Questions Asked on
August 11, 2010

  1. Chemistry

    1. A sample of argon gas is at a pressure of 1.24 x 10^4 kPa and a temperature of 24°C in a rigid 25-L tank. How many moles of argon does this tank contain? I ended up with .130 but its 130 Can someone tell me what I did wrong? This whole chapter on gases

    asked by Anonymous
  2. Physics

    We can reasonably model a 75 W incandescent light bulb as a sphere 6.0 cm in diameter. Typically, only about 5% of the energy goes to visible light; the rest goes largely to non-visible light infrared radiation. (a) What is the visible light intensity (in

    asked by Brittany
  3. U.S government

    Which statement best expresses the meaning of the opening words of the U.S. Constitution, "We, the people..."? A. sovereignty is derived from the consent of the governed B. all citizens are guaranteed freedom of speech C. federal laws are subject to

    asked by jenny
  4. math

    If a ball is thrown straight up into the air with an initial velocity of 95 ft/s, it height in feet after t second is given by y=95t–16t2. Find the average velocity for the time period begining when t=1 and lasting (i) 01 seconds: (ii) 001 seconds: (iii)

    asked by Jin
  5. trigonometry

    two points, A and B, are 526 meters apart on a level strecth of road leading to a hill. The angle of elevation of the hilltop from A is 26deg30mins, and the angle of elevation from B is 36deg40mins. How high is the hill?

    asked by Winsel
  6. Chemistry

    Calculate the freezing point of the following solutions, assuming complete dissociation.3.7% KCL by mass (in water)

    asked by jamela
  7. algebra

    How do you write a real-world scenario that could be represented by the inequality 4x + 2y 40 and how are you supposed to choose one ordered pair that is a solution to the given inequality and explain what that ordered pair means in the context of your

    asked by Ka'Sandra
  8. U.S government

    Which institution developed outside the limits of the written Constitution of the United States? A. legislative branch B. political parties C. Supreme Court D. Electoral College

    asked by jenny
  9. MATH

    A SOCCER TEAM PLAYED 160 GAMES AND WON 65 PERCENT OF THEM. HOW MANY GAMES DID THEY WIN?

    asked by JAMIE
  10. chemistry

    The cola sample is 50. mL, the equivalence point volume is 13.4 mL, and the NaOH solution concentration is 0.025 M, what mass of H3PO4 was in the sample?

    asked by Kris
  11. trigonometry

    A 36 ft. ladder is used to reach the top of 28ft. wall. If the ladder extends 2 ft. from the top of the wall, find its inclination to the horizontal.

    asked by Winsel
  12. Social studies

    History of social studies in britain

    asked by Louis
  13. Physics - Inclined Motions

    You are pushing a 53kg crate at a constant velocity up a ramp onto a truck. The ramp makes an angle of 22deg with the horizontal. If your applied force is 373N, what is then coefficient of friction between the crate and the ramp?

    asked by Shaila
  14. math

    An open box is to be made from a flat piece of material 18 inches long and 2 inches wide by cutting equal squares of length xfrom the corners and folding up the sides. Write the volume Vof the box as a function of x. Leave it as a product of factors, do

    asked by Jin
  15. college

    I need opinions on social issues of human trafficking. This is what I have so far Human trafficking is a serious social issue around the world, because it violates human rights. The human and social issues of human trafficking can consist of: Physical

    asked by patiance
  16. english

    in the diary of anne frank. how does anne use imagery to describe both the environment of her hiding place and the people in it.

    asked by jacob
  17. Algebra

    Randy, Sam, Tim and Will counted the number of puzzles they had solved in two months. Sam has solved twelve more than Tim. Randy had solved seventeen less than Sam.Will had solved twice as many as Randy. They have solved a total of 267 problems. How many

    asked by David
  18. Physics - Vertical Motion

    A 64kg person is standing on a scale in an elevator. the elevator is rising at a constant velocity but then begins to slow, with an acceleration of 0.59m/s^2. What is the sign of the acceleration? What is the reading on the scale while the elevator is

    asked by Shaila
  19. COLLEGE

    I need imput on what I have on social issues of human trafficking Human trafficking is a serious social issue around the world, because it violates human rights. The human and social issues of human trafficking can consist of: Physical abuse of victims,

    asked by patiance
  20. English

    How does Anne use imagery to describe both the environment of her hiding place and the people in it?

