Questions Asked on
February 20, 2010

  1. cpcc

    Two people are pulling a boat through the water as in Figure P4.20. Each exerts a force of 600 N directed at a θ = 45.0° angle relative to the forward motion of the boat. If the boat moves with constant velocity, find the resistive force vector F exerted

    asked by nat
  2. physics

    Two point charges are placed along a horizontal axis with the following values and positions: +6.0 µC at x = 0 cm and -24.0 µC at x = 60 cm. At what point along the x axis is the electric field zero?

    asked by Jithin
  3. chemistry

    An ideal liquid solution has two volatile components. In the vapor in equilibrium with the solution, the mole fractions of the components are (a) both 0.50; (b) equal, but not necessarily 0.50; (c) not very likely to be equal; (d) 1.00 for the solvent and

    asked by david
  4. maths

    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 thommini
  5. Microecon

    The following diagram shows the cost structure of a monopoly firm as well as market demand. Identify on the graph and calculate the following: a. Profit-maximizing output level b. Profit-maximizing price c. Total revenue d. Total cost e. Total profit or

    asked by MICHELLE
  6. Microecon

    Which of the following industries would you classify as an oligopoly? Which would you classify as monopolistically competitive? Explain your answer. If you are not sure, what information do you need to know to decide? a. Athletic shoes b. Restaurants c.

    asked by MICHELLE
  7. Biology

    41. A group calling itself "Virus Alive!" believes that viruses are living organisms. They have petitioned the scientific community to include viruses in the biological classification system. You are a scientist assigned to explain to this group that,

    asked by mysterychicken
  8. Math

    A farmer has 230 ft of fence to enclose a rectangular garden. What is the largest garden area that can be enclosed with the 230 ft of fence? Explain your work.

    asked by Crystal
  9. maths

    what is 907.457 rounded to the nearest tens place? How to get the answer.

    asked by jim
  10. chemistry

    How many milliliters of glycerol, d=1.26 g/ml, must be added per kilogram of water to produce a solution with 4.55 mol% C3H8O3 ?

    asked by sab
  11. organic chemistry

    is an α,β-Unsaturated ester CH2=CHCO2Et more or less reactive than an CH2=CHOEt in electrophilic addition and where do the two slot into the reactivity order of CH2=CH2 < CH2=CHMe < CH2=CHBr i think CH2=CHOEt is more reactive than the Br equivalent but

    asked by libby
  12. Biology

    Need help with these-- 25. Bacteria and eukaryotes share the characteristic of a. multicellularity b. a cell nucleus c. a cell membrane d. all of the above 26. Two ways that bacteria causes disease are a. toxins are released that break down and absorb host

    asked by mysterychicken
  13. chemistry

    How many grams of water would you add to 1.00 kg of 1.48 m CH3OH(aq) to reduce the molality to 1.00 m CH3OH? Ok...I got 480, and the systems says there's a rounding error. I did it again and I got 480. Someone help me?

    asked by david
  14. Biology

    Need help with these-- 25. Bacteria and eukaryotes share the characteristic of a. multicellularity b. a cell nucleus c. a cell membrane d. all of the above 26. Two ways that bacteria causes disease are a. toxins are released that break down and absorb host

    asked by mysterychicken
  15. English

    What language was Metamorphoses by Ovid written in?

    asked by Molly
  16. Statistic

    18. Twenty students randomly assigned to an experimental group receive an instructional program; 30 in a control group do not. After 6 months, both groups are tested on their knowledge. The experimental group has a mean of 38 on the test (with an estimated

    asked by Doris I
  17. Rate Laws

    If the initial concentration of AB is 0.210 M, and the reaction mixture initially contains no products, what are the concentrations of A and B after 75 s? The reaction is in the second order: rate=k[AB]^2 The rate constant is k=5.4*10^2 M*s I don't

    asked by Kyle
  18. Mega Stat

    How do you know the p-value on megastat. On minitab It looks like it gets a different p-value than megastat. I got a number from megastat of 2.35E10 and on minitab it was 0.000.

