Popular questions and responses by casey
  1. chemistry

    What volume of 4.50M HCl can be made by mixing 5.65M HCl with 250 mL of 3.55M HCl?

    asked on July 24, 2010
  2. Calculus

    A sporting goods store sells 100 pool tables per year. It costs $20 to store one pool table for a year, based on the average inventory on hand. It costs $40 for each delivery of pool tables. How many times per year and in what lot size should the store

    asked on March 3, 2012
  3. english

    All of the following items are expressed in the subjunctive except _____. a wish a condition contrary to fact a that clause expressing necessity a statement of fact

    asked on November 20, 2014
  4. Algebra

    A ball is thrown into the air. The height h, in feet, of the ball can be modeled by the equation h= -16t^2+20t+6, where t is the time, in seconds, the ball is in the air. When will the ball hit the ground? first should I use x= -b/2a?

    asked on June 6, 2013
  5. chemistry

    write and equation for the reaction of triethylamine and water. does the eqilibrium go to the right or left. so far what I have is C6H15N + H2O but I'm not sure of the products

    asked on April 12, 2012
  6. Chemistry

    Which pair of molecules has the strongest dipole-dipole interactions? a- CO2 and CO2 b- CO2 and CH4 c- NH3 and NH3 d- NH3 and CH4 e- CH4 and CH4 Would it be C?

    asked on November 8, 2009
  7. chemistry

    An aqueous solution is 22.0% by mass silver nitrate, AgNO3, and has a density of 1.22 g/mL. what is the molality of silver nitrate in the solution?

    asked on June 12, 2011
  8. algebra

    Suppose the speedometer in your car reads 55.0 mph also written as mile/hour. What is your speed in m/sec? (1 km = 0.621 mi.) unit factor methond soooo lost on this one please help!!!

    asked on April 3, 2011
  9. English/concrete nouns

    Select all of the concrete nouns. iron anger faith toolbox perseverance lamb grace tooth I think it's B,C,E, and G

    asked on November 21, 2014
  10. US Government

    _________ allows States to split their electoral votes to mirror the popular vote within the particular State. A) Direct Popular Election B) The Proportional Plan C) The District Plan D) The National Bonus Plan

    asked on July 15, 2014
  11. Algebra 1

    Given: 5x - 6y = 0. What is the x-intercept? (0, 0) (-1/5, 0) (0, 1/6) no intercept

    asked on October 24, 2014
  12. US Government

    In the beginning of our nation seats were reapportioned after the first three years, but today we reapportion seats in the House every 10 years. A) True B) False

    asked on July 12, 2014

    Identify the word in italics. This is the dog I was telling you about. demonstrative pronoun indefinite pronoun interrogative pronoun relative pronoun not a pronoun

    asked on September 26, 2014
  14. trigonometry

    simplify sin7x-sin3x as a product of trig functions.

    asked on April 19, 2011
  15. Chemistry

    How to calculate the energy required for the gas phase process represented by Na(g) + Br(g) -> Na+(g) + Br- (g)

    asked on March 22, 2020
  16. Int.Science/laws of thermodynamics

    Watch the heat engine animation in the lesson text above. Does this animation illustrate a "new and improved" heat engine? yes no

    asked on November 24, 2014
  17. English

    If a letter is brief, be sure to explain why. True False

    asked on September 30, 2014
  18. US Government

    The major television networks' share of viewers was greatly reduced by the growth of A) newspapers B) PBS C) cable television D) political parties

    asked on July 9, 2014
  19. chemistry

    Nitrogen gas can be prepared by passing gaseous ammonia over solid copper (II) oxide at high temperature. The other products of the reaction are solid copper and water vapor. If a sample containing 20.3 g of NH3 is reacted with 95.8 g of copper oxide 1.

    asked on November 8, 2016
  20. Physics Block and ramp

    A crate of mass 0.812 kg is placed on a rough incline of an angle 35.3 degrees. Near the base of the incline is a spring of spring constant 1140 N/m. The mass is pressed against the spring a distance x and released. It moves up the slope 0.169 meters from

    asked on June 6, 2011
  21. trig

    convert the point with polar coordinates (2,7pi/6) into rectangular coordinates.