    asked by Jacob
  21. chemistry

    Calculate the density of an object having a mass of 17g and a volume of 3 cm cubed. Thanks

    asked by Haiden
  22. math

    Suppose a reporter sees a graph with the following headline: Average Number Of Firearms Per Owner: 4.5; Then she creates a headline for her newspaper: Every Person in The U. S. Owns More Than Four Firearms. Should her editor accept the headline? Explain

    asked by Sarah
  23. Physics - gravitational acceleration

    How does and Atwood machine make it easier to determine g - the acceleration due to gravity, rather than by just measuring the acceleration of a free-falling object?

    asked by Shaila
  24. College Algebra

    Cleaning sidewalks. Edgar can blow the leaves off the sidewalks around the capitol building in 2 hours using a gasoline-powered blower. Ellen can do the same job in 8 hours using a broom. How long would it take them working together? If someone can show me

    asked by Misty
  25. math algebra

    Part 1: Which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring and why? 1. −b 2. b2 − 4ac 3. 2a Part 2: Create your own quadratic equation. Using complete sentences, and your answer from part 1,

    asked by Ka'Sandra
  26. Finance

    Suppose that your client decides to invest in your portfolio a proportion y of the total investment budget so that the overall portfolio will have an expected rate of return of 16%. a. What is the proportion y?

    asked by sam
  27. Physics

    The flywheel is initially at rest. A force of 250 N is applied tangentially to the rim, causing it to rotate about its central axis. what is the energy acquired by it after 1 minute? can anyone help me with this?

    asked by Oisin
  28. math

    If a pyramid is sliced by a plane parallel to the base of the pyramid and that plane bisects the altitude of the pyramid, what percentage of the volume of the pyramid lies below the slicing plane?

    asked by Kyle
  29. Algebra

    Abby has four times as many pictures as Sally. Abby had 18 more pictures than Sally. How many pictures did each girl have?

    asked by David
  30. math

    a is the set of siamese cats b is the set of cats how do I determine whether the pairs of sets are equal, equivalent, both or neither?

    asked by Katherine
  31. english

    Here is my thesis statement... arugment paper on should women be drafted? How is it? For years women have pused for equal rights. They have acheived these goals and recived the right to vote. Historically, along with the right to vote comes the duty to

    asked by batman
  32. Chemistry

    Procedure #1 PLEASE NOTE: Titration requires several steps in order to obtain exact results. The procedures described in this lab assume that you have already done the TITRATION TUTORIAL and are familiar with the technique. 1. Take a clean Erlenmeyer flask

    asked by annonomus
  33. Algebra

    Bill has 12 more than three times the number of baseball cards Chyris has. Bill has 42 cards more than Chris. How many baseball cards does Chris have?

    asked by David
  34. biology

    Identify one specimen of each of the following a)monera, b) protists c)fungi. Also distinguish the differences among the groups

    asked by annonomus
  35. Financ

    What are your client’s investment proportions in your three stocks and the T-bill fund? c. What is the standard deviation of the rate of return on your client’s portfolio?

    asked by sam
  36. Cis/105

    Besides budgeting - What are some uses for MS Excel we did not cover in class? Can you think of any other way you could use this application? Explain. How are my assignments i learn. computer comarison,Data versus information,Technology of future, Internet

    asked by Tonya
  37. chemistry

    An element has an ion with +2 charge.It has 38 electrons and 51 neutrons. write the nuclear symbol for the element.

    asked by lucas
  38. american government

    Some analysts maintain that the United States is poorly served by a Congress that is often beset by inaction and localism. Supporters of the Congress maintain that the institution is a superior deliberative and representative institution. Which argument is

    asked by candice
  39. math

    if f(x)is greater or equal to 10x–42 but less than or equal to x2+2x–26 determine limx4f(x) = What theorem did you use to arrive at your answer?

    asked by Jin
  40. arithmetic

    In a certain arithmetic sequence, t6 + t15 = –141 and the common difference is –7. What is the first term of the sequence? explain how to do this please

    asked by bob
  41. Algebra

    Foxes and rabbits. The ratio of foxes to rabbits in the Deerfield Forest Preserve is 2 to 9. If there are 35 fewer foxes than rabbits, then how many of each are there?

    asked by Misty
  42. Algebra 1

    Randy, Sam, Tim and Will counted the number of puzzles they had solved in two months. Sam has solved twelve more than Tim. Randy had solved seventeen less than Sam.Will had solved twice as many as Randy. They have solved a total of 267 problems. How many

    asked by LD
  43. Chemistry

    If gatorade has been diluted by a factor of 25 and reads 53.5 intensity units, what is the concentration of Na+ in the original gatorade? Is there a formula/equation use to solve for this?

