1. internet basics

    the social networking site that caters to artists and musicians is which of the following a,twitter b.facebook c.my space my answer is c
  2. science

    earth appears to be mostly blue when viewed from space because it is mostly covered by ? a) water b) oxygen c) carbon dioxide d) ozone
  3. Exploring Space

    Why do astronauts appear to float when they aboard the ISS station and experience 90% of earth's gravitational pull? Is it because of the freefall?
  4. chemistry - Bonding

    #1) Draw the following ions using a Bohr diagram: b)oxygen: i got [oxygen:2)8)]-2 (the -2 is an exponent) but the answer said [oxygen: 2)8)8)]-2...is this right? d)fluorine: i got [fluorine:2)8)]-1 and the book says [fluorine: 2)8)8)]-1..again, is the book
  5. business operations

    Create process flow diagrams that illustrate the use of each of the following strategies: Make-to-stock strategy Assemble-to-order strategy Make-to-order strategy Describe how the Internet-based electronic data interchange (EDI) would be useful. Prepare a
  6. Chemistry

    biochemists consider the citric acid cycle to be the central reaction sequence in metabolism. One of the key steps is an oxidation catalyzed by the enzyme isocitrate dehydrogenase and the oxidizing agent NAD+. Under certain conditions, the reaction in
  7. Math

    In an experiment, a pair of dice is rolled and the total number of points observed. (a) List the elements of the sample space (b) If A = { 2, 3, 4, 7, 8, 9, 10} and B = {4, 5, 6, 7, 8} list the outcomes which comprise each of the following events and also
  8. Math

    Rank the following from greatest to least. 297.086, 297.8, 297.062 Is this correct 297.062, 297.086, 297.8
  9. Stat's

    Choose the probability as a fraction in lowest terms a.5/164490480 b.5/1370754 c.1/1370754 d.1/164490480 determine probability of winning a lottery from which 5 numbers are drawn without replacement from the set of numbers 1 to 46. in order to win, the 5
  10. alphabetical order

    actually- brother with an "'s" is the possesive form of the word brother. so it's actually brother('s) than brothers i thought that was it 'cause that's how the computer alphabetizes things, but i needed to make sure which word comes first in proper
  11. Health Physics

    As a result of doing work, a person supplies a machine with 1100 J of energy in 12 seconds. The machine in turn does work and delivers 900 J of energy in 14 seconds to some object. What is the efficiency of this machine?
  12. Calculus

    A water tank is made by rotating f(x)=2^x-1 between [0,2] about the y-axis. The water tank is initially full, when a hole is opened at the bottom tip so that the water drains at a rate of 4 unit^3/second. How fast is the height of the water decreasing when
  13. English

    Hello. Please check the structures: He and his wife didn't have bank accounts. He or his wife didn't have... Both he and his wife didn't have... Neither he nor his wife had ... THANK YOU FOR HELP.
  14. Science help ms sue.

    Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements
  15. Science

    Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements
  16. statistics

    sat scores around the nation tend to have a mean score of about 500, a standard deviation of 100 points and are approximately normal distribution. a person who score 600 on the sat has approximately what percentile rank within the population? show all

    In each cycle of its operation, a heat engine expels 6,100 J of energy and performs 1,300 J of mechanical work. (a) How much thermal energy must be added to the engine in each cycle?_____J (b) Find the thermal efficiency of the engine.____%
  18. Dr Bob 222

    You answered a earlier post on a question for someone with the same question I am trying to answer. The hydrolysis of tocainide you stated only the NH2 group hydrolyses NH2 + HOH -> NH3^+ OH^- I understand that part but I need to understand why the
  19. Technology for Biobased Products

    QA.A bio-PDO production process will also produce microbial biomass. A huge surplus biomass of roughly 10% of the PDO mass should be expected. A good use of this microbial biomass could be food of feed. Which organism properties disqualify their use in
  20. 7th grade math

    Crystal made a bag of trail mix peanuts, raisins, and chocloate chips in the ratio of peanuts:raisins:chocolate chips = 5:3:2. There are 150 raisins in the trail mix. How many peanuts and chocolate chips are in the trail mix?
  21. Accounting

