1. cal

    The demand function for a certain make of replacement cartridges for a water purifier is given by the following equation where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. p = -0.01x^2 - 0.3x +

    asked by jane on December 2, 2014
  2. math

    The demand function for a certain make of replacement cartridges for a water purifier is given by the following equation where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. p=-0.01x^2-0.3x+20

    asked by Britney on December 5, 2012
  3. English

    Here is the second part of my rephrase. Hopefully I can send it to you, Writeacher! Thank you. 1) Then he likens both his family and friends to the horses for their shape and disposition (?). Though more civilized and endowed with the gift of speech, they

    asked by Henry2 on February 19, 2012
  4. English

    Ok we have to make an advertisment for my english class and its due monday. Today is friday. any ideas??? How about an advertisement for a book you've enjoyed? You could include a photo of the cover of the book and a couple of lines of praise for it. Ads

    asked by Seinna on August 10, 2007
  5. calculus

    The demand function for a certain make of replacement cartridges for a water purifier is given by the following equation where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. p=-0.01x^2-0.3x+19

    asked by Riley on April 10, 2013
  6. !math (1)

    The demand function for a certain make of replacement cartridges for a water purifier is given by the following equation where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. p = -0.01x^2 - 0.1 x +

    asked by Mia on April 25, 2014
  7. *math (1)

    The demand function for a certain make of replacement cartridges for a water purifier is given by the following equation where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. p = -0.01x^2 - 0.1 x +

    asked by Vanessa on April 23, 2014
  8. calc

    The demand function for a certain make of replacement cartridges for a water purifier is given by the following equation where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. p = -0.01x^2 - 0.3x +

    asked by jane on December 2, 2014
  9. writing

    I am writing a character analysis on "everyday use" by alice walker. I am having trouble with my thesis. This is what I have "Even though Mama loves both of her daughters, she is jealous of Dee’s true characteristics of being strong-minded, educated, and

    asked by tina on May 5, 2010
  10. !math (1)

    The demand function for a certain make of replacement cartridges for a water purifier is given by the following equation where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. p = -0.01x^2 - 0.1 x +

    asked by Vanessa on April 24, 2014
  11. fine arts

    i need to write about the first established female artist, at what point she became recognized, and some of the ways her talents were encouraged throughout her life. first i need to make sure if its Judith Leyster. if it is then i know that her work got

    asked by y912f on January 12, 2009
  12. Brief Calculus

    The demand function for a certain make of replacement cartridges for a water purifier is given by the following equation where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. p = −0.01x2 − 0.3x

    asked by Tiffany on August 3, 2016
  13. History Check Please!

    2. Why were interstate highways initially built? A. to accommodate the increasing number of automobiles B. to make it easier for U.S. citizens to travel from state to state C. to enable the quick movement of troops in case of a nuclear attack D. to allow

    asked by Destielforever on May 2, 2016
  14. Early Childhood Education

    Without any help from adults and because they are curious, many preschoolers explore alphabet letters on their own.​ I think True for this awsner Scribbling on paper involves child decision making.​ I am think false on this one. When painting, children

    asked by Patrick on October 27, 2018
  15. literature

    Which one of the following short stories takes a series of completely ordinary eventsand develops them into a character study? A.''Paul's Case B.''A Private History of a Campaign That Failed'' C.''Young Goodman Brown'' D.''A Pair of Silk Stockings'' Have

    asked by laqueshanice on November 8, 2006
  16. Biochemistry

    Describe the preparation of 2.00 L of 0.100 M glycine buffer, pH 9.0, from glycine and 1.00 M NaOH. a) What mass of glycine is required? The appropriate pKa of glycine is 9.6. b) What volume of 1.00 M NaOH is required? The appropriate pKa of glycine is

    asked by Sam on February 5, 2017
  17. AP calc bc

    A 25-ft ladder rests against a vertical wall. If the bottom of the ladder slides away from the wall at a rate of 0.18 ft/sec, how fast, in ft/sec, is the top of the ladder sliding down the wall, at the instant when the bottom of the ladder is 20 ft from

    asked by Zachary Griner on December 10, 2014
  18. math

    A cyclist leaves his training base for a morning workout, riding at the rate of 18 mph. One hour later, his support staff leaves the base in a car going 45 mph in the same direction. How long will it take the support staff to catch up with the cyclist?

