/more efficient at receiving, and why? Which one is better/more efficient at broadcasting, and why?
asked by Sandhya 
Physics
A 75 W light source consumes 75 W of electric power. Typically only about 5% of this energy is emitted as visible light of wavelength 600 nm. (a) Calculate the frequency of the emitted visible light. (b) How many photons per second of visible light does
asked by J 
trig
Find two standard position primary angles in radians by solving for the unknown. "Primary angles" are those angles which exist between 0 and 2pi. As usual, use exact values in your calculations. cosx  2cos^2x = 0
asked by Manny 
english
What are other ways in which you can make use of the wealth of Webbased information and still guard against plagiarism?
asked by Jaz 
chem lab
ok I'm having trouble with graphing this chemistry lab. It's on atomic emission spectra. In this experiment we observed the line spectrum of first helium, and here is the data: color: distance: wavelenght: violet 20.35cm light blue 21.70cm green 23.08cm
asked by natash 
Chemistry
The capacity of a large irregularly shaped vessel cannot be computed from geometric data. As a result, it is decided that the volume be established from analytical data. The vessel is filled to its capacity mark with calciumfree water. A known small
asked by Gabby 
algebra
Please help me with this from a base elevation of 9500 ft., a mountain rises to a summit elevation of 14318 ft. over a horizontal distance of 15847 ft. would the grade of the peak be 3.3%
asked by C 
math
if h is an antiderivative of g(x) = x^3 / (1 + x^5) and h(1) = 2, then h(3) = a. 4.407 b. 2.555 c. 1.852 d. 0.555 e. 0.703
asked by billystar 
science
another name for the gas form of water, water _____ ? 6 letters
asked by ty 
French
Please look over my granddaughter's application letter to Paris Disney. Thank you! Bonjour Mesdames et Messieurs, Je m’appelle Kathryn ___ et je travaille au Walt Disney World Resort en Floride aux EtatsUnis. En ce moment là, je travaille avec le
asked by Ms. Sue 
trig
Find two standard position primary angles in radians by solving for the unknown. "Primary angles" are those angles which exist between 0 and 2pi. As usual, use exact values in your calculations. cotx + 1 = 0
asked by Manny 
American History
What were the main causes of the American Civil War? I have  Slavery States rights v.s. federal law Economic issues (tariffs) Westward expansion Election of Abraham Lincoln Can you help me elaborate some of these points? I have to pick three main ones to
asked by Lucy 
English Expression
How do you pronounce the l sound? Do you know how to say the l sound? Put the front part of your tongue on the gum in your mouth, and let the air pass on both sides of your tongue, saying l. What about the r sound? Can you speak the r sound? What is the
asked by John 
....!!!
can anyone help me i have been googling everywhere and can't find what i need websites for poems by established authors
asked by ... 
English Expression
She goes to bed at around eleven thirty. She goes to bed around eleven thirty. She goes to bed at about eleven thirty. She goes to bed about eleven thirty.  Are the expressions all grammatical? Would you check the expressions above?
asked by John 
Physical Science
Why don't oil and water mix?
asked by Rachel 
physics
an image in a convex mirror is 12cm tall and 30cm from the mirror.IF the focal length is 50cm, where is the object and how tall. i got 7.5cm for the object height but a convex mirror always gives a reduced image?
asked by shan 
English Grammar
A: How do you like the present, Mom? B: Oh, it is great. It's so kind of you.  In the short dialogue above, what is the full form of 'It's so kind of you.'? It is so kind of you to give me the present.  Is this the full form for that? What
asked by John 
Math
Please double check my answer. On three consecutive passes, a football team gains 7 yards, loses 22 yards, and gains 49 yards. What number represents the total net yardage? My answer: The total net yardage is 34 yards.
asked by Shawna 
English Expression
Let me tell you my day. Let me tell you my daily schedule. Let me tell you my daily activities. If I want to tell others what I do from morning tll night, which expression should I use among the three? Do you have better expressions?
asked by John 
Spanish
I need these words translated from Spanish to English but they aren't in my spanish dictionary and when i google the words I get some odd translations that I'm sure aren't accurate. Compraba, compro, esta comprando, se comio, quiere comerse.
