Questions Asked on
March 20, 2010

  1. 8th grade

    what is the answer to what do you call drilling 4,876 holes?

    asked by Anonymous
  2. physics

    An athlete whirls a 7.50-kg hammer tied to the end of a 1.1-m chain in a horizontal circle. The hammer moves at the rate of 1.3 rev/s.(a) What is the centripetal acceleration of the hammer?(b) What is the tension in the chain?

    asked by Luricela
  3. Math

    The maximum weight M that can be supported by a beam is jointly proportional to its width w and the square of its height h, and inversely proportional to its length L. a. Write an equation that expresses this prportionality b. Determine the constant of

    asked by Jennifer
  4. College Chemistry

    Given: 2Al2O3 (s) 4Al (s) + 3O2 (g) °H = 3351.4 kJ, what is °H for the formation of 12.50 g of aluminum oxide? Help please.

    asked by Taylor Marie
  5. Science

    Describe the difference in the annual temperature range between a coastal region and an inland region.

    asked by Anonymous
  6. Chemistry

    Write the structure of the hemiacetals that results from the following reactions: 1)2-butanone + 1-propanol 2)butanal + isopropylalcohol I got this for #1: CH2-C-OCH2CH2CH3 with an OH on the single C and the CH2CH3 on the single C. I don't know how to do

    asked by Jamie
  7. fractions

    7 children are waiting for the bus 4 of them are girls what fractions of the children are girls

    asked by billie
  8. Organic chemistry

    When synthesizing n-butyl bromide by allowing n-butyl alcohol to rect with sodium bromide and sulfuric acid what are the formulas for the salts that may precip. when the reaction mixture is cooled?

    asked by Tammy
  9. physics

    a square window for viewing fish at the camden aquarium measures 80 x 80cm & its center is 12 m below the surface of the water. what is the total force on the window?

    asked by john
  10. physics

    an object floats with 1/2 of its volume beneath the surface of the water. the weight of the displaced water=2000 N. what is the weight of the object?

    asked by john
  11. Calculus

    An isosceles triangle has a vertex at the origin. Determine the area of the largest such triangle that is bound by the function x^2 + 6y = 48. So, y=8 when x=0 making a vertical side equal to 8. I also determined that there is a zero at =/- the square root

    asked by Jeff
  12. math help

    Tony is driving to Denver. Suppose that the distance to his destination (in miles) is a linear function of his total driving time (in minutes), as shown in the figure below. Tony has 67 miles to his destination after 35 minutes of driving, and he has 55.6

    asked by Anonymous
  13. physics

    What hanging mass will stretch a 1.6 meter long, 0.66cm diameter steel wire by 1.4cm.? Need answer in kg. ( this is all that is in the question , no other hints given).

    asked by norm
  14. Biology

    Match the terms with the correct description: a. regulates supply of gases from ATP production b. provides negative feedback signals c. protects body against foreign dangers d. "rapid transit" for liquids and gases e. primary "regulator" of sensory

    asked by mysterychicken
  15. English

    1. This book is really fun. 2. This book is real fun. 3. This book is great/good fun. (I have a question. You said #1 and #2 are right, but that #2 is not right. What about 'good' fun? Is it right to use 'good fun' instead of 'great fun'? If #3 is right,

    asked by rfvv
  16. y912f

    I think I remember you wrote a short essay on this, and I commented that the economics is silly. Here is one the payback period is 88 years, but the panels only last 30 years. This is typical.

    asked by bobpursley
  17. chem

    What three things does a balanced equation show you

    asked by wendy
  18. Physics

    The refractive index of a medium changes with the wavelength of incident light. Typically, the shorter the wavelength the larger the refractive index. Fused quartz has a refractive index of 1.47 for indigo light of 400 nm in wavelength, and a refractive

    asked by Samantha
  19. Math/157

    A human gene carries a certain disease from the mother to the child with a probability rate of 53%. That is, there is a 53% chance that the child becomes infected with the disease. Suppose a female carrier of the gene has three children. Assume that the

    asked by anony
  20. crt205

    1. Since some grapes are purple, and all grapes are fruit, some fruit is purple. a. Valid. b. Sound. c. Inductive (strong). d. Inductive (weak). e. This is an explanation We are going to look at lots this afternoon.” Which of the following is the

    asked by NancyM
  21. Math

    Carrie and Crystal live at a equal distances from school. Carries walks to school at an average rate of 3 miles per hour and Crystal rides her bike at an avergae rate of 9 miles per hour. It takes Carrie 20 minutes longer than Crystal to get to school. How

    asked by David
  22. math

    trying to find the missing angle of 45degrees and 160 degrees?

