Questions Asked on
April 10, 2010

  1. Chemistry

    Would the following structures be polar or nonpolar? (Not applicable if the structure is an ion. Pick "ionic" in that case). SO2 N2O N3−

    asked by Johannie
  2. physics

    Two charges separated by 1 meter exert a 1 N force on eachother. If the magnitude of each charge is doubled, the force on each charge is?

    asked by Jenny
  3. Calculus

    A fence is 1.5m high and is 1m from a wall. A ladder must start from the ground, touch the top of the fence, and rest somewhere on the wall. Calculate the minimun lenght of the ladder. I drew a diagram and i ended up with a right angle triangle. i made the

    asked by lala
  4. chemistry

    1) All of the following are oxidation-reduction reactions except (a) 2Al(s) + Fe2O3(s) ---> A12O3(s) + 2Fe(s) (b) (NH4)2Cr2O7(s) ---> Cr2O3(s) + N2(g) + H2O(1) (c) Cu(s) + 2H2SO4(aq) ---> CuSO4(aq) + SO2(g) + 2H2O(1) (d) Hg(NO3)2 + 4KI ---> K2HgI4(aq) + 2

    asked by write2khin
  5. 12th grade.physics

    three equal and similar charges each of 'q' units are placed at the corners of the square of side 'a' .find the electric field strength at the fourth corner?

    asked by nikita
  6. accounting

    Total vending machine sales were $2,300 for the month of May. What account are affected

    asked by Armetrice
  7. chemistry

    a 5.0 g sample of KBr at 25.0

    asked by Anonymous
  8. chemistry

    1) All of the following are oxidation-reduction reactions except (a) 2Al(s) + Fe2O3(s) ¨A12O3(s) + 2Fe(s) (b) (NH4)2Cr2O7(s) ¨ Cr2O3(s) + N2(g) + H2O(1) (c) Cu(s) + 2H2SO4(aq) ¨ CuSO4(aq) + SO2(g) + 2H2O(1) (d) Hg(NO3)2 + 4KI ¨ K2HgI4(aq) + 2

    asked by write2khin
  9. Chemistry

    Marble is almost pure CaCO3. Acid rain has a devastating effect on marble statuary left outdoors. Assume that the reaction which occurs as: CaCO3(s)+ H+(aq)->Ca2+(aq) + HCO3(aq) Neglecting all other competing, equilibria, Calculate: 1. K for the reaction

    asked by Judy
  10. help factoring this trinomial

    2x^2-10x+8

    asked by jerson
  11. Math 62

    solve x-2y=2 and 2x-4y=3 then graph each equation

    asked by Jeri
  12. math

    grace has 16 jellybeans in a bag. she has 8 red ones, 4 green ones and 4 blue ones. what is the minimum number of jellybeans she must take out of her bag to ensure she has one of each color?

    asked by herkell
  13. math 2

    if r=5z, then 15z=3y, then r= ?

    asked by karen
  14. art 101

    what are vanishing points used for?

    asked by rmz
  15. English

    What are some problems with online learning vs. traditional learning?

    asked by Mary
  16. English

    If online learning has become so popular, how would a traditional teacher make their teaching more engaging so that students do not end up dropping out of schools?

    asked by Mary
  17. Chemistry 2 Questions

    two different questions: (1): give an example of the formation of an ionic compound from its elements. (2): why is the presence of a dipole moment in the water molecue so imporant? What are some properties of water that are determined by its polarity?

    asked by Amy
  18. Chemistry

    What's the balanced chemical equation of cleaning up oil, whether it be a spill, pipe etc.

    asked by Juggy
  19. CRT 205

    Assignment: Argument Evaluation · Read the article “Controlling Irrational Fears After 9/11” on pp. 456–458 of Appendix 1. · Identify at least two arguments in the article. Outline the premises and conclusions of each argument you find. Then,

    asked by monique
  20. Algebra1

    a company sells brass and steel machine parts. One shipment contain 3 brass and 10 steel parts and cost 48.00. A second shipment contain 7 brass and 4 steel parts and cost 54.00. Find the cost of each type of machine part. How much would a shipment

    asked by jj
  21. Biology

    What are the resulting genotypes of angiosperm's double fertilization?

    asked by Mary
  22. calculus

    what is the differential of ln (x)sqr?

    asked by Jim
  23. world history

    Who was the George Washington of South America?

    asked by mat
  24. Chemistry

    why shold you heat the evaporating dish containing the contents to fume hood. Why should the content be heated in the fume hood.

