1. physics

    have a question involving the spring costant: A 2-kg block is attached to a horizontal ideal spring with a spring constant of 200N/m. When the spring has its equilibrium length the block is given a speed of 5 m/s. What is the maximum elongation of the

    asked by Diane on November 5, 2006
  2. English

    1. We can massage old people's backs. 2. We can help them use a computer. 3. We can visit their houses and clean rooms. 4. We can take them to a bathroom in wheelchairs. 5. We can help them wash their faces. 6. We can help them take a bath. 7. We can

    asked by rfvv on November 1, 2010
  3. Finance - Annuities

    Natasha plans to deposit $4,000 per year in her account for each of the next 4 years. Thereafter, she expects to deposit $1,500 per year for another 4 years. All deposits are made at year-end. Interest rates are expected to be 8 percent for the next 2

    asked by Niki on January 27, 2014
  4. English

    I still have a few doubts. I hope you can have a look at them, too 1)He spent three years building the cathedral. But: He took three years to build the cathedral. 2)We wont's start dinner (the dinner?) until your father arrives home. 3) The Great Fire of

    asked by Franco on January 9, 2011
  5. Statistics

    A study was conducted to investigate the relationship between the resale price, y (in hundreds of dollars), and the age, x (in years), of midsize luxury American automobiles. The equation of the line of best fit was determined below. y = 179.3 − 20.78x

    asked by Greg on January 28, 2016
  6. History

    Can you please find any documents (pictures, quotes, info) for the following question: Compare and contrast the economy and politics that impacted the global economy of Europe during the Middle Ages and the Renaissance. Thank You

    asked by Josh on December 10, 2010
  7. statistic

    The data below represent the ages of female actors at the time of winning an Oscar (1956 - 1996). 41 27 34 34 41 30 61 42 49 27 31 60 34 35 74 21 29 39 39 37 61 26 31 33 41 33 38 30 26 37 41 49 26 35 28 24 35 42 33 38 81 45 What is the frequency for the

    asked by bria on July 12, 2012
  8. child development

    heritability estimates are computed by comparing the IQ correlations of a)the same group of individuals at various points in time b)individuals from different ethnic and SES groups c)children of different ages d)twins and other relatives

    asked by giideon on January 16, 2013
  9. HEALTH

    Which ethnic or racial group is at a lower risk of suicide for people ages 65 or older? A. Asian and Pacific Islanders B. Hispanics C. Non-Hispanic Blacks D. Non-Hispanic Whites C?

    asked by Aya on August 12, 2012
  10. math

    In 1992, life expectancy of males in a certain country was 72.7 years. In 1999 it was 76.5 years. E represent the life expectancy in year 1 and t represent the number of years since 1992. E(t)= [ ]+ [ ] round to nearest tenth E(13)= [ ]round to neareast

    asked by plz help on May 4, 2012
  11. physics

    A block of mass 2.50 kg is pushed 2.80 m along a frictionless horizontal table by a constant 12.0 N force directed 25.0° below the horizontal. (a) Determine the work done by the applied force. J (b) Determine the work done by the normal force exerted by

    asked by monic on October 11, 2012
  12. physics

    A block of mass 2.50 kg is pushed 2.80 m along a frictionless horizontal table by a constant 12.0 N force directed 25.0° below the horizontal. (a) Determine the work done by the applied force. J (b) Determine the work done by the normal force exerted by

    asked by monic on October 12, 2012
  13. phyzzzics

    I NEED ANSWERS AND HOW YOU GOT IT~!! 3. If you use a horizontal force of 30.0 N to slide a 12.0-kg wooden crate across a floor at a constant velocity, what is the coefficient of kinetic friction between the crate and the floor? 4. A force of 4.0N is large

    asked by johnica! on December 6, 2009
  14. math

    Fred begins walking toward John house at 3 mi/h. John leaves his house at the same time and walks toward Fred's house on the same path at a rate of 2 mi/h. How long will it be before they meet if the distance between the houses is 4 miles? First, I set up

    asked by robert on October 24, 2007
  15. math

    a school is divided into 4 houses,P,Q,R and S.On sports day,the students line up so that a student from P is first in line,then a student from Q then a student from R then a student from S,then a student from P and so on with same order repeating.From what

