# Questions Asked onOctober 4, 2013

1. ## Chemistry

For the following, 2HBr (aq) + Ba(OH)2 (aq) ---> 2H2O (l) + BaBr2 (aq) write the net ionic equation including the phases

2. ## Chemistry

For the following chemical reaction... HCN (aq) + KOH (aq)----> H2O (l) + KCN (aq) write the net ionic equation, including the phases

3. ## Calc ii

Let f be twice differentiable with (f(0)=4), (f(1)=8), and (f'(1)=6). Evaluate the integral from 0 to 1 of xf''(x)dx\). I have no clue how to approach this since we don't know what the function is? please help, I've finished every other question and the

4. ## Geography (Ms. Sue)

1). How do language and religion reflect the cultural division in Western Europe? A: Language and religion reflect the cultural division in Western Europe as each portion of Western Europe contains cultures in which possesses its own languages and

5. ## math

The number of minutes in an hour is the same as a number times three, minus 3.

6. ## Chemistry

Write the balanced neutralization reaction between H2SO4 and KOH in aq. solution. .350 L of .410 M H2SO4 is mixed with .300 L of .230 M KOH. What concentration of sulfuric acid remains after neutralization? ______ M H2SO4

7. ## Chemistry

NaHCO3 (s) + HC2H3O2 (aq) ---> ?

8. ## Chemistry

Write the balanced equation for (aq) Pb(ClO3)2 and (aq) NaI. Include phases. What mass of precipitate will form if 1.50 L of concentrated Pb(ClO3)2 is mixed with .250 L of .110 M NaI? Assume the reaction goes to completion.

9. ## VNS,Math

Mr. Bobby bought 50 shares at \$60, and 2 months later purchased 25 shares a \$56.at what price should he purchase 25 additional shares in order to have an average price \$58 per share? The average age of a family of 6 members is 25 years. The average of the

10. ## Geography (Ms. Sue)

1). How did conquest influence the languages spoken in Northern Europe? A: 2). How did the Industrial Revolution spur the growth of Britain's empire? A: The Industrial Revolution spurred the growth of Britain's empire as it motivated Britain's empire

11. ## Geography (Ms. Sue)

1). How did the Reformation affect Northern Europe? A: The Reformation affected Northern Europe as it swept through Northern Europe, causing several different Protestant churches to take root there as well as most of the region to remain Protestant. 2).

12. ## physics

The froghopper (Philaenus spumarius), the champion leaper of the insect world, has a mass of 12.3mg and leaves the ground (in the most energetic jumps) at 4.00m/s from a vertical start. The jump itself lasts a mere 1.00ms before the insect is clear of the

13. ## History Question

1) Why did the Middle colonies have the most diverse population in colonial America? (1point) Leaders of the Middle Colonies advertised in Europe to attract more settlers. People moved to the Middle Colonies from New England to escape religious

14. ## Statistics

In an Intro Stats class, 57% of students eat breakfast in the morning and 80% of students floss their teeth. Forty-six percent of students eat breakfast and also floss their teeth. What is the probability that a student from this class eats breakfast given

15. ## Chemistry

Many portable gas heaters and grills use propane, C3H8(g). Using enthalpies of formation, calculate the quantity of heat produced when 15.0g of propane is completely combusted in air under standard conditions. Assume that liquid water is forming.

16. ## geometry

a 16 by 18 foot rectangular section will be covered by square tiles that measured 2 feet on each side if the tiles are not cut how many of them will be needed to cover the section of the wall

17. ## Geometry

Find the volume of a right circular cylinder with a radius of 14in and a height of 21in

18. ## Calculus

Find the area of the region bounded by the graphs of the given equations: y=x, y=2√x

19. ## science

A hot air balloon descends from a pressure of 380 mm Hg to 760 mm Hg and at the high altitude has a volume of 1,000 cubic meters. If the temperature starts at 50 degrees C and changes to 25 degrees C, the new volume will be: a. 100.0 x 50 x 760/25 x 380 b.

