Questions Asked on
December 17, 2007

  1. Physics

    A child sits on one side of a teeter totter of length 7.60 m, a distance of 49.7 cm away from the end of the beam. The child has a mass of 21.6 kg. Her mother has a mass of 43.6 kg. How far away from her end does she have to sit in order for the teeter

    asked by Courtney
  2. physics

    A student librarian picks up a 2.2 kg book from the floor to a height of 1.15 m. He carries the book 8.0 m to the stacks and places the book on a shelf that is 0.35 m above the floor. How much work does he do on the book? how do i do this??

    asked by katie
  3. physics

    A student librarian picks up a 2.2 kg book from the floor to a height of 1.15 m. He carries the book 8.0 m to the stacks and places the book on a shelf that is 0.35 m above the floor. How much work does he do on the book?

    asked by katie
  4. CHEMISTRY

    1) hwhich steps in the life cycle of copper consume energy? for each step, can you explain the particular energy needs? 2) which life-cycle steps (such as the reduction of a mineral in an ore to produce platinum) require the use of other material? 3)how

    asked by LISAINLA
  5. Chemistry

    Equation to show how it ionizes in aqueous solutions: example: HCLO4 HCLO4 + H2O---> H3O+ + CLO4- KOH Ba(OH)2 CsOH NaOH

    asked by Monte'
  6. Physics

    Consider a spaceship located on the Earth-Moon center line (i.e. a line that intersects the centers of both bodies) such that, at that point, the tugs on the spaceship from each celestial body exactly cancel, leaving the craft literally weightless. Take

    asked by Lindsay
  7. Math

    consider a triangle with vertices (a,b), (c,d), (e,f), with the area of the triangle b/2 a = area of an equilateral triangle with side length b c = length of diagonal of a cube with side length b a/c = the positive asymptote of the conic equation

    asked by Paragon
  8. Algebra II

    If a bedroom set sells for $10,000 and a living room set sells for $18,000,determine the number of bedroom sets and living room sets that must be sold to maximize the amount collected. I'm not sure what I need to do to set this up.

    asked by Jon
  9. math

    which is the smallest unit of measurement? m, cs, km?

    asked by Andrew
  10. Algebra 2

    If a bedroom set sells for $10,000 and a living room set sells for $18,000,determine the number of bedroom sets and living room sets that must be sold to maximize the amount collected. I'm not sure what I need to do to set this up.

    asked by Jon
  11. Physics

    Two 2.160 kg crystal balls are 0.870 m apart in the vertical direction. Calculate the magnitude of the gravitational force they exert on a 8.80 g marble located 0.260 m horizontally out from the center of a line that intersects the centers of the balls.

    asked by Lindsay
  12. Math

    A man goes into a store and says, " If you give me as much money as I have with me now, I will spend $10.00 in your store." The proprietor agrees, and the man spends the money. He goes into a second store and again says, "If you give me as much money as I

    asked by Mary
  13. Physics

    A construction supervisor of mass M = 83.7 kg is standing on a board of mass m = 30.5 kg. The board is supported by two saw horses that are a distance of 4.50 m apart. If the man stands a distance x1 = 1.30 m away from saw horse 1 as shown, what is the

    asked by rory
  14. art

    Why is Rembrandt oftern referred to as the first "modern artist?"

    asked by Rose
  15. social studies

    1st Amendment; freedom of religion Why is this amendment important to America? What are 2 examples of how the amendment protects the citizens?

    asked by aj
  16. Career Search

    where can i find information in career field of mobile electronics?

    asked by Brian
  17. math

    Integrate: csc x dx

    asked by mathstudent
  18. Statistics

    Background: A machine cuts wood boards to a thickness of 25 millimeters with an accepter margin of error of +/-0.6 ml. (Assume process can be distributed by normal distribution.) The acceptable range of thicknesses for the boards is 24.4 ml to 25.6 ml,

    asked by Brandon
  19. science

    how does the process work to extract hydroelectric power

    asked by alyssa
  20. art

    Supermodel Tyra Banks uses Smooth & Soft bath gel; you should, too! Is this bandwagon? I think so.

    asked by Rose
  21. studying

    what are some good last minute studying tips?

