Questions Asked on
November 21, 2007

  1. physics

    What average force is required to stop an 1100-kg car in 8.0 s if it is traveling at 95 km/h? i got the answer to be 13062.5 N. i don't think that's right...

    asked by beckii
  2. math

    use 6 of the digits from 1 to 9 to make each number. use each digit only once the greatest possible number with 3 ten thousands ( I don't get this one at all)

    asked by Jill
  3. english

    what is the authors purpose in writing othello?

    asked by Tylor
  4. mgt210

    promotion into supervision think about roy's personal attributes and goals and about how he might appy those abilities and reach those goals as a supervisor

    asked by connie
  5. Math - Solving Trig Equations

    Solve each equation for 0 is less than and equal to "x" is less than and equal to 360 3sinx = 2cos^{2}x ----- I don't know how to solve this equation...this is what I have, but I don't know if I'm on the right track or not 3sinx = 1 - 2sin^{2}x 3sinx - 1 +

    asked by Anonymous
  6. Physics

    A 5.0-kg box at the top of a 400cm ramp slides down 200 cm. How much gravitational potential energy was lost as the box slides from the top of the ramp to the 200 cm mark of the ramp? A cheerleader is thrown vertically upward into the air. As the

    asked by Alex
  7. chemistry

    A 48.0-g sample of an element has the same number of atoms as 6.00 g Na. What is the element?

    asked by Meg
  8. science

    can you please help me put these events in order from latest to earliest?: -pangea, the supercontinent, begins to divide -trilobites -dinosaur extinction -first crocodiles -archaeopteryx (early bird) -first flowering plants -protozoa (single-celled,

    asked by jenni
  9. Math - Solving Trig Equations

    Solve each equation on the interval: 0 is less than and equal to theta is less than and equal to 360 -- 2sin2x = 1 -- --- My Answers: Let y represent 2x 2siny = 1 2siny/2 = 1/2 siny = 1/2 y = sin^-1(1/2) y = 30 2x = 30 2x/2 = 30/2 x = 15 (Quadrant 1)

    asked by Anonymous
  10. Math Calculus

    Hi, can anyone please help me solving these problems? any help will be greatly appreciated 1-If a tank holds 1000L of water, which takes an hour to drain from the bottom in the tank, then the volume V of water remaining in the tank after t minutes is

    asked by Tyler
  11. science - need help

    a strip of silver does not react with any of the solutions tested what must be true about silver the solutions are: lead acetate zince sulfate and copper sulfate

    asked by sam
  12. maths pls help

    1. Solve the following simultaneous equations: log2 xy = 7 log2 (x^2/y) = 5 2. If log y x =a and log z x=b where x is not equal to 1, express the following in terms of a and b: logy (yz) Solve the following simultaneous equations: y = 2 log3 x y+1 = log3

    asked by Claire
  13. physics

    An airplane is doing a vertical loop in the air. The airplane goes at a velocity of 320 and at the top of the loop, n=500N. The pilot weighs 62kg. calc the radius of the loop vertical loop, given: v=320, n at the top=510N, m=62kg i don't know what eqn i

    asked by Jonny
  14. Julius caesar

    I don't understand these questions please help!! 1. A. What traits does Caesar object to in Cassius? (Act 2, Scene 2, Lines 192-214) B. Why might Caesar object to these traits? What about them seems dangerous to him?

    asked by Shelby
  15. Chemistry

    what is theoxidation state of sulfur in Fe2(SO4)3?

    asked by Anonymous
  16. geometry

    given:m//n & g//h Prove angle 4 is congrunt to angle 16. I have no idea how to do proofs..my teacher is really bad at explaining things.

    asked by katie
  17. ACS

    Whatis the molarity of an HCl solution if 25mL of this solution require 19.58mL of 0.1062M Sr(OH)2 solution for complete reaction? The reaction is give below Sr(OH)2 + 2HCl --> SrCl2 + 2H2O

    asked by Debro
  18. physics

    An airplane is doing a vertical loop in the air. The airplane goes at a velocity of 320 and at the top of the loop, n=500N. The pilot weighs 62kg. calc the radius of the loop vertical loop, given: v=320, n at the top=510N, m=62kg i don't know what eqn i

    asked by Jonny
  19. 333

    CoCl2+NaOH =

    asked by Anonymous
  20. physics

    What change in temperature occurs in order to increase the volume of 16 L of ethyl alcohol to 17 L? a)56.8*C b)1450*C c)53.5*C d) 90*C I can't seem to get one of the answers. I used the equation (change in volume)=beta(initial volume)(change of time). 1

    asked by Anonymous
  21. Early Child Ed.

