# Questions Asked onJuly 16, 2012

1. ## English

I helped my mother wash the dishes. I helped my mother clean the house. I helped my mother ironing some clothes. I vacuumed the floor. I cleaned the floor with a mop. I cleaned the study which was messy. I cleaned the veranda where there were a lot of

2. ## Chemistry

A sample of ammonia gas was allowed to come to equilibrium at 400 K. 2NH3(g) --> N2(g) + 3H2(g) At equilibrium, it was found that the concentration of H2 was 0.0584 M, the concentration of N2 was 0.0195 M, and the concentration of NH3 was 0.430 M. What was

3. ## physics

A charge of 4.00 mC is placed at each corner of a square 1.05 m on a side. Determine the magnitude and direction of the force on each charge.

4. ## Math

David the monkey is looking down at a 33° angle from the top of a tree. There are bananas on the ground 42.7 ft from the base of the tree. If David flies down from the tree in a diagonal path, as shown in the diagram, what distance would he travel? Round

5. ## Math

Jeff is changing the shape of his sandbox from 10 feet long by 12 feet wide to a square that has the same area. What is the perimeter of the square sandbox, rounded to the nearest hundredth?

6. ## Chemistry

For the reaction 2NH3(g) 3H2(g) N2(g) at 472oC equilibrium is established when [H2] =0.0200M, [N2] = 0.0100M and [NH3] = 5.37x10^_8 M. What is the equilibrium constant for the reverse reaction?

7. ## jess

Sadie the dog is sitting on the roof of his doghouse, 4.5 ft off the ground. He is watching a cat that is 16 ft away from the base of the doghouse. What is the angle of depression from the roof of the doghouse to the cat? Round to the nearest hundredth.

8. ## College Chem

How many molecules of CH3OH will contain 3.20 x 10^23 H atoms?

9. ## Math

Solve: 3x + 7y + 5= 0 4x - 3y - 8 = 0 Find p; if: px + y - 1= 0

10. ## Psychology

The facial-feedback hypothesis tells us that? A. smiling makes a person feel better. b. facial expressions are of little importance in communicating. c. we can tell how a person is feeling by his or her facial expression. d. smiling is often a cover-up for

11. ## calculus

A force of 13 N is needed to keep a spring with a 2-kg mass stretched 0.25 m beyond its natural length. The damping constant of the spring is c = 8. If the mass starts at the equilibrium position with a velocity of 0.5 m/s, find its position at time t.

12. ## Probability and Statistics

For questions 1- 5 use confidence intervals to test the hypothesis. 1) A light bulb producing company states that its lights will last an average of 1200 hours with a standard deviation of 200 hours. A sample of 100 light bulbs from the company were tested

13. ## Chem

A mixture containing 5.0 g of H2 and 10.0g of O 2 is allowed to react in a 15.0L container at a constant temperature of 25.0 C. Once the reaction is complete, what will be the pressure of the excess gas inside the container?

14. ## Algorithm

write a pseudo code algorithm that will accept 20 numbers and finds their product

15. ## Algorithm

write a pseudo code algorithm that will accept the marks in a test for a group of 25 students then calculate and display the average mark

16. ## math

A jar contains 3 pink balls, 6 blue balls, and 3 red balls. Event A = drawing a red ball on the first draw Event B = drawing a pink ball on the second draw If two balls are drawn from the jar, one after the other without replacement, what is P(A and B)

17. ## math

there are 10 marbles in a bag: 1 blue, 4 yellow, 3 red, and 2 white. if you choose a marble at random, what is the probability that you will NOT choose white?

18. ## Probability and Statistics

For questions 6 - 10 use the chi-squared distribution to test the hypothesis. 6) A restaurant owner wants to see if the business is good enough for him to purchase a restaurant. He asks the present owner for a breakdown of how many customers that come in

19. ## Math Gr12 (advanced functions)

A tower that is 65m high makes an obtuse angle with the ground. The vertical distance from the top of the tower to the ground is 59m. What obtuse angle does the tower make with the ground?

20. ## English

why wouldn't employees be paid or compensated for extensive overtime? Is the branch following eimployee contractual agreements and agency/branch policies? Is the Roanoke branch operating under different salary scales/schedules than others Phoenix offices?

