Questions Asked on
November 15, 2008

  1. chemistry

    Given that S is the central atom, draw a Lewis structure of OSF4 in which the formal charges of all atoms are zero

    asked by defferan
  2. Ms. Sue! (English)

    I have another question about "Shooting the Elephant" The question is : What does "shooting an elephant" gain from being written years after the events it recounts? Is one possibility that it gave Orwell time to reflect upon his experiences? Are there any

    asked by kayla
  3. organic chemistry

    A sample of 2-butanol has a specific rotation of -9.75 degrees. Determine the % ee (enantiomeric excess) and the molecular composition of this sample. The specific rotation of pure (+)-2-butanol is +13.0 degrees.

    asked by Jenn
  4. english-german

    hello! i need to give a thirty minutes lectore to children(age 11-12).My topic is travelling.What can i do?Do you have any exanples of any games i can make to make it interesting?They can also act and learn some vocabulary but mostly they need to do

    asked by bill
  5. Chemistry

    You have the alkane C7H17. What is the IUPAC name. I tried heptane and 4-ethyl-3-methylheptane, but it still says my answer is wrong. What would be the answer then.

    asked by George
  6. design

    In an effort to promote a better understanding of what design is and how to discuss it, your firm is having a weekly series of meetings. Within your first week, please find a design to include in your presentation that is different than the material you

    asked by sue
  7. math

    a ferris wheel has a radius of 8m and rotates every 12 hrs. THe bottom of the ferris wheel is 1m above the ground. draw a graph describing how a person's height above the ground varies with time. Find an qeation for your graph.

    asked by linda
  8. Chemistry

    You have the alkane C7H16. What is the IUPAC name. I tried heptane and 4-ethyl-3-methylheptane, but it still says my answer is wrong. What would be the answer then.

    asked by George
  9. trig

    Give exact answers Sin(11pi/8) so this is sin(pi/4+pi/3) sin(pi/4)*cos(pi/3)+cos(pi/3)*sin(pi/4) rad2/2*1/2+1/2*rad2/2 which gives me rad2+rad2 all over 4 ...i don't know y im getting it wrong

    asked by Natash
  10. Chemistry

    You have the alkane C6H17. What is the IUPAC name. I tried heptane and 4-ethyl-3-methylheptane, but it still says my answer is wrong. What would be the answer then.

    asked by George
  11. math

    For a class of 43 students fora certain exam, the mean grade is 67 and the standard deviation is 7. a) How many students should receive a C? (a c is between 74-79) b) How many students should receive a B? (a B is between a 80-89) c) what score is necessary

    asked by joe-c
  12. math

    Instant dinner comes in packages with weights that are normally distributed with a standard deviation of 0.3 oz. If 2.3 percent of the dinners weigh more than 13.5 oz, what is the mean weight?

    asked by missy
  13. chemistry

    a 506g piece of copper tubing is heated to 89.5C and placed in an insulated vessel containing 159g of water at 22.8C. Assuming no loss of water and a heat capacity for the vessel of 10.0J/K, what is the final temperature of the system (c of copper = 0.387

    asked by carl
  14. engineering

    using air pressure, a ball of 0.5kg is forced to move through the tube lying in the horizontal plane and having the shape of a logarithmic spiral. If the tangential force exerted on the ball due to the air is 6N, determine the rate of increase in the

    asked by sarah
  15. math

    The diameter of a pipe is normally distributed with a mean of 0.4 inches and a variance of 0.0004. What is the probability that the diameter of a randomly selected pipe will exceed 0.44 inches?

    asked by missy
  16. Physics

    Does using (Fcos(theta))d work for this problem or should cos be replaced with sin? A cheerleader lifts his 66.4 kg partner straight up off the ground a distance of 0.718 m before releasing her.If he does this 27 times, how much work has he done?

    asked by Johnathan
  17. science

    how do organisms help soils develop?

