Questions Asked on
August 15, 2010

  1. Physics

    You are trying to overhear a juicy conversation, but from your distance of 15.0m, it sounds like only an average whisper of 25.0 dB. So you decide to move closer to give the conversation a sound level of 70.0 dB instead.How close should you come.

    asked by Veronica
  2. Math

    A pair of fair dice is rolled. Let E denote the event that the number landing uppermost on the first die is a 3, and let F denote the event that the sum of the numbers landing uppermost is 6. Determine whether E and F are independent events

    asked by Jack
  3. Physics

    I need help solving this please! I think that for part (b) I can use energy and wavelength to solve for frequency and the one with the highest frequency is the most damaging, but I'm not sure what to do for part (a). You want to study a biological specimen

    asked by Brianna
  4. math

    Four blue socks, four white socks, and four gray socks are mixed in a drawer. You pull out two socks, one at a time, without looking. a. Draw a tree diagram along with the possible outcomes and the probabilities of each branch. b. What is the probability

    asked by kirk
  5. chemistry

    Assume that gaseous hydrogen iodide is synthesized from hydrogen gas and iodide vapor at 50 degrees celcius where the equilibrium constant is 1.00 x 10^2. Suppose HI at 5.00 10^-1 M, H2 at 1.00 x 10^-2 M, and I2 at 5.00 x 10^-3 M are mixed in a 5.0 L

    asked by Anonymous
  6. Physics

    You drop a ball from a height of 2.0 m and it bounces back to a height of 1.5 m (a) What fraction of its initial energy is lost during the bounce? (b) What is the ball’s speed just at it leaves the ground after the bounce?

    asked by Sasha
  7. math

    Find the ratios in which the spheres x^2+y^2+z^2=24 divides the line joining the points (-1,1,2) and (-4,4,8)

    asked by pankajv
  8. chemistry

    When 10.0 mL of 0.012 M pb(NO3)2 is mixed with 10.0 mL of 0.030 M KI, a yellow precipitate of PbI2(s) forms. a)Calculate the molarity of [Pb^2+] b)Calculate the initial molarity of [I^-] c)On measuring the equilibrium concentrations of [I^-] it came out to

    asked by Anonymous
  9. finance

    Consider the following data for a one-factor economy. All portfolios are well diversi ed. Table 1: One-factor Economy Portfolio E(r) Beta A 10% 1.0 F 4 0 Suppose another portfolio E is well diversi ed with a beta of 2/3 and expected return of 9%. Would an

    asked by Anonymous
  10. PreCal

    Janine, a science student, measured the volume of carbon dioxide gas that can be absorbed by one cubic centimeter of charcoal at pressure x. She made the following four sets of measurements: (120, 3.1) (340, 5.5) (534, 7.1) (698, 8.3) Janine finds that the

    asked by Anonymous
  11. chemistry

    If the molar solubility of lead iodide is 2.4 x 10^-3M. Calculate the Ksp.

    asked by Anonymous
  12. physics

    A train passing at point A at a speed of 72 kph accelerates at .75 m/s2 for one minute along a straight path then decelerated at 1.0 m/s2. How far in km from point A will it be 2 minutes after passing point A?

    asked by nonoy
  13. Trigonometry

    At the ocean, it is known that the tide follows a trigonometric path. At high tide, the water comes in to a point 1 meter from where I placed a flag. At low tide, the water comes in to a point 11 meters from the same flag. The time it takes from to get

    asked by Fred
  14. business law

    Lorraine Haley, Tandy Hager, and Dean Madison decide to incorporate their detective agency, but fail to follow proper procedure. They sell stock to Darrell Lovett and persuade him to become a corporate officer. Lovett purchases a computer for the firm.

    asked by Sarah
  15. physics

    A ball with a mass of .2 kg travelling at a speed of 26 m/s is struck by a bat. If the duration of the impulse is .001 seconds and the speed of the ball afterwards is the same as before, what is the average force (to the nearest Newton) of the impact?

    asked by Skyler
  16. College Algebra

    A manufacturer determines that the profit in dollars for manufacturing n units is P=2n^2-60x-400. (Assume that n is a positive integer) How many units are produced when the profit is $400?

    asked by Gallaudet
  17. physics

    A 8.5 kg steel ball, travelling left to right at 12 m/s, undergoes an elastic collision with a 5 kg steel ball at rest. To the nearest Joule, what is the Total Kinetic Energy of the two balls after collision? ------- If the first ball in the question above

    asked by Skyler
  18. Math

    Explain why the statement is incorrect: The probability that a bus will arrive late at the Civic Center is 0.35 and the probability that it will be on time ore early is 0.60

    asked by Stephanie
  19. math

    Given these sets: A = {1, 2, 3, 4} B = {3, 4, 5, 6, 7} C = {3, 5, 7, 9} List the elements of this set C ¿ (A u B) Do I list the numbers in C that is not in A and B?

    asked by Madison
  20. MicroEconomics!!!