21. ## Finance Management

CASE STUDY 1 please read the continuing case at the end of Chapters 1 and 2 in your textbook. After studying the Chapter 1 case, respond to the following: 1.At which level do some of the basic functions (cost accounting, reporting tax, patient accounts and

22. ## physical

You are driving along a highway at 27.7 m/s when you hear a siren. You look in the rear-view mirror and see a police car approaching you from behind with a constant speed. The frequency of the siren that you hear is 1830. Hz. Right after the police car

23. ## Integrated Math 1

A valid password on a Web site contains 3 letters (A-Z, 26 total), followed by 3 digits (0-9). Letters and numbers can be repeated. The number of possible passwords equals _____. A. 26*25*24+10*9*8 B. 26^3+10^3 C. 26^3*10^3 D.26*25*24*10*9*8

24. ## algebra

for which values of a and b does the following pair of linear equation have an infinite number of solution ? 2x+3y=7 (a-b)x+(a+b)y=3a+b-2

25. ## algebra

if 2k - 4 = 8, then k is what

26. ## physics

A +5.0 µC charge is placed at the origin and a -3.9 µC charge is placed at x = 25 cm. At what coordinates can a third charge be placed so that it experiences no net force?

27. ## Physics(Rotational Energy)

Suppose three masses are arranged as shown, connected by a rodless mass. (2 kg)-------(6 kg)--------(4 kg) 2m 3m a) If this object is free to rotate in space, about what point will it spin? b) A small mass (m=0.1 kg) drops vertically onto the2 kg mass

28. ## chem

a pipet delivers 9.04,9.02,9.08,9.06 ml in consecutive trials.find the mean volume and the average deviation from the mean

29. ## human biology

A 56 year old obese male is rushed to the ER via ambulance. The EMS team reports he was found non- responsive and in shock. Additionally, they note he has a stiff rigid abdomen and can feel a large lump near the midline. Upon questioning, his wife

30. ## College Chem

A mixture containing 5.0 g of H2 and 10.0g of O 2 is allowed to react in a 15.0L container at a constant temperature of 25.0 C. Once the reaction is complete, what will be the pressure of the excess gas inside the container?

31. ## physics

A block is initially sliding along a horizontal surface with 24.6 J of kinetic energy. Friction causes the block’s speed to be halved in a distance of 3.20 m. a) What is the kinetic energy of the block after traveling the 3.20 m? b) What is the magnitude

32. ## Science

What fraction of the original activity of a radioactive substance will remain at the end of half-life?

33. ## psychology

Is realization (any kind) always a good feeling? If not, can you give examples where it's not? Thank you in advance.

34. ## Physica

If the length of a wire is doubled and its cross – section area decreased to half ,the resistivity of the wire becomes the same ( put true or false) pleas drwls

35. ## civics

What are the constitutional checks on the power of the Supreme Court?

36. ## geometry

If the probability of seeing moose in a day in a certain region of Alaska is 0.74, what is the probability of not seeing any moose in a day there?

37. ## Operating Systems

What two ways (key stroke(s)) do you use to end the COPY CON command?

38. ## Permutations

A valid password on a Web site contains 3 letters (A-Z, 26 total), followed by 3 digits (0-9). Letters and numbers can be repeated. The number of possible passwords equals _____. A. 26*25*24+10*9*8 B. 26^3+10^3 C. 26^3*10^3 D.26*25*24*10*9*8

39. ## Math

If you buy a \$1395 savings bond that pays 4.3% annual simple interest. Determine the value of the bond after 7 years.

40. ## physical

You are playing a note that has a fundamental frequency of 466.16 Hz on a guitar string of length 59.9 cm. At the same time, your friend plays a fundamental note on an open organ pipe, and 4.0 beats per seconds are heard. The mass per unit length of the

41. ## chemistry

At –14.5 °C (a common temperature for household freezers), what is the maximum mass of aspartame (C14H18N2O5) you can add to 3.00 kg of pure water and still have the solution freeze

42. ## Physica

If the length of a wire is doubled and its cross – section area decreased to half ,the resistivity of the wire becomes the same ( put true or false) pleas drwls

43. ## geometry

If the measure of the arc LN=80° and the measure of arc OP=50°, then m∠M=___.

