melody

Popular questions and responses by melody
  1. Chem

    how many millimeters of 0.200M FeCL3 are needed to react with an excess of Na2S to produce 1.38g of Fe2S3 if the percent yield for the reaction is 65.0%

    asked on March 8, 2015
  2. Maths

    The first term of an AP is 3 and the eleventh term is 18.find the number of terms in the progression if the sum is 81.

    asked on August 28, 2013
  3. Early Childhood Edu

    Which of the following BEST characterizes parents with interdependence goals? A They focus on individualism. B They never "baby" their children. C They encourage self-help skills during the first year. D They desire to maintain relationships.

    asked on December 19, 2019
  4. Maths

    On Saturday Derek picked pears from 32 trees. His picked average of 17 pears per tree. Sunday he picked more pears averaging 12 pears per tree. Over the whole weekend he picked an average of 14 pears per tree. How many trees did Derek pick from on Sunday?

    asked on July 25, 2013
  5. Early Childhood Edu

    Activities that have no single right outcome, and no possibility of failure are called __________ activities. A experimental B free thinking C open-ended D safe result

    asked on December 27, 2019
  6. Biology

    Why must the test tubes be thoroughly cleaned and dried when one part of the procedure is completed, before starting the next part of the procedure?

    asked on September 19, 2018
  7. ELA

    Hello! I just wanted to double check my answer to see if I am thinking correctly. Read this passage: The principle of the mercury boiler is the utilization of mercury between the fire and the under-boiler surface exposed to the flame — the mercury, when

    asked on May 15, 2018
  8. Math

    Mr McDonald has some ducks and goats in his farm. If he counted a total of 94 legs and 30 heads, find the number of ducks and the number of goats in his farm.

    asked on August 2, 2016
  9. Math

    A cheetah travels at a rate of 90 feet per second. The distance, d, traveled by the cheetah is a function of seconds traveled. Write a rule for the function. How far will the cheetah travel in 25 seconds?

    asked on March 15, 2018
  10. Math

    Convert the map scale to a unit rate. How many inches represent a mile? Show your work. Interpret the meaning of the unit rate. 3/10 in.=7/8 mile

    asked on November 11, 2017
  11. Math

    3a-4≥5 What is the answer?

    asked on November 4, 2017
  12. math

    regular milk has 4% butterfat. How many litres of regular milk must be mixed with 40 L of milk with 1% butterfat to have milk with 2% butterfat?

    asked on August 31, 2014
  13. Early Childhood Edu

    Many children who are enrolled in special speech and language treatment programs in lower elementary school: A have a history of middle ear infections. B come from middle-class neighborhoods. C did not attend preschools. D have parents who cannot read.

    asked on December 19, 2019
  14. business english

    many organizational situaions involve an audience that consists of a group of people. which is an appropriate approach to analyzing this type of audience? a. rely on the fact that generalizations are true for all members of a group b. disregard demographic

    asked on March 29, 2012
  15. Chemistry

    Based on crystal field theory, which of the following metal ions will not be colored when placed in an octahedral crystal field? Au+ Fe3+ Ag+ Au3+ Nb3+

    asked on November 9, 2011
  16. Social Studies (9th grade)

    How did the Trojan War affect people of its own time and our world today? Thanks so much:]

    asked on October 15, 2009
  17. Physics

    The coldest and hottest temperatures ever recorded in the United States are -80°F (211 K) and 134°F (330 K), respectively. What is the speed of sound in air at each temperature? _____m/s at -80°F _____m/s at 134°F

    asked on February 13, 2008
  18. Chemistry

    At 760◦C, Kc= 33.3 for the reaction PCl5(g)⇀↽PCl3(g) + Cl2(g) If a mixture that consists of 0.31 mol PCl3 and 0.22 mol Cl2 is placed in an 8 L reaction vessel and heated to 760◦C, what is the equilibrium composition of PCl5?Answer in units of

    asked on January 23, 2020
  19. US Government

    which amendment does not deal with military protection

    asked on December 11, 2019
  20. Geometry

    A circle with center O has a radius of 4 feet. Points A and B are placed on the circle so that . Find the length of the intercepted . Use 3.14 for , and round your answer to the nearest tenth. A. 1.1 feet B. 1.2 feet C. 1.4 feet D. 2.1 feet

