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Questions Asked on
March 13, 2009

  1. physics

    A concave mirror forms a real image at 17.0 cm from the mirror surface along the principal axis. If the corresponding object is at ta distance of 36.0 cm, what isi the mirror's focal length? let u be the object distance let v be the image distance v=17 cm

    asked by physics

  2. psychology

    1. The experimental rats were being raised in separate environments. One group lived in the traditional cage in a quiet, but well lighted room. They were supplied with plenty of food and water. The second group inhabited "Rat Disney Land." There were

    asked by shawn

  3. Literature / Short story I

    1. During what part of “Bernice Bobs Her Hair” does Bernice cut Marjorie’s braids? A. Climax C. Falling action B. Rising action D. Epiphany 2. The label detective novel is an example of A. a character study. C. a genre. B. informational reading. D. a

    asked by Brittany

  5. physics

    please check these: A concave mirror with a focal length of 10.0 cm creates a real image 30.0 cm away on its principal axis. How far from the mirror is the corresponding object? a. 20cm b. 15cm c. 7.5cm d. 5.0cm B A diffraction grating that contains 650

    asked by physics

  6. Calculus

    I wanted to confirm that I solved these problems correctly (we had to convert the polar curves to Cartesian equations). 1.rcos(theta)=1 x=1 2.r=2*sin(theta)+2*cos(theta) r^2=2rsin(theta)+2rcos(theta) x^2+y^2=2y+2x (a little unsure what do next if this is

    asked by Joshua

  7. Calculus

    Given the equation xy = 2, set up an integral to find the length of path from x = a to x = b and enter the integrand below. I did the integral from b to a and set it equal to the sqrt(1+4/x^4), because I found y to equal 2/x and the derivative to be

    asked by Katelyn

  8. chem

    how would I do the elimination reaction of 2-chloropentane. When I figured it out I got the products as being 1-pentene and hydrogen chloride. Is this correct?

    asked by Lena

  10. algebra 2

    how do i put x^4 + 5x^2 -8 into quadratic form?

    asked by misty

  11. Chemistry

    A 0.1300 g iron ore sample was dissolved in hydrochloric acid and the iron was obtained as Fe2+(aq). The iron solution was titrated with Ce4+ solution according to the balanced chemical reaction shown below. After calculation, it was found that 0.0259 g of

    asked by Bob

  12. math

    a man is 6ft tall and he casts a shadow of 5 ft, if a tree casts a 30ft shadow, how tall is the tree?

    asked by fred

  13. physics

    If you stand 3.0 m in front of a flat mirror, how far away from you would yourimage be in the mirror? 6.0 m If light waves are coherent, a. they shift over time b. their intensity is less than that of incoherent light c. they remain in phase d. they have

    asked by physics

  15. calculus

    The function 9x+3x^-1 has one local minimum x=?? and one local maximum x=??.

    asked by mkcolema

  16. algebra

    Permutation For the lunch special, you can choose an entrée, a drink, and one side dish. How many meal choices are there

    asked by jaz

  17. math-calc

    Consider the function f(x)= (2x+8)/(6x+3). For this function there are two important intervals: (-inf, A) (A, inf) and where the function is not defined at A . Find A For each of the following intervals, tell whether is increasing (type in INC) or

    asked by mkcolema

  18. math

    Jen wants to enlarge a 4 inch by 6 inch photo so that the longer side will be 14 in, how long will the shorter side be?

    asked by fred

  20. accounting

    Why should an auditor make decisions in the public interest rather than in the interest of management? This is what I have so far. What else can I use? They are made in the interest of all current and potential (public) shareholders.... if a company makes

    asked by Anonymous

  21. Physics

    As the distance between two masses increases, the gravitational force of attraction between them Decreases Increases remains the same

    asked by Jill

  22. Romeo and Juliet Help (24 hours and no response)

    I posted questions yesterday and it's on the next page. Could you please check them and get back with me thanks.

    asked by lala

  23. chem

    for the equation: propane + bromine how do I know on which carbon the Br would attatch itself to.

    asked by Lena

  25. chem

    Why do we use excess reactants in a chemical reaction? Why are percent yields usually less than 100%? Is it because we want to maximize the amount of products produced, and reactions usually end up in a loss of reactants to the air, etc?

    asked by bob

  26. economics marginal cost analysis

    Vaska Electronics has discovered a theft problem at its warehouse and has decided to hire some security guards. The following table shows the number of security guards and the amount of theft per week: (#of security guards)(#of stolen radios) 0 50 1 30 2

    asked by b182

  27. science

    Bacterial action purifies water in lakes, streams, oceans, and BLANK? The options are in the air, deep underground, in the first couple inches of soil, or on the surface of the ground? thanks for your explanation :-)

    asked by Nikkie

  28. stats

    Violence in School, I An SRS of 400 American adults is asked “What do you think is the most serious problem facing our schools?” Suppose that in fact 40% of all adults would answer “violence” if asked this question. The proportion p of the sample