    Can you help me with these 16 Questions? I have shown my answers that i thought were correct for all but 2 of them. Do you mind letting me know what you think. Thank you so much. Anything will help!! I have placed an *****. By the ones i think are right!

    asked by Danielle
  21. chemistry

    The reaction of the ferric ions with isocyanate ions is an exothermic reaction. In what direction would you expect the equilibrium to move if the solution temperature is raised? Would the color of the reaction intensify? Explain. What would happen if you

    asked by Anonymous
  22. managerial economics

    An article in BusinessWeek warned of the dangers of deflation as the collapse of numerous Asian economies was creating worries that Asia might try to "export its way out of trouble" by oversupplying everything from automobiles to semiconductors. Evidence

    asked by tina
  23. chemistry

    hi Dr Bob..can you please help me with this chemistry problem? I got problem dealing with the chemical formula.How i want to find the number of moles of 2g of Fe(NH4)2(SO4)2.6H2O???please help me.Thank you

    asked by tarra
  24. chemical equilibrium

    if the pressure of n2/h2 in aclosed apparatus is 100 atm and 20 percent of the mixture then react ,the pressure at the same temperature would be

    asked by bharat
  25. chemistry

    how many moles of LiF would be required to produce a 2.5 M solution with volume of 1.5 M?

    asked by kirari
  26. calculus

    lim tan x - x/ x -> 0 x^2

    asked by Lereesa
  27. Physics

    A pendulum has a mass of 3-kg, a length of 3 meters and swings through a (half)arc of .47 radians. To the tenth of a Joule, what is its Total Energy?

    asked by Skyler
  28. physics

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +18.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -6.30 m/s^2. How fast is the racer moving 2.70 x 10^2 m after the parachute opens?

    asked by Anonymous
  29. economics

    Suppose George is making $18 an hour installing electronic chips in hand held computers. Would your offer to work for $8 an hour get you the job? Why might a profit-maximizing employer turn down your offer?

    asked by Glo
  30. Earth

    Has the issue of global warming been solved already? I mean, the Kyoto accord will expire in 2012. And are the glaciers of the North & South Pole melting even more?

    asked by AL 92
  31. physics

    A pendulum has a mass of 3-kg, a length of 2 meters and swings through a (half)arc of 27.3 degrees. What is its Amplitude to the nearest centimeter ?

    asked by Skyler
  32. Business Communications

    When you are writing subject lines for negative messages to peers and subordinates: A. put the topic, but not your action on it, in the subject line. B. put the topic, including your action on it, in the subject line. C. do not include the topic in the

    asked by Rain Misoa
  33. Math

    From a window in room 7, one can observe the front door of Phillips Hall, which is about 45 yards away. A turn of the head trough an angle of 63 degrees in a counterclockwise direction enables one to see the front door to Jeremiah Smith Hall which is about

    asked by Kyle
  34. Algebra

    Two cyclists leave towns 240km apart at the same time and travel toward each other. One cyclist travels 10km/h slower than the other. If they meet in 5 hours, what is the rate of each cyclisst?

    asked by Ian
  35. medical

    when must a notice of use and disclosure be provided

    asked by ky
  36. physics

    A pendulum has a mass of 3-kg, a length of 1.3 meter, and swings through a (half) arc of 30 degrees. To the tenth of a Joule, what is its maximum Kinetic Energy?