    When finding the break even point, I know that total fixed costs/contribution margin= Break Even Point, but is that answer in dollars? How do you find the sales volume (dollars) that need to be produced in order to break even? How do you find the required
  22. chem

    What mass of ice at 0°C can be melted by the addition of 1670 joules of heat? When the temperature is decreased on the following system at equilibrium: 2 HCl(aq) + Mg(s) <--> MgCl2(aq) + H2(g) + heat a. In order to restore equilibrium, the reaction
  23. physics/order of magnitude

    ast year mc donald sold 5*10^9 packet of french fries. if we put french friesbend to end estimate the total distance? calculate the order of magnitude?compare the distance? 20 french fries per packet. the length 2cm to m i need to see details in
  24. chemistry

    Higher melting point between X-COOH and X-OH, which is higher? Both have hydrogen bonding, but not really sure. Does it deal with resonance structure of the conjugate base?
  25. ela

    I have to write a sentence with a polysyndenton sentence structure; is this an example of one? ex: I was stressed because the teacher inundated me with many projects and homework and classwork and materials
  26. business

    What cues might a manager have that suggest there is a problem with the design of an organization? Is changing an existing organization a different task from designing a new structure?
  27. organic chemistry

    An ether and an alkene are formed as by-products in this reaction. Draw the structure of these by-products and give mechanism for their formation.
  28. biology

    A plant is placed in bright sunlight. After a few hours, one of its leaves is stained with iodine solution. Which structure will be stained blue/black?
  29. Bio Medical Science

    What are the differences and similarities of the social structure and family values of persons from Bosnia and persons from Poland?
  30. Chemistry (lewis structure/bond)

    Example: Sulfur Trioxide Chemical formula: SO3 Valence e-: ? Needed e-: ? Difference/Bond: ?? Please help me!
  31. Local government

    How to write an informational paragraph on structure of our local goverment ( I live in miss ) & shiw what strategy I used b4 writing
  32. science

    Analysis of forelimb anatomy of humans, bats, and whales shows that humans and bats have fairly similar skeletal structures, while whales have diverged considerably in the shapes and proportions of their bones. However, analysis of several genes in these
  33. science

    Arrange the amount of momentum of these objects from the most momentum to the least momentum. When placing the objects in the correct order, record the value of their momentum. 1. A 0.4 kg baseball thrown by a major league pitcher at 120 m/s. 48kg*m/s 2. A
  34. linguistics

    what is a firthian linguistics?...its full structure and history...
  35. Social

    Change in social structure during the industrial revolution.
  36. biology- DNA

    Explain the function and structure of DNA.
  37. science

    What is the meaning of cell structure because i can't find the meaning anywhere.
  38. Chemistry

    Given a C=O double bond, how do you determine the length of the bond in different molecules using resonance structures? I know single bonds are longer than double bonds...but how do you distinguish between lengths of the same double bond in different
  39. home insurance

    the type of life insurance often used as mortagage insurance is: A.decreasing term B.universal life C.whole life D.homeowners insurance i got B
  40. Chem.

    Convert 512 ft to km. Anyone know how to do this, please? There are 3281 feet/km. In order to get it in km, you have to divide... 512/3281 = Thank you! yo this is fo reak dawg 512ft(1km/3218ft) ft cancel eachother out n u are left with km .15605km
  41. Physics

    As a result of doing work, a person supplies a machine with 1100 J of energy in 12 seconds. The machine in turn does work and delivers 900 J of energy in 14 seconds to some object. What is the efficiency of this machine?
  42. History (chronological order)

    Place in chronological order from the earliest to most recent.. height of egyptian power height of Athenian power height of Alexander's empire height of Roman empire
  43. chem

    A certain first-order reaction has a rate constant of 2.75 10-2 s−1 at 20.°C. What is the value of k at 50.°C if Ea = 75.5 kJ/mol? i know to use the ln(k1/k2)= (ea/R)((1/T1)-(1/T2)) but how do i know what T2 is when i only have one temp? there is a
  44. Business management quest

