Questions Asked on
May 3, 2008

  1. Physics

    Neutral metal sphere A, of mass 0.10kg, hangs from an insulating wire 2.0m long. An identical metal sphere B, with charge -q is brought into contact with sphere A. Sphere A goes 12 degrees away from Sphere B. Calculate the initial charge on Sphere B. Note:

    asked by Alex
  2. Chemistry -- to Dr.Bob

    What is the pH of the solution created by combining 11.10 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HC2H3O2(aq)? ok Dr. Bob so here's the work NaOh: .00111 Acetic Acid: .0008 Salt produced: .00111-.0008= .00031 Concentration of salt:

    asked by Amy
  3. Physics SOUND

    What is the resultant sound level when an 80-dB and an 85-dB sound are heard simultaneously?

    asked by Anonymous
  4. Chemistry

    Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. Two lone pairs of electrons are assigned to the oxygen in each Lewis structure of all three molecules. B. H-O-H and C-O-H bond angles are all equal to 1095. C.

    asked by Tom
  5. Statistics

    It costs you $10 to draw a sample of size n=1 and measure the attribute of interest. You have a budget of $1,200. a. Do you have sufficient funds to estimate the population mean for the attribute of interest with a 95% confidence interval 4 units in width?

    asked by Meagan
  6. Physics

    A Coast Guard airplane needs to drop a rescue package to a ship floating adrift in the ocean. The plane flies 55 m above the ocean at a speed of 215 km/h. How far away from the ship should the crew drop the package out of the plane so that the package hits

    asked by Eva
  7. Chemistry

    The molecular structure around the oxygen in water is _________ I don't know what to put

    asked by CHRIS
  8. Physics

    When you approach a blinking source of light, the frequency of its blinking is seen to: decrease, increase, or remain the same always. I THINK IT IS INCREASING. If you are traveling at close to the speed of light and shine a flashlight out in front of you,

    asked by clark
  9. Calculus

    A particle moves on a vertical line. Its position, s, in metres at t seconds is given by s(t) = t^3 - 9t^2 + 24t, t>0/ I found the velocity and acceleration functions. s'(t) = 3t^2 - 18t + 24 s''(t) = 6t-18 b) When is the particle moving up? down? c) Find

    asked by Alex
  10. science

    what is man made ecosystem?

    asked by akshar
  11. mythology

    a good title for a dragon

    asked by vebi
  12. UNAIDS

    DO You think the UNAIDS is an effective organization with regards to its response to the AIDS crisis in AFrica? To some extent I believe that they are effective because unlike other organizations the UNAIDS is a culmination of countries around the world

    asked by MARY
  13. Chemistry

    The molecular structure around all the carbons in ethanol is ________ I don't know what to put

    asked by CHRIS
  14. chemistry

    Hexane is a hydrocarbon (a molecule containing only carbon and hydrogen) with a molecular weight of 86.18 g/mol, a density of 0.660 g/mL, and a boiling point of 69C. Pentanol is an alcohol (a hydrocarbon with a "OH" group attached to one of its carbons)

    asked by Tom
  15. applicable maths--sequence

    hello, i need some practises on: 1)the language and notation of sequence. 2)Recursive definition for a sequence 3)the Nth therm or general term for a sequence. can someone please give me some useful website regarding the topics above (or any other possible

    asked by Ann
  16. Maths

    hello Can someone please help me with solving simultanaous equations using graphs My problem is that i don't know how to plot them on the actal graph and nor I know how to plot the gradient withing this paticular situation I need help with some steps

    asked by JOJO
  17. Mathematics

    how do we plot this on a graph -2x+y=4

    asked by Veronica
  18. Human Biology-Birth Defects

    Hey I'm doing a report on clubfoot and I just researched this about it: "Complex segregation analyses suggest that the most likely inheritance pattern is a single gene of major effect, operating against a polygenic background." what does it mean by

    asked by Matt
  19. Zoology

    as the size and volume of flying birds increase, surface area of wings cannot increase proportinal to general body surface area. is this a true statement? explain your answer using words and math. bird size seems severely constrained wheras aircraft size

    asked by Kayla
  20. Zoology

    As homo evolved, many radical changes occured in anatomy, physiology, and behavior. talk about those many "advances" and then speculate on timing and sequencing of those changes. Did they likely occure according to a punctuated equilibrium model and did

    asked by Lisa
  21. Biology-HIV-AIDS

    I need to know 3 things an HIV+ mother can do to prevent the spread of the infection to her child.

    asked by Michael
  22. Biology-HIV-AIDS

    The Elisa test is how accurate?

    asked by Michael
  23. Physics

    According to special relativity, at high speeds the distance between distant locations is: a) shortened b) no different than if you were at rest c) lengthened

    asked by cguff
  24. Physics

    According to special relativity, the momentum (mv) of an object at relativistic speed is actually: more, less or no different than if it were at rest

    asked by clark
  25. math

    how do i graph a fraction? like say I had y=3/4x+1, how could I create plot points that are whole numbers? please help.