    asked by Velinda
  23. fractions

    There are 16 tulips in the garden 1/4 of them are red how many tulips are red

    asked by billie
  24. Geography

    24. The South African government changed its policy of apartheid in 1990 and 1991 because of a. the policy's failure to eliminate racial discrimination b. promises of economic aid from major industrial nations c. international sanctions and an increase in

    asked by y912f
  25. Math!

    Rebecka borrowed $3500, 5000, 3500,& 4500 from her dad on September 1 of each of four successive years for college expenses. Rebecka and her dad agreed to a loan at the rate of 8.75% compounded quarterly. If it is now 2 years from the last day that she

    asked by Thara!
  26. Social Studies

    What is a good thesis statement about the Great Depression Speculation?

    asked by Jerett
  27. bsa 375

    Why is a systems development process needed? What is the objective of each phase of the SDLC? Describe briefly? How important are feasibility studies. The text mentions four types of feasibility studies: operational, technical, economic, and schedule. In

    asked by darren
  28. fractions

    There are 15 cupcakes 5 cupcakes are chocolate what fraction of the cupcakes are choclate

    asked by billie
  29. Chemistry

    A student performed the synthesis of aspirin using a water bath at 90C instead of 50C. The final product was tested for the presence of phenols with ferric chloride. This test was negative (no color observed); however, the melting point of the dry product

    asked by Sunny
  30. physics

    a graphic artist is craeting a a logo for her company's website. in the graphicics program she is using , each pixel in an image file has coordinates (x,y), where the origin(0,0) is at the left top corner of the image, the x-axis points to the right and

    asked by khalipa
  31. statistics

    An employer wants to estimate to set a time limit so that 75% of the employees will finish a job on time. Past history has shown that the time required to do the job is normally distributed and has a mean time of 26 minutes with a standard deviation of 5

    asked by mocha
  32. algebra

    A wheel makes 4 17/20 revolutions per minute. If it rotates for 48 minutes,how many revolutions does it make?

    asked by Kevin
  33. Biology

    18. The function of neurons is to a. maintain a difference in electrical charge across the cell membrane b. have specific ions cross the membrane through ion channels c. maintain a membrane potential with charged ions on either side of the cell membrane d.

    asked by mysterychicken
  34. Crt 205

    I need some help with a few questions on my homework. 1)The Lakers almost didn't beat the Kings. They'll never get past Dallas. (Assume that in fact, the Lakers beat the Kings.) a. Valid. b. Sound. c. Inductive (strong). d. Inductive (weak). e. This is an

    asked by NancyM
  35. Maths 2U

    how do you find the horizontal and vertical assymptotes of the curve y= x/ x+3 and also the intercepts. so that you can approximate the area under the curve from x=1 to x=5 using 5 function values? THANKYOU,

    asked by TRACY-888
  36. World History

    "Why did farming start at different places and at different times around the world?" -Refering to 7000 BC or so! I already have the answers to the second part of the question, How did farming start, but I want to see if I'm on the right track with the

    asked by Sara
  37. physics

    a rectangular box measures 5 x 1 x .5 m. what mass may be loaded in it (including the mass of the box) before it sinks in a lake?

    asked by john
  38. Chemistry

    What aldehydes and primary alcohols might be oxidized to yield the following carboxylic acids: 1)p-methylhexanoic acid 2)pentanoic acid #1 should have been p-methylcyclohexanoic acid (p is para). My homework has the structure drawn out and I named it

    asked by Jamie
  39. Physics

    Consider the current-carrying wires in the figure. I can try to describe the figure here.. - Diagram A has the wire coming from the left, it forms a loop in the centre in a clockwise direction and leaves going to the right. - Diagram B has the wire also

    asked by Sandra
  40. Word Problem

    A swimming pool 25 m long, 15 m wide, and 150 cm deep is being filled at the rate of 20 L/min. How many hours will be needed to fill the pool?

