Most popular questions and responses by Sonya
  1. Physics

    A force of 800 N stretches a spring a distance 0.200 m horizontally. a) What is the potential energy of the spring when it is stretched 0.200m b) What is its potential energy when it is compressed 5.00cm This is a conservation of energy problems. The

    asked on May 20, 2014
  2. math

    Sue stacked one box onto another. The bottom box had the height of 2 1/3 feet and the top box had the height of 3 2/3 feet. How tall were the stacked boxes?

    asked on June 19, 2014
  3. Chemistry

    Calculate the concentration of IO3– in a 9.23 mM Pb(NO3)2 solution saturated with Pb(IO3)2. The Ksp of Pb(IO3)2 is 2.5 × 10-13. Assume that Pb(IO3)2 is a negligible source of Pb2 compared to Pb(NO3)2.

    asked on February 20, 2014
  4. History

    How did the Crimean War change life in Russia? a. Russia's defeat in the war sparked calls for political and social reform. ********* b. Russia's investment of wealth and the loss of lives in the war led to a crippling depression. c. Russia's proven

    asked on May 24, 2017
  5. Social Studies

    How did the Crimean War change life in Russia? a. Russia's defeat in the war sparked calls for political and social reform. ********* b. Russia's investment of wealth and the loss of lives in the war led to a crippling depression. c. Russia's proven

    asked on May 24, 2017
  6. Business management quest

    A college professor told her students, “The purpose of a management course is to teach students about management, not to teach them to be managers.” Do you agree or disagree with this statement? Why or Why not? Also, is efficiency and effectiveness

    asked on December 3, 2011
  7. Physics

    A horizontal pipe narrows from a diameter of 10 to 5 cm. For an incompressible fluid flowing from the larger diameter to the smaller: Question 5 options: 1.the velocity and pressure both increase. 2.the velocity increases and the pressure decreases. 3.the

    asked on August 10, 2011
  8. Physics

    A small block with a mass of m = 0.120 kg is attached to a cord passing through a hole in a frictionless, horizontal surface. The block is originally revolving at a distance of 0.40 m from the hole with a speed of 0.70 m/s. The cord is pulled from below,

    asked on May 20, 2014
  9. math

    Which two numbers have a product of 56 and a quotient of 14

    asked on April 21, 2018
  10. Conceptual Physics

    A paperback is 106mm in width. What is the width in centimeters? In meters? (I need to see this in steps)

    asked on January 14, 2016
  11. CIS

    Draw a flowchart or write pseudocode to represent the logic of a program that allows the user to enter a value. The program multiplies the value by 10 and outputs the result.

    asked on October 11, 2012
  12. Statistics

    A doctor want to estimate the HDL cholesterol of all 20- to 29- year old females. how many subjects are needed to estimate the HDL cholesterol within 3 points with 99% confindence assuming s=15.8 based on earlier studies?

    asked on June 12, 2015
  13. physics 3U

    An arrow is accelerated for a displacement of 75cm [fwd] while it is on the bow. If the arrow leaves the bow at a velocity of 75m/s [fwd], what is the average acceleration while on the bow?

    asked on July 6, 2011
  14. Chemistry

    Calculate the molarity of an aqueous NaOH soultion if 32.00ml of it is required to titrate. 0.6789 g of oxalic acid to phenolphthalein end point. The balanced chemical equation is H2C2O4 + 2NaOH-> Na2C2O4 + 2H2O

    asked on December 6, 2010
  15. CIS/Visual Logic

    Design an application that accepts 10 numbers and displays them in descending order. Us an array to store the numbers and Bubble Sort to sort the numbers.

    asked on November 25, 2012
  16. Chemistry

    Determine [Zn2 ], [CN–], and [HCN] in a saturated solution of Zn(CN)2 with a fixed pH of 2.640. The Ksp for Zn(CN)2 is 3.0 × 10–16. The Ka for HCN is 6.2 × 10–10. I need to know what equations to use to find the answer not just how to get it

    asked on February 23, 2014
  17. chemsitry

    you start with 150.0g of pentane and 500.0L of O2. how many grams of H2O will you make?