    asked by jazzy
  18. math

    Instant dinner comes in packages with weights that are normally distributed, with a standard deviation of 0.3 oz. If 2.3% of the dinners weigh more than 13.5 oz, what is the mean weight?

    asked by missy
  19. AP Chem

    Phosphorus pentachloride is a white solid that sublimes (vaporizes without melting) at about 100 degrees C. At higher temperatures, the PCl5 vapor decomposes to give phosphorus trichloride and chlorine. How could gas-density measurements help to establish

    asked by Anna
  20. calculus

    A rectangle is to be inscribed under the arch of the curve y=4cos(.5x) from x=-pi to x=pi. What are the dimensions of the rectanlge with the largest area and what is the largest area? please explain.

    asked by sylvia
  21. AP Chem

    Ammonium Chloride is a white solid. When heated to 325 degrees C, it gives a vapor that is a mixture of ammonia and hydrogen chloride. Suppose someone contends that the vapor consists of NH4Cl molecules rather than a mixture of NH3 and HCl. Could you

    asked by Anna
  22. essay

    I have a essay to write my instructor say because I chose education I an addressing a whole field from kindergarten to post graduate I need to now what type of education I chose English. I need to keep it narrow and stringent focus in order to help find

    asked by Lasoyna
  23. grammmar

    Fill inthe blanks with the correct tense of the verb in the bracket.1. Soni---us a secret.(tell).2. Did they--- the thief?(catch). 3. We have----them for twelve year.(know).

    asked by ra ny
  24. organic chemistry

    An optical rotation study gives a result of +140 degrees. Suggest a dilution experiment to test whether the result is indeed +140 degrees, not -220 degrees.

    asked by Jenn
  25. math

    The diameter of a pipe is normally distributed with a mean of 0.4 inches and a variance of 0.0004. What is the probability that the diameter of a randomly selected pipe will exceed 0.44 inches?

    asked by missy
  26. Physics

    List the particles that make up an atom. What are their charges? How are they arranged? wHat is the approximate amu of each particle?

    asked by fahad
  27. grammmar

    Fill up the blanks with correct tense of the verb in the bracket.1.Thechild---a glass of juice every morning.(drink)

    asked by ra ny
  28. engineering

    a boy of mass 40kg is sliding down the spiral slide at a constant speed such that his position is measured by theta=(0.7t) rad and z=(-0.5t) m where t is in seconds. How do you find the components of forces Fr, Ftheta and Fz which the slide exerts on the

    asked by sarah
  29. Physics

    I have no idea on how to do either part of these questions please help (part 1 of 2) To move a refrigerator of mass 110 kg into a house, a mover puts it on a dolly and covers the steps leading into the house with a wooden plank acting as a ramp. The plank

    asked by NIQUEFROMDALLAS
  30. science

    List five physical properties of a quarter.

    asked by Joe
  31. History

    What were the pen names of the authors of the Federalist papers? Why did they go by these names?

    asked by Abby
  32. Science

    What happens when sulphur and iron aare chemically mixed

    asked by Simon :-)
  33. Urgent math help!

    What is 66 2/3% of 891? PLEASE show me the steps on how you got the answer to this question...

    asked by Lisa
  34. PHYSICS

    lIST THE PARTICLES THAT MAKE UP AN ATOM. wHAT ARE THEIR CHARGES? hOW ARE THEY ARANGED? wHAT IS THE APPROXIMATE AMU OF EACH PARTICLE?

    asked by fahad
  35. economies

    In the study of transitional economies, the gradualist approach is. a: Is a policy of slow adoption of economic reforms that Keynes has popularized in fighting the great depression. b: Is a policy of slow adoption of economic reforms by Putin's government

    asked by me3598
  36. Science

    List the particles that make up an atom. What are their charges? How are they arranged? What is the approxiamate amu of each particle?

    asked by Joe
  37. Science

    Solve two speed problems with a different missing part of the formula.

    asked by Joe
  38. Science

    how does a time/distance graph look. What soes a horizantal and diagonal line mean.

