1. chemistry

    How long would it take to melt a 400 lb.block of ive at a temperature of 55 degrees

    asked by sandi on September 24, 2012
  2. Physics

    A block of mass m = 5.2 kg is pulled up a è = 24° incline as in the figure with a force of magnitude F = 34 N.

    asked by Josh on November 17, 2011
  3. Medical Office Asst

    On the ADA for Keith Konklin, the number 333-2589 should be placed in block A( #7 B) # 18 C0 # 19 D) #31

    asked by rachel on March 1, 2011
  4. chemistry

    If a block of wood with the length 1.05 m, height 5.24 cm, and width 3.36 cm and a mass of 2.56 kg what is the density?

    asked by eve on April 13, 2009
  5. physical science

    what is the density of a rectangular block that has a mass of 500g and a volume of 50cm3

    asked by Ja'Kyria on December 10, 2018
  6. Maths

    What is the density of a block of wood with a mass of 1 gram and a volume of 2 cm3

    asked by Anonymous on October 9, 2016
  7. science

    if a block of wood is pulled at constant speed on ice what would the friction be like

    asked by sally on April 9, 2011
  8. science

    we brought a block of un sliced of cheese on the same day, and isn't moldy at all

    asked by patricia on September 16, 2015
  9. geometry

    What size would your 5ft X 7ft bed be on a blueprint with a scale of 1 block = 5" x 5"?

    asked by noble on November 13, 2011
  10. physics (Simple harmonic motion)

    X(t)=0.142sin(2t+0.19) b) Find the travelled distance by block at t2=3.5min [37.963m].

    asked by bling pls help on September 3, 2016
  11. Physica

    In the figure shown ,f =40 N (angle force is 40 ) and m=2.0 kg . the magnitude of acceleration of the block is;

    asked by 1010 on July 15, 2012
  12. English

    I have writiers block..How would I start my research paper on animal rights?

    asked by HELP?!?! on February 26, 2011
  13. physics

    75 kg block is dropped from a height of 6 m. How much kinetic energy does it have when it has fallen halfway?

    asked by daviaa on July 11, 2013
  14. Physics

    A block of mass 5kg is lifted 2m in 3sec. Find the work done.

    asked by Andy on April 22, 2011
  15. World Geography

    REVIEW 1.Canada currently ranks first in the world in which category? A. Total number of Internet users B. Percentage of college and university graduates

    asked by bre on April 5, 2013
  16. Personal Finance

    Mary just deposited $33,000 in an account paying 7% interest. She plans to leave the money in this account for eight years. How much will she have in the account at the end of the seventh year? Mary and Joe would like to save up $10,000 by the end of three

    asked by Linda on March 24, 2010
  17. algebra

    5 yrs ago Montys age was 5 years less than twice Rachels age. In 3 years, one third of Rachels age will be 12 years less than Montys age. How old are they now?

    asked by joe on February 19, 2010
  18. math

    5 yrs ago Montys age was 5 years less than twice Rachels age. In 3 years, one third of Rachels age will be 12 years less than Montys age. How old are they now?

    asked by joe on February 19, 2010
  19. history

    The Fourth Amendment states that the right of the people against unreasonable search and seizures of their persons, houses, papers, and personal effects shall not be violated. This amendment to the U.S. Constitution upholds which of the following common

    asked by kayci on June 4, 2010
  20. Kennedy King

    7. You are scheduled to receive a $750 cash flow in one year, a $1,000 cash flow in two years, and pay a $300 payment in four years. If interest rates are 6 percent per year, what is the combined present value of these cash flows?

    asked by Dashawn on October 13, 2014
  21. Math Help!

