1. math

    a popular tourist attraction in ottawa is the Peace tower, which rises from the Center Block of the Parliment buildings. Describe at least one method that you could use to estimate the height of the tower, including the measurments you would need to make.

    asked by erica on August 13, 2012
  2. data management

    3. To identify the cultural events that its readers would like to see reviewed, a weekly magazine conducted a survey of randomly selected members of local arts groups. a) Discuss any bias that could affect the results of this survey. b) Suggest a different

    asked by sathu on March 27, 2015
  3. chemistry

    Calculate the mass of salts needed for constructing a buffer using potassium monobasic phosphate and potassium dibasic phosphate with the total concentration of 100 mM. The solution is to be prepared in DI water and the pKa value for potassium monobasic

    asked by dave on November 14, 2010
  4. 1o math

    Scott charged a $568 purchase on his credit card. The first month he paid $200. The second month's statement included a 1.75% monthly finance charge, computed on the unpaid balance method. What was the total amount due on the second statement?

    asked by ar on January 11, 2010
  5. Penn foster high school.

    4. When sewing a new dress for yourself, the best method of marking the hem length is to A. pin it an even distance from the waistline. B. do it yourself with an adjustable hem marker. C. ask someone to mark it for you. D. chalk an even line from the lower

    asked by Nehaa on August 1, 2017
  6. Health records

    . _______ is an outcome-based payment method that's accepted by most health plans, that provides financial incentives for meeting specific standards, and documents them electronically. A. Revenue for reason B. Revenue for results C. Pay for performance D.

    asked by blue on March 9, 2019
  7. databases

    Fernando Cilebra has always ben facinated by skateboards. Fernando has won several contests, both locally and nationally. His interest in skateboards led him to open Fernando's Shop in Denton, Maine. Fernando sells street, trick, and children's

    asked by Gloria on April 27, 2012
  8. Chem- follow up question

    Sorry i posted this as an answer after my question had been answered, this is continued from the qualitative analysis question: That reallly cleared some things up, but I do still have a few questions. Umm im not completely clear on the hyrogen peroxide

    asked by Joe on February 28, 2010
  9. Chemistry -- to Dr.Bob

    What is the pH of the solution created by combining 11.10 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HC2H3O2(aq)? ok Dr. Bob so here's the work NaOh: .00111 Acetic Acid: .0008 Salt produced: .00111-.0008= .00031 Concentration of salt:

    asked by Amy on May 3, 2008
  10. not sure

    many american cars feture speedometers that show kilometers per hour. If you are required to drive 55 miles and you know that one kilometer is approximately 5/8 of a mile, how many kilometers would you cover in that journey? 800 but how and why? nevermind.

    asked by chris on July 25, 2007
  11. Algebra 2

    solve log2(3x-1)-log2(x-1)=log2(x+1) i have absolutely no idea how to solve this. can anyone help me, please?

    asked by Kelly on November 9, 2010
  12. chemistry

    Q.1Explain why CH3COOH2^+ is in terms of protonic concept? Q.2 0.1 mole HCl is dissolved in distilled water of volume V then at a limit V =infinite pH of the solution is equal to______? Q.3One litre of water contains 10^-5 moles of H^+ ions at 25 degree

    asked by anonymous on January 6, 2010
  13. Math

    Rick works two jobs to pay for college. He tutors for $20 per hour and also works as a bag boy for $7 per hour. Due to his class and study schedule, Rick is only able to work up to 25 hours per week but must earn at least $200 per week. If t represents the

    asked by Oscar on December 19, 2015
  14. accounting

    I am attempting to study for an exam for tomorrow and cannot figure out the equity method entries up to 2006 for this problem, can someone please help! Parent Corporation owns 80% of Subsidiary Corporation’s outstanding common stock that was

    asked by Bob on April 5, 2010
  15. College Algebra

    Can you please help me solve this word problem? Your boss has asked you to come up with a price model for one of the cell phone models that your company produces. In the model, costs and length of service are directly related. You are also asked to examine

    asked by Michael on January 19, 2011
  16. calculus - power series ASAP please :)