    A college professor told her students, “The purpose of a management course is to teach students about management, not to teach them to be managers.” Do you agree or disagree with this statement? Why or Why not? Also, is efficiency and effectiveness
  45. financial management

    Post your response to these questions: A budget systems model is the foundation from which budgeting systems can be used to evaluate the success of an agency or company. How are performance budgeting systems used to evaluate the efficiency and
  46. ped212

    Discuss the differences between process and product evaluation. Give examples of each type of evaluation. Discuss the value of each type of evaluation. What is the significance of focusing on the process in physical education? How does this information
  47. phys

    A town is planning on using the water flowing through a river at a rate of 4.9 106 kg/s to carry away the heat from a new power plant. Environmental studies indicate that the temperature of the river should only increase by 0.50° C. The maximum design
  48. physics question

    a forklift lifts a 100 kg of concrete through a vertical height of 16 m in 20 sec.the power applied to the motor un driving the forklift is 1kw.a) calculate the work done every second in lifting the concrete block.b) what is the power output of the
  49. math

    on a game board, landing on blue means to move ahead 1 space , landing on red means to move ahead 2 spaces, and landing on orange means to move back 1 space. if you took 30 spins about where would you expect to be on the game board, relative to where you
  50. Algebra

    Jason and Mary have a new baby. They want to invest $20,000 at the baby’s birth in order to have $100,000 for the baby’s college education. What interest rate do they need to earn in order to achieve this in 18 years? Use the following formula to
  51. Chemistry

    The rate law of a reaction, A-> B+C is given by the expression: Rate=k, where k=0.0113 mol/L min. If the initial concentration of the reactant is 0.225 mol/L, how long does it take for the concentration to decrease to 0.180 mol/L? I know i have to find
  52. English

    I got the question on corruption in the play hamlet for homework. I wonder should I focus on the Danish court in general (for example the way Hamlet refers to the world around him as 'an unweeded garden' or containing 'things rank and gross in nature', the
  53. Accounting

    On January 1, 2009, Sweetwater Furniture Company leased office space under a 21-year operating lease agreement. The contract calls for annual rent payments on December 31 of each year. The payments are $11,000 the first year and increase by $600 per year.
  54. chemistry

    The molar volume of a certain form of solid lead is 18cm3/mol. Assuming cubic closest packed structure, determine the number of Pb atoms per unit cell.
  55. Business

    In an industry with a relatively unattractive structure, is it advisable to pursue a me-too strategy? Could Trader Joe’s have succeeded by simply offering a slight variation on the traditional grocery store model?
  56. sociology

    how can structure-agency debate help us to understand better the challenges faced by MaMarrandi? based on Steinberg's (2008) The Three Letter Plague (page 134-145, 184-193)
  57. biology

    The structure of chromosomes is best explained as DNA broken apart into separate genes. extended to form very long, thin molecules. wrapped tightly around associated proteins. coiled up into a ball.
  58. Chemistry

    Palladium crystallizes with a face-centered cubic structure. It has a density of 12.0 g/cm^3, a radius of 138 pm, and a molar mass of 106.42 g/mol. Use these data to estimate Avogadro's number.
  59. Physics

    I built a structure to protect an egg as we dropped it from increasing heights. Its last height was 3 m and it weighted .093 lbs. Can someone tell me how to calculate the final velocity? I don't know how to do this by ignoring time.
  60. cda

    Prop boxes, uniforms and other clothing, and a variety of dramatic sets can help children structure A. tie dying. B. hide-and-seek. C. sewing. D. fantasy play My answer is D
  61. Chemistry

    In 3-4 sentences, identify how the geometric structure of NF3 is different than that of NF4+. Explain how the geometry affects the ability of the molecules to experience a dipole effect. (I did the Lewis diagrams for both but I don't know what to do after
  62. structure and function of the human body

    What is the importance of ATP? explain where carbohydrate metabolism occurs in the cell, what additonal ingredient is needed and what waste product is produced in this process?
  63. Chemistry

