# Questions Asked onJuly 17, 2011

1. ## scholarship essay

This is for a scholarship the topic is "Why do you deserve to win this scholarship?" I am hoping that someone can proofread this and also give any tips for improvement. In addition, the essay has to be under 250 words. I believe that I deserve this

2. ## Statistics

Construct the probability distribution for the value of a 2-card hand dealt from a standard deck of 52 cards (all face cards have a value of 10 and an ace has a value of 11). a) What is the probability of being dealt a hand that adds up to 21? b) What is

3. ## geometry

If a translation maps point (3, 2) to (4, 5); or T: (3, 2) (4, 5), then what is the image of the point (0, 0)?

4. ## Physics

A 2000 {\rm kg} car traveling at a speed of 13 {\rm m/s} skids to a halt on wet concrete where mu_k = 0.50. How long are the skid marks? I tried doing this many times and each answer is wrong. Can someone help?

5. ## phy

A major-league catcher gloves a 92 mi/h pitch and brings it to rest in 0.15 m. 1-If the force exerted by the catcher is 803 N, what is the mass of the ball?

6. ## Physics

An antenna loosens and becomes detached from a satellite in circular orbit around the earth. Describe the antenna's subsequent motion. If it will land on earth, describe where: if not, describe hw it would be made to land on earth.

7. ## problem

Benzene has a heat of vaporization of 30.72 kj/mol and a normal boiling point of 80.1. At what temperature does benzene boil when the external pressure is 480 torr?

8. ## Physics

How much force does an 88 kg astronaut exert on his chair while sitting at rest on the launch pad? Answer: 860N Now the question: How much force does the astronaut exert on his chair while accelerating straight up at 14 m/s^2? What do you do first, how do

9. ## Physics

An antenna loosens and becomes detached from a satellite in circular orbit around the earth. Describe the antenna's subsequent motion. If it will land on earth, describe where: if not, describe hw it would be made to land on earth.

10. ## Physics

A baseball is tossed at a steep angle into the air and makes a smooth parabolic path. Its time in the air is t and it reaches a maximum height h. Assume that air resistance is negligible. a. Show that the height reached by the ball is gt^2/8. b. If the

11. ## poetry

analysing night waitress poem by Lunda Hull. not fully understanding it.

12. ## biology: genetics

In Drosophila melanogaster, cut wings (ct) is recessive to normal wings (ct+), sable body (s) is recessive to gray body (s+), and vermilion eyes (v) is recessive to red eyes (v+). All three recessive mutations are X- linked. A female fly with cut wings,

13. ## thermodynamic

A rigid vessel of 1m^3 contains steam at 20 bar and 400 degree C. the vessel is cooled until the steam is just dry saturated. Calculate the mass of steam in the vessel.

14. ## Operation Management

Analysis of the output of a process has suggested that the variability is nonrandom on several occasions recently. However, each time an investigation has not revealed any assignable causes. What are some of the possible explanations for not finding any

15. ## physics

Find the magnitude and direction of the net electrostatic force exerted on the point charge q3 in the figure below, where q = +2.5 μC and d = 28 cm. The picture is of a square. q1=+q, q2=-2q, q3=-3q, q4=-4

16. ## math

Suburban Population. The following charts show the populations for two suburbs from 1980 to 1990, where x = 0 correspond to 1980, x = 2 correspond to 1982, and so on. Year x Suburb 1 y Year x Suburb 2 y 0 12,690 0 23,112 2 12,071 2 23,893 4 13,463 4 24,674

17. ## poetry

how is her background significant to her sense of identity in the poem night waitress by Lynda Hull

18. ## physics

Find the magnitude and direction of the net electrostatic force exerted on the point charge q3 in the figure below, where q = +2.5 μC and d = 28 cm. The picture is of a square. q1=+q, q2=-2q, q3=-3q, q4=-4

19. ## physics

A loudspeaker of mass 24.0 {\rm kg} is suspended a distance of h = 2.20 {\rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.30 {\rm m}. What is the tension T in each of the cables? Use 9.80 {\rm

20. ## algebra

Write the equation of the line satisfying the given condition. Perpendicular to y = 4x + 2 and passing through the point (0, -4) (Hint: Slopes of non-vertical perpendicular lines are negative reciprocal of each other.)