44. ## Chemistry

If you reclaim 0.250g Ag from AgNO3, how much AgNO3 did you have to begin with?

45. ## Chemistry

0.000333 g fluorescein (332.32 g/mol) is dissolved in 225 mL solution of ethanol. The density of ethanol is 0.785 g/mL. What is the concentration of the solution in molarity (M)? How many ppm? I already know that the molarity is 4.45E-6. I just need help

46. ## statistics

A random sample of size 81 is taken from a large population, measuring the time it takes to complete a driver’s license examination. The sample mean was found to be 43 minutes, and the sample standard deviation 5.71 minutes. Construct a 95% confidence

47. ## Statistics

You are getting ready to take a sample from a large population, and need to determine the appropriate sample size. You are estimating sales at a large chain of department stores. A previous survey from the same population found a standard deviation of \$18.

48. ## Mathematics

write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.

49. ## Algebra

Without graphing, describe the end behavior of the graph of f(x) = -5X^2 - 3X + 1 Please explain

50. ## Math

the number sacks necessary for a 4inch sidewalk 6ft wide and 27ft long at 6 sacks of cement per cubic yard of concrete is?

51. ## Permutations

A valid password on a Web site contains 3 letters (A-Z, 26 total), followed by 3 digits (0-9). Letters and numbers can be repeated. The number of possible passwords equals _____. A. 26*25*24+10*9*8 B. 26^3+10^3 C. 26^3*10^3 D.26*25*24*10*9*8

52. ## english

Hi, I posted my essay earlier for punctuation, corrections, and I really need help correcting the following from the essay: -I read the Quran everyday of my life to learn and get inspired from. -The book had this amazing story about a Woman that was cured

53. ## American History

The 1978 Supreme Court decision in Bakke v. Regents of the University of California A. ruled in favor of affirmative action within specified limits. B. established the "red state-blue state" divide. C. ruled against the principle of affirmative action. D.

54. ## math

if iron weighs 0.25lbs. per cubic inch, an iron bar 8'6" by 4" by 1/2" weighs?

55. ## physical

Two people are talking at a distance of 2.49 m from where you are, and you measure the sound intensity as 1.47 · 10–7 W/m2. Another student is 4.79 m away from the talkers. What sound intensity does the other student measure?

56. ## philosophy

Write a 700- to 1400-word fictional dialogue illustrating the ideas of Plato and Aristotle. I don't want someone to do for me just someone to help me start.

57. ## math

i need to divide and simplify 11y-44/25 divided by y-4/35y

58. ## Chemistry

The absorbance of a chlorophyll a standard solution in ethanol (density = 0.785 g/mL) is measured in a 1.3 cm cuvette or path length. The absorbance is 0.435 and the molar absorptivity coefficient is 86,300 M–1cm–1. The molecular weight for chlorophyll

59. ## Chemistry

The absorbance of a chlorophyll a standard solution in ethanol (density = 0.785 g/mL) is measured in a 1.3 cm cuvette or path length. The absorbance is 0.435 and the molar absorptivity coefficient is 86,300 M–1cm–1. The molecular weight for chlorophyll

60. ## Math

What is the length of each side of a square that has the same area as a rectangle that is 12 mm long and 18 mm wide?

61. ## Math

1.) A security code has seven characters. Each code begins with two digits, then two letters, and finally three digits. the number of distinct security codes possible if repetition is allowed? 2.) How many ten digit phone numbers are possible if a number

62. ## physical

You are traveling in a car toward a hill at a speed of 42.1 mph. The car's horn emits sound waves of frequency 251 Hz, which move with a speed of 343 m/s. a) Determine the frequency with which the waves strike the hill. b) What is the frequency of the

63. ## physical

Two identical half-open pipes each have a fundamental frequency of 450 Hz. What percentage change in the length of one of the pipes will cause a beat frequency of 13.0 Hz when they are sounded simultaneously? Assume the speed of sound in air is 342 m/s.

64. ## Math

If there are 7 people at a party and four pizza's and each person eats 3/8 of the pizza. How much pizza is left?

65. ## History

During the Oka Crisis, the Mohawk later surrendered, but the plan for the town of oka to create the land into a golf course was cancelled. Did the Mohawks get to keep their land?

