# Questions Asked onDecember 6, 2008

1. ## Economics: Comperative Advantage

Refer to Figure 4. Assume that Cliff and Paul were both producing wheat and corn, and each were dividing their time equally between the two. Then they decide to specialize in the product they have a comparative advantage in. As a result, total production

2. ## science

Where in the United States is there measurable evidence that the plates are moving realtive to one another?

3. ## PHysics

a 15g bullet strikes and becomes embedded in a 1.1kg block of wood placed on a surface in front of the gun. if the coefficient of kinetic friction between the block and the surface is 0.25 and the impact drives the block a distance of 95m before it comes

4. ## Physics

a rocket following a parabolic path through the air suddenly explodes into many pieces. what can you say about the motion of this system. and If only an external force can change the momentum of the center of mass of an object, how can the internal force

5. ## physics

The Sun and Earth each exert a gravitational force on the Moon. What is the ratio FSun/FEarth of these two forces? (The average Sun-Moon distance is equal to the Sun-Earth distance.)

6. ## science

how does destructive interference of sound waves help preserve hearing?

7. ## physics

A mass M is split into two parts, m and M - m, which are then separated by a certain distance. What ratio m/M maximizes the magnitude of the gravitational force between the parts?

8. ## physics

In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you

9. ## physics

At what altitude above Earth's surface would the gravitational acceleration be 3.0 m/s2?

10. ## english 10

m doing an essay of Ray Bradbury's 3 short stories "The Veldt" "The House" and "The Cat's Pajamas" The theme of my essay is the conflicts of the story I have a point in my essay, they are: How each conflicts affect the different characters of different

11. ## Chemistry

Calculate the wavelength of the yellow light emitted by a Sodium Lamp if the frequency is 5.10 X 10^14 Hz. Formula: Wavelenght (lamda)= speed of light, 3 X 10^8(c)/frequency, 5.1 X 10^14. My answer was 5.9 X 10^-5. Is this anywhere near correct? Please

12. ## Chemistry (reaction with amine)

Phenol dissolved into sodium hydroxide solution to give another solution A. What would be formed when A reacted with phenylamine/nitrous acid mixture , butylamine/nitrous acid mixture and ammonia/ nitrous acid respectively ? The resulting solution were

asked by initial D
13. ## Chemistry

What is the compound formed when sodium nitrite solution is added to butylamine and concentrated hydrochloric acid respectively ? Both of them formed NO2 as i know, but what is the other compound formed? or what was remained in the solution ?

asked by initial D
14. ## Chemistry

Phenol dissolved into sodium hydroxide solution to give another solution A. What would be formed when A reacted with phenylamine/nitrous acid mixture , butylamine/nitrous acid mixture and ammonia/ nitrous acid respectively ? The resulting solution were

asked by initial D
15. ## math

1/10^9x5^2(2)^5x6^2-4x6^-4/10^6/10^-6/10^15x100^5

16. ## Grade 11 Physics - Light Unit

Why must rays be shone in the centre of a flat surface? Describe the difficulty that's results if this is not done.

17. ## math

A model of a planet shows a satellite moving in an elliptical orbit about the planet. The closest distance from the centre of the satellite to the centre of the planet in the model is 3 m and the longest distance is 8m. a) Determine a possible equation for

18. ## Chemistry (A level)

I was given a Chemistry question on the titration of a strong base being added to a weak acid. The question was: "Calculate the pH in a titration when 10.0cm^3 of a 0.10moldm^-3 solution of NaOH is added to a 10.0cm^3 of 0.25moldm^-3 solution of ethanioc

19. ## Math 115

A tree casts a shadow that measures 5 m. At the same time, a meter stick casts a shadow that is 0.4 m long. How tall is the tree?

20. ## child care

let me know if I answered this question right. Which of these is considered a benefit of a quality child care program? a.The child learns to get along with adults and children outside of the nuclear family. b.The child develpos a closer relationship with

21. ## Chemistry (reaction with amine)

haphthalen-2-ol dissolved into sodium hydroxide solution to give another solution B. What would be formed when solution B reacted with phenylamine/nitrous acid mixture , butylamine/nitrous acid mixture and ammonia/ nitrous acid respectively ? The resulting

asked by initial D
22. ## chemistry again ..

haphthalen-2-ol dissolved into sodium hydroxide solution to give another solution B. What would be formed when solution B reacted with phenylamine/nitrous acid mixture , butylamine/nitrous acid mixture and ammonia/ nitrous acid respectively ? The resulting

asked by initial D
23. ## spanish sra McGuinn

Mi mejor memoria fue la noche vieja de dos mil seis en Nueva York. Más temprano esa Nochebueno, mis amigos y yo fuimos a China Town en Queens. Nosotros cenamos en un restaurante chino y me gustó mucho la comida allí . Después, nosotros tomamos un

24. ## child care

Family day care accounts for ____ of the full-time child care given outside of a child's family. a. 15% b.20% c. almost 25% d. over 80%. I picked C Can u tell me if this correct.