    asked on April 19, 2011
  22. Trig problem

    What is a coterminal angle with 170 degrees?

    asked on August 14, 2009
  23. Government

    Why didn't Georgia send delegates to the First Continental Congress? They were the only state that didn't and i have a theory but i'm not quite sure. Just wanted to get others thoughts. Thank ya!

    asked on September 30, 2007
  24. Physics

    A car uniformly accelerates from 0 to 27.0 m/s. A 68.0-kg passenger experiences a horizontal force of 390.0 N. 1)How much time does it take for the car to reach 27.0 m/s? (Express your answer to three significant figures.) My teacher didn't explain how we

    asked on November 7, 2016
  25. English

    In American English, a collective noun used as a unit takes _____ verbs and pronouns. singular plural

    asked on November 24, 2014
  26. english

    Identify the italicized phrase in the following sentence. Jolene went to the city to find a new job. adverb adjective noun

    asked on September 26, 2014
  27. US Government

    True or False. Two interest groups, the League of Women Voters and Common Cause, fight to promote the public interest; in other words, they fight to promote people voting and ethical government.

    asked on July 9, 2014
  28. Algebra

    What is the factored form of 6x^4-21x^3-12x^2 ?

    asked on June 17, 2013
  29. chem-carbs

    D-ribose is treated with a mild oxidizing agent. What is the product of this reaction?

    asked on March 12, 2012
  30. Calculus

    Suppose the revenue from producing and selling x units of a given product is given by R(x)=10x-0.02x^2 a) Find the number of units produced if the revenue is $800. I really need help with this, I don't know what to do?

    asked on February 3, 2012
  31. English Literature

    What is the difference between realism and naturalism?

    asked on January 15, 2012
  32. Chemistry

    The density of Hg is 13.6g/cm^3. How many Hg atoms are present in 10.0cm^3 of Hg? I think the size of an atom is 6.22 x 10^23. The answer is 4.08 x 10^23. I need help getting to the answer.

    asked on July 10, 2010
  33. science

    1. If you turn on the burner on a gas stove under a pan of cold water, energy moves from the burner to the pan of water. What is this type of energy transfer called? 2. If you burn wood in a fireplace, which type of energy resource are you using? 3. Which

    asked on December 12, 2018
  34. Statistics

    The heights of American women ages 18 to 29 are normally distributed with a mean of 64.3 inches and a standard deviation of 3.8 inches. An American woman in this age bracket is chosen at random. What is the probability that she is less than 70 inches tall?

    asked on July 7, 2017
  35. Statistics

    Salaries of 50 college graduates who took a statistics course in college have a​ mean, x of $68,200. Assuming a standard​ deviation, σ​, of $12,279​, construct a 95% confidence interval for estimating the population mean μ.

    asked on November 28, 2016
  36. English

    The short story "The Whit Knight" it says "on the edge of the forest of life" what does that mean ?

    asked on February 2, 2016
  37. Int.Science

    How much energy is needed to heat and melt 3.0 kg of copper initially at 83°C? Be mindful of significant figure rules for both multiplication and addition. 450 kcal 430 kcal 280 kcal 130 kcal

    asked on November 20, 2014
  38. English

    A business letter does not serve as a record of a transaction. True False

    asked on September 30, 2014
  39. English

    Typed or printed letters should always contain _____. a formal salutation a handwritten signature contractions block paragraphs

    asked on September 30, 2014
  40. Math

    A rectangle is 6 cm long and 5 cm wide. When each dimension is increased by x cm, the area is tripled. Find the value of x.

    asked on December 6, 2012
  41. intro chem

    What is the mass of carbon dioxide produced if 1.95 g sodium carbonate is used?