    asked by jaz

  30. literature

    Your strategy meeting with the project managers was very efficient. They have asked if you would be able to take part in the creation of the presentation itself. In working with the head project manager, you decide that you will create the first portion of

    asked by donna

  31. math problem

    64. Commuting Students. At a well known university, ¼ of the undergraduate students commute, and 1/3 of graduate students commute. One-tenth of the undergraduate students drive more than 40 miles daily, and 1/6 of the graduate students drive more than 40

    asked by Debbie

  32. It's been more than 24 hours and no answer...

    A translation has this rule:(x-5,y). Fill in the answers This translation is (how many) Units (in what direction)

    asked by Brian

  33. physics

    is this done correctly? A step-down transformer has 16000 turns on the primary and 95 turns on the secondary. If the rms emf across the secondary coil is 120 V, what is the maximum emf across the primary coil? Np=16000 Ns=95 turns Vs=120V Vp=? Ns Vs ___ =

    asked by physics

  35. statistics

    hi,what a great site ! i've been asked to write a report about (data display),dont know what to do, please help, thanks in advance.

    asked by Hani

  36. English

    "Without undervaluing any other human agency, it may be safely affirmed that the Common School, improved and energized, as it can easily be, may become the most effective and benignant of all the forces of civilization."(Horace Mann) I know what Mann is

    asked by Lou

  37. math-calc

    for x (-12, 10) the function f is defined: f(x)=x^7(x+2)^2 On which two intervals is the function increasing (enter intervals in ascending order)? Find the region in which the function is positive Where does the function achieve its minimum?

    asked by mkcolema

  38. english

    can someone help me analyze this poem The Hair: Jacob Korman's Story Ten kilometers from Warsaw, I arrived in Rembertow where hundreds of Jews had lived until the wheel turned: Judenrein. You think they let themselves be taken? They would not fill the

    asked by nathan

  40. Healthcare

    I need some help with what are some of the implications to health care providers in African American and Caucasian? Considering cultural views on the health as organic, health as harmony and disease as a curse or stigma

    asked by kia

  41. English

    I have been search online for sources that will help me understand the text of Report of the Massachusetts board of education by Horace Mann better , but I found absolutely nothing. I am looking something that will give me a summary or help me know that I

    asked by Lou

  42. Chemistry

    I'm having alot of trouble in chemistry. Currently were studying chemical equations and reactions. I would like to know if this is a single or double replacement reaction. 2Li + H2O ---> 2LiOH + H2

    asked by Alexandria

  43. algebra 2

    if g(x) = 2x+1 find g[g(x)]

    asked by misty

  45. SAT Essay

    Reposting. Think carefully about the issue presented in the following excerpt and the assignment below. The history of human achievement is filled with stories of people who persevere, refusing to give up in the struggle to meet their goals. Artists and

    asked by Sahil

  46. ENGLISH

    I KNOW THE ANSWER JUST NEED HELP WITH RATIONALE 1A.Did you know a famous animal-rights activist has criticized horseracing because of the dangers involved? 1b. Did you know a famous animal-rights activist have criticized horseracing because of the dangers

    asked by TERRIA

  47. geology

    is this ok? harry hess studied the arced chains of islands with active volcanoes. in 1953 he discovered the great global rift. he is also know for his theriores on the sea floor spreading. alfred Wegener. alfred is remembered by his theory of the

    asked by scooby91320002

  48. math

    What is the slope of the line whose equation is 3x-4y-16=0 a 3/4 b 4/3 c -4 d 3

    asked by Anonymous

  50. geology(science) am i correct

    Respond to the following scenario: o Your younger brother is in 5th grade. He comes home and tells you to look at an animation his teacher showed him in geology class. o Review the Continents of the Past animation on this week¡¦s aXcess page. o After

    asked by scooby91320002

  51. Algebra

    Given the function f described by f(x)=+10, Find each of the following f(0)= Given the function h described by h(x)=9x,find each of the following a) h(-15) b) h(11) c) h(34) ---------- h(-15)

    asked by Shawna

  52. Algebra

    Can somebody help me please? As you are leaving the community, you notice another new community just down the street. Because you are in the area, you decide to inquire about it. a.) The sales rep. here tells you they also have two floor plans available,

    asked by A.W.

  53. accounting

    Can anyone help me with this? What was the prime motivation behind the decisions of Arthur Andersen’s audit partners on the Enron, WorldCom, Waste Management, and Sunbeam audits: the public interest or something else?

    asked by tim

  55. 1st grade

    Is this sentence correct Breakfast Is Served Between 6:30 AM & 10:30 AM

    asked by Maddy

  56. KC

    Is anyone aware of some good links to sites which discuss and explain G-Force? I've searched but haven't come up with anything very worthwhile.Something with practice problems would be great. Thanks!

    asked by Physics

  57. geology(science) am i right?

