Questions Asked on
June 15, 2009

  1. Physics

    A giant swing at a county fair consists of a vertical central shaft with a number of horizontal arms attahed at its upper end. Each arm supports a seat suspended from a 5.00 m long rod, the upper end of which is fastened to the arm at a point 3.00 m from

    asked by Sarah
  2. Physics

    A bowling ball weighing 71.2 N is attached to the ceiling by a 3.80 m rope. The ball is pulled to one side and released; it then swings back and forth like a pedulum. as the rope swings through its lowest point, the speed of the bowling ball is measured at

    asked by Sarah
  3. Sarah

    A light spring having a force constat of 125 N/m is used to pull a 9.50kg sled on a horizontal frixtionless ice rink. If the sled has an acceleration of 2.00 m/s^2, by how much does the spring stretch if it pulls on the sled (a) horizontally, (b) at 30.0

    asked by Physics
  4. economics

    aztec enterprises depends heavily on advertising to sell its products. management at aztec is allowed to spend $2million monthly on advertising, but no more than this amount. each month, aztec spends exactly $2million on advertising. what is aztec's

    asked by mark
  5. irrational numbers?!

    what are rational and irrational numbers?? i know that irrational numbers are numbers that cannot be expressed as a fraction, but i'm still confused. there is this question: which of the following are irrational numbers: √2, √8, 22/7, pi, 2√3 i know

    asked by Sanchia
  6. Science

    When 1 gram of liquid water at 0 degrees Celsius freezes to form ice, how many total calories of heat are lost by the water and how do you know? a. 1 b. 0.5 c. 80 d. 540

    asked by Angie
  7. Physics

    how many kilometers would you have to go above the surface of the earth for your weight to decrease to half of what it was at the surface? I know that the mass of earth is 5.97 x 10^24 kg do i have to convert it to km ??

    asked by Sarah
  8. college aLGEBRA

    1. A toy manufactor needs a piece of plastic in the shape of a right triangle with the longer leg 1 cm more than the shorter leg. How long should the sides of the triangle be? a^2+b^2=c^2 x^2+(x+1)^2=(x+2)^2 x^2+x^2+2x+1= x^2+4x+4 2. Martha want to buy a

    asked by Angela---- pLEASE HELP ME
  9. Science

    Approximately what percentage of the estimated age of Earth does the Cenozoic Era represent and how do you know? look at pg. 9 in Earth Science Reference Tables? a. 1.4% b. 5.0% c. 11.9% d. 65.0%

    asked by Angie
  10. Mathematics

    A map drawn to scale of 1:50 000 with the actual distance between two points is 4.5km.Calculate the number of centimetres that should be used to represent this distance on the map.

    asked by Serena
  11. math

    Xavier worked 10 hours on Monday and 15 hours on Wednesday. His total pay was $280.00. What is his rate per hour?

    asked by bill
  12. POLYNOMIALS

    The cubic polynomial f(x) is such that the coefficient of x^3 is -1. and the roots of the equation f(x) = 0 are 1, 2 and k. Given that f(x)has a remainder of 8 when divided by (x-3), find the value of k. okay, this is what i did: -x^3 + bx^2 + cx + d =

    asked by Aoi
  13. Physics

    what is the instantaneous velocity of a free falling object 10s after it is released from a postion of rest? what is its average velocity during this 10s interval? how far will it fall during this time?

    asked by Hillary
  14. English

    1. Why is the Tom taller than Sam? 2. Look at the Tom who is running on the playground. 3. The Tom whom I like is very wealthy. (Are the sentences grammatical? If not, would you correct them? Thank you.)

    asked by John
  15. Science Geology (URGENT)

    WHICH OF THE FOLLIWING BEST DESCRIBES THE FUNDAMENTAL CONCEPT OF SUPERPOSITION 1. Strata with fossils are generally deposited on strata with no fossils 2. older strata generally are deposited on younger strata without intervening,intermediate age strata 3.

    asked by Altagracia
  16. Chemistry

    A two-liter plastic soft drink bottle can withstand a pressure of 5.00 atm. Half a cup (approximately 120mL) of ethyl alcohol, (d=0.789g/mL) is poured into a soft drink bottle at room temperature. The bottle is then heated to 100C (3sig figs), changing the

    asked by Perez
  17. drivers ed

    can someone please tell me a good website or give me a good link where i can take a practice driving test for a permit (learners licence). pleeease, i really need to practice, and i need a test that is updated. close to the real test. please help me

    asked by y912f
  18. history/lit

    The 1920's is associated with the development of many new freedoms; it was a time of restrictions as well. Examine the 18th amendment and prohibition in the 1920's. What was the reasoning and who were the key supporters behind a 'dry' United States?

    asked by mysterychicken
  19. Math

    In a survey of 50 students, 23 owned cellular phones, 18 ownded digital cameras, X owned cellular phones and digital camera, 2X owned neither. a) How do i write an expression in X for the Total number of students in the survey and how do i find for X????

    asked by REBA
  20. spanish

    La familia Díaz viajará por avión a México . No pueden llevar su pero con ellos.

    asked by y912f
  21. The Sociology of Race and Ethnicity

    This is when an oppressor uses race to determine who is and is not privileged. These determinations are made by assigning characteristics to races and dividing them into groups. At minimum, characteristics include physical or cultural traits. This is a

    asked by amy rain
  22. alpha beta identities?