25. ## 7th grade

how woul you solve a problem like ths (9x-5y)(2x+3y)

26. ## mathematics

if a=5 b=108 c=190 then find the equation whose roots are double the root s of a,b,c......

27. ## English

In the book Huckaberry Finn: 1) To whom did Jim belong to? 2)Who did jim say gave him the five center piece he wore around his neck? 3) who was called a cry baby?

28. ## Science

CheckPoint: Terrestrial Resource Plan · Resources: Ch. 12-16 of Visualizing Environmental Science and Appendix F · Due Date: Day 5 [Individual forum] · Choose a terrestrial resource issue discussed in Ch. 12-16 of the text. · Post a 5- to 7-slide

29. ## science

At exactly 2:00 pm, sophy the snail crawls onto a meter stick at the 10 cm mark. If he reaches the 65 cm mark at exactly 2:10 pm, what is her speed?

30. ## Precalculus

Would this be the answer for this problem 2x^3-x^2 > x x>1 or 0>x>-1/2

31. ## physics

The people move toward the door at speed vs = 3.7 m/s, are each d = 0.20 m in depth, and are separated by L = 1.75 m. The arrangement in the figure occuurs at time t = 0. (a) At what average rate the layer of people at the door increase? m/s (b) At what

32. ## College Writing

Society sets its own predetermined laws for everyone to follow but sometimes certain people disobey the common norms to hide something deeper within. Whether this society is enclosed within boundaries, or outside in real life circumstances, these people

33. ## math

3x+5y= -11 x-2y= 11

34. ## math

please help me with this proving question prove that 4cos(theta) * cos(theta + 120) * cos(theta - 120) = cos(3theta) PLEASE HELP THANKS

35. ## spanish

point of is my most memoable day on the subway all of us we found out that dottiea middle aged women knew the lyrics to smack that - this also was the first time I have ever been on the subway to New York. We saw the ball in Times Square drop We arrived

36. ## Math 115

6.5% of what number is 325

37. ## Msth 118 Ch 8

Business and finance. The following scores were recorded on a 200-point final examination: 193, 185, 163, 186, 192, 135, 158, 174, 188, 172, 168, 183, 195, 165, 183. (a) Find the mean final examination score. (b) Find the median final examination score.

38. ## Math 115 Ch 8

Compare the population per square mile in Asia to the population per square mile in North America for the year 2000. North America: land area(1,000mi squared)9,400 Population 305000000 Asia: land area (1,000mi squared) 17,400 population 4,028,000,000

39. ## english

is superiority an emotion? - The feeling of superiority

40. ## math

Using the inverse of: 2 1 -3 4 Find 2x+y=2 -3x+4y=1

41. ## math

solve: 3x+5y= -11 x-2y=11

42. ## GEOMETRY

IF 1/2X-3=2(X-1)/5 THEN X=

43. ## Math

How many kids do you have:4? How many different ways can you arrange this other than these?: [g=girl;b=boy] 2 g 2 b 3 g 1 b 4 g 4 b

44. ## math- exponents

i have a quick question... -3^2 (-3)^2 wat is the difference??? also... -3^3 (-3)^3 help me plz...thx if u do

45. ## math

4. In a backyard, there are two trees located at grid points A(-2,3) and B(4,-6). a) The family dog is walking through the backyard so that it is at all times twice as far from A as it is from B. Find the equation of the locus of the dog. Draw a graph that

46. ## physics

a 2.0 kg crate is incline at 60degrees and is held in equilibrium by a horizontal force.. what is the magnitude of this horizontal force? (disregard friction)

47. ## spanish

Thank you so much - can you look this over there are a few at the end I was not sure of Mi mejor memoria fue la noche vieja de dos mil seis en Nueva York. Más temprano, esa noche mis amigos y yo fuimos a China Town en Queens. Nosotros cenamos en un

48. ## spanish

can you check this for me and help me with puting in the accents I got a new mac and am having difficuties with this Me mejor memoria fue la noche vieja de dos mil seis en Nueva York. Mas temprano, esa moche mis amigos y yo fuimos en China Town en Queens.