    1.Find the interenst earned in an acount with $600.00 invested at 4.5% annual simple interest for 2 years. A. $540.00 B. $5,400.00 C. $54.00*** D. $13.50 2. Find the interest by an accound with $1,200 of simple interest of 4% for 3 years. A. $144.00 B.

    asked by Callie on December 5, 2014
  22. physics

    Goku wants to visit Andromaeda galaxy which is 2 million light years away from earth. If it takes 30 years in the frame of the spaceship to travel to Andromeda from earth, what should be the speed of the spaceship? Assume that the spaceship travels at

    asked by Kitty on November 10, 2015
  23. math

    Im stuck on this question. Could someone answer it. Id appreciate it. The projected rate of increase in enrollment at a new college is estimated by: dE/dt = 9000(t + 1)^-3/2 where E(t) is the projected enrollment in t years. If the enrollment is 5000 now

    asked by JL on April 25, 2011
  24. Types of Business Writing

    Assigment: write a business letter according to the background. Background:Assume that you’ve worked for the last five years as an administrative assistant for the Human Resources Department of Broadworth General Hospital. The Director of Human

    asked by Diana on September 22, 2013
  25. algebra

    child is now 3 years old - dad opens account with $10,000 it earns 4.5% annual intrest. a) construct formula (A(t)=Ao(a)^t) b) how much money will be in account when he is 10 years old c) if dad wants account to grow to 100,000 when he is 18 then what

    asked by cc on April 5, 2010
  26. Math

    A bank account balance for an account with an initial deposit of P dollars earns interest at an annual rate of r. the amount of money in the account after n years is described using the following expression: P(1+r)^n. What effect, if any, does decreasing

    asked by Tahir on August 30, 2018
  27. Math

    Could someone answer this so I understand it. Thanks The projected rate of increase in enrollment at a new college is estemated by dE/dt = 9000(t+1)^-3/2 where E(t) is the projected enrollment in t years. If the enrollment is 5000 now (t=0), find the

    asked by Jules on April 27, 2011
  28. 5th grade

    one light year is about 9 trillion kilometers . arctus is a star that is 37 light years from earth.if you are 11 years old now,how old will you be when light that is leaving arcturus today reaches earth. how far in kilometers willit have traveled .sow your

    asked by cheyenne on April 25, 2010
  29. Math

    The half life of plutonium is 250 years. If the starting mass is 750g find; An equation that models the mass of plutonium P(t) for t years from now. And find the amount of time required to reduce the plutonium to 200g

    asked by Micheal on June 3, 2017
  30. math

    the results of a survey of 100 households pointed to shoppers having a preference for house brand products in supermarkets It showed that of 280 households with a combined income of $6000 per month, 71 reported buying house brand products from June to

    asked by polishy on December 8, 2011
  31. Math

    Lisa takes a loan of $10,500 at a 9% simple interest rate for 7 years. a. How much interest will she pay after 3 years? b. how much interest will she pay in total for the loan? a. $2,835.00; $6,615.00 b. $8,280.00; $9,720.00 c. $13,598.00; $19,194.00*** d.

    asked by Anonymous on April 6, 2015
  32. Algebra

    Amtrak's annual passenger revenue for the years 1985-1995 is modeled approximately by the formula R=-60|x-11|+962 where R is the annual revenue in millions of dollars and x is the number of years after 1980. In what year was the passenger revenue $722

    asked by Keonn'a on September 8, 2018
  33. Compound Interest

    Payments of $1,800 and $2,400 were made on a $10,000 variable-rate loan 18 and 30 months after the date of the loan. The interest rate was 11.5% compounded semi-annually for the first two years and 10.74% compounded monthy thereafter. What amount was owed

    asked by Sat on August 2, 2009
  34. math

    Ernest want to buy a car costing R120,000.He want to pay cash for this model of car can only do this in one and a half years time. If the inflation rate is running at 7% per annum,calculate the cost of this car in one and a half years time.

    asked by portia on September 16, 2015
  35. College Algebra

    Suppose an investment account is opened with an intial deposit of $12,000 earning 9.6% interest. Round all answers to the nearest dollar. a. How much will the account be worth after 20 years if it is compounded monthly? $ b. How much will the account be

    asked by Keonn'a on November 19, 2017
  36. math

    RM65000 will be invested for 6 years 9 months. if the investment will be offered 5% compounded semi annualy for the first 2 years, 6% compounded monthly for the next 18 months and 7% compounded daily for the rest of the period ,find the future value of

    asked by fizz on April 24, 2014
  37. math

    RM65000 will be invested for 6 years 9 months. if the investment will be offered 5% compounded semi annualy for the first 2 years, 6% compounded monthly for the next 18 months and 7% compounded daily for the rest of the period ,find the future value of