    asked by Lyndse
  41. latin

    the latin base in the word versatile means: a}to feel b}to prick c}to turn d}to have p.s.help plz

    asked by beonca
  42. algebra

    I need to find a solution by substitution method

    asked by cynthia
  43. physics

    An 7.95 g bullet is fired horizontally into a 9.03 kg block of wood on an air table and is embedded in it. After the collision, the block and bullet slide along the frictionless surface together with a speed of 11.6 cm/s. What was the initial speed of the

    asked by Jess
  44. math of investment

    Suppose the probability of a coin coming up heads is 2/5. The coin is tossed 4 times (the tosses are independent), and Jane will win $5 for each head. If all 4 tosses are heads, she will get $100 extra. She never loses money. a)what is the probability that

    asked by Anonymous
  45. Algebra

    Suppose it takes 3 days for a space vehicle to travel from earth to the moon. How long for the same vehichle and the same speed to reach Jupiter? Moon distance from earth is 240,000 miles. Jupiter distance from earth is 391,000,000 miles

    asked by TAnya
  46. Accounting

    using the financial statements of landry's restaurant located in appendix a of the text fundamentals of financial accounting 1st ed by phillips libby and libby compute the following ratios for 2002 and 2003 a. Return on Equity b. Inventory Turnover I

    asked by Chris
  47. research writing

    write a essay on, why health care policies are likely to continue in their existing downward spiral. My claim is that placing health care under private directors will bring a severe decline in medical care for the elderly and/or poverty stricken people. I

    asked by dana
  48. Math

    Hi these are the problems I attempted, can someone tell me If I did them correctly? Thanks in advance3 Jane has invited 126 people for a pizza party. If each pizza has 18 slices and she estimates that she needs 3 slices per person, then how many pizzas

    asked by Tasha
  49. algebra

    The volume of a sphere is given by V=4/3pie cubed. What happens to the volume of a sphere if r is halved?

    asked by Steffy
  50. business law

    please can you help me in this: Ethical Systems Table 1. Fill in brief definitions of each primary ethical theory. 2. Identify alternate names or variations of each ethical system based on your reading of the text and supplemental materials. Match the

    asked by bluesea
  51. math

    Two marbles are drawn from a bag containing 6 white, 4 red, and 6 green marbles. Find the probability of both marbles being white.

    asked by purple
  52. Chemistry

    How much copper could be produced if 5.00g of iron was used with 16.00g of copper (II) sulfate pentahydrate?

    asked by Janet
  53. Chemistry

    What aldehydes and primary alcohols might be oxidized to yield the following carboxylic acids: 1)p-methylhexanoic acid 2)pentanoic acid

    asked by Jamie
  54. Stress factors

    If a child or teenager is living under poverty and struggles in elementary or high school, what kind of stress are they going through?

    asked by AL 87
  55. physics

    calculate the total pressure at an ocean depth of 6000 m (the depth at which the wreck of the titanic was found) in both pascals & lb/in^2

    asked by john
  56. Biology

    18. The function of neurons is to a. maintain a difference in electrical charge across the cell membrane b. have specific ions cross the membrane through ion channels c. maintain a membrane potential with charged ions on either side of the cell membrane d.

    asked by mysterychicken
  57. 10th grade Math

    Triangle POB has vertices: P(0 , 4) O(-3 , 0) B(3, 0). Determine the orthocentre of the triangle.

    asked by Jenny
  58. computer

    list at least five netiguette rules,and explain why they are important

    asked by mary
  59. math

    Find the variation equation for the variation statement. z varies directly as x and inversely as y; z = 3 when x = 24 and y = 40

    asked by Anonymous
  60. math

    something that looks like a equilateral triangle

    asked by victoria
  61. Math

    How do I find the volume of a sphere inscribed in a cube with each edge 4 cm

    asked by Anonymous
  62. Math!