    asked on July 15, 2012
  42. Calculus

    A sporting goods store sells 100 pool tables per year. It costs $20 to store one pool table for a year, based on the average inventory on hand. It costs $40 for each delivery of pool tables. How many times per year and in what lot size should the store

    asked on March 3, 2012
  43. Physics Please help!

    the coefficient of static friction between the coffee cup and the roof of a car is 0.28, If the maximum acceleration the car can have without causing a cup of coffee (on the top of the car) to slide is 2.7 m/s^. What is the smallest amount of time in which

    asked on January 5, 2012
  44. American government

    Outside lobbying does not include the use of: a. Campaign contributions to legislators who favor the interest group. b. Face to face exchanges between lobbyist and policymakers. c. Targeting group resources on key election races. d. The news media to

    asked on October 4, 2011
  45. Physics

    A binary star system consists of two equal mass stars that revolve in circular orbits about their center of mass. The period of the motion, T=29.6 days, and the orbital speed v= 220 km/s of the stars can be measured from telescopic observations. What is

    asked on July 12, 2011
  46. Physics - Spring gun

    A spring gun is made by compressing a spring in a tube and then latching the spring at the compressed position. A 4.87-g pellet is placed against the compressed and latched spring. The spring latches at a compression of 4.87 cm, and it takes a force of

    asked on May 29, 2011
  47. Physics

    A pendulum of length L=26.0 cm and mass m= 168 g is released from rest when the cord makes an angle of 65.2 degrees with the vertical. A) how far (m) does the mass fall before reaching its lowest point? My work: .26m - .109 = .151 m B) how much work (J) is

    asked on May 26, 2011
  48. trig

    simplify the expression: sin(theta+pi/4) + sin(theta-pi/4)

    asked on April 19, 2011
  49. UNCP

    In a study of worker efficiency at Wong Laboratories it was found that the number of components assembled per hour by the average worker t hours after starting work could be modeled by the formula. Rewrite the formula by factoring the right-hand side

    asked on January 7, 2011
  50. Earth Science

    How many hours of daylight occur at the following locations on the specified dates? March 22 ---------------- 40 degrees north 0 degrees 90 degrees south December 22 ---------------- 40 degrees north 0 degrees 90 degrees south

    asked on October 29, 2010
  51. Statistics

    A lottery ticket has a grand prize of $28 million. The probability of winning the grand prize is .000000023. Based on the expected value of the lottery ticket, would you pay $1 for a ticket? Show your calculations and reasoning clearly.

    asked on August 29, 2010
  52. Chemistry

    Which pair of molecules has the strongest dipole-dipole interactions? a- CO2 and CO2 b- CO2 and CH4 c- NH3 and NH3 d- NH3 and CH4 e- CH4 and CH4 how do you figure out the answer to this question?

    asked on November 8, 2009
  53. science

    h t t p: / / tinypic . co m/r/f2vw1w/3 In the link above (take out the spaces) there is supposed to be a picture representing a foodweb. 1. Which letter is the producer? Is it A? 2. I'm not sure what B and C would represent? A. producer B. primary consumer

    asked on August 30, 2009
  54. social studies; AP US

    Which of the following is most opposed to the concept of imperialism? a. the Northwest Ordinance b. The Treat of Paris, 1898 c. the writings of Alfred Thayer Mahan d. dollar diplomacy e. Manifest Destiny I think that its A but im not sure

    asked on January 19, 2009
  55. social studies; AP US

    the New Manifest Destiny of the 1890's came about because of all the following reasons EXCEPT a. the competition with European Powers b. Alfred Thayer Mahan's "The Influence of Seapower Upon History" c. Rudyard Kipling's ideas d. William Jennings Bryan's

    asked on January 19, 2009
  56. Economics

    Country A and B are small open economies. Their economies depend on each other heavily for trade, but their respective governments don't always work together when setting economic policy. Assume (for simplicity) that these countries only trade with each

    asked on June 9, 2020
  57. US History

    Articles of Confederation - Did not grant a federal power to tax or regulate commerce - Did not establish a common currency - Did not establish an executive or judical branch What does the list suggest about the drafters of the Articles of Confederation?