    asked by wan on November 13, 2012
  16. Managerial Economics

    You are considering setting up a software development business. To set up the enterprise you will need to buy equipment costing $100,000. This equipment will be depreciated straight line over 5 years to a zero salvage value. Its market value at the end of

    asked by Karen on December 14, 2010
  17. math

    in 1991 the life expectancy of males in a certain country was 73.7 years in 1997 it was 76.9 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 fits the data is

    asked by Carey on August 27, 2011
  18. math-word problem

    In 1992, the life expectancy of males in a certain country was 73.5 years. In 1996, it was 75.7 years. Let E representthe life expectancy in yeart and let t represent number of years since 1992. Fill in the linear function E(t) that fits the data

    asked by KiKi on March 27, 2010
  19. math- CAN SOMEONE PLEASE CHECK MY WORK

    In 1992, the life expectancy of males in a certain country was 73.5 years. In 1996, it was 75.7 years. Let E representthe life expectancy in yeart and let t represent number of years since 1992. Fill in the linear function E(t) that fits the data

    asked by KiKi on March 28, 2010
  20. math

    The mean age of the 43 presidents of the United States (as of 2011) on the day of inauguration is 54.6 years, with a standard deviation of 6.3 years. A researcher constructed a 95% confidence interval for the mean age of presidents on inauguration day. He

    asked by N on February 16, 2017
  21. Science

    Bart believes that mice exposed to microwaves will become extra strong (maybe he's reading too much Radioactive Man). He decides to perform this experiment by placing 10 mice in a microwave for 10 seconds. He composed these 10 mice to another 10 mice that

    asked by Mika on August 24, 2016
  22. Science

    Bart believes that mice exposed to microwaves will become extra strong (maybe he's been reading too much Radioactive Man). He decides to perform this experiment by placing 10 mice in a microwave for 10 seconds. He compared these 10 mice to another 10 mice

    asked by Jamie on August 12, 2008
  23. physics

    A NON-UNIFORM board of length L and mass M has a center of mass at 5/6L. If the fulcrum is placed at the center of the board and a block of mass m is placed at the right of the board, then where must a block of mass 3m be placed to balance the board? I

    asked by min on November 15, 2012
  24. Math

    There are four children in a family. The sum of the squares of the ages of the three youngest children equals the square of the oldest child. How old are the children?

    asked by Cindy on October 9, 2018
  25. math

    A study was conducted to investigate the relationship between the resale price, y (in hundreds of dollars), and the age, x (in years), of midsize luxury American automobiles. The equation of the line of best fit was determined below. yhat = 183.8 −

    asked by gayle on May 26, 2013
  26. math

    A study was conducted to investigate the relationship between the resale price, y (in hundreds of dollars), and the age, x (in years), of midsize luxury American automobiles. The equation of the line of best fit was determined below. yhat = 183.8 −

    asked by gayle on May 26, 2013
  27. physics

    A block is at rest on the incline shown in the figure. The coefficients of static and kinetic friction are μs = 0.7 and μk = 0.59, respec- tively. The acceleration of gravity is 9.8 m/s2 What is the frictional force acting on the 29 kg mass? Answer in

    asked by james on November 10, 2013
  28. english

    1. Read the following sentence. The cars passing by are filled with commuters. Which of the following sentences is NOT true? (1 point) The sentence includes a present participle. The participial phrase modifies the word commuters. The participial phrase is

    asked by Angela Myers on May 8, 2012
  29. Algebra one story problem help please.

    in 1993, 2.00 Million females particpaited in U.S Highschool sports, by 2003, the number increased to 2.86 Mill. A) Write an equation in slope-intercept form that gives the number of females participaiting in US. highschool sports, ( in Millions) as a

    asked by Allyson on December 9, 2010
  30. Finance

    john deposited 3000 into an account with 5% annual interest rate compounde quarterly at the beginning of 2011. the bank guarantees that 5% annual interest rate for the next 10 years if john deposits 3000 every two years. assume that john does deposit 3000

    asked by Kid Kicker on October 6, 2011
  31. math

    there Are four children in a family, the sum of the squares of the ages of the three youngest children equals the square of the age of the oldest child. How old are all the children.