    Respond to the following scenario: o Your younger brother is in 5th grade. He comes home and tells you to look at an animation his teacher showed him in geology class. o Review the Continents of the Past animation on this week¡¦s aXcess page. o After

    asked by scooby91320002

  58. Re teachers year 8 Re

    i need some help badly. i am learning about the 12 disciples of Jesus.i know the names but i need to write a sentence about each disciple and im not sure what to write. ive looked on google and on different websites but i am still struggling. i would be

    asked by freya

  60. BIOLOGY

    What are the differences between the effects on excessively high, cool, and freezing temperatures on a living organism as compared with an enzyme? What is the significance of these differences?

    asked by cubanita

  61. sports

    why is strenght endurance speed flexibility body composition agility balance co-ordination power reaction time all important to an athlete

    asked by elizabeth

  62. Maths

    How do you solve 1/2x^2 - x + 4 ?

    asked by Gambler

  63. physics

    please check this one question: Which interaction of nature binds atoms and molecules by attracting unlike charges and repulsing like charges? a. strong b. weak c. electromagnetic d. gravitational A

    asked by physics

  65. sci.

    How do you rank water in terms of density (solid liquid and gas)? (from least to greatest). I think it would be gas, solid, and liquid, but I just wanted to confirm this thanks

    asked by Thalia

  66. math-calc

    A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y+1-x^2. What are the dimensions of such a rectangle with the greatest possible area? width? height?

    asked by mkcolema

  67. English

    1. I will bring you it. 2. I will bring it for you. 3. I will bring it you. (Among the three is only #2 correct?) 4. He looks like a mad man. 5. That sounded like a lion. 6. He felt like a healthy man. 7. The fish smelled like a bad vegetable. 8. The bread

    asked by John

  68. Poem

    I wrote this poem and was wondering if someone could please edit it for me...thanks a million for the help =] In my dreams, creeps up a guy, Mysterious he is; as I know him not. He smiles and I gaze-with a heartfelt sigh, Daydreaming often of a true love

    asked by mysterychicken

  70. Financing and Budget

    If an employer fails to pay state employment taxes on a timely basis, the rate on FUTA taxes will A.remain the same B.be lower C.increase by 100% D. increase I picked C can someone check my answer.

    asked by Cynthia

  71. critical thinking

    The philosophers described above make which of the following assumptions about philosophy as a scholarly discipline?

    asked by Anonymous

  72. french

    is this written correctly? question: A qui est ce cahier, cette chaussure at ce gant? answer: Ces choses-l¨¤ sont ¨¤ moi.

    asked by Angie

  73. English

    1. I will buy Mom a scarf for her birthday. (What is the part of speech of 'for her birthday'? Is it an adjective phrase modifying 'scarf', or is it an adverbial phrase modifying 'buy'? 2. Look at the little boy. (What is a little boy? A young boy or a

    asked by John

  75. chem

    how do you balance Al +Cl2-->Al+3 +Cl- 2 is a little subscript in the corner in the bottom. +3 and - go on the top corner. my teacher got 2Al + 3Cl2 --> 2Al+3 + 6Cl- where does the 2 and the three come from

    asked by jen

  76. Science

    The label on a fertilizer says "ammonium phosphate, muriate of potash, sulfate of potash, and manganese oxide." Is this a mixture, solution or a compound? I don't think it could be a solution, but I'm not sure if it'd be a mixture or a compound-Thank you.

    asked by Sarita

  77. Reading

    What stinks when alive but smells good when dead?

    asked by Samantha

  78. math-calc

    f(x)=3-3x^2 -3

    asked by mkcolema

  80. English

    1. He inquired of me a question. = He inquired of a question of me. (Are both the same and grammatical?) 3. He chose me a chestnut. He chose a chestnut for me. 4. He found me a good library. He found a good library for me. 5. He left me a persimmon. He

    asked by John

  81. algebra 2

    what are the rational zeros of x^3 - x^2 - 10x -8 = 0

    asked by misty

  82. algebra

    What is this called? If a>b and b>c, then a>c

    asked by Arissa

  83. math-calc

    f(x)=(5x-4)e^2x How do you find the one critical number??

    asked by mkcolema

  85. Literacy

    Around what time period was it in the chronicles of Narnia?

    asked by Angie

  86. 1st grade

    what has 4 sides and 3 vertices?

    asked by genna

  87. math-calc

    f(x)=2x^3-36x^2+162x-6 small critical number? Large critical number?

    asked by mkcolema

  88. Business Law

    one o the larger problems in doing business over the web is assuring electronic signatures. What are a few ways e-signatures might be more reliably authenticated?

    asked by jack

  90. Great Depression

    Can someone find me sources for Involvement Cause of the great depression. I found some but they are not enough.

    asked by Chopsticks

  91. drwls + Ms Sue geog yr 8

    thanks so much to both of you for finding the websites they have helped alot.:)

    asked by misha

  92. 9th grade

    what are energy bar graphs?

    asked by shana

  93. Math

    how do you factor y^4-1 completely?

    asked by Angie

  95. math

    what is a interval

    asked by kaitlyn

  96. algebra 2

    what are the rational zeros of x^3 - 12x - 16

    asked by misty
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