    Would you please make sure that I have chosen the best possible answer for each question? 1. In which one of the following teaching approaches does the teacher make all the decisions regarding what,how,and when the students perform? A. Direct B. Indirect

    asked by Ms. Sue-- This is for You-- Please Check!!
  22. Geometry Proofs HELP!!

    how do i do this? given: m//n g//h Prove: angle 4 congruent to angle 16

    asked by Katherine
  23. physics: BOB or DRWLS follow up question

    What average force is required to stop an 1100-kg car in 8.0 s if it is traveling at 95 km/h? i understand what you both did, but why can't you use the V = Vo + at equation and solve for acceleration there and use that in the EF = ma equation?

    asked by beckii
  24. English

    How does an individual struggle to gain freedom against the restraints of society? How should I answer this essay question? Could you direct me on how to answer this essay question? I was thinking about how individuals rebel against society to gain

    asked by Rex
  25. math

    use 6 of the digits from 1 to 9 to make each number. use each digit only once. the least possible odd number

    asked by Jill
  26. Algebra

    Measure the height of your computer monitor to the nearest tenth of a centimeter or sixteenth of an inch. Measure the width of your monitor as well. Use the Pythagorean Theorem to find the length of the diagonal of your monitor. How do I measure it the the

    asked by Alicia
  27. SOCIAL STUDIES

    I need help on social studies about ancient rome

    asked by hALIE
  28. Economics

    I know the Fed uses four tools to influence/or control the money supply of the U.S. 1. Feds Fund rates 2. Open Market 3. Reserve requirements 4. Discount rate Can someone please explain what they are and how the fed uses them. I have a test waiting for me

    asked by Julie
  29. English - Need Clarification on Two Words

    What does it mean to be an individual? (This is what I think, you have you're own identity, but I need to expand more and I can't think of anything...) I'm basically asking, what does it take to be an individual? What does it mean to have freedom? (I think

    asked by Anonymous
  30. French-SraJMcGin

    Did I translate these two sentences correctly? (please forgive my accents)I know the words that I need, but I am not sure how's the ordering in the sentence. What days do you have your french class? = Quel jours tu as un cours de francais? I have french

    asked by Miche
  31. science

    Metals like platinum and gold are often said to be inactive. What does this mean My answer they do not react with other elements is this correct

    asked by sam
  32. chem

    Commerical hydrochloric acid is 37% by mass HCl and has a solution density of 1.18g/mL. What minimum volume of hydrocloric acid is needed to dissolve 16g Al. The balanced equation is 2Al + 6Hcl --> 2AlCl3 + 3H2

    asked by Anonymous
  33. algebra

    A tennis club offers two payment options: Option1: $35 monthly fee plus $4/hour for court rental Option 2: No monthly fee but $6.50/hour for court rental. Let x = hours per month of court rental time. a) Write a mathematical model representing the total

    asked by Patrick
  34. Sport - Football

    In FLAG FOOTBALL, how many players are allowed on the field at one time and what are their positions' names? Please help, I'm in Australia and Football just ain't as big as it is in some other countries.

    asked by xX_Supaman_Xx
  35. Calculus

    Use the given information to find the cos (2,0), csc q = 5/3, q lies in n quadrant II How would I go about doing this

    asked by Kelly
  36. thanksgiving

    The Thanksgiving Day is coming. Do you have some ideas about it? For western people, it is more important than us Asian. But this kind of custom influences us gradually. So, this Thanksgiving Day I want to send some interesting gifts to my families,

    asked by Kim
  37. math

    use 6 of the digits from 1 to 9 to make each number. use each digit only once. a) the greatest possible even number

    asked by Jill
  38. English

    Sorry I get confuse, the text is this: Chinese new year Chinese people celebrate new year in the first new moon of Febraury,it changes every year, it takes two weeks, from the new moon to the full moon, people wear red clothes in new year, they bring good

    asked by Kate
  39. science

    what are the five groups of vertrbats?

