Questions Asked on
June 22, 2012

  1. Chemistry(check)

    Please check for me. 1. For the reaction CH3COOH--->CH3COO + H+, which of the following statements is true? CH3COOH is a Brønsted-Lowry acid.

    asked by Anonymous
  2. English (check)

    Will someone please check my answers for me? 1. In Act I of Macbeth, the witches make predictions suggesting that Macbeth will one day be the king of Scotland.

    asked by anonymous
  3. Check 1 question.

    Help please!i'm not sure if i'm right. Honestly i'm not that confident about most of my work. In which of the following thermochemical equations would the deltaH be considered a heat of solution? C6H6 (s)--> C6H6 (l), deltaH = +9.87 kJ 2C8H18(l) + 25O2

    asked by Anonymous
  4. business math and statistics

    A simple interest calculation provides a useful estimate of what compound interest will be if(a) the dollar amount is small.(b) the dollar amount is large.(c) the term is long.(d) the term is short.

    asked by regina
  5. Chemistry

    When a mixture of 10 moles of SO2 and 15 moles of O2 was passed over a catalyst, 10 moles of SO3 was formed. how many moles of SO2 and O2 did not enter into combination?

    asked by Simran
  6. math

    A pencil box and a notebook together cost $6.28. The notebook costs $0.70 more than the pencil box. How much does the notebook cost? A) $4.19 B) $2.09 C) $3.49 D) $2.79

    asked by chchch
  7. Physics

    A jogger runs 145m. in a direction 20.0 degrees east of north (displacement of vector A) and then 105m. in a direction 35.0 degrees south of east (displacement of vector B). Using components, determine the magnitude and direction of the resultant vector C

    asked by :)
  8. math for the office professional

    last year the company you worked for did $232,000 in business. this year you anticipate an increase of 7% how much business do you expect to do this year?

    asked by Anonymous
  9. physics

    A 9.1 g ball is hit into a 98 g block of clay at rest on a level surface. After impact, the block slides 8.0 m before coming to rest. If the coefficient of friction is 0.60, determine the speed of the ball before impact.

    asked by Erin
  10. Will Someone please respond! Chem

    How would i find the following? I just need an explanation. I'm stuck. I have many other questions like this and i need to know how to do them. The specfic heat of ice is 2.05 J/g. In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the

    asked by anonymous
  11. physics

    aluminum jet wing is 30m long when its temperature is 20deg c.At what temperature would the wing be 5cm(0.05m) shorter

    asked by Anonymous
  12. Physics

    A mobile consists of two very lightweight rods of length l = 0.400 m connected to each other and the ceiling by vertical strings. (Neglect the masses of the rods and strings.) Three objects are suspended by strings from the rods. The masses of objects 1

    asked by Luca
  13. Physics

    A 0.22 calibre rifle shoots a bullet of mass 1.8 g with a muzzle velocity of 500 m/s. If the barrel is 25 cm long, what is the average force exerted on the bullet while it is in the barrel?

    asked by Aria
  14. Population growth

    The population P of a particular city, Metropia, is growing at a rate proportional to the current population. The population at time t years is modelled by the equation P = Aekt where A and k are constants. (a) With the aid of appropriate examples, explain

    asked by Sinha
  15. Physics

    A bomb is dropped from a plane flying at 4000 meters. The plane is flying at 80 m/s. How far, in a horizontal direction, did the bomb hit the ground?

    asked by Sarah
  16. Geometry

    In Euclidean geometry, the sum of the measures of the interior anglesof a pentagon is 540o. Predict how the sum of the measures of the interior angles of a pentagon would be different in spherical geometry.

    asked by Dillon
  17. College algebra

    A cyclist bikes at a constant speed for 18 miles. He then returns home at the same speed, but takes a different route. His return trip takes one hour longer and is 23 miles. Find his speed

    asked by Anonymous
  18. Physics

    Consider the motion of the rock in the figure below. What is the minimum speed the rock can have without the string becoming "slack"? (The rock is traveling in vertical circle. Assume that m = 1.6 kg and r = 0.48 m.)

    asked by Sierra
  19. physics

    A trapdoor on a stage has a mass of 20.8 kg and a width of 1.58 m (hinge side to handle side). The door can be treated as having uniform thickness and density. A small handle on the door is 1.41 m away from the hinge side. A rope is tied to the handle and

    asked by Tim
  20. algebra

    Daniel can plant an acre of corn in 6 hours. Working with Amanda, they can plant an acre of corn in 2 hours. How long would it take in hours for Amanda to plant an acre of corn by herself?