    I read on an assessment book that a^3-b^3 = (a-b)[(a-b)^2-ab] Can someone tell me how is a^3-b^3 converted into (a-b)[(a-b)^2-ab]? Same for this: a^3 + b^3 = (a+b)[(a+b)^2-3ab] how do i get this??

    asked by Aoi
  23. English

    1. Don't play too much computer games. 2. Don't play too many computer games. (Which one is right?)

    asked by John
  24. Advanced Math

    1. The distance s(t) between an object and its starting point is given by the anti derivitive of the velocity function v(t). find the distance between the object and its starting point after 15 sec if v(t)=0.2t^2+2t+10 meters/seconds. MY ANSWER: 600

    asked by Patrick
  25. English

    1. It is about Tom's worries on his height and changes in teenagers' body and mind. 2. It is about Tom's worries about his height and changes in teenagers' body and mind. 3. It is about Tom's worries on his height and changes in teenagers' bodies and

    asked by John
  26. Arithmetic

    Hi, i'm preparing for Olevels and i have some maths questions that i'm not sure how to do, i'd appreciate it if you could help. 1. The numbers 60 and 126, written as products of their prime factors: 60=2^2x3x5 126=2x3^2x7 a)Find the largest integer which

    asked by Terry
  27. medical billing and coding

    How will employees in the medical office have to be trainrd regarding privacy(for example, who is responsible for training and record keeping)? What is required if an employee doesn't follow the privacy policy? When must employees be trained? In what

    asked by betty
  28. French (URGENT)

    You are vacationing in Paris. Describe the Hotel and Restaurant. Can someone please check my work? The atmosphere at L’Atelier de Joël Robuchon is so very different from any other French dining experience. You sit around the kitchen on high stools. Can

    asked by Larry
  29. POLYNOMIALS

    ok, this might be a bit torturous, but if anyone is patient enough and help me with my working, i'd REALLY APPRECIATE IT!!!! Question: The cubic polynomial f(x) is such that the coefficient of x^3 is 1 and the roots of f(x)=0 are 1, k, and k^2. IT is given

    asked by Aoi
  30. Mathematics

    Two readings are taken from an aircraft's flight record Time - 08:55 Distance travelled - 957 Time - 09:07 Distance travelled -1083 For the period of time between the two readings, how do i calculate a)the distance travelled in kilometres and b)the average

    asked by Nick
  31. Physics

    A light spring having a force constat of 125 N/m is used to pull a 9.50kg sled on a horizontal frixtionless ice rink. If the sled has an acceleration of 2.00 m/s^2, by how much does the spring stretch if it pulls on the sled (a) horizontally, (b) at 30.0

    asked by Sarah
  32. Pre Cal

    Solve 4sin^2 x + 4sqrt(2) cos x-6 = 0 for all real values of x. My answer: (pi/4)+2(pi)k, (7pi/4) + 2(pi)k Solve 2cos^2 x-5cosx+2=0 for principal values of x. My answer: 60 and 300 degrees

    asked by Danny
  33. English

    1. I grew 3 cm a year. 2. I grew by 3 cm a year. (Does #1 mean #2? Is 'by' omitted before 3 cm? Then 'grew' is an intransitive verb. If not, 'grew' is a transitive verb.)

    asked by John
  34. Algebra

    What is the absolute value of (-x - 6)?

    asked by Allan
  35. physics

    A particle moves from rest, its initial position being given by x = c with reference to a fixed point O. Its acceleration at a distance ‘x’ from 0 is mu/x^2 away from O. Show that its velocity is sqrt mu/c when it is a distance ‘x’ from O.

    asked by Sandhya
  36. Physics

    The coefficients of static and kinetic friction between a 476 N crate and the ware house floor are 0.615 abd 0.420, repectively. A worker gradually increases his horizontal push against this crate utnil it just begins to move and from them on maintains

    asked by Sarah
  37. physics

    Would someone check my thinking please. A solid sphere (mass, r, and moment of inertia given) is rotating at a given angular speed. Friction is constantly applied at the 'equator' of the sphere, and brings it to rest in 3s. Find the force. I worked out the

    asked by charlie
  38. math

    use A LG O R I T H M S methood to solve 838+627

    asked by barbara
  39. math

    Use lattice multiplication to find each product 124 X 56

    asked by heatherly
  40. Pre Cal.