    using power series, integrate & evaluate to 4 dec. places integral from 0 to 1: sin x^2 dx i'm REALLY stuck on this. and i need help asap.. what is the inverse of "sin x^2" so that i could have it in a fraction that will fit the power series equation? and

    asked by COFFEE on July 31, 2007
  17. Physics Help!!!! Please check

    We had worked this one out before but due to my bad note i really don't understand what is going on in the question. Following the question I will post what I wrote done. Please help me make some sense of it. A 3.2 kg block is hanging stationary from the

    asked by Mary on May 8, 2007
  18. ship problem

    A [B]ship P [/B] is travelling due [B]East at 30 km/h[/B] and a [B]Ship Q[/B] is travelling due [B]South at 40 km/h. [/B] Both ships keep constant speed and course. [B]At t=0 they are each 10 km [/B] from the point of intersection of their courses and

    asked by rav on July 15, 2006
  19. Advanced Physic

    An 8.5 m extension ladder of mass 24 kg is propped up against a wall, touching at a point 8.0 m above the level ground. A man of mass 75 kg climbs 2.0 m up the ladder to repair a window. The ladder rests against a frictionless wall, but the ground has

    asked by Anonymous on May 14, 2014
  20. Find the pattern

    Our trip lasted for 12 days we arrived Sunday July 1 and left on Thursday July 12th where we stayed everyday something went wrong the electricity went out the water was shut off sliding patio wouldn't close the gas oven didn't work, and it rained. Out of

    asked by Lana on October 1, 2014
  21. Quadratic Functions2

    Determine the standard form of a quadratic function whose graph has a y intercept of 8 and a vertex at (-2,-4). The answer is f(x)= 3x^2 + 12x +8 but I can't figure out how to get the answer. Solve x^2 + x=6, by factoring. The answer is x=-3,2 but I can't

    asked by Heaven on June 1, 2016
  22. physics

    Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.80 * 10^6 N, one 16 degrees west of north and the other 14 degrees east of north, as they pull the tanker 0.63 km toward the north. What is the total work they do on the

    asked by anonymous on September 24, 2018
  23. organizational behavior

    Keep in mind the differences that exist between FMC Green River and FMC Aberdeen and continue to think in terms of the differences you see in both facilities for each of these three topics. For example, what are the differences in the work groups,

    asked by Rose on October 23, 2008
  24. English

    1. If you don't work hard, you will be poor. 2. If you don't work hard, you will become poor. 3. If you don't work hard, you will get poor. 4. Unless you work hard, you will be poor. (Which expressions are commonly used? Can we use all the expressions?)

    asked by John on December 9, 2008
  25. Chemistry

    Calculate the freezing point depression and osmotic pressure at 25 degrees C of an aqueous solution of 1.0 g/L of a protein (mol wt= 90,000) if the density of the solution is 1.0 g/mL. I know how to calculate freezing point depression and osmotic pressure,

    asked by Jessica on March 24, 2007
  26. Chemistry-DrBob222

    I know I pored this already, but I for it to mention the assumption. See below. A calorimeter contains 30.0 mL of water at 15.0 C. When 1.50 g of X (a substance with a molar mas of 46.0g/ mol is added, it dissolves via the reaction X (s) + H2O (l) ----> X

    asked by Student on March 11, 2016
  27. english

    I have to edit the following sentences to untangle mixed constructions. Here is the list of five and my corrections below them. 1. Early diagnosis of prostate cancer is often curable. 2. Depending on our method of travel and our destination determines how

    asked by Roger on July 1, 2010
  28. Physics PLEASE

    I'm trying to solve this problem Calculate (a) how long it took King Kong to fall straight down form the top of the Empire State Building (380 m high), and (b) his velocity just before "landing". My teacher said try and rearagne this equation for t X = Xo

    asked by Physics PLEASE on June 23, 2009
  29. maths

    300 mens were engaged to complete a job in a certain number of days. but due to another assignment 15 men dropped the 2nd day, 15 more men dropped the 3rd day and so on.it takes 15 more days to finish the work now. find the number of days in which the work

    asked by hawwa on March 11, 2016
  30. equilibrium III

    what's Kp if Cl2CO was found to be 7.46% decomposed at 395'C when initial pressure is 7.60atm. Cl2CO -->

    asked by christine on April 10, 2007
  31. Algebra 1 (Reiny or Kuai)