    asked by melina on April 25, 2014
  38. math

    RM65000 will be invested for 6 years 9 months. if the investment will be offered 5% compounded semi annualy for the first 2 years, 6% compounded monthly for the next 18 months and 7% compounded daily for the rest of the period ,find the future value of

    asked by amy on April 26, 2014
  39. economics

    Samantha Jones has a job as a pharmacist earning $30,000 per year, and she is deciding whether to take another job as the manager of another pharmacy for $40,000 per year or to purchase a pharmacy that generates revenue of $200,000 per year. To purchase

    asked by aaniya gill on August 8, 2011
  40. Jake1214

    Let's say penicillin can kill the bacteria. After using it for 10 years, the bacteria developed resistance to penicillin, so no one is using penicillin anymore because it has no effect. After 15 years, reports have found that most of the bacteria loss the

    asked by Antibotics - Resistance Evolution on December 19, 2007
  41. pre-calc

    The city planners of bakersfield, CA are studying the current and future needs of the city. The sewage system they have in place now can support 300,000 residents. The current population of the city is 180,000, up from 122,000 eight years ago. Assuming

    asked by maddy on January 9, 2010
  42. MATH help

    a certain radioactive isotope has a half life of approx 1,300 years . How many years to the nearest year would be required for a given amount of this isotope to decay to 55% of that amount. So I am not sure where to put the 1,300 1,300=2600*e^t or

    asked by HM on September 26, 2011
  43. MATH help

    a certain radioactive isotope has a half life of approx 1,300 years . How many years to the nearest year would be required for a given amount of this isotope to decay to 55% of that amount. So I am not sure where to put the 1,300 1,300=2600*e^t or

    asked by HM on September 26, 2011
  44. Math

    Monica had a saving a account which paid her an interest rate of 4%. After she had this account for 12 years, she had received $192 in interest. How much money had she put into the account at the beginning of the 12 years? Please help me answer this

    asked by Katy on March 29, 2015
  45. math

    RM65000 will be invested for 6 years 9 months. if the investment will be offered 5% compounded semi annualy for the first 2 years, 6% compounded monthly for the next 18 months and 7% compounded daily for the rest of the period ,find the future value of

    asked by fizz on April 20, 2014
  46. math

    Hi, Can you please help me. Thank-you. The present population of a town is 42000. a) Determine the population 4 years ago if the growth rate has been a constant 4%/year. b) Determine the number of complete years that have passed since the town first had a

    asked by Katie on April 18, 2009
  47. Calculus

    A radioactive isotope has a half life of 25 years. There was 100 mg of the isotope in 2005. (a) Find an expression for the amount of the isotope, A(t), that is still active using time t, measured in years since 2005. Your expression must be of the form

    asked by Anonymous on November 20, 2018
  48. Math

    a certain radioactive isotope has a half life of approx 1,300 years . How many years to the nearest year would be required for a given amount of this isotope to decay to 55% of that amount. So I am not sure where to put the 1,300 1,300=2600*e^t or

    asked by HM on September 27, 2011
  49. MATH help

    a certain radioactive isotope has a half life of approx 1,300 years . How many years to the nearest year would be required for a given amount of this isotope to decay to 55% of that amount. So I am not sure where to put the 1,300 1,300=2600*e^t or

    asked by HM on September 27, 2011
  50. math

    Suppose y , the number of cases of a disease, is reduced by 11% per year. (a) If there are initially 10,000 cases, express y as a function of t , the number of years elapsed. (b) How many cases will there be 6 years from now? (c) How long does it take to

    asked by George on March 13, 2018
  51. Math

    Your Aunt will give your $1,ooo if you invest it for 10 years in an account that pays 20% interest compounded annually. That is, at the end end of each year your interest will be added to your account and invested at 20%. What will your account be worth at

    asked by Natalie on August 30, 2006
  52. Chemistry

    If we ignore the small fraction of U-234, natural uranium has a concentration of 99.28 atom% of U-238 and 0.72% U-235. Their half-lives are, respectively, 4.68*109 and 7.038*108 years. (a) In the future, will the U-238 percentage be higher or lower? (b) In