    asked by Joe
  39. methodologies

    Which health insurance program is designed to complement the retirement survivor, and disability insurance enacted under Title ll of the social secuity act? Medicare? Medicaid-Civilian health and Medical program-Vet Admin

    asked by Debbie
  40. psychology

    Can someone help me with these questions, I am having trouble with them. 3. Traumatic events do not always result in a diagnosable psychological disorder. What factors determine how a person may be affected by one such event? 4. What are the four stages in

    asked by Jenn
  41. psy

    I have to do an assignment on the following: I need to choose one of the following topic voting for your favorite political candidate joining a religious group refraining from driving under the influence of alchool or drugs I need to develop a plan to

    asked by rose - Ms. Sue
  42. physics

    List Daltons idea of an atom model.

    asked by fahad
  43. physics

    Whats the difference between a newton and a kilogram?

    asked by fahad
  44. world history

    i need to make 3 object from the indus valley and 8 that describes the important beliefs of buddhism could someone tell what items i need to make

    asked by jeannine
  45. PHYSICS

    gIVE AN EXAMPL OF WHEN AVERAGE SPEED WOULD BE USED INSTEAD OF INSTANTANEOUS SPEED.

    asked by fahad
  46. math

    WHAT IS THE RECIPROCAL OF 5 3/4

    asked by dave
  47. PHYSICS

    HOW ARE FORCE AND MASS RELATED.

    asked by fahad
  48. PHYSICS

    lIST FIVE PHYSICAL PROPERTIES OF A QUARTER.

    asked by fahad
  49. negative prefixes

    I am trying to plan a lesson about negative prefixes for 5th graders and can't find any good websites to help me. I was hoping someone could help me find some resources. If someone knew of a fun or interesting way to teach this lesson that would be even

    asked by ash
  50. medical coding and billing

    Can someone please help me by reading my research project on HIPAA for me I just want to know if I did it right or not. These are the things that want me to do.Answers each question in a comlete paragraph that includes an introductory sentence, at least

    asked by kay
  51. AED204

    what is a social factor?

    asked by Mimi
  52. FRENCH

    How does one translate "that will be fun" into French? Thank you!

    asked by CC
  53. grammmar

    fill in the blanks with the correct tense of the verb.1.1."The guests have----,"said Mother(COME)

    asked by ra ny
  54. math

    how to subtract 6 3/10 - 4 11/15

    asked by sharen
  55. Chemistry Confusion!

    1 mol of an ideal gas expands under isothermal conditions (T=298.15K). The initial pressure and volume is 2.00 atm and 1.00L respectively, and the final pressure is 1.00 atm. Find the expansion work. The answer is  w =  -101.325 J. I am unsure how to

    asked by Derek
  56. AED

    help.. Many historical and current events are controversial, including multicultural, gender, and moral issues. Although teachers do not have to shy away from teaching controversial subject matter in the social studies classroom, they should approach the

    asked by troyer0269
  57. IT 221

    I need help or ideas of a project scenario, could someone help please?

    asked by Sam
  58. physics

    Ok, so I know the different kinds of forces (applied, normal, gravity, parellel, and friction). And I know how to sub in other numbers for those forces ( for example, Parallel force is equal to mass times gravity times sine theta). I also know the "base"

    asked by Julia
  59. Help! with another math problem

    What is 0.06% of 250? Please show the steps on how you got the answer...

    asked by Lisa
  60. Mathamatics

    I need help figuring out these two math word porblem: 1) A sales tax of 6% of the cost of a car was added to the purchase price of $29,500. a. how much was the sales tax? b. What is the total cost of the car, including sales tax? 2) During the packaging

    asked by Tati
  61. Child Development

    Identify the components of the information processing theory

    asked by Laurie
  62. pre cal

    What would cos2theta=-1/2 be???

    asked by becca
  63. Physics

    How could it be possible thaat an object with a density greater than that of water could float on water.