    asked by jo on August 29, 2012
  32. time value of money

    The ABC Computer Corporation is considering an increase in its annual advertising expenditure from $10 million to $15 million for a five-year period(i-e. in years 1 to 5. The marketing department estimates that the increased advertising will increase

    asked by nabeela on March 15, 2010
  33. french

    "Je te remercie pour tout que vous avez fait pour moi pendant ces quatre annees passees" Does the last part of this sentence translate correctly to "during the last four years years?" thanks

    asked by MK on May 2, 2009
  34. math

    Rental cost for offices spaces have been going up at 6.2% per year compounded annually for the past 5 years. If office space rent is now $32 per square foot per month, what were the rental rates 5 years ago

    asked by momo on February 27, 2012
  35. Math

    The only way to get to Ship Island is to take a boat, which is free for 2 and under, $17 for children 3 to 10 years old, $25 for seniors 62 and over and $25 for everyone else. Debbie paid $116 for 6 people in her family to go to the island for the day. Is

    asked by Kris on January 21, 2018
  36. Maths

    £2000 is invested at x% interest over three years. At the end of three years the money has grown to £2963. To the nearest percentage find the rate of interest. If you could help me out I would greatly appreciate it. I've tried to figure it out numerous

    asked by Steph on February 3, 2014
  37. Ms. Sue can you answer this please

    Damon had answer, but i just want to see if you'll explain it differently... The population of a town P(t)is modelled by the function P(t)=6t^2+110t+3000, where t is time in years. Note t=0 represents the years 2000. When will the population reach 6000?

    asked by Nina on November 18, 2012
  38. math

    Complete the table for the radioactive isotope. (Round your answer to two decimal places.) Isotope: 239Pu Half-life (years): 24,100 Initial Quantity: g Amount After 1000 Years: 0.6

    asked by madison on June 1, 2018
  39. Math

    A charter fishing company buys a new boat for $224,000 and assumes that it will have a trade-in value of $115,200 after 16 years. Find a linear model for the depreciated value V of the boat t years after it was purchased.

    asked by Jess on October 23, 2013
  40. maths-urgently needed

    A man invests Rs 3,20,000 for 2 years at 12.5% p.a. compounded annually. If the income tax at the rate of 20% is deducted at the end of each year, on interest accrued, find the amount he received at the end of 2 years.

    asked by Anonymous on February 10, 2013
  41. Calculus

    A deposit of $5,000 at 4% interest compounded continuously will grow to V(t) = 5000e^0.04t dollars after t years. Find the average value during the first 20 years (that is, from time 0 to time 20). (Round your answer to the nearest cent.)

    asked by Madison on December 10, 2014
  42. statistics

    Ramdom sample of 41 car owners results in a mean of 7 years. Population standard deviation of 3.75 years. Find a 95% confidence interval for the true population mean..My answer is (5.9, 8.1) but having problems with margin of error

    asked by Anonymous on December 9, 2012
  43. math

    How much money should be invested now (rounded to the nearest cent), called the initial investment, in a Treasury Bond investment that yields 4.75% per year, compounded monthly for 10 years, if you wish it to be worth $20,000 after 10 years?

    asked by jjiiddss 0-0 on May 4, 2016
  44. College Algebra

    A company that bought a machine for $30,000 wants to depreciate its entire value equally over the next ten years. Write an equation that represents the machine's value, v, in terms of the number of years that have passed since the machines purchase, t.

    asked by Haley on November 21, 2013
  45. algebra word problem

    Describe the values for x that may not be appropriate value even when they are defined by a function A function could, for example, indicate the amount of bone strength (y) in a living human body over time in years(x) . It would not make sense to look at

    asked by PJ on October 30, 2008
  46. maths

    Mr. and Mrs. Fox have each contributed $1825.00 per year for the last eight years into RRSP accounts earning 6.93% compounded annually. Suppose they leave their accumulated contributions for another five years in the RRSP at the same rate of interest.

