Questions Asked on
June 30, 2009

  1. Physics

    1 kg block of ice at 0 degrees celsius placed in cooler. How much heat will the ice remove as it melts to water at 0 degree celsius. I know the answer is 80kcal but don't know the math that backs up the answer-please help!

    asked by Mary
  2. calculus

    The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source. If two light sources, one three times as strong as the other, are placed 11 ft

    asked by robert
  3. science

    two tuning forks are struck at the same time. one tuning forkhas a frequency of 20hz while the second tuning fork has a frequency of 226 hz. How many beats will result?

    asked by nick
  4. 11th grade

    write a factual description of the scene at the park in your locality in the morning hours

    asked by shivani
  5. science

    two tuning forks are struck at the same time. one tuning forkhas a frequency of 20hz while the second tuning fork has a frequency of 226 hz. How many beats will result?

    asked by nick
  6. Algebra

    Babylonian Problem - circa 1800 BC An area, A, consisting of the sum of two squares is 1000. The side of one square is 10 less than 2/3 of the side of the other square. What are the sides of the squares?

    asked by Alyssa
  7. history

    show how the role of the federal government was viewed by different groups at different times in the 20th century. i don't even know how to begin answering this question. i'm so stuck. can someone please give me enough ideas to get started? please help me

    asked by y912f
  8. math

    in 1994 the life expectancy of malews in a certain country was 70.9 years. In 1998 it was 73.6 years. Let E represent the life expectancy in year t and let t represent the number of years since 1994 The linear functionE(t) that fits the data is E(t)=

    asked by jason
  9. Economics

    Rubax, a US manufacturer of athletic shoes, estimates the following linear trend model for shoe sales. Q1=a+bt+c1D1+c2D2+c3D3 where Q1=sales of athletic shoes in the t-th quarter t= 1,2,...,28{1998(I), 1998(II),...2004(IV)} D1= 1 if t is quarter I

    asked by JackEconomics
  10. Algebra

    An area, A, consisting of the sum of two squares is 1000. The side of one square is 10 less than 2/3 of the side of the other square. What are the sides of the squares?

    asked by Katrina
  11. history

    would you say that America's place in world affairs reflects its economic position. Explain your answer. :: The United States reputation is built on many things, not just economic power. We are technically "in debt" to China for billions of dollars, but we

    asked by y912f
  12. Grade 7

    I am doing a point form biogrpahy on John. A Macdonald. I need some facts about him or some sites where I can find sites about him Thanks:) Julia, CA

    asked by Julia
  13. english(letter of inquiry)

    I would like to know how to write a letter of inquiry. What are some websites where I can find samples of letter of inquiry? What should I write?

    asked by mic_
  14. Economyst please help

    Rubax, a US manufacturer of athletic shoes, estimates the following linear trend model for shoe sales. Q1=a+bt+c1D1+c2D2+c3D3 where Q1=sales of athletic shoes in the t-th quarter t= 1,2,...,28{1998(I), 1998(II),...2004(IV)} D1= 1 if t is quarter I

    asked by JackEconomics
  15. MATH

    a library shelf is 9 ft wide. a set of books fills 1/6 of the shelf space.each book in the set is 3/5 inch thick. how many books are in the set? I have tried working this fraction problem and I am stuck

    asked by DEBBIE
  16. north kansas city high school

    Calculate the resultant of the pair of velocities 100km/h north and 75 km/h south. Calculate the resultant if both of the velocties are directed north.

    asked by Anonymous
  17. history

    Discuss the policy of containment and give examples of how the United States supported it. Would you say it was a success? :: American policy of resisting further expansion of communism around the world this policy recognized the possibility that Eastern

    asked by y912f
  18. Creative Writing

    Is their anything else I need to do or add my this assignment because I suppose to have 175 word. I have to pick one of the following but I help explaining the one that I pick so can someone give me an example of one please. Choose one of the following

    asked by Fats
  19. math word problem

    Read the following story about the TV weatherperson and identify as many places as possible that the weatherperson could use addition or subtraction of integers to answer her questions. Write and solve the number sentences she could use. Ms. Cloudcover,

    asked by Anonymous
  20. Math Word Problem

    An area, A, consisting of the sum of two squares is 1000. The side of one square is 10 less than 2/3 of the side of the other square. What are the sides of the squares?

    asked by Carmin
  21. Algebra

    1. The area of a rectangle is 12 and the width is 3/4 the length. What are the dimensions? 2. One leg of a right triangle is 2 1/2 times the other and the area is 20. What are the dimensions?