    asked by MAnny
  21. Statistics

    Three cards are drawn with replacement from a standard deck. What is the probability that the first card will be a spade, the second card will be a black card, and the third card will be a queen? Write your answer as a fraction or a decimal number rounded

    asked by Sonia
  22. Physics(Please respond)

    A system does 210 J of work on its environment and gains 80.6 J of heat in the process. Find the change in the internal energy of (a) the system and (b) the environment. ÄU = Q - W Where ÄU is the change in the internal energy of the system, Q is the

    asked by Hannah
  23. algebra

    The speed of a passenger train is 16 mph faster than the speed of a freight train. The passenger train travles 300 miles in the same time it takes the freight train to travel 220 miles. find the speed of each train

    asked by todd
  24. english

    The city council is meeting on Tuesday night to discuss the new park. Is this correct?

    asked by lisa
  25. Chemistry(explain Please)

    How would i find the following? I just need an explanation. I'm stuck. I have many other questions like this and i need to know how to do them. The specfic heat of ice is 2.05 J/g. In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the

    asked by anonymous
  26. Physics(Please help)

    The two strings have the same tension and mass per unit length, but they differ in length by 0.54 cm. The waves on the shorter string propagate with a speed of 41.7 m/s, and the fundamental frequency of the shorter string is 227 Hz. Determine the beat

    asked by Hannah
  27. Maths (Investments)

    Kate is thinking about investing $60 000 for 4 years. She deposits her money into an account which earns interest paid semiannually at a rate of 7% p.a. After 2½ years, the interest rate drops to 5.6% p.a. and stays constant for the remainder of the

    asked by Ajay Devgan
  28. Calculus

    Suppose a ladder of length 36 feet rests against a wall, and we pull the base of the ladder horizontally away from the wall. For a given distance x that we pull the ladder horizontally, let g(x) be the height of the ladder on the wall, under the assumption

    asked by Anonymous
  29. writimg-please check

    for my birthday, i asked for an MP3 player, but instead, my parents got me a telescope. When I finished my dinner, I went in my room to try it out. When I looked through it, I could see a girl that looked just like me but bigger and older. for a moment, i

    asked by Celest
  30. Physics

    A bicycle wheel of radius 0.2 m is spinning at a rate of 70 revolutions per minute.

    asked by Sierra
  31. physical Edu

    The rate of alcohol absorption is influenced by a. Body weight and emotional state. b. Gender and emotional state. c. Food intake and beverage preference. d. Speed of consumption and alcohol history. e. All of the above are correct. is it E

    asked by Andy
  32. Calculus

    Find the derivative of the function y defined implicitly in terms of x. y = sqrt(xy + 9) Please help! Thanks! :)

    asked by Anonymous
  33. math

    A rectangular field is to be enclosed with 1130 ft of fencing. If the length of the field is 65 ft longer than the width, then how long is the field? A) 380 ft B) 315 ft C) 335 ft D) 250 ft

    asked by chchch
  34. math

    how do I write 6y - 12 = -3x in standard form?

    asked by meg
  35. Physics

    A wooden plank with length L = 7.5 m and mass M = 104 kg is centered on a granite cube with side S = 2.0 m. A person of mass m = 64 kg begins walking from the center of the plank outward, as shown in the figure. How far from the center of the plank does

    asked by Annabelle
  36. CJS230

    Will someone please help me find a resourceful webiste to answer the following questions? What is an example of a state prison system? How might you explain the growth of state prisons? How can U.S. corrections professionals solve the problem of

    asked by Sade C
  37. management

    regarding management and leadership, which statement is most accurate?

    asked by lala
  38. Calculus

    Find all points on the graph of the function f(x) = 2 sin(x) + (sin(x))^2 at which the tangent line is horizontal. Consider the domain x = [0,2π).

    asked by Anonymous
  39. Finance 370

    what is the future value of $5,000 in a bank account for 7 years at 4 percent compounded bimonthly

    asked by anita
  40. math

    George Polya has a four-step process for Problem Solving. What is the first step?

    asked by chchch
  41. Physics question

    In coastal towns, breezes tend to blow offshore (from the land to the ocean) during the night and early morning, and onshore (from the ocean to the land) during the afternoon and evening. What factors primarily contribute to this effect? It can be more

    asked by Bobby
  42. algebra

    Find the number of ways the top four can finish in a race of nine people.