    asked on December 15, 2016
  21. maths

    A cone is 6cm high and its vertical angle is 54degrees. Calculate the radius of its base. MY ANSWER tan54=x/6(let x be the radius) 6*tan54=x 6*1,3764=x 8,2584=x 8,2584/2=x 4,1292cm=x

    asked on September 20, 2016
  22. Sciene

    Portfolio: you will design an experiment to investigate the relationship between the number of coil loops and the strength of a solenoid. One you have an experiment plan, carry out your experiment and record data. After finishing conducting experiment,

    asked on April 1, 2015
  23. URGENT Physics help

    An attractive force of 7.2 N occurs between two point charges that are 0.10 m apart. If one charge is 4.0 µC, what is the other charge? (µC = 1.0 × 106 C) (Points : 3) 1.0 µC 2.0 µC +1.0 µC +2.0 µC Which substance is most easily grounded? (Points :

    asked on May 7, 2014
  24. Biology

    Compare and contrast fertilization in the mouse and the sea urchin – how they similar and how do they differ (and why?). Think about the structures, events and results. You might want to do this by breaking down the steps. Also address the key role of

    asked on October 15, 2012
  25. grammar

    3.She is tender to percussion and palpation over the right lower quadrant. over is the preposition, is to also a preposition in this sentence

    asked on June 15, 2011
  26. MATH: Pre-Cal/Trig

    The length of a rectangular flower garden is 6 more feet than its width. A walkway 3 feet wide surrounds the outside of the garden. The total area of the walkway itself is 288 square feet. Find the dimensions of the garden.

    asked on January 29, 2011
  27. physics

    Two point charges are located as shown in the figure, with charge q1 = +3.2 C at x = − 3.0 m, y = 0, and charge q2 = +2.5 C at x = +1.0 m, y = +2.0 m. An electron is now taken from a point very far away and placed at the origin. How much work must be

    asked on October 2, 2010
  28. physics

    Two point charges are located as shown in the figure, with charge q1 = +3.2 C at x = − 3.0 m, y = 0, and charge q2 = +2.5 C at x = +1.0 m, y = +2.0 m. An electron is now taken from a point very far away and placed at the origin. How much work must be

    asked on September 29, 2010
  29. English

    Is there always both an antagonist and protagonist in a story or can there just be a protagonist. The book that I'm talking about is New shoes for Sylvia and I only think there is a protagonist

    asked on September 16, 2010
  30. Geography

    how did the columbian exchange affect the long term economic development of Latin America?

    asked on September 15, 2010
  31. Math

    Hi, this is a question I posted a couple of days ago and answers below.I am still really confused and unfortunately can't copy a picture into this. I thought it would be y-x but have no idea how to calculate that, but as the pistons move in towards each

    asked on October 15, 2009
  32. science

    If the weight of a vehicle is doubled, would the deceleration of the vehicle be doubled? For example if a car decelerated at 6m/s, would a car double the size, decelerate at 12m/s or is their some other factor involved? Thanks for your help

    asked on May 17, 2008
  33. Algebra

    solve linear equation-an alloy of metal is 25% copper. Another alloy is 50% copper. how much of each alloy should be used to make 1000 grams of an alloy that is 45% copper

    asked on October 19, 2007
  34. launguage arts

    What does Adhere mean?? stick to to stick to Here are some good online dictionaries you can use when you need them: http://www.answers.com http://www.onelook.com http://www.yourdictionary.com =)

    asked on March 27, 2007
  35. Discipline and Guidance

    Two children are fightining over the blue marker. According to constructivist discipline, what is the best approach for the caregiver in this situation? A. Take the blue marker from both children and tell them to clean up their work,since they cannot get

    asked on January 11, 2007
  36. Chemistry

    When solid NH4HS and 0.28 mol NH3(g) were placed in a 2 L vessel at 24◦C, the equilibrium NH4HS(s)⇀↽NH3(g) + H2S(g)for which Kc= 0.00016, was reached. What is the equilibrium concentration of NH3?Answer in units of mol/L

    asked on January 23, 2020
  37. Chemistry

    A 0.15 mol sample of H2S is placed in a10 L reaction vessel and heated to 1132◦C. At equilibrium, 0.03 mol H2is present. Calculate the value of Kc for the reaction2 H2S(g)⇀↽2 H2(g) + S2(g)at 1132◦C.