    asked by Jane on October 16, 2013
  53. Language Art's

    1. It shall flash through doing ages, 2.It shall light the distant years; 3.And eyes now dim with sorrow 4. Shall be brighter through their tears 5. It shall flush the mountain ranges, 6. And the valleys shall grow bright; 7. It shall battle the hills in

    asked by #FreeGucci on March 7, 2016
  54. French 1

    I have to translate the following into French with an object pronoun. Can you please check for me. Thanks!!! 1.Show us the main course! 2.I’m lending some sugar to him 3.They (femine form) owe me a cake 4.Tell them his name!( use vous form) 5.I don’t

    asked by DANIELLE on May 24, 2007
  55. finance

    can anyone help me set up this problem bc im totally lost.... if a house = $125,000 you want to buy this house in 10 years its expected to increase 5% a year over a 10 year period assuming you can earn 10% annually on investment. how much should you invest

    asked by nneka on September 11, 2008
  56. Maths

    If Rick has $500 In his account after 4 years investing at 2.5% per year , how much money did he deposit initially ? Use =A =P (1+ r/n) 2). Your new laptop cost $1500 but depreciates in value by about 21% each year. a) How,much will your laptop be worth in

    asked by John on May 7, 2016
  57. Compound Interest : Future Value and Present Value

    Payments of $1800 and $2400 weere made on a $10,000 variable-rate loan 18 and 30 months after the date of the loan. The interest rate was 11.5% compounded semi-annually for the first two years and 10.74% compounded monthly thereafter. What amount was owed

    asked by Math on July 24, 2009
  58. compund interest

    Payments of $1800 and $2400 weere made on a $10,000 variable-rate loan 18 and 30 months after the date of the loan. The interest rate was 11.5% compounded semi-annually for the first two years and 10.74% compounded monthly thereafter. What amount was owed

    asked by thara on August 5, 2009
  59. Mat 116

    In 1990, the life expectancy of males in a certain country was 64.7 years. In 1994, it was 68.4 years. Let E represent the life expectancy in year t and let t represent the number of years since 1990. The linear function E(t) that fits the data is E(t)=

    asked by Rachel on August 2, 2008
  60. algebra

    In 1995 the life expectancy of males in a certain was 61.8 years. In 1999, it was 64.5 years. Let E represent the life expectancy in tears t and let t represent the number of years since 1995. The linear function E(t) that fits the data is E(t)=____t

    asked by James H. on October 5, 2010
  61. 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 on August 15, 2010
  62. AP Physics B

    The college board website only has exams from 1999 to last years. Some how my teach has gotten ahold of the free response questions from like 1980 and he said that they are open to the public and can be found on the internet. I can't seem to find were they

    asked by Jeff on November 18, 2009
  63. maths

    An investor invests £20 000 over three years in a scheme which offers compound interest of 4.5%, compound annually. Which one option gives the amount of money in the scheme after 3 years, rounded to the nearest pound? A. £22 891 B. £22 700 C. £22 833

    asked by kelly on April 19, 2007
  64. philosphy

    Some years ago, after not having seen my best friend from Duckwood High School for several years, we met for lunch and were surprised to find that our clothes and hairstyles were the same! The only possible explanation for this is that we both went to

    asked by PATRIS on September 26, 2017
  65. MATH HW HELP!!

    Mike Gioulis would like to have $25,000 in 4 years to pay off a balloon payment on his business mortgage. His money market account is paying 1.825% compounded daily. Disregarding leap years, how much money must Mike put in his account now to achieve his

    asked by Eli on May 20, 2014
  66. accounting

    1. A pressurized spray painter was purchased on April 1 of the fiscal year for $4,800. It has a useful life of 4 years and a residual value of $300. Determine depreciation expense for the first two years, assuming a fiscal year end of December 31 and using

    asked by shawna on November 13, 2009
  67. Algebra

    In 1993, the life expectancy of males in a certain country was 71.5 years. In 1998, it was 73.6 years. Let E represent the life expectancy in year t and let t represent the number.

    asked by Micheal on May 7, 2011
  68. pre algebra

    An area has been reforested. After 5 years , one of the tree is 2 meters tall. After six more years, the same tree is 3.2 meters tall. name 2 ordered pairs that can be used to to graph the information?