    asked on March 29, 2013
  18. math

    winnie has 7 trophies she wants to display in arrays. how many different arrays are possible? explain.

    asked on February 5, 2013
  19. math

    You fire your potato gun horizontally from shoulder height, which is 190 cm above the ground. The potato strikes the ground 30 m away from you. What was the initial speed of the potato?

    asked on September 15, 2014
  20. Geometry

    Jason designed an arch made of wrought iron for the top of a mall entrance. The 11 segments between the two concentric circles are each 1.25 m long. Find the total length of wrought iron used to make the structure. Round the answer to the nearest meter.

    asked on January 14, 2013
  21. Chemistry

    Determinne the amount of Dextrose and NaCl in 500ml of 5% DNS. (The solution is 5% in regards to dextrose and 0.9% in regards to NACl.)

    asked on March 14, 2011
  22. Chemistry

    calculate the theoretical yield (in grams) of the solid product, assuming that you use 1.0 g FeC2O4×2H2O and that oxygen is the excess reactant. FeC2O4×2H2O (s) + O2(g) ---> FeO(s) + H2O(g) + CO2(g) Its balanced equation is 2FeC2O4×2H2O (s) + O2(g)---->

    asked on October 14, 2010
  23. chemistry

    one piece of copper metal at 105 C has twice the mass of another copper piece at 45 C. What is the final temperature if these two pieces are placed in a calorimeter. Specific heat of copper is 0.387 J/g.K.

    asked on October 20, 2014
  24. AP Chem

    The electron-domain geometry and molecular geometry of iodine trichloride are __________ and __________, respectively. The answer is trigonal bipyramidal, T-shaped, respectively- I do not understand the approach PLEASE EXPLAIN HOW YOU GOT THE ANSWER!!!

    asked on January 29, 2013
  25. Physics _ Please please help

    The cross-sectional area of the U-tube shown below is uniform and is equal to one square centimeter (1.00cm^2). One end is open to the atmosphere. Atmosphere pressure may be taken as P1=1.01 * 10^5 Pa. The other end of the U-tube is connected to a pipe in

    asked on August 10, 2011
  26. algebra

    Find the x-intercept and the y-intercept of the graph of: 4x-2y=8 a. (2, -4) b. -4;2 c. (4, -2) d. 2;-4 I'm stuck between a and d. anyone helpp?

    asked on November 30, 2010
  27. Math

    I need help please A computer can execute 64 instructions per second. How many instructions can it execute in 10 minutes? Multiply 3 1/6 x 9/11 x 6/17. Write the answer in simplest form Divide 6/25 / 2/15. Write the result in simplest form.

    asked on February 9, 2008
  28. chemistry HELP

    Use the following information to identify element A and compound B, then answer questions a and b. An empty glass container has a mass of 658.572 g. It has a mass of 659.452 g after it has been filled with nitrogen gas at a pressure of 790. torr and a

    asked on October 29, 2006
  29. Algebra 2

    What is the angular speed in radians per second of the hour hand of a clock? If the hand is 5cm long, how fast is the tip moving in millimeters per second?

    asked on April 22, 2012
  30. chemistry

    how many mL of 0.15 M NaOH solution are required to neutralize 35.00 mL of 0.22 M HCl

    asked on November 11, 2011
  31. algebra 2

    Find the x-intercept and the y-intercept of the graph of: 4x-2y=8 a. (2, -4) b. -4;2 c. (4, -2) d. 2;-4 I'm stuck between a and d. anyone helpp?

    asked on November 30, 2010
  32. Physics

    (a)A car travels exactly once around a circle of radius 5.0 m at constant speed of 3.0 m/s. What is the car’s average velocity (magnitude and direction) during this interval? Explain/justify. (b)Repeat the calculation of average velocity if the car

    asked on September 19, 2009
  33. Physics

    A car is traveling over the top of a hill, which we will model to be a piece of a circular arc of radius R. For each case below, draw careful to-scale motion maps and use them to construct the velocity vectors at the following three points: the top of the

    asked on September 19, 2009
  34. Arithmetic

    How can we put parentheses around the following expression so that the answer is 105? 9 + 8 x 7 - 6 x 5 + 4 x 3 + 2

    asked on November 18, 2008
  35. algebra

    I am given the perimeter of the rectangle. It is 96cm. The length is 3 times the width. What are the measurements of the 4 sides of the rectangle? I need the formula please.The answer is 12 and 36, I think.