    asked by Fahad
  64. world history

    in 18th century liberals stressed

    asked by am
  65. Physics

    Three part problem cant figure out the second and third parts (part 1 of 3) A cart loaded with bricks has a total mass of 12.9 kg and is pulled at constant speed by a rope. The rope is inclined at 20.6 ◦ above the horizontal and the cart moves 25.8 m on

    asked by Johnathon
  66. pHYSICS

    iTS A HARD QUESTION. wHAT IS THE FORMULA FOR SPEED? sOLVE TWO SPEED PROBLEMS WITH A DIFFERENT MISSING PART OF THE FORMULA.

    asked by fahad
  67. trig

    Which expression is equivalent to tan theta - sec theta/sin theta? A)-cot theta B)cot theta C)tan theta-cot theta D)tan theta-sec^2theta

    asked by Sha
  68. PHYSICS

    hOW ARE ARROWS USED TO SHOW FORCE VECTORS

    asked by fahad
  69. PHYSICS

    WHEN AN OBJECT IS SUSPENDED IN WATER, IN WHICH DIRECTIONS ARE FORCES APPLIED.

    asked by fahad
  70. trig

    Use an addition or subtraction formula to write the expression as a trigonometric function of one number: tan75degrees-tan15degrees/1+tan75tan15=tanAdegrees =square root B Its asking for the value of A and B. I know A =60 degrees, what I can't figure out

    asked by Natash
  71. science

    why does horizon B contain mineral from horizon A ?

    asked by jazzy
  72. science

    why is the soil profile in a rain forest different?

    asked by jazzy
  73. college

    I am stuck with this question. Which system would one believe in and more effective control model or due process model.

    asked by DJ
  74. math

    5+2(x-1) what does x equal and what are the steps to find it ??? PLZ HELP !!!!!!!

    asked by vaishnavi
  75. math

    5-2x+2=12 what does x equal and what are the steps to find it ???

    asked by vaishnavi
  76. maths

    hi guys i need to see working for this question 7(6+√7) thanks

    asked by jesus
  77. English

    I need to critique an opinion piece that must be more than six pages long. I'm having lots of trouble finding any such article. Everything I can find on the web is three pages or less. Any ideas?

    asked by Cody
  78. PE

    While I'm running the mile I feel a real pain in my legs and always stop after running a couple of laps. How do I jog and not stop even if there is pain

    asked by LIza
  79. seience

    1.Diffusion in gases is the property by which they have natural tendency to inter mix.Whether true or false.

    asked by mimo
  80. methodologies

    Medicare and Medicaid financial issues put constraints on? physician services? critical care centers public health outpatients services phsician services

    asked by Debbie
  81. HR

    I am kind of stuck on this question, I need some ideas or suggestions, thanks. Garbage collectors (belongs to a union) in a town wants higher pay (eg 17%),but the mayor know that there is no way that taxpayers will accept a settlement near that. What are

    asked by Shane
  82. History

    Why did relations between the United States and the USSR deteriorate after WWII?

    asked by mike
  83. math need help please

    Find the reciprocal of a. - 1/10 (-4-7) b. ½ / ¼ (hint: solve these first then find reciprocal of the answer)

    asked by nonna
  84. psychology

    Can someone help me with these questions, I am having trouble with them. 1. Traumatic events do not always result in a diagnosable psychological disorder. what factors determine how a person may be affected by one such event. 2. What are the four stages in

    asked by Jenn
  85. math

    Find the reciprocal of a. - 1/10 (-4-7) b. ½ / ¼ (hint: solve these first then find reciprocal of the answer) Responses

    asked by nonna
  86. 9th grade

    How do you solve [x-1]=[x+3]

    asked by LIza
  87. business

    You recently observed a meeting between Ron, (a production manager at your company) and a sales representative from “Big Machines Inc”. Big Machines Inc last year sold your company a major piece of production equipment. They are now trying to sell your

    asked by Anonymous
  88. Trig

    I was just wondering if anyone can explain the Law of Sines- "Ambiguity Case" to me, in a way that is easy to understand.