asked by Leslie 
Chemistry
Please check to see if i did it right.. if the reduction potential for Cu^2+ + 2e> Cu is 0.00V. Then the remaining reduction potentials for the voltages between Cu[cathode]/Zn[anode] is like??? Ecell=1.043v My answers:Zn>Zn2+ 2e voltage = 1.043V
asked by Sara 
please revise
It is ordinarily accepted among nations that territorial jurisdiction is based on a crime that is committed within the territory of the sovereign state. However, sometimes states also exercise jurisdiction because the crime was committed abroad by one of
asked by christy 
Psychology
Are the stories of"The Three Faces of Eve" and "Sybil" positive visions of multiplicity? I have to write this in APA style and I'm not sure how. Please help.
asked by Amy 
algebra
from a base elevation of 9500 ft., a mountain rises to a summit elevation of 14318 ft. over a horizontal distance of 15847 ft. I cannot figure out the grade of the peak. Can someone please help me?
asked by C 
accounting
Problem: For the following four cases, use the accounting equation to compute the missing quantity. Note: I was given four cases but apparently I am missing something. For example the first case states: $20,000 assets, $8,000 liabilities, and $3,500 in
asked by Tamra 
algebra
from a base elevation of 9500 ft., a mountain rises to a summit elevation of 14318 ft. over a horizontal distance of 15847 ft. would the grade of the peak be 3.3%
asked by C 
science
What are the three main ways in which organisms interact?
asked by carmelita 
marketing
What special concerns would you have in designing a print ad for a product used by senior citezens?
asked by tana 
algebra
what is the y and x intercept of 16x+y=28?
asked by C 
Science
To neutralize a pithball electroscope all you have to do is to hold it for a very short time. Explain what happens to discharge the pith ball if it is a)negatively charged b)positively charged
asked by anum 
Chemistry
Two beakers were used in an experiment each with 100g of water at 30 degrees C. To the first beaker, 90g of NaNO3 was added. To the second beaker, 90g of KNO3 was added. (a)Which beaker had the salt precipitate out (settle to the bottom) and how much? (b)
asked by Toni Jones 
language arts
Alphabetically, which comes first he's or here's?
asked by Kyle 
SCI
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
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me
asked by meika 
Math
Is this correct? Amy paid $89.18 for a pair of running shoes during a 15% off sale. What was the regular price? My answer is $102.56
asked by Shawna 
Math
Is this correct? Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 80 miles per hour. Train A passes a station at 3:25pm. If train B passes the same station at
asked by Shawna 
algebraII
3b2/b+1=4b+2/b1 please help me I'm stuck
asked by brit 
math
hi my name is hedi and i am in serious need with help with some math problems dealing with polynomials can some one please help me? Determine whether each expression is a polynomial. If it is a polynomial, state the degree of the polynomial. (This is the
asked by hedi 
Algebra 2
Describe two laws of exponents and provide an example illustrating each law. Explain how to simplify your expression. How do the laws work with rational exponents? Provide a third expression to simplify that includes rational (fractional) exponents
asked by Help Please 
physics
a concave mirror of diameter 40m is used with a 6cm tall object placed 20 cm from it. Where is the image? Can you check my solution Radius(R)=20cm Distance object(do)=20cm (2/R)=(1/do)+(1/di) (1/di)=(2/R)(1/do) why do they give you the object height i
asked by shan 
algebra
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me
asked by meika 
please revise my intro
Hello, I am writing a paper for international law course can someone please revise my intro? thank you. It is ordinarily accepted among all nations that territorial jurisdiction is based on the fact that a crime is committed within their territory.
asked by christy 
algebra
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me
asked by meika 
algebra
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me
asked by meika 
home economics
Imagine that the efficient provision of telephone calls in a mediumsized city involves an initial investment of $100 million financed by borrowing at 6 percent and variable cost of 5 cents a phone call. The phone company's annual fixed cost would be $6.0
asked by Eric 
Physics
An ideal gas at 6.0°C and a pressure of 1.92 105 Pa occupies a volume of 2.10 m3. (a) How many moles of gas are present? moles (b) If the volume is raised to 4.60 m3 and the temperature raised to 30.5°C, what will be the pressure of the gas? Pa I was
asked by Tasha 
English
1a. Did you know a famous animalrights activist has criticized horseracing because of the dangers involved? 1b. Did you know a famous animalrights activist have criticized horseracing because of the dangers involved? my answer is A. could you please
asked by Katie 
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? I have no idea can anyone help?
