Questions Asked on
October 11, 2008

  1. chemistry

    (You may have seen this before) A crude oil burned in electrical generating plants contains about 1.2% sulfur by mass. When the oil burns, the sulfur forms sulfur dioxide gas: S(s) + O2(g) -------> SO2(g) How many liters of SO2 (d = 2.60 g/L) are produced

    asked by starlight
  2. Physics

    An athlete at the gym holds a 4.33 kg steel ball in his hand. His arm is 75.0 cm long and has a mass of 5.28 kg. What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor?

    asked by Amberly
  3. Government

    1) The portion of the population selected to participate in a poll is known as the a. public b. population c. deliberative group d. sample e. focus group 2) A sample that does not overrepresent any portion of the population and whose responses can

    asked by sam
  4. chemistry

    How many electrons are actually in the composite band for Fe ?

    asked by Anonymous
  5. chemistry

    How long would it take for 1.50 moles of water at 100.0 to be converted completely into steam if heat were added at a constant rate of 19.0 j/s ?

    asked by Anonymous
  6. Physics

    A man of mass 69.5 kg stands on a scaffold supported by a vertical rope at each end. The scaffold has a mass of 22.3 kg and is 2.4 m long. Suppose the man stands to the right from the middle of the scaffold that is a distance one sixth of the length of the

    asked by Anonymous
  7. Physics

    The moon has a period of 27.3 days and a mean distance of 3.90 x 10^5 km from the center of Earth. a) Use Kepler's laws to find the period of a satellite in orbit 6.70 x 10^3 km from the center of Earth --- I was able to do this and the answer i got was:

    asked by Tanveer
  8. Physics

    What is the gravitational force vetween 2 15-kg packages that are 35cm apart? What fraction is this of the weight of one package?

    asked by Tanveer
  9. english composition

    what is the thesis statement in Why we crave horror movies?

    asked by Andrea
  10. re- yr8

    i need to write an essay about if jesus existed.it is similar to the one that someone asked for help about a few weeks ago. the question im stuck on is i need to ask questions about that jesus did exist and answer them. the question i have come up with is

    asked by starr
  11. Word problem

    Edward can paint a bedroom in 3hr. Jeb can paint the same room in 3.75 hours. How long will it take them, working together, to paint the bedroom?

    asked by Jennifer
  12. physics

    A person pushes a 14.5 kg lawnmower at constant speed with a force of 88 N directed along the handle, which is at an angle of 45o to the horizontal. What is the force required to accelerate it from rest to 1.5 m/s in 2.5 seconds?

    asked by Steve
  13. chemistry

    Identify common properties of the molecules in a compound with a liquid crystal phase contain ions contain aromatic groups contain polar groups have long molecules

    asked by Anonymous
  14. Pre-Calculus-check answers

    How many ways can 5 students be chosen from a group of 4 juniors and 6 seniors to be on the prom committee if exactly 3 students must be seniors? Answer: 5400 Find the probability of getting a sum of 5 on the first toss of two number cubes and a sum of 6

    asked by Lucy
  15. Personal Finance

    Marcia and Phil Helm, a couple in their thirties, have been married for several years. They have no children, and each has a professional career. Marcia is a trainee for a management position at a large department store, and Phil is an engineer at an

    asked by Sue
  16. 8th grade, history ?#3

    How did spain establish territorial claims in north america?

    asked by Debra
  17. Business Communication

    Your boss wants to send a brief email message welcoming employees recently transferred to your department from your Hong Kong branch. They all speak English, but your boss asks you to review his message for clarity. What would you suggest your boss change

    asked by Emmanuel
  18. math

    write a system of equations with the graph solution (2,1,0).

    asked by anonymous
  19. Physics

    A bird watcher meanders through the woods, walking 0.35 km due east, 0.65 km due south, and 2.05 km in a direction 31.0° north of west. The time required for this trip is 3.50 h. Determine the magnitude and direction (relative to due west) of the bird

    asked by Kevin
  20. math

    what is 5/6 x 1/3 x 0.8 x 9/8??

    asked by Jackie
  21. History

    How can I persuade fellow colonists during the American Revolution to boycott British goods?

    asked by Mike
  22. spanish play

    In the spanish play Punishment without Revenge by lope de vega I have to find the answers for this question. What are the various factors that contribute to the tragic result of the events in the play? I am sure that one factor would be how the duke wants

    asked by Brooke
  23. Stat

    PLEASE CHECK AND SEE IF I HAVE THESE ANSWERS CORRECT. T F 1. Hypothesis testing is a procedure based on sample evidence and probability theory to decide whether the hypothesis is a reasonable statement. ANSWER (True) T F 2. For a one-tailed test using the

    asked by Mary
  24. com220

    the readings for the week listed five questions that can be used to advantage in seeking to evaliate the reliability of online sources. 1.what is the purpose and affiliation of the organization or author related to the article? 2.what are the author's

    asked by lisa
  25. Personal Finance

    1. Joe won a lottery jackpot that will pay him $12,000 each year for the next ten years. If the market interest rates are currently 12%, how much does the lottery have to invest today to pay out this prize to Joe over the next ten years? 2. Mary just