20. ## physics

A person is riding on a flatcar traveling at a constant speed v1= 15 m/s with respect to the ground. He wishes to throw a ball through a stationary hoop in such a manner that the ball will move horizontally as it passes through the hoop. The hoop is at a

21. ## Chemistry

Zinc reacts with hydrochloric acid according to the reaction equation... Zn (s) + 2HCl (aq) ---> ZnCl2 (aq) + H2 (g) How many milliliters of 5.00 M HCl (aq) are required to react with 5.55 g of Zn (s)??

22. ## Algebra

A rancher wishes to enclose a rectangular partitioned corral with 1932 feet of fencing. What dimensions of the corral would enclose the largest possible area?

23. ## Statistics

The American Academy of Pediatrics (AAP) recommends that kids 2-5 years old watch no more than (on average) 1.6 hours a day of quality programming. A researcher selected a sample of 101 kids in the neighborhood and asked their parents how many hours per

24. ## Science

contact Lenses improve lives. Contact lenses are an example of an __________. my answer is indepentant variable. Someone help. it's for a science experiment.

25. ## physics

A 4.00 bucket of water is accelerated upward by a cord of negligible mass whose breaking strength is 78.0 . If the bucket starts from rest, what is the minimum time required to raise the bucket a vertical distance of 10.0 without breaking the cord?

26. ## English

......she said, adding in such a case the euro could target the \$1.28 mark. (How do we read '\$1.28 mark'?)

27. ## English

Real money accounts were cited as main sellers of the pair taking it below the \$1.3600 mark. (How do we read '\$1.3600 mark'?)

28. ## English

The greenback's gains were pronounced against the Swiss franc, rebounding from a 1-1/2 year low reached the previous day. (How do we read 'a 1-1/2 year'?)

4=(R-.75R)

30. ## math

Fantasia Florist Shop purchases an order of imported roses with a list price of \$2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount? (Points : 2.5)

31. ## Biology of environment poster project

We went on field trip as class to a pond and lake and we compared the urban pond with natural lake I'm trying to think of title for this study and title has to contain sufficient detail abt what the study is about and the general location of study it

32. ## english

How to write a poem about The seaside?

33. ## algebra

how do you solve for w in a bmi equation, if only height (h=65 inches)is known and w (weight) is what is to be solved for? Bmi=703w/h^2

34. ## Math

A paddle on an antique windmill needs to be visually inspected by a repairmen while the windmill is operating. The paddle can be seen by the repairman when it is at a height of 1.9m on its downward path. If the height of the paddle can be represented by

35. ## Physics

A tennis player hits a ball 2.0 m above the ground. The ball leaves his racquet with a speed of 15.0m/s at an angle 5.3∘ above the horizontal. The horizontal distance to the net is 7.0 m, and the net is 1.0 m high. How much did it clear the net by?

36. ## STAT

You want to determine if your widgets from machine 1 are the same as machine 2. Machine 1 has a sample mean of 15 and a sample standard deviation 6 and a sample size of 18. Machine 2 has a sample mean of 12 and a sample standard deviation of 6 with a

37. ## math

find the root value X + 16/X =8

38. ## science

A man seeking to set a world record wants to tow a 106,000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 77 kg, and the coefficient of static friction between his shoes and the runway is

39. ## Physics

A truck is traveling at a speed of 23.0 m/s along a level road. A crate is resting on the bed of the truck, and the coefficient of static friction between the crate and the truck bed is 0.610. Determine the shortest distance in which the truck can come to

40. ## social studies

Select two groups of Native American people from two different areas within the united states. The areas you can select from include North, West,Southwest, Plains, and East/Southeast. Explain how environmental factors influenced their home and food.

