Questions Asked on
June 18, 2007

  1. Calculus

    The hemispherical tank shown is full of water. Given that water weighs 62.5 lb/ft3, find the work required to pump the water out of the tank. ---------- What is shown is just the tank (a hemisphere) with a radius of 5 ft. ---------- First I calculated the

  2. Economics

    Will the aggregate quantity of goods and services demanded become more sensitive or less sensitive to changes in the price level if an economy becomes closed (that is, as foreign trade disappears)? In terms of the AD/AS diagram, will the AD curve become

  3. AD/AS Diagram

    There is an increasing trend of globalization in the world, part of which is manifested in credit and input markets. It could be argued that this will cause interest rates to be determined in international credit markets rather than in national credit

  4. Physics

    Does centripetal force acting on an object in uniform circular motion do work on the object? For work, force must be in the direction of movement. Please stop posting under differing names.

  5. science

    In a group of chicken eggs,how do you know which are fresh and which are old

  6. Question about PC's

    i have a question on my assignment that I donot understand. Which high performance processor is the fastest Pentium4 or Itanium4? I know there is an Itanium2. But, there isn't a Itanium4 is there? So, wouldn't Pentium4 be the fastest? Yes, the Pentium 4 at

  7. Physics- sound

    As the drawing shows, the length of a guitar string is 0.628 m. The frets are numbered for convenience. A performer can play a musical scale on a single string, because the spacing between the frets is designed according to the following rule: When the

  8. English Composition

    you are the director of the research department at a teaching hospital. You are regularly published in the medical journal, and you are also responsible for the content and accuracy of your staff's research articles. You also serve as an unofficial

  9. social studies

    wat the hell is rampurva bull capital.......? please plz plz plz plz plz plz..... temme.... Bull Capital Rampurva Maurya 323 - 185 BCE The 8’9" Rampurva Bull capital comes from one of a pair of pillars found at the same site on the Gandak river, about

  10. writing

    Describe a time when your moral values influenced the way you responded to an issue. What differences did you notice between your logical reasoning process and your moral reasoning process? What were the possible consequences or outcomes of your decision?

  11. writing

    Compile an annotated bibliography in APA format of sources you have found for your research paper. About gays in the military? APA Guidelines: (Broken Link Removed) Annotated: (Broken Link Removed) =)

  12. more thermo

    For the following question I was able to find the heat transfer and the entropy but I am having trouble finding the work done. When i solved delta E = Qnet - Wnet I got Win = Wout but Im not sure that is correct. I think that i need to solve for the final

  13. Maths, continuity

    Plz help me out with a solution... f(x) = sin(1/x) when x is not = to 0 and f(0) = 0 Thanx in advance... A function is continuous if Limit of y-->x of f(y) equals f(x) for every x. In this case you have t see if this is the case for x = 0. f(0) = 0,

  14. Maths, differential equation..

    ( ( e^( -2( X^(1/2) ) ) / x^(1/2) ) - (dx/dy) = 1

  15. math

    if x =3 and y = -4, find the value of 8x -10y I will be happy to critique your work/ or thinking on this.

  16. physical science

    compare the positions of the electrons in bohr's model of the atom with their positions according to modern atomic theory. state the importance of valece electrons in the organization of the periodic table

  17. physical science

    state the importance of valence electrons in the organizatin of the periodic table Since this is not my area of expertise, I searched Google under the key words "'valence electrons' periodic table" to get these possible sources:

  18. Geometry

    I really need some help please!!!!! Am I on the right tract? Given: ABCD is a parallelogram;

  19. Human Services Administrator

    What are some elements to a good appraisal system? Thank you for using the Jiskha Homework Help Forum. You do not state if you need this appraisal system in hiring or in evaluating an employee. Here are some links for you: 1. (Broken Link Removed) 2.

  20. science

    what is an activity the uses all 5 senses Eating Fried Chicken.