    asked by sara
  22. math

    Karen and Kate lookedata collection of stones. Karen said the ratio 2:3 represented the stones. Kate said the ratio 2:5 represented the stones. They were both right. Explain Why

    asked by ian
  23. math

    Given: Polygon STUVW is similar to polygon XYZAB, XY= 32, YZ= 36, ST= 4c+ 2, TU= 5c+ 2 Find : ST and TU

    asked by anonymous
  24. science

    i do not understand this question and how to anseer it, can someone please help? htt p://i12. tinypic. com/6k8ytdd.jpg the question is in the link because it has a graph that goes along with it that I do not understand, just take the spaces out of the

    asked by kelly
  25. science

    how are faults classfied

    asked by amanda
  26. Math

    need help with Equations: I don't understand what 4x-2x+4=x+10 I don't have a clue how to solve and check it. please help me

    asked by Glenda
  27. English 12

    this question is based on the epic of gilgamesh. How important is Enkidu's role in the battle with Humbaba? please don't post links to sites..I checked everywhere already!

    asked by Sharon
  28. Language Arts

    In the Holocaust book were reading the Nazis were planning on killing all the Jews before the Russians liberated them. Is this true? If so how were they going to plan the kills?

    asked by Logan
  29. Algebra

    Why are polynomials important based on the history of factoring and applications of them?

    asked by Pls help!
  30. science

    i do not understand this question and how to anseer it, can someone please help? htt p://i12. tinypic. com/6k8ytdd.jpg

    asked by kelly
  31. algebra trying again

    Translate the following statement into an algebraic equaion. Let x represent the number. 6 times a number is 14 more than that number. I got 6x=x+14 Is this correct

    asked by Christi
  32. Math

    Please help! Suppose one girl saves $10 every week. Another girl already has $21 and saves $3 every week. Write and solve an equation to determine when the two girls will have the saved the same amount of money. So far I have these expression for each

    asked by Plse Help
  33. History

    AD 476 Fall of the Roman Empire in the West ends 800 years of Roman hegemony. The creation of moderen Europe begins. Is this event political, economic, religious, social, intellectual, artistic, or geographic and how is it important today? Thanks, Heather

    asked by Heather
  34. chemistry

    what are four uses of platinum? 2) for each use, what is an alternative material that could serve the same purpose? consider both conventional materials and possible new materials 3) what are some common metallic items that mighr be replaced by ceramic or

    asked by LISAINLA
  35. Social Studies

    what is the name of the medieval political and social system, based on agriculture?

    asked by Michelle
  36. Physics

    I still cannot solve this problem: Consider a spaceship located on the Earth-Moon center line (i.e. a line that intersects the centers of both bodies) such that, at that point, the tugs on the spaceship from each celestial body exactly cancel, leaving the

    asked by Lindsay
  37. Chemistry (materials / metals)

    Please help with 5 questions: 1) what metals are the alternatives to platinum? 2) what are the advantages/disadvantages of these alternatives? 3) what is the life cycle of platinum? 4) how are the materials in your platinum and processes? (be sure to

    asked by LISA AND MICHELLE IN LA
  38. WW2

    The evacuation of BEFs & France and Belgium forces from Dunkirk is know as Operation Dynamo. Was this name given after the operation or during the operation?

    asked by Gina
  39. Not understaning what I need to do

    I am writing a paper of the Society of The India people and one of the questions I need to answer is A clear differentiation between race and ethnicity in India? I am not sure I understand what I need to write Can any one give a better understanding what I

    asked by RAY
  40. Psychology

    I have to respond to this question in 200 words or more. What might happen when a boy plays with action figure dolls? How does this behavior fit into theories of development? I am studying Jean Piaget's theory of development so I am assuming I am supposed

    asked by Christian
  41. chemistry

    What is the main reason so many different molecules are made from carbon atoms?

    asked by Anonymous
  42. Calculus

    The slope of the tangent to the curve (y^3)x+(y^2)x^2=6 at (1.2) is??????????? Is the answer -1/2 or positive, or am i completely off?

    asked by Josh
  43. Algebra

    Translate the following statement into an algebraic equaion. Let x represent the number. 6 times a number is 14 more than that number. I got 6x=x+14 is that right?

    asked by Christi
  44. art

    Copley's expert rendering of _____ displayed a level of talent uncommon in 18th century America. Hair, Facial expressions, foliage, or cloth? I think it was foliage.