    asked by mark
  19. Conflict Management Communications

    Provide 2 examples of passive aggressive societal groups and behaviors. I thought the KKK would be one good example, any other thoughts would be most appreciated! Thank yoU! :)

    asked by Pamela
  20. Biology

    Need help with these-- 25. Bacteria and eukaryotes share the characteristic of a. multicellularity b. a cell nucleus c. a cell membrane d. all of the above 26. Two ways that bacteria causes disease are a. toxins are released that break down and absorb host

    asked by mysterychicken
  21. math-please help!

    The coordinates of P are (-2,5) and the coordinates of Q are (6,1) (C) What is the equation of the perpendicular bisector of PQ?

    asked by Chelsea
  22. Math

    Point M is the midpoint of line ABMC. Which of the following statements is NOT true? Why? (1)AM=MC (2)AB BC (4)BM

    asked by Billy
  23. Planet Juniper

    It takes Juniper _____ to make one rotation. This means that one day on Juniper is actually ____ long. That is as many as _____ Earth days!..answer this questions...thanks

    asked by Anonymous
  24. Planet Juniper

    What does Juniper look like: answer this questions

    asked by Anonymous
  25. Chemistry

    I keep reading that lead is a poor electrical conductor, but I would like to know the chemistry of why exactly it is a poor conductor.

    asked by Sara
  26. math

    is (-5,3) a solution for 8x+3y=-1 I say yes my husband says no

    asked by Renee
  27. Algebra

    what is the solution to 2(-5y cubed)squared + (-3ycubed)cubed

    asked by Kathleen
  28. math

    in 1990 the life expectancy of males in a certain country was 64.7 years. In 1994 it was 67.3 let E represent the life expectancy in year t and let t represent the number of years since 1990. What is the linear function E(t) that fits the data? what would

    asked by Renee
  29. math

    use distributave property to help solve the equation. 5(w-6)=10 W=?

    asked by mizmarie
  30. math 116

    collect like terms 11a+7b-5a-9b 11a+7b-5a-9b= 4 Is this correct?

    asked by violet
  31. science

    if something big from outerspace hit earth, then where would it have least human impact?

    asked by Anonymous
  32. poetry for english

    i need to write three more poems for english about child abuse using onomatopoeia, personification, voice, and alliteration

    asked by trennea
  33. french

    Je Suis Allee A Le Centre Commercial

    asked by jay
  34. chemistry

    An ideal liquid solution has two volatile components. In the vapor in equilibrium with the solution, the mole fractions of the components are (a) both 0.50; (b) equal, but not necessarily 0.50; (c) not very likely to be equal; (d) 1.00 for the solvent and

    asked by anonymous
  35. chemistry

    Why is it that an electrochemical cell(galvanic cell) cannot operate forever?

    asked by LALA
  36. Social Studies

    How is your social studies instruction utilizing reading, writing, speaking,listening, and the dramatic arts?How could you improve in these areas

    asked by Anonymous
  37. Health - Independent learning

    What are examples of hereditary factors that influence personal health? I need three of them.

    asked by AL 87
  38. 5th grade

    Carla formed this large cube from eight small cubes. She put the large cube on a worktable and then spray painted all the sides that she should without moving any part of the large cube. If she take the large cube apart, how many of the small cubes will be

    asked by Courtney
  39. chemistry

    Under an O2 pressure of 1.00 atm, 28.31 mL of O2 dissolves in 1.00 L H2O at 25 degrees. Determine the molarity of O2 in an aqueous solution at equilibrium with air at normal atmospheric pressure. The volume percent of O2 in air is 20.80 \%. (Have no idea

    asked by david
  40. Math

    Evaluate and tabulate the values of y for the value(s) given. y = 2x3, for x = -3, 0, 1, 4

    asked by Crystal
  41. Math

    State whether the given equation represents a linear, quadratic, or exponential function. Tell how you decided. y = -8x2 + 4

    asked by Crystal
  42. Math

    Solve the linear equation using any technique you have learned. Name the technique. Check. 3x + 12 = -7x - 28

    asked by Crystal
  43. Math

    Solve the quadratic equation using any technique you wish. Name the technique. Check. 12x2 + 10x = 0

    asked by Crystal
  44. Math

    Find the equation of a line that passes through the point (1, 2) and has a slope of 1/3. Show how you found the equation.