    asked by Skyler
  37. english

    how do you make a timeline for a sixth grade reading assignment

    asked by Ao
  38. English II

    Explain how The Federalist Papers would have been more or less successful if newspapers had been printed monthly (rather than daily or weekly

    asked by Betty
  39. statistics

    A researcher conducts a t test for dependent means in which it is predicted that there will be a decrease in unemployment from before to after a particular job-skills training program. The cutoff "t" needed is -1.8333. The standard deviation of the

    asked by Anonymous
  40. math 116

    In 1991, the life expectancy of males in a certain country was 72.8 years. In 1995, it was 75.9 years. Let E represent the life expectancy in year T and let T represent the number of years since 1991. The linear function E(t) that fit the data is

    asked by Tanya
  41. Geometry

    Four identical metal spheres, each with radius 6 cm, are melted and reshaped into one big sphere. Fine the radius of the new sphere.

    asked by Kyle
  42. college

    I need help writing an outline for a persauasive essay?

    asked by Christine
  43. algebra 2

    I'm stuck on this one: factoring polynomials from algebraic expressions (and it says you can use the substitution method): 3m^2(2p^2+3)over (x^2+y)(2x-y^2) minus 6m(2p^2+3)over (y^2-x)(2x-y^2)= Do I find the GCF? I get 3m(m-2) over (x^2+y)(2x-y)(y^2-x)

    asked by dan
  44. ETH125

    Consider the differences between arabs, muslims, and arab muslim extremist and fundamentalist. What may be done to maintain the american guarantees of religious freedom and increase knowledge about muslims and arabs?

    asked by cynthia
  45. business

    MGT635-1003B-04 International Business Operations Management Assignment Name: Unit 5 Individual Project Deliverable Length: 6-7 body pages Details: As the production manager for an electronic circuit company you have encountered the following situation.

    asked by 1SGCalhoun
  46. microeconomics

    Suppose that in 2008, you became president of a small nonprofit theater company. Your playhouse has 120 seats and a small stage. The actors have national reputations, and demand for tickets is enormous relative to the number of seats available; every

    asked by mimi
  47. managerial economics

    An airline transportation consultant offers the CEO of BlueStar, a struggling new commercial airline company, the following advice conscerning the airline's high operation costs in the current quarter: "You don't have enough aircraft to operate

    asked by tina
  48. managerial economics

    An airline transportation consultant offers the CEO of BlueStar, a struggling new commercial airline company, the following advice concerning the airline's high operating costs in the current quarter: "You don't have enough aircraft to operate efficiently.

    asked by tina
  49. Psych

    I am writing a power point on 5 components of wise judgements. Below is my subject which I have to develop the 5 components of wise judgement. I am totally clueless, the material given in school does not specify those components. A teenage girl is “in

    asked by Lona
  50. math 116

    solve by the elimination method. 7r-3s=53 3r+7s=31 What is the solution of the system?

    asked by Tanya
  51. Statistics

    I don't know where to start with this in Excel. Player Rating TD% Inter% Steve Young 96.8 5.6 2.6 Kurt Warner 95.7 5.5 3.5 Daunte Culpepper 93.2 5.4 3.1 Peyton Manning 92.3 5.6 3.1 Joe Montana 92.3 5.1 2.6 Trent Green 87.9 4.7 2.9 Tom Brady 87.5 4.8 2.6

    asked by Jennifer
  52. physics

    When a capacitor are plugged into the battery, what happens to the Q(charge), potential difference, and C. It would have the same effect if two capacitors connected in parallel plugged into the battery

    asked by blast
  53. Business Communications

    Is the subject line "Improving Customer Service" appropriate in a message to superiors? A. Yes, because it focuses on solving the problem. B. No, because the word "service" makes the subject line seem negative. C. No, because the boss is likely to think

    asked by Rain Misoa
  54. Chemistry

    Suppose you are given a sample of a homogeneous liquid. What would you do to determine whether it is a solution or a pure substance?

    asked by Shannon
  55. math

    24 tacks are used to fix the 3ply to the back of the unit these cost $12 per 1000 cost of the thacks (rounded th the nearest 5 cents)

    asked by catherine
  56. maths

    find the price you will be paying for each item kite:$20 tax:7% books:$18.5 tax:9% laptop: $1,200 discount:20% cellular:$230 discount:35% sunglasses:$120 discount:40%

    asked by rula farkash
  57. Calculus

    A 5m long ladder rests on a vertical wall. if the bottom of the ladder slides away from the wall at 1m/s, how fast is the angle between the lader and the ground changing when the bottom of the ladder is 3m from the wall?

    asked by Lereesa
  58. Albegra

    I need to know if my answer is correct for the following two problems. 3 squared 189 divided by 3 squared 7 = 27 problem #2... 9 3 squared 3 - 2 3squared 3 = 5 Please let me know if these are correct. thanks for all your help.

