# 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%

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.

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.

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?

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

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?

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

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.

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?

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

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?

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.

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

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+

16. ## Social Studies (9th grade)

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

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

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

19. ## US Government

which amendment does not deal with military protection

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

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

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,

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 :

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

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

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.

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

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

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

30. ## Geography

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

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

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

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

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 =)

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

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

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.

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

39. ## math

Explain the difference between |-3| and -3

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

41. ## Math

What fraction of 1 litre is 1 millilitre

42. ## math

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

43. ## math

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

44. ## math

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

45. ## Math

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

m-7

47. ## math

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

48. ## History

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

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

50. ## Algebra

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

h/j=15 for j

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.

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

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

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

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

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

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

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

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

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

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?

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)

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

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.

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.

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

69. ## Math

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

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

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

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?

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.

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

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

76. ## Alg. II

Factor completely: 54+16x^3

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?

37.8 degrees

79. ## trigonometry. Math

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

80. ## chemistry

equation of the reaction of hydrochloric acid and iron sulphide

81. ## Organic Chemistry

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

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

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

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

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

86. ## English Quick?

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

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?

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

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.

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?

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?

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

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

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

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

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

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

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

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