49. ## Precalculus

How would I find the limit of (if it exists): lim x-->3 (x^3-27) -------- (x^2-9)

50. ## math

Let B= 0 1 1 0 Find B if it is to the negative one power. (Its supposed to be a matrix, but I don't know how to write the brackets on the computer)

51. ## physics

An electron has a constant acceleration of 2.0 m/s2. At a certain instant its velocity is 10.9 m/s. (a) What was its velocity 2.5 s earlier? m/s (b) What is its velocity 2.5 s later? m/s

52. ## spanish thanks

Mi mejor memoria fue la noche vieja de dos mil seis en Nueva York. Más temprano esa Nochebueno, mis amigos y yo fuimos a China Town en Queens. Nosotros cenamos en un restaurante chino y me gustó mucho la comida allí . Después, nosotros tomamos un

53. ## math

what is the EXACT VALUE of cos (pi/3)?

54. ## spanish

it should be she sang the lyrics can you help me with changing that.

55. ## SPANISH ONE LAST WORD

Mi mejor memoria fue la Noche Vieja de dos mil seis en Nueva York. Más temprano esa Nochebuena, mis amigos y yo fuimos a China Town en Queens. Nosotros cenamos en un restaurante chino y me gustó mucho la comida allí . Después, nosotros tomamos un

56. ## 7th grade

A company made 34,000.00 in 2007. This company made 32,500.00 in 2008. What is the percentage of the difference. The difference is 1,500.00 Is the difference 44.3 %? 34,000.00 32,500.00 _________ 66,500.00

57. ## spanish perfect???

Mi mejor memoria fue la Noche Vieja de dos mil seis en Nueva York. Más temprano esa Nochebuena, mis amigos y yo fuimos a China Town en Queens. Nosotros cenamos en un restaurante chino y me gustó mucho la comida allí . Después, nosotros tomamos un

58. ## Math 115

Find the mode of each set of numbers. 41, 43, 56, 67, 69, 72

59. ## Macroeconomics

During the 1990s, the size of the federal government debt became so large that servicing the interest payments became a significant portion of total federal expenditure. In response, many representatives and senators felt that the federal deficit needed to

60. ## Macroeconomics

The “Great Moderation” since 1985 could be due either to smaller demand stocks when compared to the period prior to 1985 or to a better response by monetary policymakers since 1985 to the same demand shocks that occurred prior to 1985. Evidence to

61. ## physics

a pendulum clockis lag by 2 min during a whole 24 hours.what correction should be made in its length so that it keep the right time?

62. ## science

what do you call organisms produced by a living thing

63. ## CHEM ideal gas

hi i am working on trying to derive KE (or Etrans)=3/2nRT so i know these steps that ___________ pV= nRT and pV= 1/3 NmV2 and combining them, we get nRT= 1/3Nmv2 also, we know that for translational motion, KE= 1/2Nmv2 ______ i don't know how 2/3 (1 /2

64. ## writeacher spanish

Sra McGuin - had been helping me review my work she asked me what I was trying ot say in english _I had done the entire assignemtn but to help me she needed the english - I would never ask someone to do my work point of is my most memoable day on the

65. ## sra mcguin spanish

here is some of the confusing things i was tying to say in english point of is my most memoable day on the subway all of us we found out that dottie a middle aged women knew the lyrics to smack that - this also was the first time I have ever been on the

66. ## Criminal Justice

Are the lives of prison inmates reflective of the society at large?

67. ## MGT HELP ASAP

this is the way i am starting my intro. What else can I add to it. Best Practices Manual for Supervisors This manual will have everything you will need to help tell someone about the different responsibilities a supervisor has in his or her job

68. ## CJ

how our treatment of our prisoners reflects the kind of society we are.

69. ## Social Studies (specifically American Goverment)

What could be some future challenges for freedom of religion in the 1st amendment?

70. ## math

Find the inverse of the matrix, 1, 2 ,-1 2, 5, 1 3, 6, -2

71. ## Math

what is the sum of fractions 1/4,3/8, and 5/14?

72. ## MGT

this is what i have now for an intro on my final paper. This handbook will productively to give an explanation in straightforward terms the appropriate methods for performing job duties as a supervisor with this corporation. It will have all you will need

73. ## spanish maybe in final

Mi mejor memoria fue la Noche Vieja de dos mil seis en Nueva York. Más temprano esa Nochebuena, mis amigos y yo fuimos a China Town en Queens. Nosotros cenamos en un restaurante chino y me gustó mucho la comida allí . Después, nosotros tomamos un