    1. At a chili cook-off, people pay a $3.00 entrance fee and $0.50 for each bowl of chili they taste. The graph shows the total cost per person as a function of the number of bowls of chili tasted. a. Write a rule that gives the total cost per person as a

    asked by Please, help me! This is urgent! on December 3, 2013
  32. integral calculus

    A cylindrical tank of radius 3 ft length 8 ft is laid out horizontally .The tank is half full of oil that weighs 60 pounds per cubic foot. a.)determine the work done in pumping out oil to the top of the tank. b.)determine the work required to pump out the

    asked by jhay on May 22, 2016
  33. FINANCE

    Sir wants to save money to meet 3 goals. He would like to retire 30 years from now with retirement income of $25k monthly for 20 years, with the first payment received 30 years and 1 month from now. He would like to purchase a cabin in 10 years at a cost

    asked by Anonymous on February 5, 2010
  34. calculus

    for f(x)=5/8, a. find an equation for the secant line through points where x=4 and x=5.b. find an equation for the line tangent to the curve when x=4. I can solve part a., but I am confused on part b. please help. I don't understand how to plug the numbers

    asked by Duane on October 26, 2014
  35. NAPOLEON INFORMATION

    Imagine that you are a senior advisor to Napoleon. You have been asked to prepare a memo outlining the advantages and disadvantages of disrupting Britain's trade with Europe. Your memo should examine the impact of such a move from the standpoint of

    asked by Sara on November 9, 2009
  36. Unit 5 - Discussion Board

    Your friend Lucy slept through a class in which her professor explained the concepts of depreciation and amortization. Use the Cybrary's Accounting links and/or dictionary sources and the Internet to learn about these concepts, and then write a 4-5

    asked by candy on September 21, 2006
  37. History

    1.)How did New England's textile industry affect women? A.)New technologies required men to work far from their wives & families. B.)The jobs in the this field were considered "men's work

    asked by #FreeGucci on March 28, 2016
  38. Physics

    A rotating door is made from four rectangular glass panes, as shown in the drawing. The mass of each pane is 85 kg. A person pushes on the outer edge of one pane with a force of F = 63 N that is directed perpendicular to the pane. Determine the magnitude

    asked by Papito on April 22, 2007
  39. Chemistry

    Chalk is a soft, white, porous sedimentary rock, a form of limestone composed of the mineral calcite. Calcite is calcium carbonate, CaCO3. It forms under relatively deep marine conditions from the gradual accumulation of minute calcite plates (coccoliths)

    asked by Shell on May 19, 2011
  40. physics

    1. A man pushes on a box at an angle of 30.0° with a force of 20.0 N and the box moves across the floor. Which of the following component of the force do you use to calculate work? (Points : 1) 0.00 N 10.0 N 17.3 N 20.0 N Question 2.2. A man carries a 10

    asked by Hailey on February 2, 2015
  41. Chemistry

    When an aqueous solution of lithium chloride is mixed with an aqueous solution of ammonium sulfate a precipitate forms a new salt is formed a gas is evolved an acid and base are formed no reaction occurs I either thought it was a precipitate forms or no

    asked by Lauren on December 11, 2007
  42. Chemistry

    Calculate pH of a solution by mixing 15.0 mL of .50 M NaOH and 30.0 mL of .50 benzoic acid solution (benzoic acid is monoprotic, its dissociation constant is 6.5 x 10^ -5). I am not sure whether I am supposed to do it by acid-base titration way or to use

    asked by Soojung on July 28, 2009
  43. Chemistry

    The vapor pressure of 1 M of KI solution is ________ 1 M of glucose solution. This is because vapor pressure depends only on the _________. Which option correctly completes this statement? the same as; concentration of the solute less than; number of

    asked by Quinn on March 21, 2019
  44. Chemistry

    If 36 g of potassium chloride are dissolved in 100mL of water at 40 C to form a saturated solution, how many grams of potassium chloride would be required to form a saturated solution in 250 mL of water at the same temperature?