41. ## STATS

The error calculated by ANOVA includes: a) The variation due to experimental error b)The variation due to the influence of third variables c)The variation due to the influence of individual differences between the values d) a, b and c

42. ## STATS

A statistically significant F value means that: a) The influence of the independent variable is less than the error b) he observed differences between groups are due to individual differences of the values and the error c) An effect of the independent

43. ## Reading allusion and anophora

for my reading class i need to "Write a short poem or commercial spot that includes one or more allusions and purposeful anaphora." so i wrote a poem is this good as I am taken away from what was mine I go back in memory wondering how it is possible that

44. ## STATS

Suppose a researcher observed from the analyses carried out the F-values 4.41 and 1.11. Which of the two cases are likely averages not come from the same population (ie, differences not statistically significant); a) none of the above b) 1.11 c) 4.41

45. ## english

"There is no longer any room for hope." by patrick henry title:give me death or hope Would this be pathos ethos or logos I belive this would be pathos because of the emotional sense it. Is this correct/

46. ## math

What is the least number place value blocks you need to show 4,200? The greates?

47. ## AP Chemistry

assuming a density of 1.0 g/mL, calculate the molarity and mole fraction of 3.0% h2o2

48. ## English

1. I really appreciate you saying so! 2. I really appreciate your saying so! (Which one is grammatical?)

49. ## English

1. I appreciate your help. 2. I appreciate you. 3. Thank you for your help. 4. Thank you for your helping me. 5. Thank you for you helping me. (Which ones are grammatical?)

50. ## Math

1. 5(x^2 +2x-6) - 3(2+x-x^2) 2. 2x^4-5x(x^3 -y) + 2y(5x) 3.Factor 2x^5+6x4+4x^3+12x^2 4. Factor 9y^2-18y +8 Please help. Thank you!!

51. ## English

1. There's always a lot of traffic at this time of day. 2. There's always a lot of traffic at this time of a day. 3. There's always a lot of traffic at this time of the day. 4. There's always a lot of traffic at this time of days. 5. There's always a lot

52. ## Calculus

The position of a body at time t sec is s=t^3-6t^2+9t m. Find the body's acceleration each time the velocity is zero.

Suppose you are comparing two numbers that are greater than 100. You want to find the smaller of the numbers. How many pairs of digits might you have to compare before you have your answer? Explain

54. ## Statistics

You are dealt a hand of three cards, one at a time. Find the probability that your third card is your first jack. A) 0.068 B) 0.145 C) 0.127 D) 0.077 E) 0.00018

55. ## Math

If I get 1 dollar for the first A plus 2 dollars for the second A and 4 for the thirs A and so on doubling with each additional A, and I get 8 different grades How do I do this?

56. ## Physics

A jet has 4 engines, each capable of providing 415N of thrust. The mass of the jet is 140,000 kg. What is the greatest acceleration that the jet can achieve?

The direction states.... For this proposed activity, my activity goals and my personal goals are ( these will not be one-in--the-same): I don't understand what is activity goal and what is personal goal. Please give an example

58. ## Chemistry

Can someone walk me through how to work this I have no clue where to start. I have converted grams to moles and Celsius to kelvin but I don't know where to go from there. Thank you! A piece of dry ice (solid CO2, d = 0.900 g/mL) weighing 21.0 g is placed

How did the Townsend act lead to the boston masacare??

60. ## physics

A 74 kg box rests on a level surface. The coefficient of static friction, µS = 1.1 and the coefficient of kinetic friction, µK = 0.7 . What is the magnitude of Friction on the box from the surface?

61. ## Maths

A had the same number of roses as B after A had given 7 of her roses to B. How many more roses did A had than A at first?

62. ## Chemistry

How to differ AgBr from AgI? which is suitable for that among these...? Dil HNO3,Dil HCl,Dil H2SO4,Conc HNO3,Conc Cl3CCOOH

63. ## Geography (Ms. Sue)

1). In what way does Western Europe have a diverse economy? A: Western Economy has a diverse economy as it includes agriculture and manufacturing, as well as high-tech and service industries.