    asked by mm on December 5, 2018
  47. science/biology

    how many years do 9 year old girls have iregular periods? at what age a woman's period stop? PLEASE HELP ME WITH THE HOMEWORK THANK YOU! i'm pretty positive there is not an exact age or amount of years-- are you supposed to have a time frame?

    asked by Tina on December 17, 2006
  48. physics

    A 1.3- block of ice is initially at a temperature of -3.5. If 6.6×105 of heat are added to the ice, what is the final temperature of the system? Find the amount of ice, if any, that remains. Suppose the amount of heat added to the ice block is doubled. By

    asked by katelyn on November 22, 2010
  49. Business Research and writing

    How do I analyze this data below? Thank you for taking the time to complete this brief survey for my class project. The information gathered will be analyzed to determine how an individual’s educational background relates to his or her career choice.

    asked by Suzi on June 1, 2008
  50. Math

    FIve years ago Zack would have been three times older than his young brother but five years from now he will only be two times older than his brother. How old is his brother? 25 In other words let x= brothers age so: 3(x-5)=2(x+5) Then 3x-15=2x+10 x=25 I

    asked by Oscar on September 27, 2006
  51. PHYSICSHELP

    For the Atwood's Machine so the mass on the right side is 5 kg box which is 3m from the *table (represents the straight line)* The left side of the pulley is 2kg box which is at the table. 1.) How do you know or what do you know about the force of tension

    asked by Dina on February 18, 2016
  52. physics

    A 3.1 kg block has an initial velocity of 15 m/s as it moves 12m on a rough horizontal surface with coefficient of kinetic friction of .23.. ~ then slides up a frictionless incline whose angle is 24 degrees. A (8 pts) Sketch energy pie charts at points a,

    asked by Anton on November 18, 2010
  53. Physics

    Please help me with these three questions,they deal with coefficient of friction 1) A car rounds a turn of radius 25m at a speed of 20m/s. Find the coefficient of friction neccessary to keep the car on the road 2) A man is attempting to slide a piece of

    asked by Bryian on January 28, 2010
  54. Physics

    Please help me with these three questions. They deal with coefficient of friction 1) A car rounds a turn of radius 25m at a speed of 20m/s. Find the coefficient of friction neccessary to keep the car on the road 2) A man is attempting to slide a piece of

    asked by Bryian on January 27, 2010
  55. physics

    I'm trying to rearange this equation for Mu s That is the greek letter Mu subscript s... the static coeficent of friction m2 = m1 sin theta - Mu s m1 cos theta ok I got this Mu s = -((m1 cos theta)^-1 (m2 - m1 sin theta)) ok I know that sin over cosine is

    asked by physics on July 30, 2009
  56. american history

    he has excited domestic insurrection among us and has endeavored to bring on the inhabitants of out frontiers the merciless indian savages whose known rule of warfare is an undistinguished destruction of all ages sexes and condition Whats the british king

    asked by lora on December 24, 2011
  57. The practice of working with school age children

    A 2006 survey stated that youngsters ages 12-17 who were left home three or more days a week were three times as likely to A. be working an outside job. B. engage in criminal behavior. C. campaign against the use illegal drugs. D. supervise neighborhood

    asked by Amanda on October 30, 2014
  58. World history

    Which of the following did NOT contribute to an increase in food production and population growth during the Middle Ages? A) the invention of the ox collar B) a climate change C) a heavy, wheeled plow with an iron plowshare D) a three-field system of crop

    asked by Nicole on December 4, 2017
  59. business law

    Name 3 everyday situations in which knowledge of the law would be useful. Think about laws pertaining to driving (speeding, DUI, etc.), mandatory school ages, dogs (biting others, leaving messes, etc.), theft (especially shoplifting), playing loud music.

    asked by Anonymous on February 21, 2007
  60. Maths

    Population of a village in certain year is 5837.it become 8796 after two years .What is the increase of population in those years

    asked by Anonymous on July 10, 2018
  61. Math

    If a piece of equipment cost 21,000 new and the equipment was worth 75% of its new value after 4 years what is its salvage value after 10 years

    asked by Anna on August 25, 2016
  62. Math

    Paul borrows $600 at an interest rate of 8% per years for 4 years. How much interest will he have to pay?