    asked by nicholas
  40. Alebra

    I have this math project and I'm stumped on this word problem. Any point in the right direction would be greatly appreciated.. A movie theater had a certain number of tickets to give away. Five people got the tickets. The first got one third of the

    asked by Mike
  41. English grammar

    1. Because of the terrible situation, most of the bodies remain openeyed. 2. If you believe in such a probability approaching zero and feel safe, do you think it is right? ------------------------------------- Are the sentences above grammtically correct?

    asked by John
  42. social studies

    U.S.A old diet-food

    asked by Please help me
  43. HUM 130

    Aborigines in Australia and the Kalash Kafir . I need help finding this Why are these groups considered indigenous?

    asked by dawn
  44. Psychology

    Is there a strong connection between our mood and our senses? Has there been science esearch to support or disprove this notion?

    asked by Christian
  45. english

    Is this text correct? Chinese new year The chinese people celebrate new years eve in the first new moon of Febraury,it changes every year, it takes two weeks, from the new moon to the full moon, people wear red clothes in new year, they bring good luck in

    asked by Kate
  46. Grammar

    This question has been bothering me. Is twenty five proper or twenty-five?

    asked by Annie
  47. English/History

    "The photographs which the man brought showing bridges and cities, trains, boats, big buildings, were not impressive to us...Having had no experience with the diminished scale of things in a photograph, we gained no magnitude." Does this sentence say that

    asked by jAcKiE
  48. NUTRITION

    WHICH IS THE MOST COMMON FOOD IN USA?

    asked by Please help me
  49. science

    what experiment could you perform in order to determine if iron is more active than copper? My answer: use a group of of the smae substances and test both of them in each substance separately and observe the changes in the iron nad copper

    asked by sam
  50. English Expressions

    What is the meaning of "I am how I am."? Is it the same as "I existed of itself."?

    asked by John
  51. human resources

    what are the pros and cons for combination incentive plans?

    asked by mary
  52. arguments

    should pupils have homework

    asked by terenci
  53. skwl quiz

    which county, in england, has there been an outbreak of bird flu, THIS WEEK?

    asked by !!ezr!!
  54. please help

    When is noble-case corruption, such as the Dirty Harry problem, justifiable? Do you agree that law enforcement should use extreme means to catch criminals?

    asked by chel
  55. Geometry. somebody pplease help!

    how do i do this? given: m//n g//h Prove: angle 4 congruent to angle 16

    asked by Katie
  56. Proofs HELP

    this has the same layout of my last question but the given is an angle not a line. Given:angle 2 and 3 are supplementary and angle 6and 10 are congruent. prove:m//n

    asked by katie
  57. math in general

    what is the point of proofs?

    asked by Kevin
  58. algebra

    I need help with: solving and check for extraneous solutions. sqrt y+9=1

    asked by curtisgurl
  59. history

    i have to make a newspaper around the year 1830. Where can I go to find accurate free info about "NEWS" in that time period?

    asked by ama
  60. physical science

    How do you calculate the heat generated from dropping a metal ball from heights?

    asked by Scott
  61. skills for learning in an information age

    why is it important to use inclusive language when communicating?

    asked by carol
  62. pre-algebra

    What is the prime factorization of 24asquaredb?

    asked by Tabby
  63. Geometry

    determine whether the side through the points (2, 3) and (11, 6) is perpendicular to the side through the points (2, 3) and (_3, 18).

    asked by Ala
  64. english

    does anyone know what the book" the fugitive" is about?

    asked by Stephanie
  65. history

    according to the myans, when is the world schedueled to end

    asked by Connor
  66. Algebra..Heeelp please!

    Need assistance on this word problem... Singer I.M. Great publicly promised each of her fans an autographed photo of herself. The response was bigger than expected: all 220,000,000 people in the U.S. wrote for a picture(even her own brother). Calculate the

    asked by john
  67. dr bob

    dr bob - when you say plates out can I use the word reacts instead?

    asked by sam