    Write a brief discussion of the relationship between the atomic spectrum (number and position of the lines) and the electronic structure (shell model) of the gases. I know that the bigger the atom, less energy and so does that have something to do with
  64. Chemsitry

    Use these data to estimate Avogadro's number. Palladium crystallizes with a face-centered cubic structure. It has a density of 12.0g/cm^3 , a radius of 138 pm , and a molar mass of 106.42 g/mol .
  65. Biology

    Which of the following is true for the nucleus? A) It has no definite structure B) It is surrounded by membrane C) It is the eukaryotic cell's energy-producing organelle D) It is closely associated with the Golgi apparatus. E) It is always bluish purple in
  66. teas

    which of the following is the main function of vitamins? A.provinding structure to cell membrane B.supplying brain with energy source c.Facilitating action of enzymes D.Promoting absorption of carbohydrates
  67. psychology

    Wilhelm Wundt created a form of self-observation called _____ that he used in an attempt to understand the mind and the structure of thought processes. psychoanalysis reinforcement introspection conditioning A?
  68. Chemistry

    In a closed container 1L of chlorine reacts with 1L of nitrogen and 1L of hydrogen. I need to give lewis structure, vsepr, box notation for valence electrons etc. (i know how to do this) But I'm doubting on what the reaction equation would be.
  69. math

    In your opinion, how is the order operation used to solve equation. exponets, groups, multiplication, division, addition, subtraction. This allowes you to get the same result every time..... I hope this helps :) I searched Google under the key words "math
  70. statistics

    3 different drugs are under consideration for trating a given ailment. in the past 10,000 applications, drug A was sed 2500 times, drug B 4000 times, and drug C 3500 times. when an expert was asked to rank the effectiveness of the 3 drugs, he replied:
  71. calculus help

    Suppose that f'(x)= (2x^2-5x-12)/(3x^2-7x+2) and that f(x) is continuous for all real numbers x. a) Do a sign diagram to list the values of x where f(x) has local maximums and local minimums. In addition, list the intervals where f(x) is increasing and
  72. astronomy

    Rank the following hypothetical planets -- all of which have the same total mass and same radius -- from lowest moment of inertia to highest moment of inertia: 1) A uniform sphere of mixed up rock and iron 2) A rocky planet with an iron core 3) A rocky
  73. Physics

    A team is chosen to design an orbiting space station that is shaped like a wheel 5o meters in diameter with is mass of 4*10^5 kg contained in the rim portion of the wheel. The space station will rotate at a rate such that a person working in the wheel will
  74. Chemistry

    Give three substances with different structures and different chemical composition and explain why they are different from each other. If possible, give the chemical composition or formula of the substances. Thanks.
  75. English

    6 Which of the following descriptions best conveys the author’s negative attitude toward television? (1 point) communications instrument form of national linkage toy medium for selling Use the passage to answer the question. 8 Which statement is true
  76. MRP Operations Managment

    On Hand is the quantity of the item that is on hand at the beginning of period 1. Lead time is the amount of time from when an order is placed to when it arrives. See page 278. Lot Size - LFL means lot-for-lot, we order material only as it is needed. See
  77. Algebra

    A 5 digit positive integer is a "mountain number" if the first 3 digits are in ascending order and the last 3 digits are in descending order. For example, 35 761 is a mountain number, but 32 323 and 35 655 are not. How many 5 digit numbers greater than 70
  78. math

    If you earn the grades of 81, 84, 78, 80 in four tests what should your final test’s score be in order to have an average of 81%? .81x400=324 Need a total of 324 pts Test grades so far 81,84,78,80 = 323 324-323=1 You need at least one more point in order
  79. physics

    A lift is used to carry boxes to the top floor of a hotel 20m high.A total weight of 100kg of boxes was caried up in 20second.If the useful output of the engine driving the lift mechanism is 1.2 kilowatt.calculate the efficiency of the engine of the lift
  80. physics

    A town is planning on using the water flowing through a river at a rate of 5.0X10^6 kg/s to carry away the heat from a new power plant. Environmental studies indicate that the temperature of the river should only increase by 0.50ºC. The maximum design
  81. Poetry