    Find the area between each curve and the x-axis for the given interval. a. y=x^4+5 from x=0 to x=5 650 b. y=3x^2+5x-1 from x=1 to x=4 97.5 c. y=4x-x^3 from x=0 to x=2 4

    asked by Danny
  41. accounting

    Can somebody help me figure out how to calculate the profit or loss on 12,000 bags and 25,000 bags in this problem? The problem is Healthy Foods, Inc., sells 50-pounds of grapes to the military for $10 a bag. The fixed costs of this operation are $80,000,

    asked by AMW
  42. Ethics & Socity

    So what i need or how would write and paragraph or two on this? I don't understand it myself. Are the accountability systems put in place within our public service agencies working best as an escape route for those elected to govern the agency or as a tool

    asked by LaTarial
  43. math?

    Kong’s weight- 1933—Stop-motion pioneer Willis O’Brien, who brought the giant gorilla to life, once guessed Kong’s weight at a rather excessive 38 tons. 2005—8,000 pounds In the 1933 movie, Kong was about 20 feet tall. In the 2005 version, he was

    asked by jessica
  44. spanish

    this will hopefully be my last quesiton for spanish i want to thanks SraJMcGin very much for helping me throughout my course. Also, thanks to Gurublue. :) Cuando escales montañas, quiero que _____ mucho ciudado. a. tienes b. tengas c. tengo d. tiene i

    asked by y912f
  45. Chemistry

    A two-liter plastic soft drink bottle can withstand a pressure of 5.00 atm. Half a cup (approximately 120mL) of ethyl alcohol, (d=0.789g/mL) is poured into a soft drink bottle at room temperature. The bottle is then heated to 100C (3sig figs), changing the

    asked by Perez
  46. English

    1. It is about Tom's worries on his height and changes in teenagers' body and mind. 2. It is about Tom's worries about his height and changes in teenagers' body and mind. 3. It is about Tom's worries on his height and changes in teenagers' bodies and

    asked by John
  47. Pre Calculus

    Simplify 2(3-i^14)- (5-i^23) 3-i Simplify: (5-3i)^2 16+30i Simplify (3+2i) / (4-5i) (2/41)-(23/41)i is this right?

    asked by James
  48. Please check my maths answer?

    This is the question: The straight line y=2p+1 intersects the curve y= x+ (p^2/x) at two distinct points. Find the range of values of p. this is what i did: 2p +1 = x + p^2/x simplify.... x^2 + (2p+1)x + p^2 = 0 b^2-4ac > 0 (-2p-1)^2 - 4(p^2) > 0

    asked by Rikkie
  49. Essay Writing

    It's been a while since I posted a question here :] I'm writing an essay on schizophrenia and this is all I have so far. There is no limit to how long it can be, I just don't know what order I should write the issues in. Some sites giving more information

    asked by mysterychicken
  50. weird maths question?

    This is the question, but i get the wrong answer. In a theatre, 1/5 of the audience were under the age of 50 and 1/4 of the audience were over 75. What fraction of the whole audience were between 50 and 75 inclusive. I simply used 1 - 1/5 - 1/4 = 11/20 but

    asked by Sanchia
  51. Physics

    What gravitational force do yhe two protons in the helium nucleus exert on each other? There separation is approximately 1.0 fm. I know that 1 fm is 10^-15 m i didn't know if that was how you figured it out to get it to N?

    asked by Sarah
  52. ---

    i posted a HUGE spanish question, and it didn't even show up :(

    asked by y912f
  53. English

    Hello! I am writing observation jornals and have problems with defining of 2 global aims. 1.young learners of EFL have learned yesterday one word in their English class.How can I define the global aim? I need to start with "By the end of the lesson,

    asked by cary
  54. math

    Draw a picture of base-ten blocks and use the area interpretation for multiplication to show 34 X 28 complete the calculation by using a paper-and-pencil algorithm

    asked by heatherly
  55. English

    1. It is pain from growing quickly as a teenager. 2. It is pain from growing fast as a teenager. 3. It is pain from growing rapidly as a teenager. (This is a definition of 'growing pains.' Which one is correct?) 4. You have pimples on your face. 5. You get

    asked by John
  56. spanish

    "¿Qué estabas haciendo cuando tuviste el accidente, Daniel?" "_____ el desayuno cuando me corté el dedo." a. estoy preparando b. estaban preparando c. estaba preparando d. estuve preparando

    asked by y912f
  57. College Ethics&Socity

    Are the accountability systems put in place within our public service agencies working best as an escape route for those elected to govern the agency or as a tool of transparency for the interest of the people who elected them?