    asked on May 5, 2008
  36. Program Logic Design

    create a flowchart that shows the logic for a program that generates a random number; then ask the user to think of a number between 1 and 10. The display then randomly generated number so the user can see whether his or her guess was accurate.

    asked on October 19, 2012
  37. Humanities/World Literature

    1.Why does the demon collect her lovers' rings in _1001 Nights_? 2.What is the purpose of Shahryar and Shahzaman's journey in _1001 Nights_?

    asked on March 4, 2012
  38. Math

    In solving the eqaution(x+4)(x-4),Eric stated thatthe solution would be x+4=33=>x=29 or (x-4)=33=>x=37 However, at least one of these solutions fails to work when substituted back into the original eqaution. Why is that?Help Eric to understand better,solve

    asked on February 16, 2011
  39. physics

    A 400 calorie quantitiy of heat is added to 20 grams of water and as a result, the water reaches a final temp of 70 deg. C. The starting temp of the water was most nearly _____ deg C.

    asked on November 12, 2010
  40. Algebra1

    when using multiplying by 1 to find an expression equivalent to 18/7 with a denominator of 28x, the equivalent expression that I get is 4x/28x and i am being told that that's wrong

    asked on July 25, 2008
  41. math

    simple form 3 ¾ / 60,000= 41 ½ / 3 ¾ A computer can excute 36 instructions per microscecond. How many instructions can it execute in 4 min?

    asked on February 5, 2008
  42. ashford unversity

    Which of the following is true regarding an SEP?

    asked on May 20, 2013
  43. Physics _ College

    A 50 cm long hollow glass cylinder is open at both ends and is suspended in air. A source of sounds that produces a pure frequency is placed close to one end of the tube. The frequency is placed close to one end of the tube. The frequency of the sound

    asked on August 10, 2011
  44. english

    describe your experience with credit card in a brief paragraph using 5 adverb and 5 adjective

    asked on September 22, 2010
  45. Math - please double check me

    There are 42 accounting classes with 31 students in each class. Estimate the total number of students in the accounting classes. a. 1200 b. 900 c. 1600 d. 1500 answer: c One kilometer is equal to 1000 meters. What fractional part of a kilometer is 500

    asked on March 28, 2008
  46. univ/com/155

    write a paragraph of instructions on the writing process for future com/155 students.include the steps in the writing process.

    asked on April 26, 2012
  47. A and P

    The following is a template strand of DNA with a start codon(=!!!) and a stop codon(=???): !!!TCGGGCTACAAAACAAATCAACGGGGCTCGCAAACAAATAAACGG??? What is its mRNA nucleotide sequence? Indicate the product of this DNA segment/gene. What is the product’s

    asked on June 10, 2011
  48. Literature

    What literature do you consider to be part of the United States' current literary canon, and why? How do those selections reflect the cultural tradition of the United States? What do you consider to be part of your personal literary canon?

    asked on April 3, 2011
  49. algebra 2

    3. Identify the range of y=|x|-4 A. [x|x≥4] B. [y|y≥-4] C. [y|y≥0] D. all real numbers I'm confused about this question, any help???

    asked on November 30, 2010
  50. math

    Please explain how to get the answer. At the animal shelter, 1/3 of the animals are dogs, 2/12 are cats, and 19 are other animals. How many animals are at the shelter? I said 1/3x + 2/12x + 19 = 4/12x + 2/12x = 19= 6/12x = 19 1/2x = 19 x =

    asked on May 13, 2010
  51. poetry

    i need to write an acrostic poem for english using the quote:"do all lawyers defend negros". its from to kill a mocking bird and i need to write a phras starting with each letter in the quote and i cnt think of anything

    asked on January 12, 2010
  52. Math- help please

    what is the greatest common factor of 245, 385, and 539

    asked on March 27, 2008
  53. Communication Stratgies

    How can you write a 350 word memo about 25 students losing their deposit on a spring trip?