66. ## work

1. You are a member of Special Troop Battalion, 3d BCT, 10th Mountain Division. Your battalion will deploy to Iraq within six months. The battalion commander approved your unit’s METL. The METL identifies critical tasks for each platoon and now it is

67. ## History

Why was Nunavut created? I've done research but no sites tell me exactly why. Was it because the Inuits felt like they needed their own land... etc?

68. ## english

I would like to know if this would be a good thesis to prove for the novel: The Great Gatsby. Thesis: Nick Carraway as the author has both its advantages, and its disadvantages; Nick begins the novel as an objective character full of honest thoughts, yet

69. ## Chemistry

Consider a segment of water in the ocean that has a saturation solubility of 7.5 mg/L of O2. If there are algae in this body of water consuming CO2 at 1.0 mg/hr, how quickly will the water reach saturation if it starts at no O2 dissolved?

70. ## Chemistry

0.000341 g fluorescein (332.32 g/mol) is dissolved in 255 mL solution of ethanol. The density of ethanol is 0.785 g/mL. What is the concentration of the solution in molarity (M)?

71. ## chem

im a bit confused on how and why surface tension and viscosity decrease with increasing temperature?

72. ## government

Courts issued court orders, or i-j--cti---, to make sure that people of color were allowed to vote.

73. ## Health

Visit the website for Board of Medical Examiners or the State Board of Nursing for the state in which you live. Post a 200- to 300-word response to the following: What is the purpose of the agency? What services does the agency perform? How does the agency

74. ## math

the area of a square is 8 square meters . what is the length of one side of the square? round to the nearest tenth if necessary.

75. ## US History and Constition

1. Eli Whitney intended his cotton gin to help eliminate slave labor. Why did it increase it? 2. What is the purpose of the Monroe Doctrine in a paragraph of at least 5 sentences? 3. By 1828 presidential electors were chosen by popular vote in every state

76. ## US History and Constition

1. Eli Whitney intended his cotton gin to help eliminate slave labor. Why did it increase it?

77. ## English

Very weird SAT "sentence completion" question The literal meaning of astronaut is "---" a) Space Jockey b) Cosmic navigator c) Star sailor d) Space pilot e) Sky pilot

78. ## math

1) A light bulb producing company states that its lights will last an average of 1200 hours with a standard deviation of 200 hours. A sample of 100 light bulbs from the company were tested and the researcher found that the average life of each light bulb

79. ## PreCalc

A square has side lengths of 24 cm. It is divided into four equal sections (as shown in the first picture) and then two of those sections are shaded. One of the unshaded sections is then divided into four equal sections and two of those are shaded (as

80. ## US History and Constition

What is the purpose of the Monroe Doctrine ?

81. ## Math

can you show me step by step how tot find the domain of a function like this h(x)=7x-2

82. ## math

show me step by step how to find the domain of this function then graph it g(x)=2x-4

83. ## Sociology

Write a 1,000-1850 -word response in which you consider specific types of communication, common miscommunications among genders, and effective communication strategies. Address the following questions: o What type of verbal and nonverbal communication do

84. ## math

find the area of a rectangle bounded by the axes and one of its corner is a point in the curve y=1/x.

85. ## Medical

Is it true medical assisting are licensed by each state?

86. ## Math 126

These are the automatically computed results of your exam. Grades for essay questions, and comments from your instructor, are in the "Details" section below. Date Taken: 7/15/2012 Time Spent: h , min , 19 secs Points Received: 18 / 20 (90%) Question Type:

88. ## PreCalc

1) Determine the value of r (put this number in the first blank) and then determine the value of the 10th term of the geometric sequence. Do not use any decimals or mixed numbers in your answers. Reduce all fractions to lowest terms. a1 = 2 and a4 = −1/4

89. ## Microecomics

Assume that American rise sells for \$100 per bushel, Japanese rice sells for 16,000 yen per bushel, and the nominal exchange rate is 80 yen per dollar. Explain how you could make a profit from this situation. What would be your profit per bushel of rice?