    This is my poem. :P Does it fit into the theme of loneliness? Loneliness Never Sleeps. I scream, call for help, my lungs frozen in ice I can't breathe, I'm alone, my screams don't suffice My heart pounding hard, wishing someone would hear I begin to taste
  82. Chemistry

    Under the correct conditions, the element molybdenum emits X-rays with a characteristic wavelength of 0.711A (7.11*10^-11m). These X-rays are used in diffraction experiments to determine molecular structures. How fast does an electron need to be moving to
  83. Human Resources

    Which of the following is a correct statement about dejobbing? A. Dejobbing involves viewing organizations as a field of work to be done .B. Dejobbing involves the downsizing or elimination of jobs .C. Dejobbing involves emphasizing on detailed job
  84. Chemistry

    Which of the following molecules are linear? BF3 HN3 COS NH3 O3 SiF4 AsH3 SO2 C2H2 PF3 CF4 H2O SO3 HCN N2O H2S CS2 After drawing out all the lewis structures, and using VSPER theory, I found: COS, C2H2, CS2, HCN to be linear. Am I right/missing any?
  85. Calculus

    Can someone help me finish this question... I got most of the answers but need help. Suppose that f(x)=3x−6x+5. (A) Use interval notation to indicate where f(x) is defined. If it is defined on more than one interval, enter the union of all intervals
  86. English

    1. She still isn’t ready. 2. She still is not ready. 3. She is still not ready. 4. I still don't like chestnuts. 5. I still can't remember them. 6. I still do not like chestnuts. ----------------------------- This question is about the word order of
  87. math

    A burger restaurant advertises that there are 96 possible ways to order your burger, assuming you have it on a white, wheat or sourdough bun. How many ways can you order a burger on a sourdough bun?
  88. chemistry

    please explain the dimensional analysis, and atomic structure? The conversion table for metric to English and English to metric? Dimensional analysis is the procedure for changing from one unit to another. For example, convert 12 inches to centimeters. The
  89. physics

    With each cycle, a 2650-W engine extracts 2330 J from a thermal reservoir at 85.1°C and expels 1840 J into a thermal reservoir at 20.9°C. a) What is the work done for each cycle? b) What is the engine's efficiency? c) How much time does each cycle take?
  90. Physics

    4th order dark fringe and 2nd order bright fringe spaced 2.5 cm aparte appear on the screen placed 1 m behind the double slit. What is the spacing of the slits if the wavelegth ofincident light is 500nm? First I converted the numbers: x= .025m wavelength=
  91. math

    How do you solve system of equations and tell if they're consistant and independant,consistant and dependent,and inconsistant? If you find no solutions then the system is inconsistent. Suppose you have N variables and M equations (N larger than or equal to
  92. O-CHEM

    Hexanoic acid (structure below to my best ability) is only slightly soluble in water but is readily soluble (with stirring and shaking) in both 0.6 M NaHCO3 and 2.5 M NaOH. O || /\/\/ \ OH
  93. Economics

    1.) How do producers use market research to help maximize profits? 2.) Give two examples of companies that are characterized by a monopolstic competition market structure.
  94. English

    Leaving Home(the play)proves that the family structure is by far the greatest cause of people's social dysfunctioning. say why you agree or do not agree with this statement.
  95. Project management

    work breakdown structure deliverables are ignored and replaced with activities or tasks that have been grouped in phases True or false? ****(False)
  96. biology

    do you have basic cell structure typical plant vs animal cells organelles- stucture and function DNA DNA replication
  97. applied logic, math

    writing a program using loop structure, need the equation to produce all even numbers from 2-100 to print out each time I go through the loop
  98. Chemistry

    Draw the Lewis Structure of CH3NCS including all resonance forms. Assign formal charges. Do not include resonance arrows.
  99. Chemistry

    What is a glucose molecule structure made up of? Is it: oxygen, hydroxl ions, hydrogen ions, and carbon bonds? I'm not good at this, is this even close to being right?
  100. Science

    why would a DNA structure in which each base type could form hydrogen bonds with any of the other 3 base types not produce a molecule that could be replicated easily?.