    asked by Ava
  59. calulus

    lim tanx - x x->0 x^2

    asked by Lereesa
  60. Albegra

    I need to know if my answer is correct for the following two problems. 3 squared 189 divided by 3 squared 7 = 27 problem #2... 9 3 squared 3 - 2 3squared 3 = 5 Please let me know if these are correct. thanks for all your help.

    asked by Ava
  61. Albegra

    I need to know if my answer is correct for the following two problems. 3 squared 189 divided by 3 squared 7 = 27 problem #2... 9 3 squared 3 - 2 3squared 3 = 5 Please let me know if these are correct. thanks for all your help.

    asked by Ava
  62. pharmacy

    how much interest will mary owe if she borrows $2000 at a rate of 6% for 2 years?

    asked by Mely
  63. adv.alg/trig

    Square root of 300

    asked by lola
  64. Math

    A cubic model of the yearly worldwide carbon emissions is W=-0.051x3 + 2.93x2 + 74.6x + 1589 where W is the weight of the emissions in millions of tons and x is the number of years since 1950. Use synthetic division to evaluate the model for the year 1960.

    asked by Jessica
  65. managerial economics

    Should a manager hire a new person if they are going to cause a diminishing returns?

    asked by tina
  66. statistics

    A researcher conducts a t test for dependent means in which it is predicted that there will be a decrease in unemployment from before to after a particular job-skills training program. The cutoff "t" needed is -1.8333. The standard deviation of the

    asked by Anonymous
  67. Algebra

    use the laws of exponents to simplify 3 3/4 * 3 1/8 Please help!!

    asked by Vivabee
  68. Radical exponents

    Use rational exponents to write 4suare root 5 * 2 sqaure root 8 Please help.. I can't find the square root button

    asked by Ava
  69. Earth

    So how long will global warming last for in the future? Remember the movie, "The Day After Tomorrow"? The whole world might experience all those disasters depicted in the movie.

    asked by AL 92
  70. Business Communications

    Which alternative indicates the message(s), if any, which can spend considerable time discussing negative aspects of a situation? A. Direct requests B. Persuasive problem-solving messages C. Sales messages D. Clearance messages This one gave me a bit more

    asked by Rain Misoa
  71. Anatomy & Physiology

    Trace the impulse, listing the steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to lift a glass of water to drink.

    asked by Anonymous
  72. Exponents

    I need to know if i answered this right. Use the laws of exponents to simplify. 3^3/4 * 3^1/8= 81/32

    asked by Ava
  73. accounting

    I have need to descirbe two business factors that I might wnat to work for. I am lost can someone give me an example of what this is asking for???

    asked by Tracie
  74. Cultural Diversity

    What does "glass ceiling, glass walls, or glass escalator mean"?

    asked by michelle
  75. math 117

    can someone help me with this radical numbers problem? (2suare root 8)(2-square root 8) would it be 2 square root 4?

    asked by Johny
  76. jjjj

    When does the Narrative of Sojourner Truth take place?

    asked by ujj
  77. Math

    Add: 5 squared(4 squared 2 - 6 squared 25)= thanks

    asked by Amber
  78. Cultural Diversity

    Through out history have the Colonized English been effected by any of the following forms of discrimination, or did they participate in any of the following forms of discrimination? Dual labor market, environmental justice issues, affirmative action,

    asked by michelle
  79. week 7

    Your company has had a very profitable year and is looking to expand their employee benefits. As an employee in the benefits department, you have been asked to prepare a report to persuade your company administrators that adding tuition reimbursement for

    asked by Anonymous
  80. XCOM/285

    Your company has had a very profitable year and is looking to expand their employee benefits. As an employee in the benefits department, you have been asked to prepare a report to persuade your company administrators that adding tuition reimbursement for

    asked by Anonymous
  81. calculus

    lim x-> 0 if tan x - x / x^2

    asked by Lereesa
  82. geology - thank you

    Thank you so much Ms. Sue and merci beaucoup SraJMcGin. I have found the term I was searching for; it is BAJADA.

    asked by E.G.
  83. Science

    Why does the water of lakes and oceans look alike?

    asked by Abby
  84. Essentials of Managerial Communication

    Discuss how technology could be used to facilitate cross-cultural communication.