    asked on November 25, 2007
  54. algebra

    (2a+4b)-(3a-b)when and how do u know to change the signs? It might help to think of it as below. (2a+4b)-1(3a-b) Mutliply the last term by the -1. 2a+4b-3a+b = -a+5b or 5b-a I hope this helps. Thanks for asking.

    asked on April 17, 2007
  55. solution making/ chemistry/biotech

    how much of a .2M solution can you make with 340 g of calcium carbonate ( MW=100.0869) Do I multiply 340g by 1mole/MW

    asked on September 30, 2014
  56. math

    A bicyclist rides off a roof at 15.2 \frac{m}{s}. The roof is 9.8 m above the ground. How far from the edge of the building does the bicyclist land? Use SI units in the second box.

    asked on September 15, 2014
  57. AP Chem please help!

    The electron-domain geometry and molecular geometry of iodine trichloride are __________ and __________, respectively. The answer is trigonal bipyramidal, T-shaped, respectively- I do not understand the approach

    asked on January 29, 2013
  58. chemistry

    a container has the dimensions of 2.5 m x50 cm x60 mm. It is filled with water at 0.0 degrees celsius,how many kilocalories will be necessary to heat the water to boiling point?

    asked on January 20, 2013
  59. Math

    If I make a porch that is 60 feet in length, 50 feet wide and 4 inches deep, how do I calculate the area, perimeter, and surface area of the porch? Can I multiply feet and inches in the same equation?

    asked on October 15, 2012
  60. Economics

    The company estimates the probability of no damage to be 0.60, the probability of damage between $0 and $10,000 to be 0.25, and the probability of damage between $10,000 and $25,000 to be 0.12. If the company wants to make a profit of $200 above the

    asked on July 1, 2012
  61. chemistry

    Sorryy but I still don't understand will you show the calculations for my previous question

    asked on November 11, 2011
  62. physics

    A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m

    asked on November 12, 2010
  63. physics

    A certain wave is incident on an interface at an angle of 40 deg. The wave emerges into the other material at an angle of 30 deg. Crossing the interface, the wave: a. increased speed b. reduced speed c. maintained constant

    asked on November 12, 2010
  64. physics

    Graph #1 is a parabola. Graph #2 is a hyperbola. a. Only graph 1 may possibly represent Hooke's law b. Only graph 2 may possibly represent Hooke's law c. neither

    asked on November 12, 2010
  65. Physics

    A spaceship approaches Starbase Beta with an initial velocity moving in the +x direction. The ensign sets the ship’s computer to initiate a braking program starting at time t = 0. After this time the computer controls the ship’s x-velocity according to

    asked on September 19, 2009
  66. History

    Historians often encounter difficulties when researching and interpreting the past. How does this influence the way people view history?

    asked on April 28, 2009
  67. math

    x^3-4x-2 [2,3] we have to use the intermediate value thereom. not sure how to do this.

    asked on January 24, 2008
  68. Communication

    Identify a source of miscommunication with which you are familar. How can this type of miscommunication be effectively addressed or completely avoided?

    asked on December 11, 2007
  69. Communication strategies

    The trip for mexico during spring break has been cancelled due to the bankruptcy of the bus company. You must tell 25 of your classmates that the trip has been cancelled and that they have lost their $100 deposit.

    asked on November 25, 2007
  70. Psychology

    How do the behaviors that you listed relate to those reported by Sternberg and his colleagues? What behaviors did you list? What did Sternberg and his colleagues report? I searched Google under the key words "intelligence behavior Sternberg" to get these

    asked on January 26, 2007
  71. solution making/ chemistry/biotech

    You have 750ml's of a solution that was originally made up using a 20X stock. How much stock was used? I think the answer is 3.75 by dividing 750/20 but I am not sure

    asked on February 23, 2015
  72. math

    A train is going directly South at 60 mph. An action-movie star is atop the train, running North at 6 mph. Relative to someone standing on the ground, how fast is the action-movie star moving, and in what direction? North is positive and South is negative.