asked by Tim 
science
Powerpoint presentation on energy resource plan.
asked by Anonymous 
math
how do you convert a fraction to A decimal to a percent
asked by Anonymous 
algebra
y=1/2x I determined that the ordered pairs tha could be graphed are 0,2 and 3,0 I'm not sure if these are correct and I am unable to determine the y intercept. Is it 4?
asked by C 
Physical Science
Many dry cereals are fortified with iron, how would you prove that?
asked by Rachel 
AED
what needs to happen to create a balance in school funding across regions?
asked by Dawn 
Math
Please help! Jack has a mixed fruit pie. There is a variety of fruits (17,3,28,4,89,67,2), how many times will Jack have to stick in his thumb before he is sure to pull out two pieces of the same kind of fruit?
asked by Caleb 
English Debating
We have a debate about "That if we buy New Zealand made, we've got it made". we are negating this topic but don't know what to talk about. please help !! thanks
asked by Tania 
English Expression
It is general to send the mind of gratitude by exchanging presents together with cards in America.  Is the sentence above grammatical? Would you correct any incorrect expressions?
asked by John 
math
what is liquid quanity
asked by alexis 
English
3a. Vitamins that are sold in a healthfood store are not regulated by the Food and Drug Administration. 3b. Vitamins that are sold in a healthfood store is not regulated by the Food and Drug Administration. my answer is A. Please explain
asked by Mel 
English
Please can someone help me with this poem. The Love Song O J Afred Prufrock
asked by Janice George 
algebra
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me
asked by meika 
algebra
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me
asked by meika 
algebra
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me
asked by meika 
algebra
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me
asked by meika 
physics
Does an object need a net force acing on it in order to move at constant velocity?
asked by Anonymous 
English Expression
Can you express how you love your parents in English? How can you express you love your parents in English?  Are both questions grammatical? Which one is a common expression?
asked by John 
Memorizing
I have to memorize a soliloquy from Romeo and Juliet this week. What are good techniques in order to perfectly memorize it?
asked by Cassidy 
social
!@#$%^&ally won the war of 1812????
asked by Slappy 
Science
Can you help me find the common name of Thermus aquaticus and how it reproduces and anything else?
asked by Emily 
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? Can anyone help me work this
asked by Tasha 
Physics
A runner weighs 560 N (about 130 lb), and 74% of this weight is water. (a) How many moles of water are in the runner's body? moles (b) How many water molecules (H2O) are there? molecules I was able to get part (a), but I'm not sure how to get part (b)
asked by Tasha 
physics
a concave mirror of diameter 40m is used with a 6cm tall object placed 20 cm from it. Where is the image? Can you check my solution Radius(R)=20cm Distance object(do)=20cm (2/R)=(1/do)+(1/di) (1/di)=(2/R)(1/do) why do they give you the object height i
asked by shan 
ict year 7
flow chart symbols purpose and example.one looks like a rectangle and one looks like a diamond .thanks
asked by carla 
algebra
When is the following a true statement ? (a+b) = a + b if a and b are nonnegative.
asked by laura 
Physics
A spring of k=11 N/m has a block of mass 4 kg attached to it on a frictionless table. If the block is pulled a distance 0.15 m to the right and released from rest, how long will it take the block to return to its equilibrium position?
asked by Charlie 
math
How can I combine these 2 equations to give an equation for b which does not include m  b=da/m a=me^2
asked by sue 
algebra
When is the following a true statement? ã(a+b) = ãa + ãb if a and b are nonnegative.
asked by laura 
trig
Sketch the graph of one cycle of tan(x)(pi/2=1.5708) and give the requested information Domain: Range: Period(wavelength): Asymptotes:
asked by Manny 
Physical Science
How might warmer oceans accelerate global warming?