90. ## accounting

Shopping Center A Square foot: 3,500 Distance: 4 miles Shopping Center B Square foot: 1,500 Distance: 5 miles Shopping Center C Square foot: 300 Distance: 3 miles Use the Huff Gravity model to find the probability that customers will shop at shopping

91. ## Trigonometry

1. ((cosx)/(1 + sinx))+((1 + sinx)/(cosx)) 2. ((cos(x)cot(x))/(1 - sin(x)))-1

92. ## Chem

Can a 100ml sample of 3.0m H2 SO4 could be neutralized by 100 ml of 3.0m NH3

93. ## Math

Solve x/a-y/b =0 ax+by = a*a + b * b

94. ## physical science

a magnet connot be made by

95. ## Math

Solve x/a-y/b =0 ax+by = a*a + b * b

96. ## Math

Solve: i) x/a - y/b = 0 ax + by = a^2 + b^2 ii) a/x - b/y = 0 ab^2/x + a^2 b /y = a^2 + b^2

97. ## organic

2000gram ya 2kg caco3 me mole se atoms se molecuies atoms se proton atoms se neutron atoms se eiectron

98. ## orgenic

117 gram nacl se mole

99. ## English

I studied science last night. I had a good time with my family. I called Eunhui and talked for a long time. I took a shower in the bathroom. I made cheese cakes with my mother. I sent some e-mails to my friends. I bought a wallet at Home Plus. I read a

100. ## PHYSICS

At 25 m from a sound source, the intensity level is 55 dB. What's the level at distance of 56m? What's the level at distance of 273m?

101. ## Math

Solve: 3x + 7y + 5= 0 4x - 3y - 8 = 0 Find p; if: px + y - 1= 0

102. ## Math

Solve: 3x + 7y + 5= 0 4x - 3y - 8 = 0 Find p; if: px + y - 1= 0

103. ## math!!!

Molten plastic is injected into the centre of a circular mold of constant height, H, through a small hole. The rate of injection is such that the radius of the plastic inside the mould increases so that r(t)= 3t^2 -2t^3 where the mold has maximum radius of

104. ## math help!!

Suppose a function, f(x) has a vertical asymptote toward positive infinity at x= -1, A horizontal asymptote at y = 1=2 as x ¨}‡1, and a turning point at (1;-1). Sketch what you think the function would look like.

105. ## maths

Find the speed and direction of a particle which, when projected from a point 15 m above the horizontal ground, just clears the top of a wall 26.25 m high and 30 m away. Thanks!!!!

106. ## SCIENCE

A police man is driving a car with a speed of 30km/h,and firing a bullet having a speed of 150m/s towards another car which is moving ahead with a speed of 192km/f.At what speed will the bullet hit the car?

107. ## chem

three students each measured the boiling point of water at each destination person 1 had boing point of 93.9 c 2nd person found boiling point of 101.1 c 3rd person found boing point of 100.0 c. which student went water skiing in honolulu? which student

108. ## algebra

A rectangular garden, with length twice its width, is to be expanded so that both sides are increased by 3 m. a.) How would you represent the width of the original garden? b.) How would you represent the width of the new garden? How about the length? c.)

109. ## finite math

A box contains 14 balls (10 red and 4 white). Three balls randomly drawn out of the box. Determine the following probabilities: P(three red balls)= P(two red and one white)= P(one red and two white balls)= P(three white balls)=

110. ## chemistry

wh should the maximum percent yield never be above 100%

111. ## Physica

a man pushes a box of mass 5 kg in a horizontal direction by 10 N force on the surface through a distance of 5m if the cofficien of kinetic friction is 0.2 the total work done on the box is

112. ## Physica

(Please put the resulting figures and Thanks)))) a man pushes a box of mass 5 kg in a horizontal direction by 10 N force on the surface through a distance of 5m if the cofficien of kinetic friction is 0.2 the total work done on the box is

113. ## English

1. I failed the bar exam for which I studied day and night. 2. I failed the bar exam for what I studied day and night. (Which one is correct?)

114. ## Physica

If the length of a wire is doubled and its cross – section area decreased to half ,the resistivity of the wire becomes a)the same b)four time c)half d)one fourth e)double

115. ## physics

A person is driving an automobile at 95 km/h and throws a bottle of mass .600 kg straight out the window. a) With what momentum does the bottle hit the roadway sign? b) With what momentum does the bottle hit an oncoming automobile traveling in the opposite