    asked on November 20, 2019
  58. Physics

    1.A block accelerates at 3.1 m/s2 down a plane inclined at an angle 24.0◦. Find μk between the block and the in- clined plane. The acceleration of gravity is 9.81 m/s2 . 2.A 1200 kg car moves along a horizontal road at speed v0 = 20.1 m/s. The road is

    asked on November 2, 2016
  59. Business math

    Compute the difference between the ordinary interest and the exact interest for a loan with a principle amount of $1100 at 12 percent for 120 days. I'm getting $0.60 Can you check my work?

    asked on February 21, 2015

    The earth can be considered a heat engine because it receives heat from the sun and converts it into mechanical energy to produce winds and evaporate water. True False

    asked on November 24, 2014
  61. english

    Select all that apply. Which of the following can function as adjectives? infinitive phrase gerund phrase participial phrase

    asked on November 20, 2014
  62. Algebra 1

    Given: x + 2y = -6. Solve for y.

    asked on October 24, 2014

    An inverse relationship can be represented by: a straight line a bar chart

    asked on October 23, 2014
  64. Physics

    A freight train has mass of 1.6 x 107 kg. If the locomotive can exert a constant pull of 760000 N, how long does it take to increase the speed of the train from rest to 79 km/h? Answer in units of min.

    asked on October 4, 2014
  65. english

    A prepositional phrase can function in a sentence as _____. an adverb phrase a noun phrase

    asked on September 26, 2014
  66. US Government

    -------- allows the voters to directly elect the president. A)The District Plan B) Direct Popular Election C) The Proportional Plan D) The National Bonus Plan

    asked on July 15, 2014
  67. US Government

    True or False. Public opinion polls are consistent & reliable, and allow one to measure the intensity, stability, and/or relevance of all opinions studied.

    asked on July 9, 2014
  68. US Government

    True or False.If candidates receive federal aid for campaigning, then there is a limit placed on how much of their own money they may spend.

    asked on July 9, 2014
  69. US Government

    Public opinion is crucial in a democracy, for if we are truly a government "for the people, by the people," it is then essential that we know what the people think and want. True or false?

    asked on July 8, 2014
  70. math 6th grade

    a tiger can eat 15% of his body weight he eats 75lbs how much does he weigh

    asked on December 11, 2013
  71. Statistics

    Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 375 324 H 414 333

    asked on October 29, 2013
  72. Chemistry

    An unknown compound contains only C, H, and O. Combustion of 4.50 g of this compound produced 10.2 g of CO2 and 4.19 g of H2O. What is this empirical formula of the unknown compound?

    asked on September 21, 2013
  73. Algebra

    Solve the system of inequalities. y 6 So I just want y alone. For the second inequality, I added 3x to both sides and got -2y> 3x+6. Then I divided both sides by -2. I got y> -3/2 - 3 Do I have to switch the inequality symbol or something?

    asked on February 12, 2013
  74. physical science

    on hole 9,Bill hit a golf ball. The golf ball weights 0.45 kg.The acceleration on the ball was 4/m/s2. What was the force of Bill swing?

    asked on December 11, 2012
  75. MATHS

    Find the area of the region bounded by the curve of sin x between x = 0 and x = 2π.

    asked on November 27, 2012
  76. Algebra 2

    The excursion boat on the river takes 2½ hours to make the trip to a point 12 miles upstream and to return. If the rate at which the boat travels in still water is 5 times the rate of the river current, what is the rate of the current? Which of the

    asked on October 13, 2012
  77. Chemistry

    Suppose the atmospheric pressure during the experiment was 751 mmHg. The temperature of the water was found to be 23.0 degrees celsius. What is the pressure of the oxygen gas, Po2 that is produced?

    asked on September 27, 2012
  78. Math

    round each number to the place of the underlined digit 165,023,912 the one is underline?

    asked on September 17, 2012
  79. Chemistry

    An automobile gasoline tank holds 20.0 gal when full. How many pounds of gasoline will it hold if the gasoline has a density of 0.560 g/mL?