    asked by Tina on May 11, 2016
  63. chemistry

    If C14 has a half-life of 4,000 years, what fraction will be remaining after 36,000 years?

    asked by g on July 7, 2011
  64. college math

    The area of a wetland drops by 15 every 9 years. What percent of its total area disappears after 45 years?

    asked by Jade on April 1, 2014
  65. math

    some years in the 20th century have 4 different odd digits. How many of those years have the sum of the digits greater than 20?

    asked by al on April 11, 2013
  66. Math

    Eight years ago, Heather was twice as old as her brother David. Today, she is 12 years older than him. How old is Heather now?

    asked by Kathy on September 9, 2015
  67. Absolute and relative change

    The interest rate on a car loan has increased 50% over the last 10 years and is now 9%. What was the rate 10 years ago?

    asked by Anonymous on April 24, 2016
  68. math

    Some years in the 20th century have 4 different odd digits. How many of those years have the sum of the digits greater than 20?

    asked by reece on April 10, 2013
  69. algebra

    A boat is worth $7,000 when it is 5 years old and $2,000 when it is 10 years old. What is the slope intercept equation?

    asked by Penny on July 13, 2012
  70. launguage

    im taking chinese in highschool and i want to go to uc Berkeley and can i finish with two years as highschool requirement or i need three years

    asked by anyone on November 10, 2013
  71. Chemistry

    Assuming an element's half-life is 3.6 years. How much of 2 grams of the element would remain after 10.8 years?

    asked by Chandler on October 25, 2014
  72. Math

    If a piece of equipment cost 21,000 new and the equipment was worth 75% of its new value after 4 years what is its salvage value after 10 years

    asked by Anna on August 26, 2016
  73. help

    the half-life of a radium is 1690 years is 90 grams is present now, how much will be present in 70 years

    asked by Anonymous on December 2, 2011
  74. MAth

    How much interest is earned in two years in two years on $200 in a bank account at an interest rate of 6%

    asked by Anonymous on June 2, 2016
  75. Math

    Four years ago did was 14yrs old. Her brother was thrice her age. What will be their total age in n years.

    asked by Netra on January 30, 2017
  76. Algebra

    Rosa is 14 years older than her sister Amy. 3 years ago, she was 3 times as old as Amy. How old are they now?

    asked by Raquel on December 5, 2016
  77. MAth

    How much interest is earned in two years in two years on $200 in a bank account at an interest rate of 6%

    asked by Anonymous on June 2, 2016
  78. Math

    2.) Bonnie is four years older than Clyde. Ten years ago she was twice his age. How old is Bonnie?

    asked by Sherkyra8645 on December 14, 2010
  79. Math

    Initial population of a town is 18,691 and it has a doubling time of 15 years. What will the population be in 4 years?

    asked by Clare on December 15, 2013
  80. Physics

    A 2.0 lb block is given an initial speed of 4.0 ft/sec up an inclined plane starting from a point 2.0 feet from the bottom as measured along the plane. If the plane makes an angle (theta = 30 degrees) with the horizontal and the coefficient of friction is

    asked by Nora on March 12, 2015
  81. Math

    Kelly has 525 red, green, blue balloons. She has 4 times as many green balloons as red balloons. She has half as many blue balloons as green balloons. What is the value of r, the number of red balloons?

    asked by Ashley on September 26, 2016
  82. math-finance

    Colin borrowed some money at 7.16%?a compounded quarterly. three years later. he paid $5000 toward the principal and the interest. after another two years, he paid another $5000. after another five years, he paid the remainder of the principal and the

    asked by Allison on January 18, 2011
  83. Phys

    Three blocks on a frictionless horizontal surface are in contact with each other. A force F is applied to block A (mass mA). (a) Draw a free body diagram for each block. I've drawn it and it looks like this, but I'm not sure if I'm including everything.