    asked on September 15, 2014
  73. AP Chemistry- PLEASE HELP

    The electron-domain geometry and molecular geometry of iodine trichloride are __________ and __________, respectively.

    asked on January 29, 2013
  74. Algebra 106

    $625.00 investested in retirement fund for 10 years @ 3.84% compounded

    asked on November 10, 2012
  75. math

    what is the stopping distance for a car traveling at 40 mph

    asked on May 2, 2012
  76. Humanities/World Literature

    Why, according to the Quran, does God cause Israel to wander the desert for 40 years?

    asked on March 4, 2012

    How did World War II affect American sensibilities including the way Americans viewed the war and themselves?

    asked on January 17, 2012
  78. algebra

    Determine whether each pair of equations represents parallel lines 3x=5y-2 and 10y=4-6x

    asked on June 9, 2011
  79. umuc

    sample of 80 people randomly asked in casino shows that average lost per person is $160 with a sample standard deviation s=$40. Based on this data create a 95% confidence interval for population mean.

    asked on July 18, 2010
  80. Genetics/Biology

    Recombination frequencies a. arise from completely random genetic exchange. b. are the same for all genes. c. decrease with distance. d. are the same for cis and trans heterozygotes.

    asked on March 18, 2010
  81. math214

    Joe’s baseball team sold 200 chances to win a $250 set of golf clubs. What is the expected value of a single chance if only one chance wins?

    asked on March 9, 2010
  82. Math

    1) If you have an inhomogeneous, linear equation like f''(x) + f'(x) + f = x you can find the general solution by finding a particular solution (with no constants of integration)to this equation and adding it to the general solution to the homogeneous

    asked on September 19, 2009
  83. History

    Compare the European settlements in the Chesapeake area and New England in terms of goals, governments, social structures, and religions. What similarities do you find most remarkable? What differences do you find interesting? information please

    asked on May 2, 2009
  84. Math -please check me

    what is the perimeter of a rectangle if the length is 5/9 cm and the width is 2/9 cm? a. 5/9 cm b. 1 5/9cm c. 7/9 cm d. 1 7/9 cm the answer I got was 14/9 please help me.

    asked on March 28, 2008
  85. Math

    Please help Which of the following numbers are integers 2/3, 35, 0.093, -650, 42.5 Determine the maximum and minimum values of the following set of numbers 3. -36/7, -1, -2/3, 5/4, -5, 26/9

    asked on March 22, 2008
  86. Accounting 11

    What all goes on cash flow statement using an indirect method? How would it show on the sheet?

    asked on February 24, 2008
  87. Accounting 11

    I need help completing a statement of cash flow using the indirect method.

    asked on February 24, 2008
  88. Psychology

    List behaviors that you can think of that are characteristic of academic intelligence and behaviors that are characteristics of everyday intelligence. Please post your ideas and we'll be glad to help you. I searched Google under the key words "intelligence

    asked on January 26, 2007
  1. writing


    posted on May 21, 2018
  2. English

    lmaooo hoe?

    posted on May 21, 2018
  3. Math

    good lmao

    posted on May 21, 2018
  4. Plz help me.

    I promise you the answers 1. D 2.D 3.B 4.A 100% 4/4

    posted on March 21, 2018
  5. Math


    posted on October 7, 2017
  6. History


    posted on May 25, 2017
  7. Math

    7×4=28 28+18=46

    posted on December 14, 2016
  8. grade 11 maths plz help!!!

    The drama club plans to attend a professional production. From 10 to 35 students will go. There is a one-time handling fee of $3. each ticket costs $25 plus $2 surcharges. Write a linear function that models this situation. (show your work)

    posted on December 6, 2016
  9. Math


    posted on April 5, 2016
  10. Criminal justice

    Write a 700- to 1,050-word paper in which you describe the issues facing police departments in today’s society. Include a description of how local, state, and federal law enforcement agencies currently interact with the U.S. Department of Homeland

    posted on July 29, 2015
  11. Eth/125


    posted on April 21, 2015
  12. solution making/ chemistry/biotech

    so how would I find the percentage of that solution

    posted on October 2, 2014