    asked on January 23, 2020
  38. Physics

    A sample of helium behaves as an ideal gas as it is heated at constant pressure from 278 K to 353 K. If 40 J of work is done by the gas during this process, what is the mass of the helium sample? The universal gas constant is 8.31451 J/mol · K. Answer in

    asked on April 28, 2019
  39. math

    Explain the difference between |-3| and -3

    asked on September 13, 2018
  40. English

    Good afternoon! I was wondering if I could have a second-hand opinion for my answer. It's a study guide question for a test, so I want to make sure I have it right. Thank you in advanced. 1st Question: Read the passage: Sergeant: ...For brave

    asked on April 28, 2018
  41. Math

    What fraction of 1 litre is 1 millilitre

    asked on March 11, 2018
  42. math

    n/-3 + 5 >4 can someone help me?

    asked on November 7, 2017
  43. math

    n/-3 + 5 >4 can someone help me?

    asked on November 7, 2017
  44. math

    n/-3 + 5 >4 can someone help me?

    asked on November 7, 2017
  45. Math

    Explain how you know to use a variable in an addition or subtraction expression

    asked on November 3, 2017
  46. Math

    m-7

    asked on October 31, 2017
  47. math

    A news paper boy earns P93 a day how much did he earn in 15 weeks

    asked on October 16, 2017
  48. History

    How did the system (unitary government) help Qin Shi Huang control the country?

    asked on July 16, 2017
  49. English - Analysis of quotation

    I need help analysing a quote for an English assignment but I can't find the deeper meaning: "Day of wrath, that day of burning, Seer and Sibyl speak concerning, All the world to ashes turning." ~ Abraham Coles I would be very grateful if someone could

    asked on June 11, 2017
  50. Algebra

    4r+12/8=5r-20/5=

    asked on November 5, 2016
  51. algebra

    h/j=15 for j

    asked on September 19, 2016
  52. grammar

    is this correct? Harriet couldn't study for her comma quiz,because she was asked to open the door for the neighbor, whom the dog wouldn't leave alone in the yard.

    asked on May 20, 2016
  53. probability

    there are 6 orange, 5 pink, and 3 white marbles. marbles not returned. P(first marble orange, second marble not white, third marble not orange. I thought but wrong.6/14*10/13*8/12=480/2184

    asked on May 5, 2016
  54. probability

    There are 6 blue,5 gray,and 5 green marbles in a hat.you pick 4 marbles from the hat. marbles are not returned after they have been drawn.P(the first marble is gray, the second marble is gray, the third marble is not gray, and the fourth marble is not

    asked on May 5, 2016
  55. ELA (check answers)

    We were about a quarter mile away when quiet swept over the colony. A thousand or more heads periscoped. Two thousand eyes glared. Save for our wading, the world's business had stopped. A thousand avian personalities were concentrated on us, and the

    asked on February 25, 2016
  56. Maths

    There are 3.33 litres of part A and 6.67 litres of part B. When they are completely mixed together, they make 10 litres of paint. How much of part B would you need if you are only using one litre of part A

    asked on December 1, 2015
  57. Science

    Portfolio: you will design an experiment to investigate the relationship between the number of cool loops and the strength of a solenoid. Once you have an experiment plan carry out your experiment and record your data. After you have finished conducting

    asked on April 1, 2015
  58. math

    the width of a rectangle is one third of the length. of the perimeter is 40 cm find the dimension of the rectangle

    asked on November 10, 2014
  59. math

    A 12 qrt. cooling system is checked and found to be filled with a solution that is 40 % antifreeze. The desired strength of the solution is 60% antifreeze. how many quarts of solution need to be drained and replaced with pure antifreeze to reach the

    asked on August 31, 2014
  60. Mathematics

    How would i go about tranposing this equation so that I end up with a value for x? Please include working. Thankyou 315.414=2πx^2+860.16/x

    asked on April 26, 2014
  61. Maths

    Please help me to understand transposing equations. In this example I need to find y x^2=y^2-r^2/y^2 Thank you for your help

    asked on February 9, 2014
  62. Physics

    we have to transpose the following equation to find p, but I don't quite understand how to come up with the correct answer: x^2/p^2 + y^2/q^2 = 1 Appreciate help, thanks

    asked on February 5, 2014
  63. Math

    Suzanne bought 50 apples at the apple orchard.she bought 4 times as many red apples as green apples.how many more red apples than green apples did Suzanne buy?