  21. physics

    At a recent rock concert, a dB meter registered 112 dB when placed 1.70 m in front of a loudspeaker on the stage. (a) What was the power output of the speaker, assuming a hemispherical radiation of the sound and neglecting absorption in the air? (b) How


    A tuning fork of frequency 558 Hz is placed near the top of the pipe shown in the Figure. The water level is lowered so that the length L slowly increases from an initial value of 20.0 cm. Determine the next two values of L that correspond to resonant

  23. Geometry

    The scale factor of triangle DEF to triangle HJK is 5/2. If EF =15 find JK EF : JK = 5 : 2 15 : JK = 5 : 2 15 * 2 = JK * 5 30 = 5(JK) 5(JK) / 5 = 30 / 5 JK = 6 Am I CORRECT ON THIS ONE? Looks like EF and JK are corresponding sides of similar triangles.

  24. Computer Questions

    I posted some computer questions and my answers on Saturday. They should be on somewhere between pages 2 through 10. would you please check my answers for me? There are about 16 questions and answers. Thank you!! It will say "computer questions" Thank you.

  25. physics

    I have tried the ideal gas law to find the temp and Pressure so that i could then find the work but i am not getting the right answer in the end. any suggestions? 3.1 One kilogram of air in a piston-cylinder device undegoes a thermodynamic cycle composed

  26. College Biology

    1. WHat kind of vegetation (or biome) would be found on the western slope of mountains at 6,000 feet? Explain. 2. How are the general characteristics of plants (for example, morphology influenced by climate?) In other words, explain what effects climate

  27. English IV

    How does the Hitchhiker's Guide to the Galaxy link to the British literature? Is Douglas Adams a British author? What do you do when a teacher hates you enough to fail you in that class? and

  28. physics

    At the Indianapolis 500, you can measure the speed of cars just by listening to the difference in pitch of the engine noise between approaching and receding cars. Suppose the sound of a certain car drops by a factor of 2.40 as it goes by on the

  29. CALC II

    Determine the convergence of the following series using the nth-partial sum or geometric series formula. The sum of n=1 to inifitiy 1/(9n^2+3n-2) How do I start? I'm guessing I should factor out the denominator but whats after that? It is close to a

  30. culture

    Please explain the Sapir-Whorf hypothesis in your own words. What do you think about the hypothesis? Do you accept it or reject it or are you somewhere in between? Can you think of any examples that illustrate how language and culture influence each other?

  31. Anthropology

    Describe an incident you participated in or observed that involved cross-cultural miscommunication. What was the outcome? You can use an incident involving miscommunication between people of different genders. This sounds like a fun assignment. You missed

  32. social

    What are some examples were the u.s has relied on international organizations.. Wat were some situations were the policy was being used? Check United Nations, SEATO, NATO. Here is a good source to begin with.

  33. Math

    I have a question.. I have a 90.7% in math right now and I need to bring it up to a 93%. The only thing left is the final exam, which is worth 10% of your grade. Does anyone know a formula or a method that will allow me to calculate what I need on the

  34. math

    what does "write 81 as a product of 3's" mean? what do i do? 3 to the 4th power, which can be written 3^4 or 3x3x3x3, equals 81.

  35. math

    what does "write 81 as a product of 3's" mean? what do i do? 3*3=9. That ought to get you started.

  36. math

    write 64 as a product of 2's what do i do??? factor 64 into product of twos. 2*2*2=8, that ought to get you started.

  37. Physics

    If centripetal force on an object in uniform circular motion is increased what is the effect on frequency of rotation if radius is constant. What is the effect on frequency and radius if both are free to vary. If veloicty increases, period is decreased, so

  38. Finance

    need 1-2 pages Nancy Tai has recently opened a revolving charge account with MasterCard. Her credit limit is $1000, but she has not charged that much since opening the account. Nancy hasn't had the time to review her monthly statements as promptly as she

  39. Calculus

    Find the exact coordinates of the centroid. y = sqrt[x], y = 0, x = 9. -------------- Is this basically 1/4 of an oval/ellipse? If so then the area would be: pi*9*3, correct? So the X coordinate would equal: 1/Area * Integral from 0 to 9 of (x*f(x))*dx