    asked by Julia
  26. Critical Thinking

    I am in week 7 and after week 5 and 6 am doubting my self on my homework that is due tommorrwo can you look to see if this is actually an argument the conclusion indicators were not as apparent in this reading this week. In fact, well after it was

    asked by Kay
  27. Urinalysis Lab: Biology

    What are 3 common tests done on bodily fluids, not including urine? :)

    asked by Hannah
  28. Urinalysis Lab: Biology

    If the process of ion attraction within the nephron is not functioning properly what would you expect to find in the blood and urine? Thanks!

    asked by Hannah
  29. physics

    A lamp operates with a current of 0.625A and a potential difference of 120V. What is the currnt flowing through the microwave?

    asked by chantel
  30. Math

    How do you a equation like: 4x + X +2(42-6)-23 + 5x =81 _ 2

    asked by Jeremy
  31. maths

    HI THERE, COULD SOME ONE PLEASE HLEP ME ON THIS QUESTION... A sample of the near-ground air concentration of caesium-137 at 11 locations in southern Germany a few days after the Chernobyl nuclear accident in 1986 consisted of the following measurements (in

    asked by kim
  32. criminal justice

    What are somes ways that we as a community can stop police brutality?

    asked by aa
  33. Health Care

    Describe at least two advantages to having a solo practice. Describe at least two benefits of having a group practice. Are there any disadvantages to having a group practice? What are the disadvantages to having a solo practice? My first time, no clues.

    asked by Vikky
  34. Health Care

    Ambulatory care consists of a wide range of health care services delivered in outpatient settings. Describe three of these settings and their purposes. What specific services are provided in each setting. Anyone with ideas please? I don't know where to

    asked by Patra
  35. Critical Thinking

    Identify any examples of bias presented by the author. If none exist, explain how you determined this. Until his death in 2003, Paul Simon was a professor at Southern Illinois University, where he taught classes in political science, history, and

    asked by CAL
  36. calculus: multivariable

    Find the points on the hyperboloid x2 −y2 +2z2 = 1 where the normal line is parallel to the line that joins the points (3,−1, 0) and (5, 3, 6). Please show me how to do it..the answer is [+- rad 6/(3), +- 2rad 6/(3), +- rad6/(3)]

    asked by sara
  37. history

    When was the Enlightenment? Thanks!

    asked by Junior
  38. Infertility

    Where can I find a list of Canadian statistics, such as graphs and/or tables that show the most recent Canadian statistics about infertility drugs? Thanks so much!

    asked by Montana
  39. business calculus

    A rectangular area is to be enclosed and divided into thirds. The family has $700 to spend for the fencing material. The outside fence costs $12 per running foot installed, and the dividers cost $30 per running foot installed. What are the dimensions that

    asked by RAY
  40. Health Care

    What specific services are provided in hospital emergency rooms?

    asked by Patra
  41. Math- Please help

    The one-to-one functions g and hare defined as follows. g={ (-7,-4), (-2,-9), (3,2), (8,-1) } h(x)= 4x +9 Find the following: g^-1 (2)= h^-1 (x)= (h o h^-1) (-7) =

    asked by Tegan
  42. buena park high school

    x-y=5 x+2y=7

    asked by kandy lian
  43. Solving Equations with variable on Both Sides

    I need help solving this. I've never been really good with fractions, so, that's probably why.: 3p/8 + 7p/16 - 3/4 = 1/4 + p/16 + 1/2

    asked by Mitch
  44. Economics

    Author are typically paid a royality which is a fixed percentage of revenue; a common figure 10% of sales revenue. Show that the price desired by an author is always less than the price desired by a profit maximising publisher. What is the elasticity of

    asked by Zio
  45. english

    are there any websites that have short essays on race/culture by authors like mark twain, amy tan, etc?

    asked by arielle
  46. research

    Can you provide a research example where all the human rights were respected and one or more were violated in Healthcare

    asked by Laly
  47. Nursing

    Identify a research study in the area that has marked cultural, ethical, or legal connotations.

    asked by Christy
  48. math

    x^2 /2 + 1 /x-1

    asked by Anonymous
  49. chemistry

    Why does it take longer for strong acids to react than weak acids?

    asked by phil
  50. Algebra

    I have done this problem alot and still don get it can some one help me?? Thank you Solve 3/x-9 + 6/(x-9)^2

    asked by Danny
  51. physics

    What difference does an astronomer see between the emission spectrum of an element in a receding star and a spectrum of the same element in the lab?

    asked by Kim
  52. Ordering decimals

    What is the easiest way to order a ten decimal numbers from greatest to least or visa versa. This is from a 4th grader... Thanks...

    asked by Marlo
  53. Pre-Calculus

    I need help solving this logarithmic equation: ln x + ln (x+3) = 1. I know ln x + ln (x+3)=ln [x(x+3)] and that is ln x^2 + 3x when broken down. Then you have to get rid of ln by taking the natural base e of both sides so in the end you have x^2+3x =

    asked by Kelsey