    asked by Manny
  43. Thanks Tutors

    To all the tutors here, i know i was suppose to ask a question from my homework, and this is a homework website, but i like to thank you for helping me with my homework for the past few months. With you guys help, i got 100% on my math test and

    asked by Losa
  44. art101

    what is neo classicism?

    asked by sarah
  45. trigonometric identities

    Prove the following trigonometric identities 1. tanx = sinx + sin^2x/cosx(1+sinx) 2. cos^3+(cosx)(sin^2x) = 1/secx

    asked by noel
  46. Art

    Can you please check these two sentences, Writeacher? Thank you. 1) Each answer must be developed in no more than ten lines. 2) Only a monolingual dictionary is allowed.

    asked by John
  47. math

    Alamo, Brushy, Chet, and Dolly are in an armadillo race. Chet is the slowest. Dolly is faster than Alamo, but slower than Brushy. Name the finishing order of the armadillos.

    asked by chchch
  48. Physics please help.

    At 265 K, the pressure of 0.0454 mol of an ideal gas is 1.42×105 Pa. What volume does the gas occupy? Please help!

    asked by Teresa
  49. Physics check my answer please

    The atmosphere on Mars is almost all carbon dioxide (CO2), and has a pressure of about 6.9×102 Pa, much less than that of Earth. At −22°C (a warm day on Mars), what is the mass of one cubic meter of the atmosphere? (Assume the atmosphere is completely

    asked by Maya
  50. maths

    factorise: a.) (a-b)^3+(b-c)^3+(c-a)^3

    asked by JOSHI
  51. Geometry

    I need help on a problem that's on formula for circumference. A circle has a circumference of 36 cm. find it's radius .but it says give an exact answer in simplest form and it says enter pi for the symbol of pie .

    asked by Nancy
  52. physical edu

    Motor vehicle accidents are the leading cause of death for people aged 4-33 years old. true right?

    asked by Andy
  53. physical edu

    Stimulant drugs cannot cause heart attack, stroke and sudden cardiac death. its true right? High blood sugars damage all the following, except ____ 1. the circulatory system, 2. kidneys (from processing too much sugar) 3. and stomach 4. and

    asked by Andy
  54. medical billing

    with cpt code 11750 modifier 59 could be used correct

    asked by Anonymous
  55. Physics

    In coastal towns, breezes tend to blow offshore (from the land to the ocean) during the night and early morning, and onshore (from the ocean to the land) during the afternoon and evening. What factors primarily contribute to this effect? It can be more

    asked by Bobby
  56. geometry

    show that (-3, 1) and (3, -1) and (1, 3) are the vertices of an isosceles triangle. find its area. please include explanation. this is really frustrating please help. thanks alot! :)

    asked by peewee
  57. Foreign languages

    Writeacher, can you please check these sentences? 1) Joyce's Dubliners focus (or focuses/focusses??) on two recurrent themes:... 2) The epiphany is caused by a trivial gesture, an external event, or a bad situation, (is the comma necessary?) which leads

    asked by John
  58. math

    . In annual plant, exchange of gases takes place mainly through

    asked by Anonymous
  59. management

    according to -theory, employees compare the inputs and outputs of other employees doing similar jobs. unfavorable comparisons may lead to slacking off on their work or asking a supervisor for either an explanation or a raise.

    asked by lala
  60. Finance 370

    what is the future value of $5000 in a bank account of 7 years at 4 percent compounded semiannually

    asked by anita
  61. Calculus

    Find the derivative of the function y defined implicitly in terms of x. y = √(xy+ 9)

    asked by Anonymous
  62. to ms.sue-writing project part 1

    Narrative Prompts (choose only one) • Your aunt arrives with a huge box. You hear strange noises coming from the box. Write a story about what’s inside. • Although you asked for an MP3 player for you birthday, your parents gave you a telescope. But

    asked by Celest
  63. Physics!!!

    A cube of wood and a cube of concrete, each 0.17 m on a side, are placed side by side. One of the long faces of the rectangular prism formed by the two cubes is held at 17°C, and the opposite long face is held at 32°C. What is the total rate of heat

    asked by Emily
  64. physical edu

    CVD is the second leading cause of death for U.S. women. flase right?

    asked by andy
  65. to ms.sue-writing prpject

    plzzz check: for my birthday, i asked for an MP3 player, but instead, my parents got me a telescope. the telescope was old and rusty, so I put it aside. when i finished dinner, I took the telescope with me to my room. i dusted and cleaned the telescope so

    asked by Celest
  66. physical edu

    1. Cardiovascular disease is the number one overall killer of Americans – kills more than cancer, chronic respirator disease, accidents and diabetes combined! its False right? 2. Only 25% of Americans engage in physical activity at the intensity and

    asked by Andy
  67. physical edu

    Inactivity is considered the nation’s most common cardiac threat. is it true

    asked by Andy
  68. history of modern china

    was the expectation of chinese rulers during the taiping rebellion unrealistic?