    asked by Anonymous on May 26, 2010
  45. Chemistry

    I am trying to figure out how to make 275 gallons of a 5% NaOH solution. I know that 275 gallons weighs 2294.875 lbs. How many lbs. of NaOH woul it take to make the above mentioned solution?

    asked by Jay on August 27, 2012
  46. College Algebra 2

    for the following equation state the value of the discriminant and then describe the nature of the solution 11x^2+9x+11=0 What is the value of the discriminant? Which one of the statements below is correct? A. The equation has two imaginary solutions. B.

    asked by Lisa H on September 8, 2009
  47. ENGLISH

    Help:Please change show me anthing that I need to do, by placing the correct form at the it the bottom of the essay. Topic: What is your biggest regret in life? My Biggest Regret Everyone has had regrets about something in life. The regrets could have been

    asked by Angel on November 12, 2009
  48. Stupid Chemistry

    Ok, blonde moment here, Kb is the same as Ka but just for bases and Ka is for acids correct? right. Ka is the ionization constant for acids, Kb is the ionization constant for bases. BUT, we can change one into the other this way. KaKb = Kw. So if you are

    asked by Taasha on August 4, 2007
  49. Chemistry

    What is the pH of the solution when 50.00 mL of 0.250 M HNO3, nitric acid, has been treated with 25.00 mL of 0.400 M NaOH? Below is the work I performed, however, my professor deemed the [H3O] as incorrect. Where did I go wrong? [NaOH] = .025 L x 0.400 M =

    asked by Alex on March 30, 2016
  50. Measurements

    how do you solve this Area of a polygon: A=1/2aP Perimeter: P=ns It is a hexagon (6 sides) the sides measure 8cm therefore I have a perimeter measuring P=6(8)=48 RIGHT? and for the area I have A=1/2 the apothem= 4 square root of 3 and the P= 48 so, A=1/2(4

    asked by RMZ on February 5, 2010
  51. Chemistry

    A saturated solution is prepared by adding excess PbI2(s) to distilled water to form 1.0L of solution at 25oC. The concentration of Pb+2 in the saturated solution is found to be 1.3*10-3 M. Calculate the Ksp for PbI2(s) in water at 25 °C R/

    asked by Samboni on December 22, 2014
  52. physics

    Please help I cant breath with this qn, due today exam pending, thanks for taking your time to help. The human outer ear contains a more-or-less cylindrical cavity called the auditory canal that behaves like a resonant tube to aid in the hearing process.

    asked by chiongo on November 3, 2014
  53. English

    Why does Douglass state that “education and slavery were incompatible with each other”? There wasn’t time for slaves to go to school; they had too much work to do Being educated meant that slaves might question their existence and try to escape

    asked by Kayla on December 10, 2015
  54. Physics

    Describe situations where no work is done and situations where work would be done?

    asked by Ethan on December 14, 2010
  55. Physics

    A box of mass 10.9 kg with an initial velocity of 2.01 m/s slides down a plane, inclined at 38◦ with respect to the horizontal. The coefficient of kinetic friction is 1. The box stops after sliding a distance x. The acceleration due to gravity is 9.8

    asked by Unknown on December 2, 2014
  56. RE: PHYSICS

    A stationary block explodes into two pieces L and R that slide across a frictionless floor and then into regions with friction, where they stop. Piece L, with a mass of 2.0 kg, encounters a coefficient of kinetic friction µL = 0.40 and slides to a stop in

    asked by COFFEE on February 26, 2007
  57. probability/statistics

    You roll two fair dice, a white one and a red one. a. find P(5 or 6 on the white die and odd number on the red die). b. Find P(odd number on the white die nad 5 or 6 on the red die). c. Find P(5 or 6 on the white die nad 5 or 6 on the red die. Please show

    asked by Harley on June 27, 2011
  58. Physics

    I have this very confusing two part question that i am having trouble understanding. For the first question i first created a free body diagram to show the forces acting on both the boxes. However i am unsure of what to do after this since i don't