    asked by Breanna
  22. Algebra

    Babylonian Problem - circa 1800 BC An area, A, consisting of the sum of two squares is 1000. The side of one square is 10 less than 2/3 of the side of the other square. What are the sides of the squares?

    asked by Audrey
  23. Algebra

    Please solve: a. 1/3 - 5/6 = 1/x b. t+1/3 - t-1/2 = 1

    asked by Jamie
  24. college sociology

    why do you think such communities get little attention from the U.S. mass media ?

    asked by Sean
  25. 6th grade english

    Give them fish they will eat for a day. Teach them to fish they will eat for years.

    asked by Kevin
  26. Math

    If the length of a rectangle is (2x-1)cm and its width is (x+3)cm. How do i write an expression in the form ax^2+bx+c for the area of the rectangle? Given that the area of the rectangle is 294cm^2, determine the value of x and state the dimensions of the

    asked by Shaw
  27. science

    Say you have a million dollars that you can invest into a bank account for 10% interest each year. how much money will you have each year to live off of? If you use more than amount,what happens to your original capital? What happens to your

    asked by devon
  28. Economics

    Economyst, please help Rubax__ a U.S. manufacturer of athletic shoes, estimates the following linear trend model for shoe sales: Qt= a + bt + c1D1 + c2D2 + c3D3 Where Qt= sales of athletic shoes in the tth quarter t= 1, 2,…., 28[2001(I), 2001(II), ….,

    asked by JackEconomics
  29. physical science

    a red light source and a green light source shine on a white screen. What color will the screen be. explain?

    asked by anonyomous
  30. Econ Please Help

    (Year 2000, Year 2001) QUANTITY ...Popcorn: (200,250) ....Novels: (50,30) .....Shoes: (8,10) PRICE ...Popcorn: ($1,$2) ....Novels: ($20,$25) .....Shoes: ($100,$80)

    asked by Qwerty
  31. creative writing

    Shelter is something beneath, behind, or within which a person, animal, or thing is protected people from storms. One means of shelter is protection from the cold. Shelters can be for abandoned animals. Shelters can be used for women that are escaping

    asked by Anonymous
  32. Grade 7

    What are some facts that could be used to prove the history of "the ameicans won the war of 1812 I have looked and looked and looked and I can't really find anything. Could someone please help by giving me some facts or places that I can look really

    asked by Megan
  33. [Urgent] Economics - GDP

    (Quantity, Price) 2000 ...Popcorn: (200,$1) ....Novels: (50,$20) .....Shoes: (8,$100) 2001 ...Popcorn: (250,$2) ....Novels: (30,$25) .....Shoes: (10,$80) If 2000 is the base year, what is the real GDP in 2001?

    asked by Christopholees
  34. Economics- Managerial

    Wilpen Company, a price-setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the following linear specifications: Q= a + bP + cM + dPr Where Q is the

    asked by Christopher
  35. MATH

    a cook has 2 3/4 hours to bake muffins. each batch of muffins takes 1/2 hour to bake. how many batches can she bake? Trying to work fraction problems but need help.

    asked by DEBBIE
  36. math word problem

    A golfer played 8 rounds on a tournament course with the following scores (par is the expected score for a round; negative numbers represent the number of strokes under par for the round, and positive numbers represent the number of strokes over par for

    asked by Anonymous
  37. Algebra

    Snookers Lumber can convert logs intoeither lumber or plywood. In a given day, the mill turns three times as many units of plywoos as lumber It makes a profit of $25 on a unit of lumber and $40 on a unit of plywood. How much of each unit must be produced

    asked by Johnnie
  38. English

    1. My left leg hurt. 2. My left leg ached. 3. My left leg was painful. (Are they all the same? Which one is commonly used?) 4. Korean students show respect to older people. 5. Korean students respect older people. 6. Korean students look up to older

    asked by John
  39. calculus

    find an equation in x and y such that the distance between (x,y) and (-2,0) is twice the distance between (x,y) and (3,1)

    asked by Anonymous
  40. Creative Writing

    Do anyone know anything about Replacement Poem help please

    asked by Fats
  41. science

    A magnet is plunged into and out of a coil of wire 2 times per second. This induces 5 volts. b- If the number of coils in the wire is doubled from 100 to 200, and the original rate of 2 times per second kept the same, what will be the new voltage induced?

    asked by anonymous
  42. econ

    Real GDP equaled $9,191 billion in 2000 and $9,215 billion in 2001. Both figures are adjusted for changes in the value of the dollar using a chained price index with a base year of 1996. Which of the following could explain the increase in real GDP in

    asked by Mat
  43. math

    Given that g(x)= 2x+1/5 and f(x)=x+4 Calculate the value of g(-2) 2(-2)+1/5= -3/5 Is this right?? How do i write an expression for gf(x) in the simpliest form?? And how do i find inverse functions such as g`1(x)?