    asked by marcus on May 4, 2011
  69. Chemistry

    How much a 2.00 g 239 Pu would have decayed after 1.6 x 10^4 years? The half-life for 239 Pu is 2.4 x 10^4 years. amount remaining= originalamount*(.5)^(1.6/2.4) amount decayed = original - amountremaining

    asked by James on November 27, 2006
  70. math

    in 2001 it was estimated that 189 kg of plutonuim still remained. the half life of this plutonuim is 24,000 years. how much will be present in 24,000 years from 2001? please help

    asked by JT on October 17, 2017
  71. Mathematics

    A sum of money invested at compound interest amounts to rupees for 4624 in 2 years and 2 Rupees 4913 in 3 years the sum of money is

    asked by Ak!@#$%^& on February 10, 2018
  72. high school

    Explain in your own words the difference between an account that is earning simple interest for 5 years and another account that is earning interest that is compounded annually for 5 years

    asked by kenneth on August 26, 2010
  73. Math

    After 150 thousand years, only 1/8 of the original amount of a particular radioactive waste will remain. The half-life of this radioactive waste is how many thousand years?

    asked by Joy on August 20, 2013
  74. math

    Christin's age is equal to three times her age in 3 years' time minus three times her age 3 years ago. What is her age now? Please explain how you got the answer as well, thanks.

    asked by anonymous on January 10, 2017
  75. Maths

    theo invests £800 in an account that pays 2% simple interest each year how much interest is earned in a year how much there will be in the account after 5 years how much will there be in 10 years

    asked by Shreya on May 17, 2015
  76. math

    At a certain rate of simple interest, Rs.4050 amounts upto Rs.4526.50 in 2 years. At the same rate of simple interest, how much would 1 lakh amount in 3 years.

    asked by Keshav on July 13, 2017
  77. math

    Jon buys £4000 of shares. In the first year the shares increase in value by 8%. In the next two years the shares decrease in value by 5% each year. Work out the value of the shares at the end of the three years.

    asked by HS on October 23, 2013
  78. math

    the age of somya and yaseen are in the ratio 5:7.if somya were 9 years older and yaseen is 9 years younger one,find thier present age?

    asked by TUHITUHI on October 6, 2012
  79. math

    Steven borrowed $5000.00 from bank a for a 3% per annum for 3 years Fred borrowed $5000.00 from bank b for a 4% for 2 years who pays more interest on his loan

    asked by ryan on February 24, 2016
  80. accounting

    Jan. 1 Purchased a small company and recorded goodwill of $150,000. Its useful life is indefinite. May 1 Purchased for $90,000 a patent with an estimated useful life of 5 years and a legal life of 20 years

    asked by stacey on July 8, 2011
  81. Actuarial Math

    The sum of the accumulated value of 1 at the end of four years at a certain effective rate of interest, and the present value of 1 to be paid at the end of four years at an effective rate of discount numerically equal to I is 2.0098 Find the rate

    asked by Summer on October 12, 2010
  82. LA

    Poets use imagery and words with different connotations and denotations. In a paragraph, define and provide an example of imagery, connotation, and denotation. Then, explain how poets use these elements to contribute to tone in a poem. Support your answer

    asked by Heeble on April 9, 2016
  83. Emerald; World History

    What are some of the causes of the Crusades Check this site for the causes. http://encarta.msn.com/encyclopedia_761561210/Crusades.html This site will give help with that: http://www.middle-ages.org.uk/cause-of-crusades.htm

    asked by Juanita on March 31, 2007
  84. Math

    Meg's pension plan is an annuity with a guaranteed return of 9% interest per year (compounded semi-annually). She would like to retire with a pension of $70000 per semi-annum for 25 years. If she works 45 years before retiring, how much money must she and

    asked by Mani on April 23, 2011
  85. algebra

    The value, v, of a shopkeepers inventory software program is given by v= -1/2t+5, where t is the number of years since the shopkeeper bought the program. What is the program worth four years after it is 1st purchased. Plot the point with the given t-value,