    asked by joe on February 7, 2017
  59. Physics

    A physics student uses a ramp to slide a 350 kg piano onto the back of a pickup truck. The box on the back of the truck is 81 cm above the ground and the planks are 3 m long. An average force of 1500 N is required to slide the piano up the planks. a)

    asked by Hanna on April 11, 2019
  60. physics

    a student could either pull or push , at an angle of 30 deg from the horizontal, a 50-kg crate on a horizontal surface, where the coefficient of kinetic friction between the crate and the surface is .20 the crate is to be moved a horizontial distance of

    asked by melissa on January 26, 2008
  61. Chemistry

    I am very confused with this problem, i tried using the percent yeild but i got stuck. Can u help? The O'Keefe's have 75 gallons of cucumbers for pickling. The 1.5 M KOH solution costs $3.50 per liter, 9 M H2SO4 solution costs $8 per liter, and ethanol

    asked by Ingrid J. on October 13, 2010
  62. Physics

    A snowmobile does 400J of work in towing a sled to the top of a hill. During th etrip up the hill, it took 50J to overcome the work of friction. What is the potential energy of the motionless sled at the top of the hill? Well I know that the formula for

    asked by Elizabeth on November 15, 2007
  63. chem

    How many grams of CO2 are produced when 11.47 moles hexane combust? My work:I balanced the equation like so C6H14 + 19/2 O2 ==> 6CO2 + 7H2O My teacher taught us the 19/2 was valid My work: 11.47 mol C6H14 * 6 CO2/1 mol C6H14 * 44g/mol/1 mol CO2 = 3, 028 g

    asked by Sarah on April 1, 2015
  64. Physics

    For launching a satellite into orbit around earth, would the proper conservation of energy formula be: Epi + Eki + O work = Epf + Ekf? Would work = 0 for launching a satellite? And, would Epi = -Gm1m2/radius of earth or would it just equal 0 (because we

    asked by Anna on February 28, 2013
  65. physics

    - A 1600-KG ELEVATOR accelerates downward at 2.00 m/s2 starting from rest. how much work does gravity do on the elevator? b) how much does tention in the elevator cable do on the elevator? c) use the work kinetic energy theorem to find the kenetic energy

    asked by Anonymous on November 29, 2010
  66. Socials

    Did the industrial revolution improve conditions for women? No, the industrial revolution did not improve living conditions for women. The women had to work very hard, for long hours to receive payment. They often had to work in dangerous conditions. Even

    asked by Sara on November 30, 2009
  67. Vertex edge graphs

    OK so my friend asked me how to solve this question i didn't know how but tried anyway and got the right answer but i want to know if i did it correctly 6 boys are working on 5 go carts. each boy works on more than one cart. it takes one weekend to make

    asked by MAT on April 1, 2012
  68. Genetics

    1) For each of the following partial diploids, give the cellular phenotypes for A and B. Explain. A B a. for a negatively regulated gene: F’pR- poA-B/ pR po-AB- F’p-R p-oA-B/ pR- poAB- b. for a positively regulated gene: F’pR- poA-B/ pR po-AB-

    asked by Tommy on November 18, 2011
  69. CHEMISTRY

    You carefully weigh out 20.00 g of CaCO3 powder and add it to 81.00 g of HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 92.80 g . The relevant equation is

    asked by kaba on February 19, 2017
  70. Chemistry

    30g of the palm shell were mixed with 15ml H3PO4 and 100ml of distilled water in a 250ml conical flask.The concentration of H3PO4 solution was 2.2M, from question,how to prepare those from ortho phosporic acid (98g/mol).Do help me, is it need to make a

    asked by Merlina_Lyn on February 1, 2013
  71. Chemistry (Check)

    True or False? In a structural formula a shared pair of electrons is represented by two dashes. Is this True? Fill in the blank Structural formulas show the arrangement of____________ in molecules. is it electrons? A shared pair is represented by two dots.