    asked by Sue
  26. Personal Finance

    Nancy Tai has recently opened a revolving charge account with MasterCard. Her credit limit is $1000, but she has not charged that much since opening the account. Nancy hasn't had the time to review her monthly statements as promptly as she should, but over

    asked by Sue
  27. English

    1. The work is too difficult to do. 2. The work is so difficult that I cannot do it. (Does #1 mean #2? Are both the same?) 3. Mother Teresa...... (Why do you use 'Mother' before Teresa, the famous nun who passed away?) 4. I hope to be a scientise. 5. I

    asked by John
  28. physics

    A bag of cement of weight 370 N hangs from three wires Two of the wires make angles è1 = 58.6° and è2 = 23.8° with the horizontal. If the system is in equilibrium, calculate the tension T1.

    asked by Vishnu
  29. 8th grade, history

    What was life like in spanish settlements in the caribbean and south america?

    asked by Debra
  30. biology

    In the search to discover the agents that caused mad cow disease, scrapie in sheep, and CJD and kuru in humans, the diseased brain tissues were filtered and still found to be infective, indicating they are not bacteria but either viruses or chemical

    asked by Brooke
  31. Science

    What is the relationship between the frequency of a light wave and its energy and the relationship between the wavelength of a light wave and it's energy?

    asked by Mariz
  32. Finance-Options

    I am having trouble with options. Long call, i know it means you buy the right to buy an asset. Long put, you buy the right to sell an asset. What is confusing the the short call and short put. What does it mean you sell the right to buy and sell the right

    asked by Evan
  33. Functions

    If f(x)=2x^4-9x^3+6x-5, then use synthetic division to find f(6) What is synthetic division? How do I solve this?

    asked by Jennifer
  34. com220

    the question is based on the above questions, Elaborate on the authorship pn one of the sources that you consider reliable. My answer was do you think that what are the author's credentials would be consider a reliable. I don't have to anser the those

    asked by lisa
  35. english- yr 8

    i need to research 4 different newspapers. which i have done. im having trouble with what type of language is used in the newspapers. i don`t know what it means. thanks

    asked by nathan
  36. msg bobpursley

    thanks for your help on the newspaper question.it was a really big help

    asked by nathan
  37. Physics

    A first order exponential decay can be written as A(t)= Ae^(-t/r) where A(t) is the amount (of substance) after time t, A is the initial amount at time t=0 and r is the decay time. The fall time is defined as the time in which A(t) falls from 90% to 10% of

    asked by Beth
  38. sociology

    i have got a sociology question..and i don't know on what really to talk.The question is that..'To What extent class divisions are disappearing' i hve talk on embourgeoisement, proletarianization.changes from traditional w.class to new working class...Can

    asked by celly
  39. math

    Hello, I need help with this math problem 4+3/3 + 5+1/5 its a fractions question how do I figure out the answer, thanks

    asked by Ashley
  40. math

    Need help with algebra question If c= 5/9 (F-32)and F is 77 then what is c the 5/9 reprsents a fraction, I am no good in algebra and need help how to get the answer and the problem, thanks

    asked by chris
  41. American History

    What was the name of the treaty that NE negotiated with Spain shortly after the American Revolution that would increase American trade in NE, but gave Spain control of the Port of New Orleans, Screwing over the South West. This was an example of

    asked by Phil
  42. 8th grade, history ?#2

    What type of relationship exsited between the spanish and native americans living in the caribbean and south america?

    asked by Debra
  43. 8th grade, history ?#5

    What type of relationship exsited between the spanish and native americans living in north america?

    asked by Debra
  44. 8th grade, history ?#6

    How did france establsi hterritoral claims in north america?

    asked by Debra
  45. 8th grade, history ?#8

    What type of relationshi exsited between the french and native americans living in north america?

    asked by Debra
  46. US History

    why were the sons of liberty considered as good citizens?

    asked by Mike
  47. algebra

    I have a problem. It says to simplify: t-2/t+4 x 4t+16/2t^2-8

    asked by Jennifer
  48. statistics

    1000 significance tests are performed using alpha = .05. Assumimg that all null hypotheses are true, about how many of the test results would you expect to be statistically significant?

    asked by brian
  49. math

    solve the system by elimination. 6x-6y-4z=-10 -5z+4y-z=-12 2x+3y-2z=9

    asked by anonymous
  50. Science

    What happens when a wave strikes a barrier? What happens when a wave strikes a barrier at an angle?

    asked by Mariz
  51. chemistry

    reaction between iron fillings and su lphur will form

    asked by sara
  52. geometry/algebra

    I have tried to work this several ways and can not get the answer of 5 find x if the slope of a line passing through points A(4,3) and B(x,7)equals 4

    asked by Rose
  53. 5th grade science

    science-well im learning about the diffence between a vascular and nonvascular plant and i don't get it so if you can help.thanks 5th grader

    asked by fithgrader
  54. critical thinking

    Which of the following is most accurate? A) An appeal to precedent is a type of inductive generalization. B) An appeal to precedent is a type of analogy. C) An appeal to precedent is a type of disjunctive syllogism. D) An appeal to precedent is a type of

    asked by Joe
  55. eth 125

    7 to 10 leaders or legislative events from both the Civil Rights and Black Power movements

    asked by Anonymous
  56. Economics

    If the price of apples rises from $3.50 a pound to $4.00, and my consumption of apples drops from 30lbs. of apples to 20lbs.; what would be the price elasticity of demand of apples. My figures are all wrong; how would I calculate it.