21. ## algebra

TGIF. Chris and Terry have been trying to live within their budget but miss going out to dinner on Friday nights. They decide not to spend any nickels or quarters they receive as change for a month and save these in a jar. At the end of the second week

22. ## Geometry

Triangles ABF and EDG are congruent. Triangles ABF and GCF are equilateral. AG = 24 and CG = 1/5 AB. What is the total distance from A to B to C to D to E?? Please I don't understand this

23. ## math

A transformation T : (x, y) (x + 3, y + 1). The image of B(4, 1) is

24. ## Chemistry

No its not a typo but I did put the wrong activation energy. Its suppose to be a certain reaction has an activation energy of 37.70kj/mol. At what kelvin temperature will the reaction proceed 3.00 times then it did at 303k? I was working the problem and

25. ## Chemistry

To prepare a 400 mL solution of .7500 M NaC2H3O2, how many grams of NaC2H3O2 would be needed? I am wondering if I set this up, I got an answer of .0435 g NaC2H3O2. But i'm not sure if that is right? Is that the correct answer?

26. ## physics

A physical science student adds 500g of 0 degree C ice to 500g of 80 degree C coffee. What is the final temperature of the drink after thermal equilibrium is reached? How much of the ice was melted by the process? Assume coffee has same specific heat as

27. ## phy

A force of magnitude 7.50 N pushes three boxes with masses m_1 = 1.30 kg,m_2 = 3.20 kg, and m_3 = 4.90 kg .The mass is side by side. 1-Find the magnitude of the contact force between boxes 1 and 2, and 2-Find the magnitude of the contact force between

28. ## Physics

A 1300 kg car is traveling along a straight road at 20 m/s. Two seconds later its speed is 24 m/s. What is the magnitude of the net force acting on the car during this time? I don't know what equation to use, and I keep getting stuck

29. ## english

what would be a great topic for an argumentive essay

30. ## math

An artifact was found and tested for its carbon-14 content. If 88% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon-14 has a half-life of 5,730 years.

31. ## Chemistry

A line in the Lyman series of the hydrogen atom emission results from the transition of an electron from the n=3 level to the ground state level. a) What n level (#) is the ground state level for the hydrogen atom? b) What is the energy of this photon in

32. ## math

A transformation T: (x, y) (x + 3, y + 1). For the ordered pair (4, 3), enter its preimage point.

33. ## Chemistry

4Al + 3O2 = 2Al2O3. If 41.5 g aluminum and 69.0 g oxygen undergo a reaction that has a 67.0% yield, What mass of aluminum oxide forms. Please help by showing steps to find answers. Thanks

34. ## Physics

Two blocks are stacked one on top of the other. The coefficient of friction between the two blocks is 0.20, and the coefficient of friction between the bottom block and the floor is 0.10. What is the max force you can apple to the bottom block such that

35. ## math

Here are my attempts. Let me know if they are correct please> :) Thanks Question (Find quotient): 9a^2-25b^2/3a-5b My answer: 3a+5b Find Quotient: y^4+3y-5/y^2+7 My answer: y^4+3y-15/y^2+7 y^2+3y+8 Find Quotient: This one i am confused on the ^the power

36. ## Physics

A rock thrown from a bridge hits the water below at a horizontal distance x directly below the throwing point. The rock travels a smooth parabolic path in time t. a. Show that the virtical distance of the bridge above water is 1/2gt^2. b. What is the

37. ## self reflective essay

I want to know can I write about myself in a self reflective essay ,,here is my thesis statement do you think it is ok? In this paper I will argue the life of a child being born in a divorced family was it easier or was it very hard?

I have just started business classes but I also own a business. I was wondering if anyone has any insight to how I would know if online coupons may help or break my business?