    asked by Bryan on November 29, 2006
  72. Chemistry

    Balance the ewuation using thr oxidation number method Here is what i did Au+ + H20---> Au2O3 + Au + H+ Au+ losses 3e- to form Au2O3-->oxidation Au+ gets reduced to for Au therefore the balanced chemical equation is 3Au+ + 3H20---> Au2O3 +Au +6H+ Does it

    asked by Adeola on June 13, 2010
  73. child growth and development

    Dr.Smartz has been intensely engaged in a study of the twins Annette and Brad for the last two years. You would most accurately sayb that Dr.Smatz is engaged in a/an? A. gender experiment B. correlational study C. cross-lagged method D. case study

    asked by Anonymous on June 8, 2010
  74. English

    1) As I know you are a retired teacher, I'd like to know your opinion on that. I really need your help. The headmaster keeps giving me classes with a very poor knowledge of the language and my students don't like my method of teaching. What do you think I

    asked by Henry2 on October 12, 2011
  75. reading

    Listening to a CD has been the method of listening to music for the last 20 years. Now downloading on Itunes and sharing MP3 files has become the wave of the future. Do you think this technology is a revolution and advancement in music or is it a downfall

    asked by harry on October 24, 2007
  76. math

    HELP HELP I need to work this questions. Six hundred pennies are placed in a row. If every other penny is replaced by a nickel and every third coin us replaced by a quarter, what is the final value of the 600 coins? Take twelve pennies. Replace every other

    asked by leslie on April 18, 2007
  77. home economics

    Graphing : Mooville is a small town in texas. assume that beef is a normal good. what happens to the amount of beef dfemanded or supplied in each of the following cases? draw a separate demand and supply curve for each part of this question, label the

    asked by Miriam on March 2, 2008
  78. English & Composition!

    This is my conclusion to my surveillance essay. Can someone help me revise this or suggest any changes. I tried to make the conclusion as mature as possible to be a college/ university type of conclusion. Any further suggestions would be much appreciated.

    asked by Diana on October 31, 2015
  79. Math

    One afternoon Mr. and Mrs. Baxter and their 3 children were busy working outside in their garden. Mrs. Baxter was feeling hungry, so she went inside to the kitchen where there was a plate full of cookies. She ate 1/6 of the cookies and then went back to

    asked by dfas on May 7, 2019
  80. CHEM

    A metal, M, of atomic mass 91 amu reacts with fluorine to form a salt that can be represented as MFx. In order to determine x and therefore the formula of the salt, a boiling point elevation experiment is performed. A 9.05-g sample of the salt is dissolved

    asked by John on July 8, 2012
  81. English

    Can you please check these sentences for me? It's really urgent. 1) At eighteen you can get married without your parents' permission. At eighten years of age/When you are eighteen ... (are they both correct?) 2) You can't get married without your parents'

    asked by Mike on March 30, 2011
  82. Physics

    Okay, I'm really confused in general. My question says: "A solid piece of clear transparent material has an index of refraction of 1.61. If you place it into a clear transparent solution and it seems to disappear, approximately what is the index of the

    asked by Jo on March 27, 2017
  83. Chemistry - Science

    A 6.70 g sample of a binary mixture of silver (I) nitrate and sodium nitrate is completely dissolved in water to make a solution. Aqueous barium chloride is then added to this solution in excess to form 3.60 g of silver chloride solid. What is the percent

    asked by Anonymous on March 25, 2014
  84. AP Chemistry

    a student titrates three samples of 0.3% hydrogen peroxide solution made from a bottle of 3% hydrogen peroxide solution dated 10/31/2007. would you expect the calculated molarities of the samples to be higher or lower than the following values: trial 1:

    asked by Gabriella on October 5, 2013
  85. Pre-Calculus

    A drug is administered every 6 hours. The kidneys eliminate 55% of the drug over that period. The initial dose is 210 mg. Repeated dosage is 70 mg What is the “Difference equation”? Find the first seven terms of the of the solution sequence. Round to

    asked by Anonymous on May 19, 2016
  86. Pre-Calculus

    A drug is administered every 6 hours. The kidneys eliminate 55% of the drug over that period. The initial dose is 210 mg. Repeated dosage is 70 mg What is the “Difference equation”? Find the first seven terms of the of the solution sequence. Round to

    asked by Anonymous on May 19, 2016
  87. Probability

    Part A: The difference A\B of two subsets A and B of is the set A∩( \B) of all points of which are in A but not in B. Show that if A, B ∈ F , then A \ B ∈ F . Part B: The symmetric difference A △ B of two subsets A and B of is defined to be the set

    asked by Lara on October 9, 2018
  88. Discrete Math: Equations of Line in a Plane