    asked by Maxine
  44. 7th grade

    Doing an essay on the Battle of the Plain of Abraham; i need some opinions and bias'...i have alot of facts already, just need something more to back me up. help! Thanks

    asked by Lola
  45. English

    1. This style fits him nicely. 2. This style fits in him nicely. 3. This style becomes him nicely. 4. This style is suitable for him nicely. 5. This style looks good on him. (Are they all grammatical and the same?) 6. She is not allowed out after dark.

    asked by John
  46. 7th Grade

    Doing a Essay on the Battle of Plains of Abraham. I need: -Facts -Opinions -Bias Please help, I am having so much trouble

    asked by Lola
  47. calculus

    simplify the following: 2ln(x-3)+ln(x+2)-6ln(x)

    asked by Anonymous
  48. biology

    A child is born witrh cystic fibrosis-a recessive trait. However, both his parents do not exhibit the trait. How is this possible?

    asked by brandon
  49. 4th grade

    Insert the missing letter. C -> F; D -> H; G -> N; H .? ; I -> R A O B P C Q D R Could you please help?

    asked by BRENDON
  50. physical science

    two tuning forks are struck at the same time. one tuning forkhas a frequency of 20hz while the second tuning fork has a frequency of 226 hz. How many beats will result? Responses science - bobpursley, Tuesday, June 30, 2009 at 5:05pm you get the sum and

    asked by anonyomous
  51. Math

    if y = (3x^3 -12x^2 + 2x -8)/(x-4) find the derivative y'

    asked by jeff
  52. Science/Astronomy

    How would I go about estimating a stars apparent visual magnitude using only my eye's?Advice or good internet site is appreciated.

    asked by nichola
  53. Physics

    A PVC pipe that is one meter long is struck and the speed of sound is 345 m/s. What is the fundamental frequency (n=1) of the pipe when: a.The pipe is open at both ends? b.The pipe is closed at one end, open at the other?

    asked by Sarah
  54. science

    A magnet is plunged into and out of a coil of wire 2 times per second. This induces 5 volts. a- If the rate of motion changes so that the magnet is plunged in and out 6 times per second, what will be the new induced voltage?

    asked by anonymous
  55. Math

    Here is the question: Choose a nonzero integer for n to show that -n can be evaluated as a positive number. Here is my answer: If n=-2 then -n=-(-2)=2 Two negatives make a positive. Is this correct.

    asked by B.B.
  56. science

    if you have two 5 watt bulbs connected in series and then in parellel: which circuit arrangement will give you brighter bulbs? explain?

    asked by anonymous
  57. elementary aed 201

    Identify internal and/or external rewards that impact recruitment and retention of quality teachers. How do such rewards influence recruitment or retention? How might these rewards shift as new accountability-centered teacher reforms are proposed (such as

    asked by dina
  58. Math

    Can someone please help me with this problem? Use the number line to model the sum 2 + (-6). Here is my answer: Start at 2 and count backwards 6 points. Is this correct?

    asked by B.B.
  59. Economyst please help

    Economyst, please help Rubax__ a U.S. manufacturer of athletic shoes, estimates the following linear trend model for shoe sales: Qt= a + bt + c1D1 + c2D2 + c3D3 Where Qt= sales of athletic shoes in the tth quarter t= 1, 2,…., 28[2001(I), 2001(II), ….,

    asked by JackEconomics
  60. science

    Would you say,as a whole,we who live on the earth,are living sustainable or unstainable lifestyles.Why? Also in what ways might we be wasting our natural capital?

    asked by devon
  61. Micro Econ

    States do not currently collect sales taxes on consumer pruchases on the Internet. Who, consumers or suppliers, benefits from the absence of such taxes? Explain please.

    asked by Teri
  62. physical science

    if a blue object is placed in front of the screen, what color will it be? explain?

    asked by anonyomous
  63. biology

    Choose ONE animal species. Your goal is to describe the way in which an evolutionary change might occur for a particular characteristic (trait) of a population of that species as a result of natural selection. The characteristic (trait) could be something

    asked by Anonymous
  64. math

    [-12+(-18)](-16 + -4)

    asked by Anonymous
  65. Creative Writing

    What is the relationship between image and imagination? Consider definitions found in several sources to synthesize your understanding of the terms.