64. ## statistics

An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 25.6 years of age. If the standard deviation is assumed to be 4.1 years, find the probability that a random sample of 30 U.S. women would

65. ## Who has watched V for Vendetta and/or Read 1984

I want to know what scene in V for Vendetta shows the intended message for 1984. If you only have watched v for Vendetta what are some good scenes that shows the authors message. If you only read 1984 what id the authors intended message in the book?

66. ## science

light has what range of wavelength

67. ## Vector Calculus

Thermodynamics texts use the relationship (dy/dx)(dz/dy)(dx/dz) = -1 Explain the meaning of this equation and prove that it is true (Hint: Start with a relationship F(x,y,z) = 0 that defines x = f(y,z), y = g(x,z), and z = h(x,y) and differentiate

68. ## Chemistry

When a sample of I(g) (18.15 mol) is placed in 59.00 L reaction vessel at 605.0 °C and allowed to come to equilibrium the mixture contains 6.938 mol of I2(g). What is the concentration (mol/L) of I(g)? 2I(g) = I2(g)

69. ## Chemistry

When a sample of I2(g) (0.07249 mol/L) is placed in 130.0 L reaction vessel at 865.0 K and allowed to come to equilibrium the mixture contains 0.1110 mol/L of I(g). What concentration (mol/L) of I2(g) reacted? I2(g) = 2I(g)

70. ## Chemistry

When F2(g) (0.02028 mol/L) and 0.02028 mol/L of Cl2(g) in a 460.0 L reaction vessel at 774.0 K are allowed to come to equilibrium the mixture contains 0.02898 mol/L of ClF(g). What concentration (mol/L) of F2(g) reacted? F2(g)+Cl2(g) = 2ClF(g)

71. ## Chemistry

When a sample of NH3(g) (296.5 grams) is placed in 140.0 L reaction vessel at 676.0 °C and allowed to come to equilibrium the mixture contains 6.250 mol of N2(g). What is the concentration (mol/L) of H2(g)? 2NH3(g) = N2(g)+3H2(g)

72. ## Chemistry

When CH4(g) (0.06318 mol/L) and 16.43 mol of H2S(g) in a 130.0 L reaction vessel at 711.0 °C are allowed to come to equilibrium the mixture contains 0.04107 mol/L of CS2(g). What is the equilibrium concentration (mol/L) of H2S(g)? CH4(g)+2H2S(g) =

73. ## Chemistry

When CO2(g) (0.009242 mol/L) and 0.009242 mol/L of H2(g) in a 460.0 L reaction vessel at 619.0 °C are allowed to come to equilibrium the mixture contains 1.327 mol of CO(g). What is the equilibrium concentration (mol/L) of H2(g)? CO2(g)+H2(g) =

74. ## pre algrebra

simplify one half plus two thirds divided by three fourths

75. ## algebra

5.2 x 108 metric tons. What is this number in standard notation? (1 point)

76. ## World History

Describe the movement of the Indo-Europeans in their earliest migration I need a short answer pls!

77. ## English

1. Sam is sitting down in a chair and playing drum. 2. Sam is sitting down in a chair and playing the drum. 3. Sam is sitting down in a chair and playing a drum. 4. Sam is sitting down in a chair and playing drums. 5. Sam is sitting down in a chair and

78. ## chemistry lab

list the possible manipulation errors that might contribute in obtaining a significantly larger amount of nacl than was present in original sample

79. ## chemistry lab

obtaining a smaller amount of sio2 than was present in the original sample

80. ## Material Science

Explain the direction of the six surface wind belts in Fig. 6.24C. Be sure to use the concept of pressure gradient force and the Coriolis effect in your answer.