39. ## Physics

During the war in iraq, the us military was extremely successful at detecting and striking enemy targets. many news correspondants suggested the coalition forces had a spy satellite at an altitude of only a few hundred kilometers permanently positioned 34

40. ## Math/Algebra

The length of Karen's living room is 2ft longer than the width. The perimeter is 80ft. Find the length and the width. Can someone please explain to me how you find the answers? Thanks a ton!

41. ## poetry

how is her background significant to her sense of identity, in the poem night waitress by Lynda Hull

42. ## phy

A major-league catcher gloves a 92 mi/h pitch and brings it to rest in 0.15 m. 1-If the force exerted by the catcher is 803 N, what is the mass of the ball?

43. ## Chemistry

What is the concentration of NaNO2 if 2.13g of N2O3 is added to excess NaOH and the resulting solution is diluted to a total volume of 500.0 mL?

44. ## Physics

Question: When a balloon is rubbed with fur, it becomes negatively charged. Explain why?

45. ## Geometry

Triangles ABF and EDG are congruent. Triangles ABF and GCF are equilateral. AG = 24 and CG = 1/5 AB. What is the total distance from A to B to C to D to E?? Please I don't understand this

46. ## Economics

What is the effect on the price of hotdogs and the quantity of hotdogs sold if: a.) The price of a hamburger rises? b.) The price of a hotdog bun rises? c.) The supply of hotdog sausages increases? d.) Consumers' incomes increase if hotdogs are a normal

47. ## Physics

A proton is released from rest in a uniform electric field. After the proton has traveled a distance of 10.0 cm, its speed is 1.4 x 106 m/s in the positive x direction. Find the magnitude and direction of the electric field.

49. ## Programing

apparently I was skipped by accident 13.2 A quadratic Julia set has the form z(n+1)=z(n)^2+c The special case where c=-.123+.745i is called Douday's rabbit fractal. Follow example 13.1, and create an image using this value of c. For the Madelbrot image, we

51. ## science

can please someone check my answer. which 2 statements are true A)Morse code, Huffman coding and run-length encoding are all examples of lossy compression. B)Lossless compression uses perceptual compression techniques to ensure that all the data can be

52. ## Math

The value of a particular stock dropped from $83 in February to$48 in September. Find the rate of change in the value of the stock.

53. ## Math

Prove each of the following identities. a)tan^2x = 1 – cos^2x/cos^2x b)sinx/1 – sin^2x = tanx/cosx

54. ## Math

Construct a truth table for the statement. (p ↔ q) → p

55. ## Math

Write the statement in symbolic form. Let p: The tent is pitched q: The bonfire is burning The bonfire is not burning if and only is the tent is pitched.

56. ## math math

Given the linear equation , find the y-coordinates of the points (-6, ), (-3, ), and (3, ). Please show all of your work. Plot those points and graph the linear equation.

57. ## math math

Given the linear equation y=2/3x+1, find the y-coordinates of the points (-6, ), (-3, ), and (3, ). Please show all of your work. Plot those points and graph the linear equation

58. ## anth

What evidence do you see, in the book Dancing Skeletons, of a holistic study?

59. ## english

This is the 1st paragraph to my essay: Social awkwardness Ever since I can remember people have always commented on my height, this made me very uncomfortable and awkward about it around my peers. I recall a time when my mother got into an argument with a

60. ## physics

A piece of metal has a density of 0.20g/cm^3.what is the volume in cm^3 of a 1g sample of a substance?

61. ## geometry

the bases of two triangles are the same length. The altitude of the first triangle is 5 cm and the area of the second triangle is 3 times the area of the first. what is the altitude of the second triangle?

62. ## Math

Solve for all possible values of x where O°≤x≤360°. tan x = -1/√3 cos x = 1/2

63. ## Math

Solve for all possible values of x where O°≤x360°. sin x=2/3. I do not understand these types of questions please answer in as much detail as you can so I can do them myself.

64. ## Biology

What is the "biological hierarchy"? Is it kingdom, phylum, class, order, family, genus, species? Or is it organelle; cell; tissue; organ; organism; species; community; population; ecosystem; biosphere? Which one is it referring to?