    asked by Jan C
  57. Physiology

    Glial cells normally lose their mitotic ability prior to birth True or False Which of the following is NOT a function of astrocytes? a. can take up NT from a synapse b.can stimulate or inhibit neurons c.needed to form synapses in the CNS d.Phagocytose

    asked by natash
  58. Health

    This is not homework but couldn't find this I wan tot know if you can take to much potassium gluconate? I once had to wait on one of my surgery's because my potassium was to low and know the risk of that but can you take to much and what will happen if you

    asked by lois
  59. History

    Is sectionalism a social issue or a political issue?

    asked by Matt
  60. 8th grade, history ?#4

    What types of permant settlements did the spanish establish in north america?

    asked by Debra
  61. 8th grade, history ?#7

    What was life like in french settlements in north america?

    asked by Debra
  62. calculus help

    Is there any good calculus websites out there that teach every possible derivative there is? Such as the basic rules of differentiation, product and quotient rules, chain rule? ((I'm really bad a understanding the square roots. )) My book gives me examples

    asked by student01
  63. Health

    Has specialized medicine made an overall positive or negative impact on the quality of patient-centered health care delivery?

    asked by Aliona
  64. physics

    An athlete at the gym holds a 4.33 kg steel ball in his hand. His arm is 68.7 cm long and has a mass of 4.69 kg. What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor? Torque = massball x

    asked by Vishnu
  65. physics

    A pendulum consists of an object of mass 1.07 kg that hangs at the end of a massless bar, a distance 1.14 m from the pivot point. Calculate the magnitude of the torque due to gravity about the pivot point if the bar makes an angle of 22° with the

    asked by Vishnu
  66. college

    Four nutritional or physical exercise goals o Actions taken to meet each goal

    asked by ray
  67. math

    Write the following as a common fraction or a mixed number. Write your answer in lowest terms. 0.44

    asked by Trac
  68. science

    i need help making a catapult. im gonna check my pc tomorrow

    asked by Robby
  69. algebra help

    Hello, I need help figuring out this algebra problem. If x=7 and y=-2 then x-3y= thanks

    asked by Brooke
  70. Health and Human Services

    How can a person apply knowledge that they have gained to a future career in Health and Human Services?

    asked by Ree
  71. government

    one advantage of direct contact between elected offials and the public verus the use of public opinion poll is that direct contact a. is always more accurate than a poll b. makes it less likely that certain public concerns will be overlooked. c requires

    asked by sam
  72. english

    THE TREATMENT BASED ON THE THEORY OF PRESSURE ON BLOOD VESSELS IS WHAT

    asked by aly
  73. physiology

    during the absolute refractory period a supramaximal stimulus can bring the cell to threshold true or false

    asked by natash
  74. Personal Finance

    Bernie and Pam Britten are a young married couple beginning careers and establishing a household. They will each make about $50,000 next year and will have accumulated about $40,000 to invest. They now rent an apartment but are considering purchasing a

    asked by Sue
  75. History

    Should Henry the Eigth be seen better than his father Henry the seventh? Why?

    asked by Minerva Wisdom
  76. Geography

    I want to write a coclusion of an investigation of bull sharks that i did. Please just tell me how to start and end it. Thanks.

    asked by Reni
  77. year7 re

    why do we give chocolate eggs at easter? what do they symbolise.?thanks

    asked by poppy
  78. physics

    what is the name for particles in a gas spreading out?

    asked by Anonymous
  79. algebra

    I have a problem. It says to simplify: t-2/t+4 x 4t+16/2t^2-8

    asked by Jennifer
  80. Pre-Calculus-check answers

    Write the equation of the circle that passes through the point (3,4) and has its center at (1,2). Answer: (x-1)^2 +(y-2)^2 = 8 Thanks for the help.

    asked by Lucy
  81. princple of business

    described a functional area of a business production

    asked by khrista cyrus
  82. economics

    how do you change the base year of a price index?

    asked by ari
  83. Algebra

    (t-2)/(t+4) x (4t+16)/(2t^2-8)

    asked by Jennifer
  84. Pre-Calculus-check answers

    Find the degree measure of the central angle whose intercepted arc measures 8cm in a circle of radius 15cm. Answer: -401.07 degrees

    asked by Lucy
  85. Math

    I need help on how to solve equations with variables on both sides. 1. 30=8 - 2x 2. 98 - 4b= -11b 3. 3p - 8= 13 - 4p 4. 9 - 2y/7 = y 5. 1/3(12 - 6x) = 4 - 2x

    asked by Adriana
  86. Project Management

    MS Project 2003 as a Project Management Tool Is it appropriate to use a project management tool for all projects, no matter what size they are?

    asked by animal
  87. math

    hey i need hep w/ the mean and median HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!-thanks

    asked by fithgrader