    asked by Crystal
  45. Math

    A store sells a 1-liter container of juice for 75¢ and a 2-liter container for $1.40. Assume that the cost varies linearly with the number of liters, and find the slope of the line that shows the relationship. How many liters would be in a container that

    asked by Crystal
  46. Math

    Find the other endpoint of a line segment with the given midpoint and one endpoint. Endpoint (6, 4): midpoint (3, 5).

    asked by Crystal
  47. Math

    Give the equation of the line that passes through point (5, 1) and is parallel to the line y = 3x – 1.

    asked by Crystal
  48. Math

    Give the equation of a line perpendicular to the line y = 4x having the same y-intercept.

    asked by Crystal
  49. Conflict Management

    What is the relationship between passive-aggressive behavior and traditional power bases?

    asked by Rachale
  50. Math

    What does R(2,2) mean when talking about transformations?

    asked by Carla
  51. adult education

    Can you help me with penn foster exam for general math 1?I would like to know if my answers are right

    asked by molisa
  52. chemistry

    Under an O2 pressure of 1.00 atm, 28.31 mL of O2 dissolves in 1.00 L H2O at 25 degrees. Determine the molarity of O2 in an aqueous solution at equilibrium with air at normal atmospheric pressure. The volume percent of O2 in air is 20.80 \%. (Have no idea

    asked by david
  53. math

    how do you find the slope of a line? and is it possible to find it by taking two points on a line?

    asked by Anonymous
  54. physics

    What can we conclude from the attractive nature of the force between a positively charged rod and an object? 1. Cannot be determined. 2. The object is an insulator. 3. The object is a conductor.

    asked by Anonymous
  55. physics

    What can we conclude from the attractive nature of the force between a positively charged rod and an object? 1. The object has no net charge. 2. Cannot be determined. 3. The object does not have an appreciable negative charge. 4. The object does not have

    asked by Anonymous
  56. business

    Why publicly traded companies must report revenue growth? What is the effect of this reporting on business operations?

    asked by Xichenio
  57. physics

    What can we conclude from the attractive nature of the force between a positively charged rod and an object? 1. The object has no net charge. 2. Cannot be determined. 3. The object does not have an appreciable negative charge. 4. The object does not have

    asked by Anonymous
  58. accounting

    Your team has been assigned the duty to diagram the audit trail for your company. In your diagram, show several transactions and how they would be tracked from the journal entry to the financial statement and back to the journal entry

    asked by Nicole
  59. Physics

    A 63-kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion. Find the force (magnitude and direction) exerted on her by the bungee cord at an instant when her downward acceleration has a magnitude

    asked by Anonymous
  60. science

    i want to see if thers a web site wer you could see the moons face from february 2010 he info and pic

    asked by lis
  61. physics

    for some reason, choice 6 was incorrect when i tried it sorry to keep bothering you about it drwls

    asked by from previous question
  62. Physics

    A 63-kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion. Find the force (magnitude and direction) exerted on her by the bungee cord at an instant when her downward acceleration has a magnitude

    asked by Anonymous
  63. help

    no I did not know could you please tell me how to do it, and thank you.

    asked by neka
  64. aed 202

    Identify the components of language development in terms of Marios progress through school in 200-300 words

    asked by Denise
  65. s.s.

    in 1910 how many women were working outside their homes?

    asked by queeneka
  66. s.s.