    asked on November 14, 2013
  64. college history

    The evolution of the socio-political and cultural milieu that created the conditions necessitating and including the formation of the: (a) Declaration of Independence (b) the Constitution (including the Bill of Rights)

    asked on October 19, 2013
  65. Maths/Physics

    An athlete is training and is required to perform shuttle runs. From the starting position they sprint out to 10m (this takes 2 seconds). I know that a = 5m/s/s but I need to know at what metre within the run would maximum acceleration occur. Appreciate

    asked on August 29, 2013
  66. Physics URGENT HELP

    An athlete is training and is required to perform shuttle runs. From the starting position they sprint out to 10m (this takes 2 seconds). Where would the maximum acceleration occur? Justify your answer. Please help! Thankyou.

    asked on August 29, 2013
  67. Physics

    An athlete is training and is required to perform shuttle runs. From the starting position they sprint out to 10m (this takes 2 seconds). Where would the maximum acceleration occur? Justify your answer. Please help! Thankyou.

    asked on August 29, 2013
  68. math

    ellen bought 4 1/4 yards of fabric for $3.25 per yard. how much was ellen charged for this fabric. I know 4x 3.25 is 13.00 dollars so far how do I get the rest solved help I have a bunch more like this

    asked on April 28, 2013
  69. Math

    The mean of three test scores is 74. What must a fourth test score be to increase the mean to 78?

    asked on January 4, 2013
  70. Chemistry

    Energy Level Transfer of Hydrogen's electron. For each line, determine the prinicpal energy level to which hydrogen's electron was excited. When the electron fell to the 2nd level, energy was released corresponding to each of the lines. E= 2.179X10-18

    asked on November 7, 2012
  71. Biology

    11) The recent Nobel Prize in Physiology or Medicine was awarded based on two sets of experiments. The first of these is described in the following abstract: An important problem in embryology is whether the differentiation of cells depends upon a stable

    asked on October 15, 2012
  72. Biology

    Describe the process of gastrulation in the sea urchin – what molecular and cellular changes are needed to drive the movements that one observes?

    asked on October 15, 2012
  73. Biology

    We looked at four different families of signal transduction cascades. Describe three general, common features that are, in some way, part of each of these cascades.

    asked on October 15, 2012
  74. Biology

    3) The following statements are generalizations about cell signaling events made by a student with a basic knowledge of biology (a little knowledge is a dangerous thing). Your professor has requested that you tutor this student. You note that in each case

    asked on October 15, 2012
  75. Chemistry

    In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 59.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse

    asked on February 18, 2012
  76. Alg. II

    Factor completely: 54+16x^3

    asked on October 27, 2011
  77. calculus

    How do I set-up/solve this problem? Please help me. The half-life of the radioactive isotope gallium-70 is 20 minutes. If the initial amount of gallium-70 is 25 milligrams, when will 10 milligrams be left?

    asked on February 17, 2011
  78. Mathematics

    37.8 degrees

    asked on January 26, 2011
  79. trigonometry. Math

    In a triangle PQR, angle Q=50 degrees,PR=5CM, QR=4CM. find angle P?

    asked on January 26, 2011
  80. chemistry

    equation of the reaction of hydrochloric acid and iron sulphide

    asked on November 29, 2010
  81. Organic Chemistry

    what is wrong with the idea that the reaction of maleic acid with zinc and aqueous HCL would yield tetrahydrofuran?

    asked on October 30, 2010
  82. college physics,electric potential

    Four point charges, each with Q = 7.2 µC, are arranged at the corners of a square of edge length 3.6 m. What is the electric potential at the center of the square? V? Please show me how to solve this.Thanks

    asked on October 2, 2010
  83. physics

    Four point charges, each with Q = 7.2 µC, are arranged at the corners of a square of edge length 3.6 m. What is the electric potential at the center of the square? 1 V

    asked on September 29, 2010
  84. physics

    How much work (as measured in joules) is required to push an electron through a region where the potential change is +73 V? Assume the electron moves from a region of low potential to a region of higher potential. 1 J

    asked on September 29, 2010
  85. English

    What is a creative title for my paper. I'm doing on theme for a novel. We can't use the title of the book as the title of our paper? I can't come up with anything.. Any suggestions would be helpful

    asked on September 16, 2010
  86. English Quick?