    asked by Sarah
  25. Itroductory Physical Science

    Spherical lead shot are poured into a square tray, 10 centimeters on a side, until they completely cover the bottom. The shot are poured from the tray into a graduated cylinder, which they fill to the 20-cm3 mark. What is the diameter of a single shot? How

    asked by Sara
  26. Physics

    the displacement of an object of 1 kg mass as a function of time t in x-y plane is given by x = 20t + 30t^2 and y = 25 - 40t in the units of meters -the units of x and y are in meters and t is in seconds -the force acting on the object is -and then there's

    asked by Allomabian
  27. English

    Thank you very much for your corrections. These are the very last sentences of the day.I need to rephrase a few sentences, too. Thank you very much in advance. 1.Can you say “the aristocracy grew in importance/lost importance”? 2.First the serpent

    asked by Franco
  28. Physics

    the displacement of an object of 1 kg mass as a function of time t in x-y plane is given by x = 20t + 30t^2 and y = 25 - 40t in the units of meters -the units of x and y are in meters and t is in seconds -the force acting on the object is -and then there's

    asked by Allomabian
  29. Physics

    :o Nevermind. Got it, thanks.

    asked by Allomabian
  30. physics

    A satellite moves in a circular orbit around Earth at a speed of 4390 m/s (a) Determine the satellite's altitude above the surface of Earth.(meters) (b) Determine the period of the satellite's orbit. (hours) I used the equation M(sattelite)V^2/r =

    asked by Kelsey
  31. AED

    What do you think are the greatest strengths and weaknesses of the current special educational system in America??

    asked by GGIFT
  32. socials

    With a partner, do some research on James I. Write a character sketch of James, What directions would you give to an actor asked to portray James I in a film?

    asked by adam
  33. socials

    Prepare a defiance for the proposition that the Divine right of kings is necessary to good government.

    asked by adam
  34. business

    How can lean manufacturing and near-sourcing help a company gain a competitive edge and prepare for the future?

    asked by Tanza
  35. socials

    Explain the difference between a king ruling with absolute power and one ruling within parliamentary restraints

    asked by adam
  36. chemistry

    explain how you would convert from number of atoms of a specific element to its mass

    asked by veronika
  37. scoials

    Do you think the civil war was a religious war, a political war, or both? Write two short notes to the king. In the first, explain why, as a puritan, you think civil war is probable for religious reasons. In the second, explain why civil war is likely for

    asked by adam
  38. Business and Technology

    How did U.S. manufacturers become vulnerable to offshore outsourcing? Give examples to support your answers.

    asked by Denise
  39. Chemistry

    What is the calculated value of the partial pressure (atm) of O2 in acid mine water of pH 2.500, in which [Fe3+] = [Fe2+]?

    asked by Laura
  40. Annuity!

    When Raisel's son was born, she put $7,500 in an investment that earns 5.25% compounded quarterly. This investment will mature when her son turns 18 and will go straight into an annuity at 7.25% compounded and paying out monthly at the end of the period.

    asked by Thara!
  41. Math

    I was thinking that I have to multiply but that doesn't make sense. However, I am terrible at story problems. A child's dose of medicine is 1/6 of a pre-measured dose cup. If the bottle of a medicine is the size of 9 doses, how many children's doses are

    asked by Bart
  42. chemistry

    How much heat is required to raise the temperature of 20.0g of H2O from 18.0 Celcius to 28.0 Celcius?

    asked by Abbie
  43. Math probability

    A bag contains 13 marbles of which 10 are red. A marble is selected at random and replaced. A second marble is then selected at random. What is the probability that both marbles are red?

    asked by nicole
  44. Math! plz help!

    When Cody's son was born, he put $4,500 in an investment that earns 7% compounded semi-annually. This investment will mature when his son turns 18 and will go straight into an annuity at 4.75% compounded and paying out quarterly at the end of the period.

    asked by Thara!
  45. Math

    A 6-pack of 4oz containers of yogaurt costs 2.99. what is the unit price in cents per ounce? Round to the nearest hundredths of a cent. First I would take 6 x 4 = 24 oz. Then I would divide 2.99/24 and get an answer of .1245833. Would my answer be 12

    asked by Bart
  46. physics(I'm taking a different way to solve)

    In the 1968 Olympic Games, University of Oregon jumper !@#$%^& Fosbury introduced a new technique of high jumping called the "Fosbury flop." It contributed to raising the world record by about 30 cm and is presently used by nearly every world-class jumper.

    asked by phys
  47. Physics

    The boiling point of the helium at i atm is 4.2 k, what is the volume occupied by the helium gas due to evaporation of 30 g of liquid at 1 atm pressure and a temperature of 5.2 k. Answer in L

    asked by John
  48. accounting

    create a balance sheet for this company from May 1 to August 31.Deposit$1000,$600 loan,August 31-balance of checkbook=$690,$400 supplies,Owe employees$1900.00+$200more,$600 for 6 month lease in advance,$300 repair bill,$300 trailor for equipment,$460

    asked by Maya
  49. PHYSICS Gr.11

    i am completely confued :( what are balanced and unbalanced forces? How can u tell by looking at a free body diagram and/or a problem? thanks

    asked by NINI
  50. English 12

    In my essay: How do I distinguish my ideas from paraphrasing (with appropriate citation at end of paraphrase)so that the entire paragraph does not look like a paraphrase?

    asked by Anonymous
  51. History

    What impact did Martin Luther and John Calvin have upon the perceptions and events of the Old World?

    asked by Monique
  52. trig

    find the value of cosec(-120 degrees)

    asked by amira
  53. math help plz!