    what was the chicago political machine called where bosses gave out legal favors in return for money

    asked by queeneka
  67. Social Studies

    The task of economic policy is to create a prosperous America. The unfinished task of prosperous Americans is to build a Great Society. Our accomplishments have been many; these tasks remain unfinished: 1) to achieve full employment without inflation; > to

    asked by Jessie
  68. math

    line parellel 4x=3y-13. got an ans of 13/4 but not sure if it's correct.

    asked by Marie
  69. math

    Suppose that P(A)=x.The probability of the complementary event B is 0.7. What is the value of x?

    asked by Anonymous
  70. psychology

    discuss how you percieve your interaction in the social world. Examine one of the social worlds in which you interact for example nfamily nlife or nwork.How has this changed or supported your own self efficacy.

    asked by sarah
  71. Miceoecon

    Cell phones have become very popular. At the same time, new technology has made them less expensive to produce. Assuming that the technological advance caused cost curves to shift downward at the same time that demand was shifting to the right, draw a

    asked by MICHELLE
  72. algebra

    solve for time S=-10t^2+6t+50

    asked by Chrystel
  73. Miceoecon

    Which of the following are examples of Pareto-efficient changes? Explain your answers. a. Cindy trades her laptop computer to Bob for his old car. b. Competition is introduced into the electric industry, and electricity rates drop. A study shows that

    asked by MICHELLE
  74. Miceoecon

    Suppose two passengers end up with a reservation for the last seat on a train from San Francisco to Los Angeles. Two alternatives are proposed: a. Toss a coin b. Sell the ticket to the highest bidder Compare the two options from the standpoint of

    asked by MICHELLE
  75. Math

    4a^3n^6+a(a^3n)^6+4(an^2)^3 Please help me simplify!!!!!!

    asked by Gaby
  76. Environmental Science

    microorganisms can't break down plastics because... I'm stuck between a) plastics are made from oil d) plastics don't occur in nature. Both of them are true, but I'm not sure which is the most true.

    asked by Jaz
  77. Chemistry

    If the molecular mass for a chemical is 153.82 g/mol and the enthalpy of formation is -135 kJ/mol, the heat change will be _____ kJ when 10.0 g of this chemical is formed.

    asked by Stuck
  78. Chemistry

    N2H4(g) + H2(g) 2 NH3(g) H1 = –1876 kJ 3 H2(g) + N2(g) 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g) + N2(g) N2H4(g) will be _____ kJ/mol.

    asked by Cuukoo
  79. Earth science project

    How do lost pet/pet ads predict earthquakes, procedure to do the project ?

    asked by Sabrina
  80. college math

    An individualpurchaseda4-year, $10,000 promissorynotewithaninterestrateof8.5%/ year compoundedsemiannually.Howmuchdidthe note cost?

    asked by Anonymous
  81. English

    Thank you for your last corrections! Can you help me check these sentences, too? 1) For lunch I went to my parents' house (or is it better: I had lunch at my parents' house?) 2) For the rest of my holiday(S) I did my homework (or I spent the rest of my

    asked by Franco
  82. e-commerce

    utilizing the framework of a market opportunity analysis, describe step to ensure success with the extension of the business

    asked by mary
  83. accounting

    suppose that you are a manager in a general hospital.list some of the cost information that you might want to know about and have reported to you.plz help me solving this activity

    asked by summan
  84. computers

    The President of the Company has asked you to replace the computers in every department. The researched information must be presented in this format: A memo to the president stating the need to replace the computers. An Excel spreadsheet comparing three

    asked by lasandra
  85. maths

    If two planes leave the same airport at 1:00 PM, how many miles apart will they be at 3:00 PM if one travels directly north at 150 mph and the other travels directly west at 200 mph? ( please help me with the working thanks )

    asked by thommini
  86. chemistry

    Convert 12 fluid ounces liters. (1 fl. oz = 29.57 cm^3)

    asked by Jack
  87. Math-SPSS

    hello! i need some help urgent! does anyone know how to work with SPSS? we need to calcualte the frequency of the most and least used language learning strategies in correlation with grade.any help?