    asked by anonymous on May 13, 2011
  86. math

    A tractor bought for R120 000 depreciates to R11 090,41 after 12 years by using the reducing balance method. Calculate the rate of depreciation per annum if the rate was fixed over the 12 years, and calculate the effective interest rate if interest is 9,8%

    asked by mihlali on April 8, 2015
  87. Physics

    The sun is a satellite of Milky Way's galactic central cluster. The sun revolves around this center with a radius of 2.28x10^20 m. and with a period of 2.52x10^8 years. If the universe is 16 billion years old. a) How many times has the galaxy rotated and

    asked by Anonymous on April 27, 2018
  88. Physics

    The sun is a satellite of Milky Way's galactic central cluster. The sun revolves around this center with a radius of 2.28x10^20 m. and with a period of 2.52x10^8 years. If the universe is 16 billion years old. a) How many times has the galaxy rotated and

    asked by Anonymous on April 27, 2018
  89. Social Studies

    1. Which period of history was influenced by the classical Greek and Roman works? A) Renaissance** B) Age of exploration C) Technology Era D) Dark Ages 2. Many Native Americans died after the Spanish invasion because of A) loss of homes B) loss of pride C)

    asked by Tim on October 6, 2015
  90. chemistry

    The glass panels of a sky roof need to be coated in order to screen out ultraviolet radiation (10-400 nm wavelength) but without color distortion in the visible spectrum. Candidate coating materials are gallium nitride (GaN) with a band gap,Eg, of 3.2 eV,

    asked by Anonymous on December 14, 2012
  91. math

    5. Cesium-137 is a radioactive isotope. The following formula represents the remaining amount of a 300 gram sample of cesium-137 in a storage tank after t years: N(t)=300e−0.02297t A) Determine the remaining amount of cesium-137 in the storage tank after

    asked by seb on August 5, 2016
  92. mass media

    what is the control of information from prebook manuscripts to the formation of early publishing houses to the evolution of todays'conglomerates ? who has had and who has not had access to printed information? Check this site for a brief outline of

    asked by student on August 17, 2007
  93. LA

    1. It shall flash through doing ages, 2.It shall light the distant years; 3.And eyes now dim with sorrow 4. Shall be brighter through their tears 5. It shall flush the mountain ranges, 6. And the valleys shall grow bright; 7. It shall battle the hills in

    asked by Anonymous (Help ASAP) on March 5, 2016
  94. math function rule input/output

    during a 10 hr train trip the distance you travel equals 45 miles per hour the number t of hours spent traveling The distance travelled is speed x time. Your question seems to be stated incorrectly. You say the travel time in the begining of the sentence

    asked by Anonymous on March 22, 2007
  95. math

    The heights of American women between the ages of 18 and 24 are approximately normally distributed. The mean is 64.1 inches, and the standard deviation is 2.5 inches. What percentage of such women are over 5 feet 8 inches tall? z = (68 - 64.1)/2.5 = + 1.56

    asked by Comet on July 6, 2015
  96. statistics

    c. Compare the two sets and describe what you discover. The following data sets shows the ages of the first seven presidents (President Washington through President Jackson) and the seven most recent presidents including President Obama. Age is given at

    asked by Yvette on September 19, 2010
  97. Annuities

    Victore French mad a deposit of 5000 at the end of ech quarter to book bank, which pays 8% intrest compounded quarterly. After 3 years, Victor made no more depostis. What will be the banance in the account 2 years after the last deposit. I have not a clue

    asked by Scott Ingraham on April 13, 2008
  98. Algebra 2

    Claire has borrowed $\$5,\!000$. She plans to pay off the loan in full after two payments. She will make one payment in 3 years, then another payment in 6 years. The second payment will be exactly double the amount of the first payment. How much is the

    asked by Bob on April 4, 2017
  99. Algebra 2

    Claire has borrowed $\$5,\!000$. She plans to pay off the loan in full after two payments. She will make one payment in 3 years, then another payment in 6 years. The second payment will be exactly double the amount of the first payment. How much is the

    asked by Bob on April 4, 2017
  100. chemistry

    A moon rock collected by a U.S. Apollo mission is estimated to be 4.50 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206Pb per 1.150 g of 238U in the rock? The

    asked by alice on February 12, 2015