    asked by Anonymous
  44. political science

    My teacher post a essay question that needs to address the problem with a specific treaty or convention. But I do not understand what he means by also addressing the history, regimes, and compliance. What is he asking in relation to the treaty and essay?

    asked by jenny
  45. manageria economics

    the largo publishing house use 400 printers and 200 printers presses to produce book. a printers wage rate is 20 and the price of a printing press is 5000. the last printer added 20 books to total output. is the publishing house making the optimal in put

    asked by Razu
  46. Chemistry

    silver ions in a solution of silver salts can be recovered by immersing copper metal in the solution. crystals of pure silver are deposited on the silver metal. design an experiment to determine the number of moles of silver atoms that form describe the

    asked by stacy
  47. math

    A basketball player has made 135 free throws in 180 attempts. Of the next 50 free throws attempted, how many would she have to make to raise her percent of free throws made by 5%?

    asked by Sarah
  48. Math(Calculus)

    Ok I have a bunch of questions, please bare with me and i'd appreciate it VERY much if you could help me with these! 1. Assume that you are given the equations of three planes. Without solving the system, describe a "test" with rationale, that you could

    asked by rick
  49. chemistry

    what chemical test can be used to test for lead in water

    asked by Kelsey
  50. Physics

    Please help me solve this! The spectrum of the sodium atom is detected in the light from a distant galaxy. If the 590.0 nm line is redshifted to 658.5 nm, at what speed is the galaxy receding from the Earth?

    asked by Brian
  51. algebra

    Consider the equation 7x + 3y = 42. Part 1: On your own paper, graph this equation using the slope-intercept method. In the space provided, explain, in words, each step of the procedure you used. Make sure to use complete sentences and correct grammar. (3

    asked by Ka'Sandra
  52. Biology

    When the electron moves back to lower energy levels in an electron transport chain, energy is a) stored or b) released c)converted to matter d)used to make O2 I'm not sure how to answer this cause isn't it stored as potential energy of H20 and just before

    asked by sandy
  53. college mathematics

    Use inductive reasoning to predict the next three numbers in the sequence. 1, 0, -2, -5, -9,

    asked by Madison
  54. math

    complete the pattern 1,1,2,6,24,__

    asked by Terri
  55. physics

    A driver in a car traveling at a speed of 59 mi/h sees a deer 104 m away on the road. Calculate the minimum constant acceler- ation that is necessary for the car to stop without hitting the deer (assuming that the deer does not move in the meantime).

    asked by Dalton
  56. Algebra

    Magazine sales. Henry sold 120 magazine subscriptions in x days. a) Write a rational expression for the rate at which he sold the subscriptions. b) Suppose that he continues to sell at the same rate for 5 more days. Write a rational expression for the

    asked by Misty
  57. math-college algebra

    y-3=1/2(x-6) "finding the value of a variable" x=2 I know the answer is 1, but how do I work the problem to get 1. This problem is in our text book and in the back it states the answer is 1. I tried working the problem serval times and I do not come up

    asked by dave
  58. Algebra

    Commuting students. At a well-known university, 1/4 of the undergraduate students commute, and 1/3 of the graduate students commute. One-tenth of the undergraduate students drive more than 40 miles daily, and 1/6 of the graduate students drive more than 40

    asked by Michelle
  59. math question

    I am trying to study for a basic math entrance exam and can not recall how to work out the following question. Here it is: Three people who work full time are to work together on a project,but their total time on the project is to be equivalent to that of

    asked by Heather
  60. math

    Consider the following students method of solving the proportion 8/5 = 20/x and determine whether the methods were correct: Richie: First I divided 20 by 8 and got 2 1/2. Then I multiplied 2 1/2 by 5 and got 12 1/2 for my answer. Martha: I think of it this

    asked by Ella
  61. 6th grade English

    What would be an example of a complete sentence using the phrase "wishing for a way to make this happen"?

    asked by Brady
  62. Chemistry

    a.Why is galvanizing a more effective form of rust production then painting or oiling?