    asked by Anonymous on September 1, 2009
  19. Calculus

    A pole 12 meters long is leaning against a vertical wall of a building. if the foot of the pole is being pulled away from the wall at the rate of 2 meter per minute, how fast is the top of the pole sliding down the wall at the instant when the foot of the

    asked by Faye on October 10, 2017
  20. calculus

    Sand is falling into a conical pile so that the radius of the base of the pile is always equal to one half its altitude. If the sand is falling at the rate of 10 cubic feet per minute, how fast is the altitude of the pile increasing when the pile is 5 feet

    asked by Andrea on February 27, 2016
  21. Calculus

    sand is falling into a conical pile so that the radius of the base of the pile is always equal to one half its altitude. of the sand is falling at the rate of 10 cubic feet per minute, how fast is the altitude of the pile increasing when the pile is 5 feet

    asked by Inkiena on July 2, 2013
  22. physics

    A horizontal pipe 17.00 cm in diameter has a smooth reduction to a pipe 8.50 cm in diameter. If the pressure of the water in the larger pipe is 8.00 104 Pa and the pressure in the smaller pipe is 6.00 104 Pa, at what rate does water flow through the pipes?

    asked by flame on September 27, 2010
  23. Physics

    A block of weight 30.9 N is hanging from a rope. The tension from the rope is pulling upward on the block. The block is accelerating downward at a rate of 1.20 m/s2. What is the magnitude of the tension in the rope? I found the mass of the block to be

    asked by Emily on February 9, 2016
  24. American government

    According to this chart, what is one result of the federal reserve sharply decreasing the discount rate? a. deflation occurs as the economy expands b. deflation occurs as the economy contracts c. inflation occurs as the economy expands******* d. inflatioon

    asked by . on May 10, 2017
  25. math

    Jack and Jill wash a car at the same rate . Working together it takes them an hour and 10 minutes to wash a car. One day jack started washing a car by himself at 2:30 p m. When he was half way done , Jill joined him . What time did they finish washing the

    asked by Jose on November 7, 2012
  26. MATH.... HELP

    Toronto and Vancouver are 3150km apart. A plane cruises at about 850km/hour. At this rate about how long (in hours and minutes) will it take to fly to Vancouver from Toronto? If he left Vancouver at 10:00 am and Toronto is 4 hours ahead of Vancouver what

    asked by Sarahh on November 2, 2012
  27. math

    A board 5 feet long slides down a wall. At the instant the bottom end is 4 feet from the wall, the other end is moving down the wall at a rate of 2 feet per second. At the moment, how fast is the bottom end sliding along the ground?

    asked by Emily on January 8, 2017
  28. Mathss

    Item 20 A bathtub is draining at a constant rate. After 2 minutes, it holds 28 gallons of water. Three minutes later, it holds 7 gallons of water. Write an equation that represents the number y of gallons of water in the tub after x minutes.

    asked by K on December 7, 2017
  29. chemistry

    The rate constant, k, for each reaction order is equal to _____ from the linear plot. Reaction Order Answer zero:___ first: ___ second: ___ a. slope (m) b. y-intercept c. x-intercept d. negative of the slope (-m) e. 0

    asked by jen on May 10, 2012
  30. physics

    the minimum distance that required to stop a car moving at 35.0 mi/h is 40 ft. (a) express this speed and distance in km/h. (b) what is the minimum stoping distance of a car moving at 70 mi/h,assuming the same rate of acceleration?express your answer in

    asked by Thapelo on March 28, 2019
  31. calculus

    A growing boy who is 4 feet tall stands 8 feet from a 12 foot lamp post. The boy is growing at the rate of 3/4 inches per year. How fast is his shadow growing (in inches per year)?

    asked by josh on November 25, 2011
  32. collage algebra

    A worm travels at a rate of 0.4 meters per minute. Let t be the number of minutes spent traveling.a)Find the distance d traveled by the worm as a function of t.b)Find the distance traveled by the worm in 2 minutes.

    asked by bettina on August 4, 2012
  33. physics

    an automobile moving at a constant velocity of 50 ft/sec passes a gasoline station. 3 sec later, another automobile leaves the gasoline station and accelerates at the constant rate of 6.5 ft/sec2. how soon will the second automobile overtake the first?