    Why is theme important? Is there a theme in every piece of literary writing?

    asked on September 16, 2010
  87. Chemistry

    What is the molar hydronium ion concentration in solutions with pH values of a) 3.45 and b) 10.290. How do you work these problems?

    asked on May 6, 2010
  88. English

    This is my whole poem. My poem dosen'thave to rhyme. The Green Team is like an angel,dancing through the beautiful blue sky. It is a miracle having Dearbhail,Amber,Stacey, Marina,Kudzayi and Sophie in Catherine. We work as a Team with no Fight's or

    asked on February 22, 2010
  89. English

    Helllo I writing a poem about my p.e.team,can you please read my work and say what you think about it.Thanks I was delighted when I found out I was in Catherine Because Green was my favourite colour.

    asked on February 22, 2010
  90. Trig

    Are any of these three problems identities? 1. Cos^2x-sin^2x=1-2sin^2x 2. Sinxsecx=cosxcscx 3. Sec^4x-tan^4/sec^2x=1+sin^2x If so, how can you conclude that any of them are identities?

    asked on January 3, 2010
  91. Trig

    Are any of these three problems identities? 1. Cos^2x-sin^2x=1-2sin^2x 2. Sinxsecx=cosxcscx 3. Sec^4x-tan^4/sec^2x=1+sin^2x If so, how can you conclude that any of them are identities?

    asked on January 3, 2010
  92. math

    if a group of students are facing each other in a circle and student 2 is facing student 9 how do i find out how many students are in the circle

    asked on December 3, 2009
  93. MELODY

    The parachute on a race car of weight 8850 N opens at the end of a quarter-mile run when the car is traveling at 31 m/s. What total retarding force must be supplied by the parachute to stop the car in a distance of 1000 m? [so for this one, i need to know

    asked on October 24, 2009
  94. math115

    Kristi jogged for 1/4 of an hour swam for 2/3 of an hour and rode her bike for 4/5 of an hour how long did she exercise? answer 1 hr 43 min Find the best buy on sugar (1LB is 16oz. )1 lb for $1.29, 12oz for $1.09 2 lbs 4 oz for $3.09 10 oz for $.99 answer

    asked on October 20, 2009
  95. math115

    which numbers are prime numbers 37,39,41,43 answer 37,41,43 John spent 1/3 of his study time doing math homework and 3/5 preparing for a history exam what fraction of his study time remains? answer 1/15 Solve for the unknown 2/7/20=1.6/ranswer 112

    asked on October 20, 2009
  96. Math

    I have another question I am stuck on that follows a previous question. How do I get an equation for the height of the car on the ferris wheel over a 10 minute period if we start the analysis one minute into the ride. Can I still use the original formula h

    asked on October 15, 2009
  97. Maths

    Two pistons A & B move backwards and forwards in a cyclinder. Distance x cm of the right hand end of piston A from point 0 at time t seconds is x=3sin(2t)+3 and the distance y cm of the left hand end of piston B by formula y=2sin(3t-pi/4)+8.5 The pistons

    asked on October 14, 2009
  98. Maths

    I have a trig question regarding a ferris wheel, radius 35m, axles 37m, clockwise direction, rotates twice every 10 mins. I have calculated the following function: h = -35cos(2pi*X/5)+37 I have calculated at what height I would be after 3 minutes by

    asked on October 13, 2009
  99. Math 116

    The formula R= -0.075t + 3.85 can be used to perdict the world record in the 1500 meter run, t years after 1930. Determine an inequality that identifies the years in which the world record will be less than 3.4 minutes. Soleve for t. t >__? round to the

    asked on October 2, 2009
  100. Science

    I am working on a year 10 physics assignment on road science. I am trying to figure out the reaction distance of a car with: Skid marks = 24m Reaction time = 1 sec Decelaration rate = 6m/sec I have many formulas in my book and am unsure of which one to use

    asked on May 16, 2008

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