    asked by Fats
  66. Algebra

    Please solve: a. 1/3 - 5/6 = 1/x b. t+1/3 - t-1/2 = 1

    asked by Bonnie
  67. math

    Choose a nonzero integer for n to show that -n can be evaluated as a positive number

    asked by Anonymous
  68. Algebra

    Please solve: a. 1/3 - 5/6 = 1/x b. t+1/3 - t-1/2 = 1

    asked by Crystal
  69. Science

    Can anyone find a site that gives all the general types o0f human cells/

    asked by heidi
  70. hum130

    Find two Web sites dealing with indigenous cultures and/or religions. Discuss how modern civilization has impacted the spiritual lives of the indigenous peoples you explored. Are the indigenous religions still being practiced today? If so, how have the

    asked by luis
  71. hum130

    Consider the interrelatedness of everything in the cosmos as it is expressed in many indigenous religions. How do you think the importance of these relationships developed? What spiritual purpose do you think they serve for indigenous peoples?

    asked by luis
  72. article

    can someone help my find a business article free to download..i really need it..thank you very much

    asked by cocobunniesfromhell
  73. English

    1. People were lining up in front of the pay phone. 2. People were standing in line in front of the pay phone. 3. People were standing in a line in front of the pay phone. (Are they all correct?) 4. I am ready to go out. 5. I am ready for going out. (Are

    asked by John
  74. electronics

    pls help me guys... 1.) what is the function of cathode? 2.) what is the function of anode? pls answer it specifically and direct to the point. thanks guys. I really appreciate your big help on me. :)

    asked by akitsuke
  75. Math

    Can someone explain this question to me? I don't understand it. Show how to find the quotient 18 divided by (-6) by using A. The ideas of division as finding a missing factor. B. The procedures for integer division. Thanks.

    asked by B.B.
  76. Creative Writing

    What is the relationship between image and imagination?

    asked by Fats
  77. computer

    Hi my question is that that i`ve downloaded mozilla now my question is that by mistake i pressed a button and screen became too small of that site now how shall i make it back to normal as large as it was??? plz i need help coz i have to study so plz help

    asked by Bilish1
  78. Science

    Are there such things as pink sheep or is there fur dyed pink?

    asked by Ella
  79. geometry

    Set up a proportion to solve for RT using the scale factor 3:1, and use it to find the length of RT.

    asked by Anonymous
  80. Macroeconomics

    Which of the following aren't included in the measurement of GDP? Exports Personal income Consumption spending Government spending on goods and services Transfer payments Net interest Imports Investment spending

    asked by Martin
  81. Business law

    Which of the following statements are true? I. Federal law does not provide any right of workers to bargain collectively. II. It is not an unfair labor practice for an employer to refuse to bargain with a duly elected employee union. a. I only b. II only

    asked by Anonymous
  82. Math

    Could someone please explain this to me: Use counters to model the sum: 8 + ( -3 ). How I solved this was : 8 - 3 =5.

    asked by B.B.
  83. science

    phonology refers to the science which treats what

    asked by Anonymous
  84. Economics

    Which of the following items contribute(s) to an increase in real GDP? (i) The cost of cleanup after a hurricane hits Florida (ii) The market value of burglar alarms purchased to reduce crime (iii) The additional health care costs associated with smoking

    asked by Mark
  85. Physics

    Is there a formula for heat of fusion equal 334kJ/kg for ice?

    asked by Mary
  86. Math

    Could someone explain how I could do this problem? Use the number line to model the difference 3-7. Thanks.

    asked by B.B.
  87. Literature quick question

    Could someone please give me a link to where I can find a short summary (plot) of The Five People You Meet In Heaven. Thank You:) {Missy}

    asked by Missy
  88. Creative Writing

    The description moves from the broad category of transportation to a concrete, detailed image. The underlined words show how the image moves from the broadest category to the concrete, detailed image.

    asked by Fats
  89. Econ

    (Year 2000, Year 2001) QUANTITY ...Popcorn: (200,250) ....Novels: (50,30) .....Shoes: (8,10) PRICE ...Popcorn: ($1,$2) ....Novels: ($20,$25) .....Shoes: ($100,$80) If 2000 is the base year, what is the real GDP in 2001?

    asked by Ed
  90. Math

    Here is the question: How would you convince someone that for integers a and b, a-b and b-a are opposites of each other? Here is my answer: a+(-a)=0 b+(-b)=0 because opposite of a = -a and opposite of b=-b now: (b-a)+(a-b)=o . So they are opposite. Is this

    asked by B.B.
  91. HSM

    What is aperson-centered approach to communication

    asked by lisa
  92. math

    hy,i have trouble doing (x+1) with an exponent 3 on top of the parentheses and (x+1) with an exponent 4 on top of the parentheses thank you

    asked by kevin