81. ## DISCRETE MATHS

Use the Euclidean Algorithm to find gcd(112,15)

82. ## Material Science

On the bottom of page 11 in the notes, ΔFa is positive in the tropics and negative near the poles. State what this means physically in terms of energy transport, and explain why these oppositely-signed results occur in terms of the other quantities in the

83. ## Material Science

Show a calculation supporting the value of Ra = -100 W/m2 on the bottom of page 11 in the notes. Hint, consider Figure 4.13 being mindful of units.

84. ## Geography (Ms. Sue)

1). How might having a mixed population affect the stability of Croatia and Bosnia? A: ? 2). How were Serbia's actions in Kosovo similar to its actions in Bosnia and Herzegovina? A: Serbia's actions in Kosovo were similar to its actions in Bosnia and

85. ## Journey Career

For a exploratory interview I need some help... What are all of the didn't kinds of pathways for a Cosmetologist? What is a career field? What is a career cluster?

86. ## Material Science

Explain how the five labeled ocean gyres in Fig. 6.38 arise from the atmospheric general circulation, being explicit about vertical atmospheric circulation cells and surface pressure centers.

87. ## Physics

A stone is thrown from ground level at 84 m/s. It's speed when it reaches it's highest point is 50 m/s. Find the angle, above the horizontal, of the stones initial velocity.

88. ## Econometrics

If the price of 1 pound of cereals is \$10 and the price of a sword is \$100, what is the wage rate paid to Hobbits in the Shire? How many Hobbits work in the cereal sector? In sword sector?

89. ## Econometrics

Because of the War of the Ring, the price of a sword went up to \$150. Calculate new wage and employment level in each sector.

90. ## Water Treatment, Chemistry

The capacity of the groundwater treatment plant has recently been expanded to receive an additional 50,000 m3/year. As a result, all of the 6 rapid sand filtration are being operated. Assume a peak flow factor of 1.5. If the filtration rate is 5 m/h, what

91. ## Econometrics

Do Hobbits gain or lose if the price of a sword goes up to \$150? (To answer the question, calculate their real wages before and after the price change).

92. ## water treatment,chemistry

If the RQ is 6 and the k2t is 4, what is the removal efficiency of (CO2) of the co-current tower aerator. What will be the efficiency if a tower aeration with counter current flow is used instead? The efficiency of the co-current tower aerator (%): ____

93. ## History

Which of the following is not a type of North American Colonies? charter proprietary royal military I think the answer is military

94. ## english

When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects

95. ## MATH SINUSOIDAL APPLICATION

Would pulling a roll of thread create a sinusoidal function? please suggest some real life application of sinusoidal wave that i can experiment with...

Identify the missing info that would be necessary to solve the following which type of graph would be more appropriate to represent the number of inches of rain during a 6 - week period a bar graph or a line graph? AND WHATS MISSING

97. ## URGENT ALGEBRA 2

identify the vertex and the axis of symmetry of the graph for the function y=3(x+2)^2 a.vertex(2,-3 axis of symmetry x=2 b.vertex(-2,-3) axis of symmetry x=-2 c.vertex(2,3) axis of symmetry x=2 d.vertex(-2,3) axis of symmetry x=-2 identify the maximum or

98. ## statistics

Use the normal dist to approx the desired prob. Find the prob of getting at most 30 fives in 200 tosses of a fair 6 sided die

99. ## physics

(a) What is the escape speed on a spherical asteroid whose radius is 435 km and whose gravitational acceleration at the surface is 0.632 m/s2? (b) How far (in km) from the surface will a particle go if it leaves the asteroid's surface with a radial speed

100. ## Chemistry

The flask here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains .270 M NaOH. What volume of NaOH is needed to reach the end point of titration? What was the initial concentration of HCl?