    asked by Nancy
  85. space

    what are the international aspects of the international space station

    asked by glen
  86. childcare

    i am posting a question and an answer please help? neuron development and elaboration, a. aural prompts from the family, school, and environment b. physical movement on the part of the child c. intake of foods rich in vitamins and minerals d. exposur to

    asked by action
  87. childcare

    Repeating Ms.Sue. Thanks for your keen observation. Beuron development and elaboration, which occurs between birth and age 10, is prompted by: A. aural promts from the family, school and environment B. Physical moement on the part of the child C. Intake of

    asked by action
  88. childcare

    Writeacher: The correct word is Neuron not Beuron. My apologies.

    asked by action
  89. math

    On a roulette wheel, the probability of winning when you pick a particular number is . Suppose you bet $1.00 to play the game, and if your number is picked, you get back $36. a. Is this a fair game? b. What would happen if you played this game a large

    asked by Amy
  90. Calculus

    If P'(t)= [10(t+2)]/t. What is P(t)? It is asking for the derivative, and I am so lost! Because so far we haven't covered how to find the derivative of something so complicated. Any ideas? TY

    asked by Jaimie
  91. poem

    I am looking for this quote I cannot remember it Go placidly amongst the midst and haste

    asked by action
  92. Algebra

    I'm stuck on this probelem with radicals.. can someone help me? (Radical 7 +1)(3radical 7 +1)

    asked by Daisy
  93. Business Communications

    As a professor at State University, you have been asked to write a letter of recommendation for one of your advisees who is applying for an internship. The student is now a senior and you have known her since she was a freshman. She has taken two courses

    asked by Rain Misoa
  94. US History II

    Popular Sovereignty was related to Lincoln because he didn't like the idea of half free and slave states? Just making sure.

    asked by Amy~
  95. health

    which of the following is a suitable toy for a toddler

    asked by Li
  96. accounting-explain

    April.4 purhcase merchandise from RediX, Inc.,$1900;term 2/10, n/60,FOB shipping point, frieght of $85 added to the invoice. April 10 returned $850 of merchandise to Redix.Inc. perpetual invetory: April 4 (Debit) Inventory $1985 (Credit) Accounts Payable

    asked by Thara
  97. maths

    find the price you will paying for each item a. jacket: $125 tax:5.5%

    asked by rula farkash
  98. stoichemistry

    4Fe+3o2 =

    asked by tom
  99. US History II

    Which one would be right: America's independence from England or Britain?

    asked by Amy~
  100. pharmacy

    A CERTAIN MIXTURE CALLS FOR 6MG OF AMOXYCILLIN TO 15 LITERS OF WATER.? HOW MANY LITERS OF WATER WOULD YOU NEED FOR 12MG OF AMOXYCILLIN?

    asked by Mely
  101. Critical thinking

    What are the strengths and weaknesses of reversible decision-making?

    asked by One tired mom
  102. Managerial Economics

    Skateoards sell for $70. During the past year they sold 4,000 skateboards. The company beleives that the price elasticity for product is -2.5. If it decreases the price to $63, what would be the quantity sold?

    asked by Janet
  103. Calculus

    Find f(x)' of f(x)=x^x^x I logged both sides to get ln y = x^x ln x But I am not sure what step to do after that.

    asked by Jaimie
  104. Algabra

    Train A travels at 100 mph in the same direction. Train B travels at120 mph on a parallel track. Train A passes a station at 8:25 pm, Train B passes the same station at 8:37 pm. What time will Train B catch Train A?

    asked by Kelly
  105. geology

    I know that a peneplain is a flat area due to erosion, but what is the term for a flat area due to deposition? I am generally very successful with searching the internet, but I could not find the term I am looking for. Could you please help? Thank you!

    asked by E.G.
  106. Litature

    What is Utnapishtim statement on life

    asked by Mary
  107. chemistry

    which one of the follwoing will result in a chemical change ?

    asked by Anonymous
  108. physics

    Science isn’t about proving anything

    asked by Anonymous
  109. managerial economics

    Should a manager hire a new person if they are going to cause a diminishing returns?

    asked by tina
  110. physics

    When you make a turn, in what direction does your body (and all loose items in the car) want to go? In what direction are you actually pushed? Why?

    asked by Anonymous
  111. COMM

    is paying a form of present progressive when it comes to verb tense?

    asked by Maryann