    asked by LaTarial
  58. persuasive speaking

    i am struggling with the need, plan advantage format for public speaking. i've already consulted my textbook and notes, i still am not understanding the material. is there any websites i can consult to find this format/an explanation? i tried googling it

    asked by Kinley
  59. Calculus

    Use logarithmic differentiation to determine the derivative of the function defined by f(x)=x^5(x-3)^9/(x^2+2)^4

    asked by Z32
  60. Algebra

    Let g(x) = 10-x/2+x a. Find g(-1) b. state the domain of the function 10-x/2+x c. Find g (t + 1) and simplify as much as possible

    asked by Jen
  61. Math

    Use the sum or difference identity to find the exact value of tan 105 degree.

    asked by Kara
  62. medical billind and coding

    Are there requirements for covered entities to have written privacy policies? If so, what has to be addressed in the policy?

    asked by betty
  63. grammar

    native americans helped the early european COLONISTS.a)DIRECT OBJECT B)INDIRECT OBJECT C)PREPOSITION D)PREDICATE NOMINATIVE. COLONISTS IS A C. I THINK if not please correct

    asked by alley
  64. grammar

    Change the following sentence from Active voice to Passive voice: 1. The teacher shouted at the learners when thy did not do their homework. 2. The thief stole a watch from the shop. 3. The soccer player dribbled the ball.

    asked by Ephraim
  65. Finance

    Managing Working Capital. A new computer system allows your firm to more accurately monitor inventory and anticipate future inventory shortfalls. As a result, the firm feels more able to pare down its inventory levels. What effect will the new system have

    asked by Linda
  66. POLYNOMIALS

    I'm really sorry, i'm preparing for O levels, so i have a lot of maths questions to ask... please excuse me... Question: Find the value of k for which a-3b is a factor of a^4 - 7a^2b^2 + kb^4. Hence, factorise completely. How do i even find k??? Please

    asked by Aoi
  67. math

    The following algorithm gives a correct answer: 488 + 65 5^1 5^1 3

    asked by barbara
  68. Finance

    1- How can management practices speed the collection of receivables? 2-Which management practices tend to slow the collection of receivables? 3-How have recent changes in the banking industry influenced the collection process?

    asked by Linda
  69. Ethics & Socity

    Are the accountability systems put in place within our public service agencies working best as an escape route for those elected to govern the agency or as a tool of transparency for the interest of the people who elected them?

    asked by LaTarial
  70. 1st grade

    I can't play now, can you come back later? Mike said, "I like grape soda". can i used these as sentences

    asked by dawn
  71. Science

    What is different about the appearence of rocks with mineral alignment and rocks with banding?

    asked by Angie
  72. Literature

    The best in this kind are but shadows” is

    asked by Moses
  73. English

    1. 100 dollars a month 2. We rent at/for 100 dollars a month. (House to rent: Does #1 mean #2?)

    asked by John
  74. Business

    Using the TVM theory, at what interest rate would it make more sense to take out a loan versus paying with cash?

    asked by Linda
  75. how do i do division?

    (a^4 - 7a^2b^2 + kb^4) ÷ (a-3b) I'm not sure how to divide this by long division or otherwise...

    asked by Aoi
  76. Calculus

    If f(x)=4-coshx/3+coshx, f'(x)=?

    asked by Z32
  77. Calculus

    If f(x)=6arcsin(x^3) find f'(x)

    asked by Z32
  78. Calculus

    f(t)=5^x sechx f'(x)=?

    asked by Z32
  79. Math

    Verify that tan x csc x/secx=1 is an identity.

    asked by Kara
  80. grammar

    identify the underline word. mosaics are PICTURES made of bits of colorful glass, stone or tile. a)direct object B)indirect object C)predicate adjective d)predicate nominative i thinks its b

    asked by alley
  81. grammar

    jerome is really SERIOUS about sports. a) predicate nominative b)predicate adjective c)indirect object direct object i think its b.

    asked by alley
  82. grammar

    every child should have have the OPPORTUNITY to learn to read and write. a)predicate nominative my ans.B)preposition c)indirect object D)direct object

    asked by alley
  83. math

    what id the slope of this=3x+-y=2

    asked by cris-an
  84. Goverment

    In a _________ tax strategy, the counsumer pays a higher tax rate as the income increases. What is the missing word(s)?

    asked by Anonymous
  85. Algebra

    Let g(x) = 10-x/2+x a. Find g(-1) b. state the domain of the function 10-x/2+x c. Find g (t + 1) and simplify as much as possible

    asked by Jen
  86. Goverment

    A taxation stragety were everyone pays the same doller amount regardless of income is a ____________ stragety. I don't know this one and i cant find it.

    asked by Anonymous
  87. Algebra

    Let g(x) = 10-x/2+x and then a)Find g (–1) b)State the domain of the function c))Find g (t + 1) and simplify as much as possible

    asked by Jamie