    Dalya is considering two offers on a property that she is willing to sell. Mr.Wangs offer is $65000 payable immediately. Ms.Macrae's offer is for $13,000 down and $58000 payable in two years. a) Which offer has the greater economic value if Dalya can earn

    asked by Thara!
  63. fractions

    12 dogs were in the park 2 of them were dalmatians what fractionsof the dogs@were dalmatians

    asked by billie
  64. acronym

    Which of the following is an acronym? a}MADD b}FCC c}NBA d}EKG what u think?

    asked by beonca
  65. algebra

    how do I break this down? 4x-7

    asked by bob
  66. cjs 230

    difference between the conventional forms of rehabilitation programs and the newer programs of today

    asked by Anonymous
  67. math

    write the first three terms of the expansion of (a-b)^10 what are the last three terms of (a-b)^7

    asked by purple1
  68. computers

    Average typing speed for middle school

    asked by shannon
  69. earth

    in the layer ofsedimentary rocs the oldest can be find in where

    asked by ana
  70. Math

    1)What is the domain of f/g? f(x) = x/x+1, g(x) = x^3 all real numbers greater than 1. Am I correct? 2) Find f x g, g x f, and f x f f(x) = 3sqrt x-1 g(x) = x^3+1 For the f(x) the 3 is little above the sqrt sign. I do not understand how do fidn these.

    asked by Hannah
  71. Communication Language Studies

    How might the language development of a child exposed to two or more languages in the home differ from that of a monolingual child? In what ways might their development be similar?

    asked by Tammie
  72. English

    Hey, Any ideas on how to make your own fairytale? I've already started but all i have is a couple of random paragraphss. I wasnted to make it instead of a happily ever after the hero leaves the heroin, but i want them to both have a strong love. And I

    asked by Me
  73. physics

    an objectfloats in water with 3/4 its volume below the surface of the water. if the volume of the object is 1 m^3, what is the mass of the object?

    asked by john
  74. nutrition

    Jack Sprat is a 55 year-old gentleman who underwent coronary artery bypass graft to treat atherosclerosis. He returns to his internist's office where you work as a nurse practitioner. Jack reads a lot of books and watches movies about fast foods, saturated

    asked by Anonymous
  75. math

    could someone help me to put this inorder from smallest to largest: .25, 1/4, 1/25, .10, .0001, 1/1000 or if this is correct 1/1000, .0001, 1/25 (=.04), .10, .25, 1/4 (=.25), thank you for your help

    asked by st
  76. Math!

    What amount 18 months ago is equivalent to $2300, 1.5 year from now if money earn 7% compounded monthly during the interving time? i know: FV=$2300 j=7% m=12 and ?n=36? i=7%/12 PV=FV(1+i)^-n PV=2300(1+.07/12)^-36 PV=1865.48 The answer is $1865.45 What i

    asked by Thara!
  77. Communication Language Studies

    Supply rhyme (Given a word "fish", offering "dish") Totally confused, may be it is just me, but I am not understanding what is asked for here? A rhyme? If so, referring to those words? If so, I am stil lost Please help. Thanks!

    asked by Audrey
  78. math 12

    How many different binary numbers can be present by a string of binary code with 5 digits if the first digit is 1 and the last two digits are 0?

    asked by Juliet
  79. Chemistry

    Could someone tell me how I would write out trimethylammonium butanoate's structure? I think the butanoate part is CH3CH2CH2-C=O but I don't know how to add the trimethylammonium part to it.

    asked by Josh
  80. Science-Review

    What is one really easy way to remember about the moon's phases, because it is really hard for me to memorize about them.

    asked by Sara
  81. religion

    is mohammed the same has muhammad? because I can not find any info, on mohammed for my paper i have to do

    asked by scooby
  82. law

    Which one of the following is an example of a leading question? 1. What time did you administer the medication? 2. How long have you worked at West End Hospital? 3. Did you see Dr. Martin in the patient's room on the morning in question? 4. Isn't it true

    asked by Marie
  83. Math

    trying to figure the length of a right triangle when the other two sides are 17 and 15?

    asked by Velinda
  84. 7th grade social studies

    what types of plans or previous forms of government can james madison call apon to dragt the constitution of the united states?

    asked by mary
  85. math

    Divide as indicated. (-2x^5 - x^3 + 4x^2 + 58x - 20) ÷ (x^2 - 5)

    asked by Anonymous
  86. Algreba

    Solve the equation for the specified variable. A= 1/2h(B + b) for b

    asked by Mala
  87. Math! plz help!