    asked by Rose
  45. technical writing

    how can i write a letter of autorization for a school cashier telling her that am authorizing my boyfriend to pick up my paycheck instead of me

    asked by lia82
  46. english

    What is AAABBB organization?

    asked by Tabby
  47. Science

    The middle layer of the earth, made of solid, hot rock, is the what?

    asked by Renee
  48. SCI 275

    distinguishes between renewable and nonrenewable energy. · provides at least three methods for conserving energy and helping the environment. · discusses how the government can help with conservation efforts. I need help PLease

    asked by dawn
  49. Math

    If Steven rock climbs every 5 days and bikes every 3 days. If he runs and swims today how many days will pass until he runs and swims again on the same day?

    asked by Debbie
  50. WWII

    Who were the Allied Powers during WWII?

    asked by Gina
  51. social studies

    what substance was used to stuff the nostrils of a mummy?

    asked by caleb
  52. ENGLISH 3

    discuss why the tittle The Crucible is an appropriate tittle for this play. Consider the roll of "Pressure" and its effects on the various charcters.

    asked by lynn
  53. pre algebra 2

    how do you make a guess and check table?

    asked by annonymous
  54. JOHN LOCKE QUOTES

    i need john locke quotes on secession please and thank you. :)

    asked by need help
  55. social studies

    what contributions didi the babylonians make to civilization?

    asked by zuleika
  56. Career

    Where can i find information in the business area of scheduling & dispatching?

    asked by Bryan
  57. Nautical/Stability/GM

    I have previously understood a ship's GM determined her role period. However I have just read that if weight on the centreline of the ship is moved laterally outwards to the sides of the ship this will slow the ships roll ie. increase its roll period. I

    asked by Mike
  58. Ethics

    Are human services or health care organizations expected to act in a more ethical manner than for-profit organizations?

    asked by Jess
  59. WW2

    Did any Canadians participate in the Battle of France?

    asked by Gina
  60. WWII

    If a soldier was to try to flee from a battle of do anything or that sort, what would their punishment be? (WWII)

    asked by Gina
  61. art

    Which artist was van Eyck's closest contemporary? Bosch, Van Der Weyden, Gruneweld, or Holbein? I think it was Gruneweld.

    asked by Rose
  62. george washington

    how many terms did george washington serve what did he do after he left office

    asked by tiffany jasper
  63. math

    wat is1/2 plus 1/3

    asked by jose
  64. WWII

    What was the airforce for the Candians called in WWII? Was it the RCA?

    asked by Gina
  65. Memorization

    How can i quickly memorize a passage from Julias Caesar? I have to speak it in front of class.

    asked by Amanda
  66. MATH

    What is a spcialcase

    asked by Anonymous
  67. math

    If i have a number line and the numbers i am to place on it are -2,-1,0,1,2,2.3,3,4,5,sqrt of 8,and sqrt of 36, what would the order be?

    asked by hayley golubski
  68. english

    What are "limiting words?"

    asked by Tabby
  69. WWII

    What term did they use when I soldier itentionally injured himself to be removed from battle? And were could I find names of hospitals in Britain where soldiers were sent?

    asked by Gina
  70. Math

    List the first eight prime numbers.

    asked by Matt
  71. chemistry

    1) what alternative metals can be considered for platinum? 2) what are the advantages/disadvantages of these alternative metals? 3) how are the materials in wire/electronics obtained and processed? ( include redox equations in mining/refining steps) 4)how

    asked by LISAINLA
  72. Math

    How do I identify coefficients, constant terms, and like terms of the expression?

    asked by Andy
  73. chemistry

    what properties of alloys make them an attractive option in the design of electronics? 2) what might modifying the surface of electronics be preferable? 3) what are benefits and drawbacks of using alloys versus using surface modification for electronics?

    asked by LISAINLA
  74. math

    1. 5m+6=-4

    asked by halo
  75. intergrated science1

    What are electrons circle atoms in regions called?

    asked by Tiffany
  76. Linguistcs

    When a person misspell a word in which part of linguistics he needs to work on syntax, morphology, phonology, or semantics?

    asked by Maria
  77. project management

    return the human resources to the organization

    asked by Anonymous
  78. US.GOVERNMENT

    i need info on General Butler of New Orleans during the civil war

    asked by need help
  79. math

    How do I calculate value of pi upto 200 decimal places ? Please email me the answer to my email address homework@live.in .

    asked by I want homework help