asked by Rachel 
Accounting II
Does anyone know how to calculate cost of savings when calculating the net present value? The NPV was given and I have to backed into the other figures. The only thing about cost savings provided is "25% reduction in direct material. The DM cost listed is
asked by Tom 
chem lab
I'm doing a lab on helium and hydrogen emission spectra. so I got violet 20.35cm blue/green 21.70cm green 22.75 light green 23.08 yellow 27.70 red 31.70 faint red 33.95 and I also have the wavelenghts for helium spectra, its given. like for ex. violet is
asked by natash 
algebra
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me
asked by meika 
English Grammar
ex) Happy Mother's Day! Is the full form of "Happy Mother's day!" "I wish you a happy Mother's Day!"?
asked by John 
English
7a. I was interested in working on the presidential campaign if the opportunity still exists. 7b. I am interested in working on the presidential campaign if the opportunity still exists. my answer is B. I need a rationale for this answer.thanks
asked by Mel 
Social Studies   Mao and Communist China
Hello, I was wondering if anyone could assist me in finding sites that talk about these two questions. Please and thank you. (: 1. What were the impacts of the Tiananmen Square massacre? (The aftermath, results.) 2. How is the shift towards capitalism
asked by Eve 
French
Whats a ski du fond? thnx for anyone who can help =P
asked by ... 
history
Who are the medici family? plz help me im realy stuck!
asked by lauran 
Algebra
I'm lost. Please help me solve. Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 80 miles per hour. Train A passes a station at 3:25pm. If train B passes the same
asked by Shawna 
critical thinking
Given the premises, discuss whether the conclusion of each argument that follows is (a) true beyond a reasonable doubt, (b) probably true, or (c) possibly true or possibly false. You should expect disagreement on these items, but the closer your answers
asked by Anonymous 
chem
how do you determine the theoretical yield?
asked by Kayla 
math
p and L are related by the equation p=RA/L where all the other quantities in the equation are constant. How do I work out the gradient of a graph in which ñ is plotted against 1/L?
asked by sarah 
Physical Science
What happens to the pH of soda as it loses it's carbonation? Would it effect the taste? Why or why not?
asked by Rachel 
Physical Science
An acid and a bas react to form a salt which consists of positive and negetive ions. Which forms the positive ions the acid or the bas?Which forms the negetive ions?
asked by Rachel 
math
At what time between 6 o’clock and 7 o’clock will the hands on a clock be together?
asked by laura 
International Society
Does anyone know the terrorism threat in Australia? Thanks M
asked by Minerva 
French for Lin
Did you back up to your question about 3 pages ago about the subject (phares) and adjective agreement (cassés)? Mme
asked by SraJMcGin 
english
could you please show me an example of a speech that was written about time
asked by thandeka 
Physics
In a controlled chain reaction, for every three neutrons released by a uranium235 nucleus, one is absorbed into another nucleus. The number of neutrons absorbed by another nucleus decreases slightly. For every 30 released, only nine are absorbed. What
asked by Saul 
"Magic Mushrooms"
How are magic mushrooms made
asked by danielle 
english
what shows phillip prejudice?
asked by bruce 
Physics
The position of some object moving along the xaxis is observed to be x(t)=9cos(pi*t/3+pi/4) meters. Find the frequency.
asked by Charlie 
computers
Are there certain curricular areas in which technology is more useful than in others? Such as in a classroom
asked by Kell 
math
If z=2t^3 7t how do I calculate the gradient of a graph of z against t at t = 3?
asked by sarah 
science
what is an organism that feeds off of other living or dead organisms?
asked by kara 
algebra
2x+6y=60 in determinng the x and y intercept I came up with the order pair 0,10 Is this correct?
asked by C 
English Expression
What is the relation of the people who have a conversation with each other? What is the relationship of the people who have a conversation with each other?  Are both grammatical? Do I have to use 'relation' or 'relationship'?
asked by John 
chem
The total pressure in a flask containing air and ethanol at 257C is 800 mm Hg. If the pressure of the air in the flask is 762 mm Hg, the vapor pressure of ethanol is? I tried doing a relationship of P1 over t1 etc but i don't get the right answer.
asked by Anonymous 
algebra2
(3b2)/b+1=4(b+2/b1) please help
asked by brit 
Social Studies/Science
What were some technological advancements dueign the Great Depression?
asked by Cassie 
English
17a. Each of the applicants must submit his or her completed form to the interviewer. 17b. Each of the applicants must submit their completed forms to the interviewer. I chose A. is that right? please explain.
asked by Tami 
science
how does leucine help protein synthesis in cells
asked by chris