    asked by anonymous on February 7, 2013
  84. Finance

    Your Uncle has two alternative inheritence for you. A. You receive 5000 today and 1000 per year for the next 8 years. or B. 5000 today and nothing each year for the next 7 years and at end of 8th year receive 12,000 Which is best and why. Current interest

    asked by Antoinette on March 18, 2007
  85. college algebra

    Suppose that the Russian population is declining by 0.48% each year, and continues to decline at this rate every year. a.) what is the overall 'growth' factor (really a decline factor) for 40 years of population decline? As a percentage of the current

    asked by danielle on November 17, 2014
  86. Algebra

    In 1994 the life expectancy of males in a certain country was 61.6 years. In 1999, it was 63.8 years. Let E? represent the life expectancy in year t and let t represent the number of years since 1994. 1) The linear function E(t) that fits the data is:

    asked by Mary on April 9, 2010
  87. Algebra

    In 1992, the life expectancy of males in a certain country was 63.8 years. In 1999, it was 66.0 years. Let E represent the life expectancy in year t and let t represent the number of years since 1992. The lineahntthe nearest ter function E(t) that fits the

    asked by Deb on June 12, 2011
  88. Health

    In 2004, which ethnic or racial group was at a lower risk of suicide for people ages 65 or older? A. Asian and Pacific Islanders B. Non-Hispanic Whites C. Non-Hispanic Blacks D. Hispanics

    asked by Anilysa on September 7, 2014
  89. Health

    In 2004, which ethnic or racial group was at a higher risk of suicide for people ages 65 or older? A. Asian and Pacific Islanders B. Non-Hispanic Whites C. Non-Hispanic Blacks D. Hispanics A?

    asked by Night on November 3, 2014
  90. social studies

    Why did the system of feudalism arise during the Middle ages? A:to develop an economic system. B:to determine jobs within a city. C:to defend the countries from attacks. D:to organize the household of noblemen. I think the answer is C. Thank you

    asked by Jamie on September 27, 2017
  91. social studies

    i have another question that i dnt understand. its say::::: explain why german, viking and magyar tribes contributed to the fall of the roman empire... nd the second question is why was feudalism adapted in europe in the middle ages????

    asked by katherine on September 14, 2011
  92. social studies

    We are using the bookjourney across time 9the early ages) pg. 105 no. 22 asks "What advantage did Judah have over Israel? It shows a map the the Israelite kngdom, and I's supposed to answer it with the map. I have noclue. Can anyone help? Thanks.

    asked by Lynn on October 11, 2011
  93. health

    In 2004, which ethnic or racial group was at a lower risk of suicide for people ages 65 or older? A. Hispanics B. Asian and Pacific Islanders C. Non-Hispanic Blacks D. Non-Hispanic Whites c

    asked by heidi on February 14, 2013
  94. Math

    the back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic one day. what is the difference between the age of the oldest patient seen by doctor 1. I don't get it....

    asked by SillyFilly on March 7, 2016
  95. Personal Finance

    1. Joe won a lottery jackpot that will pay him $12,000 each year for the next ten years. If the market interest rates are currently 12%, how much does the lottery have to invest today to pay out this prize to Joe over the next ten years? 2. Mary just

    asked by Sue on October 11, 2008
  96. physics

    blocks 1 and 2 of masses 2 kg and 4kg, respectively, are connected by a light string, as shown above. These blocks are further connected to a block of mass 3kg by another light string that passes overr a pully of negligible mass and friction. Blocks 1 and

    asked by b on November 14, 2012
  97. Math

    Find A �� B, given A = {people who are less than 20 years old} and B = {people who have a job}. A) {people who are less than 20 years old and people who have a job} B) {people who are less than 20 years old and have a job} C) {people who are

    asked by Lisa on March 16, 2010
  98. operations management

    Best Wheels Bicycle Company is looking to automate production of a framing component and will need to purchase new frame fabrication machinery. The company has narrowed the selection to 2 machines that have a useful life of 3 years. The company operates 8

    asked by shelly on February 25, 2011
  99. physics

    I have a question involving the spring costant: A 2-kg block is attached to a horizontal ideal spring with a spring constant of 200N/m. When the spring has its equilibrium length the block is given a speed of 5 m/s. What is the maximum elongation of the

    asked by Diane on November 5, 2006
  100. Algebra

    A light truck is purchased on January 1 at a cost of $19,000. It is expected to serve for five years and have a salvage value of $1,000. Calculate the depreciation expense for the first and third years of the truck's life using the following methods:

    asked by Trish on August 16, 2013