    asked on September 10, 2012
  80. 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

    asked on July 16, 2012
  81. Calculus Max/Min Prob

    At 7:00 am, one ship was 60 miles due east from a second ship.If the first ship sailed west at 20 mph, and the second ship sailed southeast at 30 mph, at what time are they closest together?

    asked on May 10, 2012
  82. Math

    A contractor gives a quote of $21,060 to build an 18 foot by 24 foot barn. What is the building cost per square foot?

    asked on April 8, 2012
  83. Accounting

    Identify each statement as true or false. If false, indicate how to correct the statement. 1. Depreciation is a process of asset valuation, not cost allocation. 2. Depreciation provides for the proper matching of expenses with revenues. 3. The book value

    asked on April 2, 2012
  84. Accounting

    Hayes Warehouse distributes hardback books to retail stores and extends credit terms of 2/10, n/30 to all of its customers. During the month of June, the following merchandising transactions occurred June 20 Purchased books on account for $720 from Cook

    asked on February 15, 2012
  85. physics

    if you have and open end air column with a length of 75.0 cm and the fifth harmonic is 1175 hz, what is the fundamental frequency? what is the speed of the wave?

    asked on December 6, 2011
  86. math


    asked on December 6, 2011
  87. Chemistry

    Assuming that the smallest measurable wavelength in an experiment is 0.410 fm (femtometers), what is the maximum mass of an object traveling at 815 m*s^-1 for which the de Broglie wavelength is observable?

    asked on November 2, 2011
  88. math

    if the ratio of rose bushes to trees in the yard is 3 to 1. Which of these shows possible numbers of roses to trees in the yard.

    asked on October 26, 2011
  89. english

    A list of works cited should include: a.All the works you read while writing your paper b.All of the works you used in your paper. c.All of the works you could find while writing your paper. i think its b.

    asked on October 3, 2011
  90. Sociology

    Define Sexual Selection?

    asked on September 29, 2011
  91. Math

    Determine if it is always sometimes never or always true - ray LJ and ray TJ are opposite rays -the intersection of two planes is a point

    asked on September 12, 2011
  92. Math

    FACTOR COMPLETELY 6abcx^2-42abcx-468abc

    asked on September 12, 2011
  93. Math

    Cans of soup 1 2 3 4 Number of servings 4 8 12 16 Write a function rule

    asked on August 28, 2011
  94. Manufacturing Process

    THe ability of a sand mold to with stand high temperatures depends on its A. clay content B Sand Content C. Water Content D Wax Content

    asked on August 23, 2011
  95. Physics

    In an intense battle, gunfire is so intense that bullets from opposite sides collide in midair. Suppose that one (with mass M= 5.12 g moving to the right at a speed V= 214 m/s directed 21.3 degrees above the horizontal) collides and fuses with another with

    asked on June 28, 2011
  96. Physics

    A ball is thrown upward and allow to fall under the influence of gravity. We will ignore the effects of air resistance. We consider three times: Time A, when the ball is first thrown upward, Time B when the ball reaches the peak, and Time C when the ball

    asked on June 18, 2011
  97. Physics- bungee jump

    A tall bald student (height 2.1 meters and mass 91.0 kg) decides to bungee jump off a bridge 36.7 meters above the river. The bungee cord is 25.3 meters long as measured from the attachment at the bridge to the foot of the jumper. Treat the bungee as an

    asked on June 6, 2011
  98. Physics

    A child rides on a Ferris Wheel at the State Fair. The seat always faces to the right. There are three forces that act on the child,the child’s weight, W, the normal force of the seat,N, and the force of friction between the child and the seat, f. At

    asked on May 26, 2011
  99. Physics - Multiple choice

    An object is moving in a circle at a constant speed. From this you can be certain that a) there are at least two forces acting on the object, which balance each other. b) there are at least two forces acting on the object, which do not balance each other

    asked on May 26, 2011
  100. trig


    asked on April 19, 2011


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