101. ## physics

(a) What is the escape speed on a spherical asteroid whose radius is 435 km and whose gravitational acceleration at the surface is 0.632 m/s2? (b) How far (in km) from the surface will a particle go if it leaves the asteroid's surface with a radial speed

102. ## SS

What do colonialism and imperialism both require? a) one country giving money to another b) two countries sharing c) two countries working together d) one country ruling another country D What is one negative effect of the huge oil reserves in Nigeria? a)

103. ## Health

Increasing your daily bike ride from 30 minutes to 45 minutes is an example of using which tarining principle of fitness? frequency intensity time type I think the amswer is intensity

104. ## Enlish III

In his autobiography, Timebends, Arthur Miller writes that “the real story” of the Salem witch trials is to be found in “the breaking of charity” within a human community. Write a brief essay explaining what you think Miller means by this

105. ## social studies

men from higher social classes in------ cultures tend to have low levels of conformity, more self-direction, and have greater intellectual flexibility than did men from lower social classes A) collectivist B) individualist C) interdependent D) all My

106. ## English II - Poisonwood Bible

I'm trying to come up with a thesis statement also I need help with a question. How does Leah Price's changes in the book change us, the reader? As for my thesis statement, I have sort of an idea of what I want it to be like... Leah alienates herself from

107. ## Health

a 14 year old boy has a resting heart rate of 76. using lower and upper reserve training percents of 50 and 85 what is his target heart range? 110 to 180 130 to 206 141 to 186 144 to 206

108. ## algebra can someone help my buddy ray out

identify the vertex and the axis of symmetry of the graph for the function y=3(x+2)^2 a.vertex(2,-3 axis of symmetry x=2 b.vertex(-2,-3) axis of symmetry x=-2 c.vertex(2,3) axis of symmetry x=2 d.vertex(-2,3) axis of symmetry x=-2 identify the maximum or

109. ## health care reform

Why did President Clinton's health reform plan in the 1990's never pass?

110. ## Algebra

What is the value of x in the solution of this system? -3x-y+2z = 7 2y+z= -5 3x+6y= -21 4 2 1 3

111. ## health care policy

How do I format an essay with three sources. show an example

112. ## Algebra

a City's transit authority serves 178500 communters daily when the fare is \$1.90. Market research has determined that every penny decrease in the fare will result in 1,050 new riders. what fare will maximize revenue?

113. ## statistics

2. The National polling organization conducted a phone survey of 850 American adults on what they considered to be the most serious problem facing nation’s public schools; 30% said violence. This sample percent is an estimate of the percent of all adults

114. ## Algebra

Which ordered triple is a solution of this system? 2x+y-z=7 -x-2y+4z=-15 x+2y=5z=17 (-2, 6, -5) (1, 3, 2) (2, 5, -2) (3, 1, 0)

115. ## Statistics

1.The average number of acts of physical violence in a random sample of 150 TV movies was 4.5 acts with a standard deviation of 0.75. At the 95% confidence interval level, what is your estimation of the mean range of all movies shown in the television?

116. ## physics

A 4.00kg kg bucket of water is accelerated upward by a cord of negligible mass whose breaking strength is 73.0N N .

117. ## math

Charlie has agreed to mow his neighbor’s lawn each week and will baby-sit some hours. If he makes \$100 or more each week, his parents will charge him rent. How many hours should Charlie agree to baby-sit each week to avoid paying rent?

4=(R-.75R)

119. ## Social Studies

What do colonialism and imperialism both require? a) one country giving money to another b) two countries sharing c) two countries working together d) one country ruling another country D What is one negative effect of the huge oil reserves in Nigeria? a)

120. ## physics

The position of a 2.75×10^5 N training helicopter under test is given by r =(0.020m/s 3 )t^3 i ^ +(2.2m/s)tj ^ −(0.060m/s 2 )t^2 k ^. find the net force of the helicopter at t=5.0s

121. ## College Algebra

A rancher wishes to enclose a rectangular partitioned corral with 1932 feet of fencing. What dimensions of the corral would enclose the largest possible area? Find the maxium area.

122. ## Health

a 14 year old boy has a resting heart rate of 76. using lower and upper reserve training percents of 50 and 85 what is his target heart range? 110 to 180 130 to 206 141 to 186 144 to 206