    asked by swen
  88. chemistry

    How many carbon atoms are there in 150.0 g Glucose? (Glucose is C6H12O6, molar mass = 180.16 g/mol)

    asked by Jack
  89. chemistry

    If a hydrate of the formula decomposes when heated to produce HCl, what change would you expect to occur when a piece of blue litmus paper is held in the path of the vapor released? [Litmus paper is paper impregnated with an acid-base indicator that is

    asked by David
  90. viking age

    who are the vikings and what are their daily life, thank you

    asked by lily
  91. Finance

    difference between cash flow statement and fund flow statement

    asked by Anonymous
  92. Environmental Science

    Does anyone know where I can find information on camparing the use of Malathion to the risk of contracting the West Nile Virus? I have to explain my vote and consider any relevant political, social and economical aspects. Just having trouble finding

    asked by stephanie
  93. chemistry

    # Now look at the piece of paper. Using your knowledge of atoms from the Nuclear unit, * Describe two differences in the physical properties of water and the piece of paper. * Describe reasons the paper's physical properties are different from the water's

    asked by Anonymous
  94. health

    I know your not doctors here but...Can you help me to under stand the difference between vascular Dementia and other types of dementia?

    asked by lois
  95. math

    Michel's class had 4 A's, 10B's, 13C's, 8D's, and 2F's What is the ratio of A's to B's and what is the ratio of f's to total students.

    asked by Anonymous
  96. math

    Make up a story problem that fits the following division of fractions problem. Use a drawing and/or explain a model to help students understand how the division concept a;;lies to a situation involving fractions. 5/6 divided by 1/2 = 1 2/3

    asked by Anonymous
  97. intermediate algebra

    1.(5,1)is a solution to the equation2x-3y=7.what does this mean? 2.(-3,_)ia solution of =4-3x

    asked by keke
  98. math

    mr. murphy's will: john murphy was a man with a loving family, a successful career and considerable wialth. one day, upon his realizing hthat he was approaching retirement age, he decided to write up his will. shortyly thereaftr he died. Under the terms of

    asked by joshua
  99. philosophy

    Write a persuasive, formal letter to aspecific European philosopher. The assignment should be between 700-1050Words. · In the letter,argue that this philosopher is incorrect in his or her view about a particularissue. · Providesupport from your readings,

    asked by trudy
  100. Pre-Cal

    Find all the solutions of the equation in the interval (0,2pip) sin(x + pi/6) - sin(x -pi/6) = 1/2 I am only stuck on the last part. I have 2sinx(sqrt3/2) = 1/2 Does the 2 cancel out with the sqrt 3/2. I am not sure what to do.

    asked by Abby
  101. College Physics

    An 0.10 kg object is hanging from your rearview mirror. While you are accelerating 4.0 m/s2 the string makes an angle with the vertical. There is a weight force going down and tension force along the string. What is the tension force and the angle?

    asked by Anonymous
  102. Communication Language Studies

    I need to figure out the original words/phrases from the following malapropisms: Any ideas? Thanks! For all intensive purposes A blessing in the skies Spitting image

    asked by Audrey
  103. Organic chem

    I just need some clarification regarding SN1 reactions Okay...so a reaction with a secondary ALKYL HALiDE + CH3OH (Methanal), why is the nucleophile CH3O? why doesn't it dissociate to give CH3 and OH?

    asked by Kim
  104. math - 5th grade

    Hello: I am having difficulty witht the following math: Question #1 If the area of a circle is 27 sq. in. What is the radius? I am coming up with an answer of 13.5 sq. in. Is that correct? If not, can you show me step by step how to get the answer?

    asked by Sylvie
  105. Pre-Cal(Urgent!!)