    When Cody's son was born, he put $4,500 in an investment that earns 7% compounded semi-annually. This investment will mature when his son turns 18 and will go straight into an annuity at 4.75% compounded and paying out quarterly at the end of the period.

    asked by Thara!
  54. English

    Let's write down what you can do with the computer. 1. I use the computer to chat with netizens in chatrooms. 2. I use the computer to do paper work. 3. I use the computer to make documents with the word processor, Excel. 4. I use the computer to surf the

    asked by rfvv
  55. chemistry

    If a cube with edges of 1.000 cm weighs 25.68 g, what would the mass of a cube of the same material with sides 2.54 cm in length be?

    asked by kristi
  56. chemistry

    If a cube with edges of 1.000 cm weighs 25.68 g, what would the mass of a cube of the same material with sides 2.54 cm in length be?

    asked by kristi
  57. college

    3^5x + 13 = 1/9

    asked by jackie
  58. math

    NO CLUE how TO DO THIS PROBLEM EXPLANATION AND ANSWERS? WE RECENTLY LEARNED TO DO Y=km^x+b IF THAT HELPS! You are a mathematician for a major movie company. You are figuring projected sales for their newest movie, which is currently being filmed. You find

    asked by jade.
  59. Science

    There are some sections on Charles Darwin that I need help with for an assignment: -employment -major influence in life -activities/hobbies please help!

    asked by Briana
  60. math problem

    2^2x-1 = 32^x-2 2/x - 1/2x= 1/2 (2 over x minus 1 over 2x equals 1 over 2) 3/x + 8/x-5= 1 (3 over x plus 8 over x minus 5 equals 1)

    asked by Karin
  61. English

    Thank you very much for your last corrections. Can you please check the following sentences I wrote on the Canterbury tales, please?

    asked by Franco
  62. science,

    why look for black precipitate in the butt instead of on the surface of an h2s test?

    asked by hana
  63. Math

    proper subset of set x {3, 7, 11, 21, 39, 43, 567},

    asked by Mariuch
  64. algebra

    12-5x+7x

    asked by Iisha
  65. chmeistry

    50 ml of 0.1 M NaCl is mixed with 50 ml of 0.2 M AgNO3 predict whethera ppt of AgCl is formed or not

    asked by Anonymous
  66. math plz help

    ok so i have this math problem and it says to list the recipricol and i don't know what a recipricol can you tell me what it is?

    asked by nicole
  67. math!

    When Raisel's son was born, she put $7,500 in an investment that earns 5.25% compounded quarterly. This investment will mature when her son turns 18 and will go straight into an annuity at 7.25% compounded and paying out monthly at the end of the period.

    asked by Thara!
  68. college math

    Solve for x: √(2X+8)-4=2

    asked by CANE
  69. college math

    Solve for x: √(2X+8)-4=2

    asked by CANE
  70. college math

    Solve for x: √(2X+8)-4=2

    asked by CANE
  71. Biology

    Need help answering these questions-- How can genetic engineering be applied to everyday life? How can genetic altering benefit the society of today and future societies? What areas of life could this manipulation of genes cause? Thanks -MC

    asked by mysterychicken
  72. English

    I had problems in sending you my sentences on the Canterbury Tales. Can you please check them and let me know if the word choice is correct? Thank you very much in advance. 1)The tales are structured as a series of interlinked stories, told by a group of

    asked by Franco
  73. Calculus

    The hypotenuse od a right triangle is 12cm in lenht. Calculate the measures of the unknown angle in the triangle that will maximize its perimeter? I got the formula P= 12(1 + sin0 + cos0) and A= 12sin0cos0, but i don't know what to do next.

    asked by Adeola
  74. accounting

    A guest become ill and was unable to stay the entire week. A refund was issued in the amount of $1,000. What account was affected?