65. ## algebra

-2x+5y=-15 Find the x- and y-intercepts and graph the equation plotting the intercepts. Please show all of your work.

66. ## math

Write the equation of the line satisfying the given condition. Parallel to y = (2/3)x +1 and passing through the point (0, -3). (Hint: Parallel lines have the same slope

67. ## Biology

In your own words, explain the second law of thermodynamics and explain why it is not violated by living organisms?

68. ## Math

Solve for all possible values of x where O°≤x360°. sin x=2/3.

x^3+216

70. ## Chemistry

The Managing Director of a well-known company on Wall Street thrives on a diet of fruit jam, bread, pasta, and coffee. She exercises intermittently. One day she decides to go to her primary healthcare provider for a routine checkup. The healthcare provider

71. ## algebra II logarithms

f(x)=log4 (x)+3 how could i get this so i could graph it?

72. ## algebra II

use the properties of logarithms for the expression. 5^log5(7x)

73. ## trig

Find the exact value of the trigonometic function at the given real number of cot(5pi/3)

74. ## Accounting

purchased dental equipment at 15,000 and invested cash of 500,000

75. ## math

The half-life of 234U, uranium-234, is 2.52 multiplied by 105 yr. If 97.7% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed?

76. ## Math - Calculus

Find the equation of the non-vertical asymptote. What is the smallest value of x at which f(x) intersects its? -6x^3 + 2x^2 - 9x +3 / -5x^2 +9x - 4 1)Find the equation of the non-vertical asymptote. 2)What is the smallest value of x at which f(x)

77. ## intermediate algebra

Short answer. Find the product. -4x(-7x^3+4x^2+8x-6)

78. ## math 209

The perimeter of a rectangle is 44ft the length is 4ft longer than the width. Find the demensions. Write a system of linear equations and solve the resulting system. Let x be the length and y be the width.

79. ## algebra

Essay; show all work. Find the product: (1/7x^2-2/5)(1/2x-1/2) any help would be appreciated

80. ## math

Given the linear equation , find the y-coordinates of the points (-6, ), (-3, ), and (3, ). Please show all of your work. Plot those points and graph the linear equation.

81. ## math

Given p is true, q is false, and r is trus, find the truth value of the statement (~p^q)~r. Show step by step work.

82. ## Financial and ratio analysis

I am suppose to choose at least five ratios(at least one ratio from each of the five categories and calculate each of the chosen ratios over the past three years using the financial data of Berry's Bug Blasters virtual organization, but it is so confusing

83. ## chemistry

A student adds .137 grams of nickel(II) hydroxide powder to 10.0 L of distilled water at 25C with vigorous stirring. Did all of the powder dissolve? If not, how much powder remains undissolved? If so, how much more powder can be dissolved before a

84. ## medical coding

A condensed summary compiling information about a particular field of knowledge is a a. compendium b. compliance manual c. treatment guidelin d.pharmacopeiae

Construct a truth table for the statement. (p ↔ q) → p

86. ## math

Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.001618x4 + 0.057326x3 – 1.1367x2 + 11.46x + 2.914. When a unicorn is 2.5 years old, what is its age in human equivalent years? What about when it is

87. ## Chem

A line in the hydrogen atomic line spectrum has a wavelength of 486 nm. What is the frequency of this light (in Hz)?

88. ## geometry

what is the area of parralel ? hieght is 18 and the base is 15 .. reply asap .

89. ## managerial economics

Discuss the statistical significance of the parameter estimates aˆ, bˆ, cˆ, and dˆ using the p-values. Are the signs of bˆ, cˆ and dˆ consistent with the theory of demand?

90. ## chemistry

After you preform your experiment, you determine that the Kf value for naphthalene is 6.9 . You are using 10g of naphthalene and added 1.0 g of your unknown. The the freezing point of the solvent decreased by 4.42 when the unknown was added. Knowing this

91. ## calculus

Verify the identity cot2 beta/1+csc beta=1-sin beta/sin beta.