    Rebecka borrowed $3500, 5000, 3500,& 4500 from her dad on September 1 of each of four successive years for college expenses. Rebecka and her dad agreed to a loan at the rate of 8.75% compounded quarterly. If it is now 2 years from the last day that she

    asked by Thara!
  88. Image Search (URGENT)

    Can someone please tell me how I would be able to find 19th century (1815-1901) pictures of canadian landscapes such as: architecture (houses, churches, towns, cities) transportation (roads, cars, rails, bridges) farms native villages industry recreational

    asked by John
  89. High School Science

    A ray of light goes from water (nwater=1.333) into ice (nice=1.309). Which of the following statements is true? 1) The ray gets closer to the normal after crossing the interface. 2) The ray does not change directions after crossing the interface. 3)The ray

    asked by Erik
  90. algebra

    what are the x-intercepts, and the y-intercepts and the foci of the ellipse x^2/25 + y^2/36 = 1

    asked by Paula
  91. algebra

    what is the equation of the ellipse with goci at (0,-4) and (0,4) and the sum of its focal radii being 10?

    asked by Paula
  92. algebra

    what are the x-intercepts, the extent of the graph and the asymptotes for x^2/16-y^2/25 = 1

    asked by Paula
  93. us history

    modern world peacekeeping organization

    asked by hassan
  94. Math

    Find the shaded area in the following figure if the rectangle inscribed in the circle has dimensions 3 ft x 4 ft. I know I find the area of the rectangle A=l*w, but what do I do next? I know that the Theorem of Pythagoras, 3^2 + 4^2 = d^2. So I can find

    asked by Anonymous
  95. us history

    systematic widespread effort to manipulate people`s ideas

    asked by hassan
  96. Math

    Simplify that rational expression. Please show the steps x^3-8/x^2-4

    asked by Anonymous
  97. Algebra

    Simplify the following: 4st/3s(squared) divided by 12tsquared / 9s

    asked by Steffy
  98. 11th grade

    what is the systematic widespread effort to manipulate people`s ideas

    asked by hassan
  99. back formation

    An example of back-formation is: a}persuasive b}conciliator c}sensitize d}escalate the answer i choose is d.

    asked by beonca
  100. bobpursley

    Can you please answer my last post? Thanks -MC

    asked by mysterychicken
  101. ETH125

    conduct research to determine if the group colonized or if it immigrated to the United States. Did the group face prejudice, segregation, racism, or any combination of the three? If so, how and Why? Include your research findings in your essay. You may

    asked by michelle
  102. math

    find the sum of each of the following infinite series, if no sum, write no sum. 9-3+1-1/3+1/9... 1/2+1+2+4...

    asked by purple1
  103. french

    What does solde A Payer Mean

    asked by Karen
  104. math

    what is right angle

    asked by pavleen
  105. MATH

    what is a triangle

    asked by PAVLEEN
  106. math

    Suppose a contest offers $1000 to the person who can guess the winning four digit number. How many possibilities are there?

    asked by purple
  107. physics

    Determine the net force necessary to give an object with a mass of 1.8 kg an acceleration of 5.7 m/s2.

    asked by Michelle
  108. Language Studies

    Identify some caregiver activities that might foster metalinguistic skills in children, and explain why they might be effective.

    asked by Carmin
  109. Accounting

    using the financial statements of landry's restaurant located in appendix a of the text fundamentals of financial accounting 1st ed by phillips libby and libby compute the following ratios for 2002 and 2003 a. earnings per share b. return on Equity c.

    asked by Denny
  110. Language Arts

    What are the other forms of the word, 'reap'. I only found reaps and reaped.

    asked by Anya
  111. adult education

    you are a CEO at a human service Agency, who just took over another small human service agency. Now convince the board of directors why you need a new mission statement

    asked by importance of writing a new mission statement after taking over a small human service agency
  112. 402 soc

    How does the political-economic system affect the problems related to the American economy and work?

    asked by meshelle
  113. japanese

    How would you say: next month on April 14th I am going with my parents on vacation to Hawaii. In katakana and hirgana only please.

    asked by Kate
  114. What does this mean....

    “Sometimes you put walls up not to keep people out, but to see who cares enough to break them down.”

    asked by Anonymous