    asked by Armetrice
  75. Chemistry

    In a first order decomposition reaction, 50% of a compound decomposes in 10.5 min. What is the rate constant of the reaction? How long does it take for 75% of the compound to decompose? My professor did this problem in class: k = .693 / 10.5 mins = .066

    asked by biggie
  76. Chemistry

    I need help finding reactions beneficial to society. Here's the assignment quoted. "Your assignment is to research two different chemical reactions that are used to address social/environmental needs or problems. These reactions must clearly be attempting

    asked by Crazy
  77. Chemistry

    I need help finding reactions beneficial to society. Here's the assignment quoted. "Your assignment is to research two different chemical reactions that are used to address social/environmental needs or problems. These reactions must clearly be attempting

    asked by Crazy
  78. math

    austin invests 4500 with a bank at 5 1/4%simple interest. how much does he earn after a year. would the answer be 4500*.0525*1=236.25

    asked by jennifer
  79. science

    When you put the egg into the sock it helps lessen the bounce as it falling to the ground, but it will give air in the space .It also is an extra layer of protection for the egg. It’s the elevator effect. The sock can take up the shock of the fall. When

    asked by Anonymous
  80. accounting

    Your general manager called you into his office to discuss an ongoing problem. He explains that in the past, whenever he wanted to know how the projected income statement might change if sales volume changes, it would take weeks to have the accounting

    asked by Brenda
  81. HCA 210

    how would you ensure the mentally ill are placed into the appropriate care facility

    asked by Tia
  82. Biology

    What are the resulting genotypes of angiosperm's double fertilization?

    asked by Mary
  83. math(advanced algebra&trigonometry)

    The Vietnam Veterans Memorial in Washington, D.C., is made up of two walls, each 246.75 feet long, that meet at an angle of 125.2°. Find, to the nearest foot, the distance between the ends of the walls that do not meet.

    asked by Rony
  84. Finance

    If I invest £25,000 a year each year for 16 years and get a 5% return what will my total capital be ?

    asked by Stephen
  85. health disease

    What measures for disease prevention that were used historically should be used today? Why do you think some were discarded as preventive measures?

    asked by brenda smith
  86. Finance

    You will be paying $11,000 a year in tuition expenses at the end of the next two years. Bonds currently yield 11%. What maturity zero-coupon bond would immunize your obligation? I found the duration, but am having trouble finding the face value. Duration:

    asked by Danielle
  87. English

    Thank you for correcting my last sentences. I forgot to include a few more on the same subject. 1) Chaucer probably began writing the Canterbury Tales in about 1387 but he never completed it. 2)It was a huge project which would have included 120 tales if

    asked by Franco
  88. English

    Need help one more time :) I am teaching English as a foreign language(8th graders) I have a large text (A4 page) about Einstein.This text is divided into 7 paragraphs(Each paragraph deals with another aspect of Einstein's life - his childhood, life in

    asked by refy
  89. city college

    discuss the cultural versus evolutionary explanations for gender differences in aggressiveness.

    asked by allison
  90. History

    I have a history worksheet asking who administrated the German quadrants post WWII (It's looking for one word, not all of the countries). Was it the United Nations who administrated the quadrants??

    asked by Adeline
  91. math 3

    If Lynn can type a page in p minutes, what piece of the page can she do in 5 minutes?

    asked by peter
  92. English

    What does it mean to be civilized?

    asked by Taylor
  93. economics

    You are planning to estimate a short-run production function for your firm, and you have collected the following data on labor usage and output: Labor Usage: 3 7 9 11 17 17 20 24 26 28 30 Output: 1 2 3 5 8 10 15 18 22 21 23 1) does a cubic equation appear

    asked by Anonymous
  94. algebra

    Two cyclists start biking from a trail's start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. How much time will pass before the second cyclist catches up with

    asked by vera
  95. English

    What does to mean to be civilized?

    asked by Taylor
  96. English

    What are some examples of being civilized?

    asked by Taylor
  97. European History

    What is the common theme between Modern Totalitarianism, Stalin's Collectivization, and the Kulaks?

    asked by Kat
  98. algerbra 2

    what are the other roots of 3x^4-12x^3+41x-8x+26 that include 2-3i

    asked by kaitlyn
  99. investing

    (Dividend discount Model) Assume RHM is expected to pay a total cash dividend of $56.60 next year and its dividends are expected to grow at a rate of 6% per year forever. Assuming annual dividend payments, what is the current market value of a share of RHM

    asked by Faye
  100. finance

    The need for an increase or decrease in short-term borrowing can be predicted by?

    asked by mike
  101. History

    Do you think America's policy of containment was more successful in Europe or Asia? (I said Europe because the war efforts in Asia--Vietnam and Korea failed) but what do would you consider to be correct?

    asked by Adeline
  102. human services

    What are some time when client intervention in a timely matter important.

    asked by Nicholl State University
  103. biology

    what would the genotype and phenotype ratios be for a mother who carry's hemophilia and a father who is normals child?

    asked by edna
  104. Art

    I'm trying to find out what the differences and similarities are between: Impressionism Neoclassicism and Abstract Expressionism Examples of these arts are: The Emperor Napoleon in His Study at the Tuileries by Jacques Louis David (Impressionism) The

    asked by Leah