    asked by annonomus
  63. Chemistry

    design a procedue to separate a mixture that contains menthol,ethanol and 1 pentanol. explain with references to intermolecular forces why your procedure is effective for seperation this mixture

    asked by annonomus
  64. biology

    How does antibiotic resistance appear to develop within a bacterial populations? What are the health implications for human populations that increase the use of antibacterial soaps

    asked by Stacy
  65. biology

    Describe the role of microorganisms (bacteria or viruses) in: a. Genetic manipulation and medical research b. Ecosystem (such as bacteria used as decomposers. Oil spill clean up) c. Food industry (microbes which are used to make yogurt)

    asked by Stacy
  66. biology

    Propose five possible solutions that will reduce the impact of human activities on the biogeochemical cycles.

    asked by peter
  67. biology

    Research the sea lamprey, an exotic species that has had a great impact on the fish communities of the Great Lakes. a) Describe the niche of the sea lamprey. b) Find out how sea lampreys may have entered the Great Lakes ecosystem. c) Identify the

    asked by peter
  68. Physics - Modern Society

    By the mid-1800s, steam driven elevators with counterweights had been developed. However, they were not in common use until 1852, when Elisha Otis invented an elevator from falling if the cable broke. How do you think that the invention of a safe elevator

    asked by Shaila
  69. U.S government

    what is the term given to the activities of interest groups that seek to influence the making and implementation of public policy and to persuade government officials to support a group's position. A. Muckrakers B. Bribers C. Lobbyists D. Non-Governmental

    asked by jenny
  70. math

    -(8) < n

    asked by chris
  71. physics

    In a right triangle ABC, C = 90°, a = 21 ft and b = 76 ft. Solve for all the missing parts using the given information. (Round each answer to the nearest whole number.)

    asked by erin
  72. trigonometry

    (3^m)(5^(m+1))=12^(2m-1) not sure how to solve this but I think you use natural logs? I'm just stuck because the first two are multiplying and not adding and we didn't go over this

    asked by Teddy
  73. physics

    a) Does ball B roll faster along the lower part or track a than ball A rolls along track A? (b) Is the speed gained by ball B going down the extra dip the same as the speed it loses going up near ... (c) On track B, won't the average speed dipping down and

    asked by Anonymous
  74. college mathematics

    how do I set up an equation for this? Lisa has $215 saved. She plans to save $125 every month so that she can have enough money to buy a new sofa. The sofa costs $1498, including tax. How many months will she need to save to be able to buy the sofa?

    asked by Madison
  75. FRACTION MATH

    3 1/3 - 2 2/5 + ?

    asked by TANYA
  76. Psychology

    The following table describes five situations in which a person reacts to stress in an unhealthy manner. For each: a. identify the stressor(s). b. briefly explain why the person's reaction is an unhealthy choice. c. briefly describe one healthy alternative

    asked by Alicia
  77. algebra 2

    log(base 2)csc(x) = log(base 4)csc(4x^2) I tried doing the log(base a)b = logb/loga but I can't get past that because I'm not sure what to do after that. How do I set it up so I get like cscx=? or something so I'm able to solve for multiple values of x?

    asked by Teddy
  78. math

    if f(x)is greater or equal to 10x–42 but less than or equal to x2+2x–26 determine limx4f(x) = What theorem did you use to arrive at your answer?

    asked by Jin
  79. Chemistry

    1. Take a clean test tube from the Glassware shelf and place it on the workbench. Add 1 mL your mystery solution to the test tube. 2. PRECIPITATION BY NaC2H3O2(aq) (a) Add 2 mL of sodium acetate solution to the test tube. (b) If a white precipitate forms

    asked by annonomus
  80. Chemistry

    silver ions in a solution of silver salts can be recovered by immersing copper metal in the solution. crystals of pure silver are deposited on the silver metal. design an experiment to determine the number of moles of silver atoms that form describe the

    asked by annonomus
  81. Chemistry

    silver ions in a solution of silver salts can be recovered by immersing copper metal in the solution. crystals of pure silver are deposited on the silver metal. design an experiment to determine the number of moles of silver atoms that form describe the

    asked by stacy
  82. math

    The list price of a car is $17,500. By purchasing a combination of luxury items, the cost can increase by as much as 25%. How much could the car cost with all the extras?

    asked by Sarah
  83. biology

    There is a bacteria called botulism which will grow in anaerobic conditions. This bacteria can be found in improperly canned food, as a result a toxin is produced which can be deadly to humans. What does this bacteria have to do with BOTOX?