    Find all the solutions of the equation in the interval (0,2pip) sin(x + pi/6) - sin(x -pi/6) = 1/2 I am only stuck on the last part. I have 2sinx(sqrt3/2) = 1/2 Does the 2 cancel out with the sqrt 3/2. I am not sure what to do.

    asked by Abby
  106. English III

    How to write a thesis statment?

    asked by Leggette
  107. Biology

    19. Which is NOT a general characteristic of plants? a. use oxygen to make usable energy b. primary producers c. have specialized cells d. cell walls composed of cellulose I think it might be either A or B... 24. During initial HIV infection, the HIV virus

    asked by mysterychicken
  108. Math

    assume that the speed of automobiles on an expressway during rush hour is normally distributed with a mean of 62 mph and standard deviation of 5 mph. What percent of cars are traveling faster than 62 mph? How would I work this problem out?? Thanks for any

    asked by Bianca
  109. Biology

    41. A group calling itself "Virus Alive!" believes that viruses are living organisms. They have petitioned the scientific community to include viruses in the biological classification system. You are a scientist assigned to explain to this group that,

    asked by mysterychicken
  110. math

    Why does 1/8cos(2y+6) become 1/8cos(arcsinx/4)?

    asked by Aleks
  111. Project on Marian Anderson

    Ok.. we are doing a project on the 6 principles of Karma(which I will list), and we have to find examples of these karmas from Marian's biography. We have to have 6 examples of each with cause and effect. I have a few so far but can you see if they are

    asked by Rae Rae
  112. math .... mad HARD

    a football stadium seats 60,000 fans.about 1/4 of the fans pay $100.00 per ticket,1/2 of the fans pay $70.00 per ticket, and the remainder pay about $40.00 per ticket.about how much money will the team collect on a day when there is a full house at the

    asked by jafranny
  113. Math

    The sides of a triangle are x, y, and sqrt(x^2+xy+y^2. Determine the Largest Angle.

    asked by MonkeyDolittle
  114. chemistry

    Bromine can be added to limonene to created a brominated compound. The balance equation is shown below. When 613 mg of limonene and 3.5 ml of a 10% (v/v) solution of Br2 in dicholomethane (a solvent) are combined, 959 mg of the product is isokated.

    asked by bk
  115. Chemistry

    What is the density of an aqueous solution of potassiu nitrate that has normal boiling point of 103 celsius and an osmotic pressure of 122 atm at 25 celsius?

    asked by Anmol
  116. Math-Geometry

    I'm having trouble with these two questions about slopes and equation of a line: (A)-Find the slope of each segment (B)-Write an equation of the line that is determined by each pair of points 1. (0,0) and (6,-4) 2. (-3,2) and (7,-4) Thank you!

    asked by Sammi
  117. statistics

    How do you know the p-value on megastat. On minitab It looks like it gets a different p-value than megastat. I got a number from megastat of 2.35E10 and on minitab it was 0.000.

    asked by mark
  118. math stuck

    3/10 + 1/5 = 9/30 + 6/30 = 15/30 but it says that it is 0, or 1

    asked by Anonymous
  119. science

    what is a science

    asked by mohsin
  120. chemistry

    a known density for a liquid is 1.5 g/ml how many ml will 500 grams of this liquid occupy

    asked by amanda
  121. chemistry

    How does the voltage of a galvanic cell change, when there is a precipitate in the solution?

    asked by LALA
  122. Chemistry

    Palladium crystallizes with a face-centered cubic structure. It has a density of 12.0 , a radius of 138 , and a molar mass of 106.42. What is Avogardo's number?

    asked by Amanda
  123. Chemistry

    The density of an unknown metal is 1.55 and its atomic radius is 0.197 . It has a face-centered cubic lattice. What is the atomic weight of this metal?

    asked by Amanda
  124. AP world history

    Analyze the responses to the spread of Buddhism in china... i don't know how to do this essay.. its a DBQ

    asked by Jing
  125. Chemistry

    How do i calculate the amount of heat required to raise the temperature of an 89 sample of water from 40 to 60.

    asked by Kesha