    asked by Maria
  69. math

    what is the smallest number that can be formed using the digits 4,9,2,1,3,0 and 5 without repeating any of the subject?

    asked by joy
  70. accounting

    Central States Manufacturing produces a single product: Product 1222. The company has estimated that annual overhead expenses wll be $180,000 and production volume will be 20,000 units using 20,000 hours of labor. Overhead is applied to production based on

    asked by Lisa
  71. Algebra

    Fido gets 2 doggy treats every time he sits and 4 doggy treats every time he rolls over. Throughout the week, he has sat 6 times as often as he has rolled over. In total, he has earned 80 doggy treats. How many times has Fido rolled over??

    asked by Anonymous
  72. information literacy

    Which of the following sets of Library of Congress call numbers is in the correct order? A. PA 203 .B252 1971, P201 .A251 1977, PE205 .C253 1954, PH202 .H255 1965 B. P201 .A251 1977, PA 203 .B252 1971, PE205 .C253 1954, PH202 .H255 1965 C. PE205 .C253

    asked by tania
  73. PHYSICS please!!!!

    A cube of wood and a cube of concrete, each 0.17 m on a side, are placed side by side. One of the long faces of the rectangular prism formed by the two cubes is held at 17°C, and the opposite long face is held at 32°C. What is the total rate of heat

    asked by Kaitlyn
  74. Physics (one more)

    A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C? Someone on here has already answered this but it was wrong!

    asked by Kaitlyn
  75. algebra

    solve 5x^2-11=0

    asked by Ann
  76. Algebra

    9d+3d-1d=14

    asked by Anonymous
  77. math

    In a problem on percentages there are three quantities that are involved. These are the base, the amount, and the rate percent. Express the relation between them in the form of an equation and explain with examples how to find each one of them given the

    asked by leila
  78. Marketing

    A survey of local businesses firms to determine how they forecast sales will produce a variety of answers. Some will claim they do not use any format techniques to forecast sales. You know they must be using some approach, no matter how loosely defined.

    asked by Michelle
  79. social studies

    identify how common Hindsim is in India today

    asked by Anonymous
  80. It 230

    Write a 1,400- to 1,750-word paper with at least two references in which you describe the general type of WAN connections and network hardware that will be used to interconnect the offices.

    asked by Lakeisha
  81. Math

    If 1-cosA=5/13, prove that 25sinA(sinA - cosA)

    asked by Dipankar
  82. management

    the american federation of labor was formed under the leadership of who?

    asked by lala
  83. science

    what is the 4 part of the blood

    asked by leane hart garcia
  84. math

    what is the smallest number that can be formed using the digits 4,9,2,1,3,0 and 5 without repaiting any of the digits?

    asked by joy
  85. Art

    Who is the artist of the relief sculpture, The Last Judgment, In Vezelay? I can't find it anywhere.

    asked by Anonymous
  86. Calculus

    Find all points on the graph of the function f(x) = 2 sin(x) + (sin(x))^2 at which the tangent line is horizontal. Consider the domain x = [0,2π). Please help!

    asked by Anonymous
  87. matemática

    qual o resultado da transformação de 10/3 pi rad

    asked by amiraldo
  88. Physics

    A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C? 94.4cm3 was the answer I put and I was wrong. Can someone help?

    asked by Alec
  89. Physics

    A track has a height that is a function of horizontal position x, given by h(x) = x^3 + 4x^2 − 44x + 16. Find all the positions on the track where a marble will remain where it is placed. What kind of equilibrium exists at each of these positions? (Enter

    asked by James
  90. science

    please give me a part of the blood or function

    asked by leane hart garcia
  91. medicine

    a patient went in for removal of a malignant neoplasm of the ureter and kidney I think the procedure was an open one what would the cpt and ICD-9_CM Vol 3 code be.

    asked by Roger Kolb
  92. Physics(Please check)

    A gas, while expanding under isobaric conditions, does 660 J of work. The pressure of the gas is 1.40 x 105 Pa, and its initial volume is 1.70 x 10-3 m3. What is the final volume of the gas? Would I multiply the two values? W = p*dV = p(Vf - Vi)--for

    asked by Hannah