Questions Asked on
June 19, 2007

  1. chem

    a 2.50g sample of hydrate of calcium sulfate losses 0.523g of water when heated. what is the mass percent of water in the hydrate and the formula for the hydrate difference of the two masses divided by the initial mass. I believe Adam should reconsider his

    asked by mocha81
  2. Economics

    I think I get this but could use some guidance to make sure, I am having problems with 2e). 1)In an article about the financial problems of USA Today, Newsweek, reported that the paper was losing about $20 million a year. A Wall Street analyst said that

    asked by Ed
  3. physics

    A prospector finds a solid rock composed of granite ( = 2650 kg/m3) and gold. The volume of the rock is 3.05 10-4 m3 and its mass is 3.57 kg. What mass of gold is contained in the rock? I thought that I could used some ratio, but I have no idea how. Our

    asked by JJ14
  4. physics

    If 80% of a piece of wood is submerged in water before oil is added, find the fraction submjerged when oil with a density of 781 kg/m^3 covers the block. (Don't neglect the buoyant force of air before the oil is added). I thought to find the density of

    asked by tmaria
  5. physics- density

    An air mattress is 2.1 m long, 0.55 m wide, and 13 cm deep. If the air mattress itself has a mass of 0.22 kg, what is the maximum mass it can support in fresh water? I know that I can find the volume and area, and the density of water. But I cannot find an

    asked by Andrew
  6. math

    what formulas do i use for this: Investments Suppose $10,000 is invested at an annual rate of 5% for 10 years. Find the future value if interest is compounded as follows. A) Annually B) Quarterly C) Monthly D)Daily (365 days) A) 10000*(1+.05)^10 B)

    asked by student
  7. math

    How did they get to this answer can someone explain the steps. Directions: Find the future value of each ordinary annuity, if payments are made and interest is compounded as given. R = 15,000; 12.1% interest compounded quarterly for 6 yrs. answer:

    asked by student
  8. Computer Questions

    I need your help again! Will you please check these questions and my answers and let me know the ones that I have wrong? I surely would appreciate it!! 1. You have over forty applications installed on your computer. However, most of your time on the

    asked by This is for MattsRiceBowl
  9. social studies

    why to protect konark It's important to protect Konark Temple because of its architectural beauty, religious significance, tourist attraction, and its age; its over 800 years old. Check this site for more information.

    asked by sourav
  10. Computer Science

    Describe Operating systems theory and configuration at the Unix kernel/Windows registry level Describe standard operating system services (RPC, NetBIOS, etc) Describe File storage, management, and security shemes Describe command line administration of

    asked by Joshua
  11. maths

    solve this equation;5t(6 times 10 neg.3)=(6 times10neg -2) does it look like this: t =variable 5t(6 X 10 - 3) = 6 X 10 - 2 are there any parenthesis missing? If you have only t that means it wants you to solve for the varible t.

    asked by celine
  12. math

    what formula would i use to solve for this: Loan Interest A developer needs $80,000 to buy land. He is able to borrow the money at 10% per year compunded quarterly. How much will the interest amount to if he pays off the loan in 5yrs? You need a loan

    asked by student
  13. MacroEconomics

    I have the first 4 parts but fall short on the last 2 answers: For each of the following situations, indicate the direction of the shift in the supply curve or the demand curve for dollars, the factor causing the change, and the resulting movement of the

    asked by Joe
  14. culture

    What is Sapir-Whorf hypothesis. http://en.wikipedia.org/wiki/Sapir-Whorf_hypothesis =)

    asked by Roger
  15. english 3

    What did Smith note the President? Please clarify your question. Is a reference to a book? Which Smith? Also -- as written, your question doesn't make any sense to me. We'll be glad to help you when we understand your question and to what it's referring.

    asked by Anonymous
  16. math

    What formula should i use for this problem.Or how should i solve it stock growth: A stock that sold for $22 at the beginning of the year was selling for $24 at the end of the year. If the stock paid a dividend of $0.50 per share, what is the simple

    asked by student
  17. english

    can old man and the sea and old man both be considered a tragedy/tragic hero since macbeth is driven by him ambition and santiago by his pride? is santiago a tragic hero since he is not of noble stature or great power? A tragic hero doesn't need to be a

    asked by john
  18. english

    unscramble this for me 1.aceditt 2.tanecivoonnl Try these sites. http://www.ssynth.co.uk/~gay/anagram.html http://wordsmith.org/anagram/

    asked by ciara
  19. science

    You can find this by Google searching on Kingdom fungi kingdom protoctista kingdom monera what are the common examples of the kingdom fungi, kingdom protoctista and kingdom monera?

    asked by bobpursley
  20. math

    also, what formula would i have to use for this: Effective Rate An advertisement for E*TRADE bank boasted "We're ahead of banks that had a 160-yr start," with an APY (or effective rate) of 2.01%.* The actual rate was not stated. Given that interest was

    asked by student
  21. Algebra

    How would you prove this theorem: The column space of an m x n matrix A is a subspace of R^m by using this definition: A subspace of a vector space V is a subset H of V that has three properties: a) the zero vector of V is in H. b) H is closed under vector

    asked by Min
  22. SOCIAL STUDIES

    WHAT ACT WAS PASSED BY BRITISH PARLIAMENT FOR REVENUE There have been many such Acts, but if you are studying American colonial history, you are probably refering to the Stamp Act of 1765. See http://en.wikipedia.org/wiki/Stamp_Act_1765 for more about it.

    asked by SHEIA
  23. Research

    How will you utilize research techniques in the future? Other teachers may have further ideas for you. Here is a link to one of the best search-tools websites online, IMHO: http://www.sou.edu/library/searchtools/ You can learn how to search and how to

    asked by Anonymous
  24. math, algebrai II

    Can someone please explain how they got the answer for this problem its in my book: Directions: Find the amount that should be invested now to accumulate the following amounts, if the money is coupounded as indicated. $7500 at 12% compounded quarterly for

    asked by student
  25. American History!

    Okay, so i have to write an essay, and i'm having LOADS of trouble comming up with something, any help would be appreciated! "John Winthrop founded a society in Massachusetts that he would later write about calling "a city upon a hill". He was referring to

    asked by narine
  26. english

    what themes do old man the sea and macbeth have in commmon? tragedy? You can look each one up at www.sparknotes.com/lit and read the "themes, symbols ... " section in each and see what you find. Let us know if you have questions once you have looked up and

    asked by james
  27. math

    what formulas do i use for this: Investments Suppose $10,000 is invested at an annual rate of 5% for 10 years. Find the future value if interest is compounded as follows. A) Annually B) Quarterly C) Monthly D)Daily (365 days) In each case, use the formula

    asked by student