    asked by peter
  84. calculus

    Determine whether the graph of the equation is symmetric with respect to the x-axis, y-axis, line y=x, line y=-x, or none of these. x+y=6 Do I have to move the y and 6 to the other side of the equations or does it not matter? Also, if I do, when I test

    asked by James
  85. 8th grade

    5x=125 to the 6th power over 25 to the 4th power

    asked by Anonymous
  86. Physics

    At what rate would a 75kg person travel during a slip/fall on a wet surface to the landing position.

    asked by Mary Jo
  87. geometry

    How many different triangles can be constructed with toothpicks by conncting the toothpicks only at their ends if each triangle can contain at most five toothpicks per side? I know the answer is 22 but I have no idea how they came up with this answer. Any

    asked by anonymous
  88. English

    Anne wrote there is nothing we can do but wait as calmly as we can til the misery comes to an end....How does this statment help to place readers in the historical context?

    asked by Jackie
  89. U.S government

    A colony of a country that followed mercantilism during the 17th century would NOT be encouraged to develop __________. A. Farming B. Fishing C. Slavery D. Its own government i think c but idk

    asked by jenny
  90. Math

    The area of a triangle is 75 sq in. Calculate the possible angles formed by the triangle's 12-inch and 15-inch side.

    asked by jess
  91. Biology/English

    I read The Andromeda Strain and I have to make an outline of the scientific method using Examples from the book. This is what I have so far: ASK- "What killed all the people in Piedmont"? RESEARCH- When they released the germ into the cage with the mouse

    asked by Anonymous
  92. math

    What are the next two terms of the sequence: M, V, E, M, J

    asked by Katie Jane
  93. Business Law

    What are risks organizations encounter when dealing with traditional litigation? Whatmeasures might managers take to reduce exposure to those risks?

    asked by Brandon jones
  94. math

    Yi Chen made a $6,400 investment at the beginning of a year. By the end of the year, the value of the investment had decreased by 8.2%. What was its value at the end of the year?

    asked by Anonymous
  95. algebra1

    how do you simply this? square root of 1500/20 (the / means over) please show steps. thanks!

    asked by Emily
  96. math

    Sealing a Gym Floor A gymnasium floor has an area of 2400 square yards. Each gallon of floor sealant covers an area of 350 square feet. How many gallons of sealant are needed to cover the gymnasium floor? should the equation be set as 2400 sq. yards = 7200

    asked by Madison
  97. Organizational Behaviour

    im doing a 5 page essay and MARS model is one of them but i need help writing an example for Situtaional Factors for the technicians. thnx =)

    asked by Thara
  98. physics

    A one tonne moon obiter is to approach the moon and orbit through 270 degrees at an altitude of 100km. During this period its rockets are to be turned off. What is the required velocity of the obiter at the entry point to prevent the vehicle from crashing

    asked by sandhya
  99. algebra

    a triangle with a 18"base.What is the maximum length to use 180in squared?

    asked by pat
  100. math

    32 is 40% of what number?

    asked by ANNE
  101. college

    (x+3)squared-(y+2)squared

    asked by Anonymous
  102. math

    Sybil is planning a trip to Paris. She estimates that 1 euro is worth about 1.2 U.S. dollars. Her budget for the trip allows $150 per night for a hotel room. What is the maximum number of euros she should pay for a room?

    asked by Sarah
  103. logarithms

    Ive been staring at this problem for like a half hour now and I cant figure out where to even begin... log(base x)4 + log(base 8)squareroot(x) = 4/3 solve for x any help appreciated

    asked by jonathan
  104. Physics

    Two objects are moving in different direction. Under what circumstances can you treat this as one-dimensional problem?

    asked by Shaila
  105. Algebra

    I have this math probelm z-(3z)/(2-z)=(6)/(z-2) in my book it says to solve the equation. I have worked this problem many times and I keep comming up with different answers. When I use an online calculator to check my work it is giving me an answer of z=-3

    asked by Jessica
  106. Cis/105

    Besides budgeting - What are some uses for MS Excel we did not cover in class? Can you think of any other way you could use this application? Explain.

    asked by Tonya
  107. chemistry

    a contaminated water sample has a H of 3. How many times more acidic is this sample compared to neutral water of 7

    asked by Kelsey
  108. Algebra

    Magazine sales. Henry sold 120 magazine subscriptions in x days. a) Write a rational expression for the rate at which he sold the subscriptions. b) Suppose that he continues to sell at the same rate for 5 more days. Write a rational expression for the

    asked by Jessica
  109. biology

    Need picture of human body with different types muscles for grade 3 child

    asked by sihle makubalo