    asked by Ariel
  89. Geography

    hello, can u please tell me some websites where i can find a descriptive journey through accra to cape coast, ghana

    asked by numz
  90. Internation business

    Select a company and country that interests you. You have been asked to evaluate the country you selected as a potential market for your product(s)/service(s) and present your findings to other managers of the organization in a memo. In your memo, be sure

    asked by Anonymous
  91. physics

    Describe the differences between the force of gravity and buoyant forces on a swimmer.

    asked by fahad
  92. Physics

    An object traveling through the air has what forces acting on it.

    asked by fahad
  93. PHYSICS

    aN OJECT TRAVELING THROUGH THE AIR HAS WHAT FORCES ACTING ON IT?

    asked by fahad
  94. history

    hi. I need to write an 8 page paper about charles finney that is due monday but the only thing online i can find is wikipedia. Can someone please help me.

    asked by bill
  95. economies

    True or False, South Africa was technologically developed country because of its policy of Apartheid and the international economic sanctions.

    asked by me3598
  96. economies

    What are the four major initiatives of the ninth five year plan of chine (1996-2000) I found three, fighting inflation, increasing international integration and productivity but I cannot find the forth.

    asked by me3598
  97. Science

    Give an example of when average speed would be used instead of instantaenous speed.

    asked by Joe
  98. Geography

    What is happening to the distance between Canada and europe

    asked by Colin
  99. Chem. Copper and Chromium. Random Q...

    So, I have a general chemistry test. My teacher said to know... "Copper and Chromium exceptions." I have no idea what that means. I am currently learning about Thermochemistry and the Quantum Theory of an Atom. Do you have any idea what this might mean??

    asked by Sarah
  100. Grammar

    a. john has become a rather good actor b. john has became a rather good actor Why is A correct?

    asked by Lisa
  101. high school

    If F(n) = F(n-1) + (n-1) F(5) = 11 What is F(1)?

    asked by Ali
  102. SOSE

    Help with good and bad points of dictatorship/tyranny????

    asked by SAMMI^^^
  103. English 1

    How do you write a sonnet and a couplet and a quatrain. How do you know if a syllable is stressed or unsressed by just looking at the word

    asked by LIza
  104. History

    Why was an entirely new consitution needed according to Publius?

    asked by Catie
  105. math

    how to convert 2/3 into a decimal

    asked by nonna
  106. English

    1. Choose the things you should not do in a fire. 1-2. Choose the things you should not do when a fire breaks out. (Are both the same and correct?) 2. Separate what you have to keep at school from what you have to keep at home, and write the sentences

    asked by John
  107. art

    Where is clay found?

    asked by yr65
  108. trig

    Which expression is equivalent to tan theta-sec theta/sin theta? I don't get this

    asked by Sha
  109. Math help!

    I am having trouble completing my homework on finding the amount when the percent and the base are given. I need help with this question: Find 10.7% of 485. can you show all the steps on how you got this answer?

    asked by Lisa
  110. Math

    What is 0.25% of 3000? I'll like if you'll show me the steps on how you answered this problem.

    asked by Kiara
  111. Math help!

    Find 12.8% of 625. Need help with answering this problem...

    asked by Kiara
  112. problem solving

    execute the indicated multiplications. (x-2)(x^2+2x+4)

    asked by tracy
  113. science

    what kind of change is it when water goes through a water cycle

    asked by sydney
  114. 10th grade

    how does the individual influence world events?give a current event example

    asked by ashley
  115. on college

    how to plan a 3 week job aid

    asked by kenneth
  116. socialstudies

    one example of a chemical in food that is not a nutrient is

    asked by am
  117. trig

    simplify and write the trigonometric equation in terms of sine and cosine. tan^2x-sec^2x

    asked by Natash