    I'm stuck on these questions. Can you please show me a step by step solution? 20) For each of the following, find a normal vector, a direction vector, and a point of each line. Note, normal vector means perpendicular to the direction vector. a) 3x - 6y =

    asked by Anonymous on March 12, 2008
  89. Math: Equations of Line in a Plane

    I'm stuck on these questions. Can you please show me a step by step solution? 20) For each of the following, find a normal vector, a direction vector, and a point of each line. Note, normal vector means perpendicular to the direction vector. a) 3x - 6y =

    asked by Anonymous on March 10, 2008
  90. Health Physics

    A machine is used to either do work or to convert energy. To find the efficiency of a machine, one must compare the power input to the machine to the power output of the machine. What does thepower take into account in addition to the amount of work done

    asked by Shannon on January 22, 2010
  91. Physics

    A machine is used to either do work or to convert energy. To find the efficiency of a machine, one must compare the power input to the machine to the power output of the machine. What does thepower take into account in addition to the amount of work done

    asked by Anonymous on January 24, 2010
  92. Health Physics

    A machine is used to either do work or to convert energy. To find the efficiency of a machine, one must compare the power input to the machine to the power output of the machine. What does thepower take into account in addition to the amount of work done

    asked by Shannon on January 23, 2010
  93. English

    1. He does a volunteer work once a week. 2. He does volunteer work once a week. 3. He does the volunteer work once a week. 4. He does two volunteer works every week. 5. He does some volunteer work every week. 6. He does some volunteer works every week.

    asked by rfvv on October 10, 2010
  94. Chemistry

    Solution Density(g/L) Boiling Point Freezing Point 1.0m C2H5OH(aq) 1.05 100.5 -1.8 1.0m HCI(aq) 1.03 101.0 -3.7 1.0m NaCl(aq) 1.06 101.0 -3.7 2.0m NaCl(aq) 1.12 102.1 -7.4 1. Which properties in the table are colligative properties? 2. What can you

    asked by Nicole on January 20, 2011
  95. 11th grade ..CHEMISTRY

    This is a Quantitative Redox titration. (KMnO4) = 1.8 G.. 500 ML after the experiment we had to record the data of the 3 trials. 1. Trial - VolUme FeSO4 = 10.00 Ml - VOlume KMnO4 11.00 Ml 2. Trial - VolUme FeSO4 = 10.00 ML - VOlume KMnO4 11.15 Ml and we

    asked by Komal on November 5, 2008
  96. chemistry

    In protein precipitation, two liters of 5mM buffer solution with pH 5.2 is needed in the isolation of albumin. Which among the buffer solutions is best fitted for the said purpose?justify your answer. a. acetate buffer with pka=4.73? b. tris-aminomethane

    asked by jen on August 26, 2018
  97. statistics

    Suppose a researcher gathered survey data from 19 employees and asked the employees to rate their job satisfaction on a scale from 0 to 100 (with 100 being perfectly satisfied). Suppose the following data represent the results of this survey. Assume that

    asked by Tony on July 8, 2013
  98. physics

    The velocity of a particle constrained to move along the x-axis as a function of time t is given by: v(t)=-(13/t_0) sin(t/t_0). a)If the particle is at x=4 m when t = 0, what is its position at t = 5t_0. You will not need the value of t_0 to solve any part

    asked by bob on October 21, 2010
  99. MATH

    Answer the following: (A) Find the binomial probability P(x = 4), where n = 12 and p = 0.30. (B) Set up, without solving, the binomial probability P(x is at most 4) using probability notation. (C) How would you find the normal approximation to the binomial

    asked by Jennifer on November 11, 2011
  100. chem

    U have to show the partial charges and bond dipoles on my ;lewis structure of CH3Cl For the partial charges would I just have a negetive sign as the superscript of Cl and a positive sign and the superscript of C ? What exactly must I do to show bond

    asked by Lena on July 8, 2009

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