    asked by che_scarlet on November 14, 2010
  34. Calculus

    A baseball player hits a baseball from home base towards second base with a velocity of 90 feet/second. At that same moment, he runs from home base towards first base at 30 feet/second. Find the rate of change of the distance between him and the baseball

    asked by Nick on October 27, 2015
  35. chemistry

    Glass A has a composition of 90% SiO2 - 10% Na2O. Glass B has a composition of 99% SiO2 - 1% Na2O. Both glasses are cooled to room temperature at the same rate. (a) Which glass has the higher Tg? Glass A Glass B (b) Which glass has the lower free volume?

    asked by Anonymous on April 26, 2013
  36. Chemistry

    What is the order of the reaction for the following reaction and for each reagent given? A + 2B + C --> productions Experiment / A / B / C / rate 1 / 0.002 / 0.15 / 0.132 / 0.0057 2 / 0.002 / 0.25 / 0.132 / 0.0158 3 / 0.003 / 0.15 / 0.132 / 0.0114 4 /

    asked by Devin on September 13, 2015
  37. Science**updated asnwers**

    5.B 6.A 7.C 8.D 9.A 11.D 13.D 5. Which of the following types of pollution cannot be attributed to car and truck emissions? A. acid rain B. sedimentation C. ozone D. photochemical smog 6. Which of the following is a source of photochemical smog? A. fossil

    asked by matt on March 21, 2014
  38. Physics

    A 350 N child is in a swing that is attached to a 7.50 m long rope. find the gravitational potential energy associated with the child relative to her lowest position when a) the ropes are horizontal, (b) the ropes make a 30 degree angle with the vertical,

    asked by B on September 30, 2012
  39. physics

    A novice golfer on the green takes three strokes to sink the ball. The successive displacements are 4.00m north, 2.00m northeast, and 1.00m at 30.0 degrees west of south starting at the same initial point, an golfer could make the hole in what single

    asked by joe on January 17, 2011
  40. teaching in early childhood programs

    A teacher notices that the children have created a block town that includes a simple pyramid. The teacher points out the pyramid and talks with them about it, and then encourages them to make more of them. The teacher is employing A. problem solving. B.

    asked by Diana on September 7, 2014
  41. Physics

    A father pulls his son, whos mass is 25 kg and who is sitting on a swing with ropes of length 3 meters, backward until the ropes make an angle of 33.6 degrees with respect to the vertical. He then releases his son from rest. What is the speed of the son at

    asked by Khalid on December 18, 2015
  42. Biology

    You wish to produce a human enzyme, protein A, by introducing its gene into bacteria. The genetically engineered bacteria make large amounts of protein A, but it is in the form of an insoluble aggregate with no enzymatic activity. Which of the following

    asked by Amanda on October 10, 2013
  43. HCP 220 (pharmaceutical calculations)

    "If you were compiling a pharmaceutical calculation training manual to assist new pharmacy technicians, what two (2) best practices would you emphasize that you learned in this course? Explain your answer."(-assignment) My question is: I am just wondering

    asked by Corina on June 20, 2011
  44. statistic

    Of all mortgage foreclosures in the United States, 50% are caused by disability. People who are injured or ill cannot work--they then lose their jobs and thus their incomes. With no income, they cannot make their mortgage payment and the bank forecloses.

    asked by Anonymous on November 10, 2015
  45. English

    1. What do you do? - I am a student. 2. What does your father do? - He is an architect. 3. What does your mother do? - She is an accountant. 4. What do you want to be in the future? - I want to be a pharmacist. 5. Why do you want to be a pharmacist? - I

    asked by rfvv on October 23, 2012
  46. English

    I need help thinking of something to put on my poster board for an archetypal journey project over Their Eyes Were Watching God. I want a creative poster with something symbolic on it that represents the novel. If you read it you will know how and why she

    asked by Anonymous on May 13, 2007
  47. Painting

    why did painter meissonier place napoleon at the front and center of this art work? The Walters Art museum Baltimore. A. To show his small size B. To show his central importance C. To show his entire figure D. To make wise use of space•• Correct this

    asked by Tia on February 19, 2016
  48. Language Arts

    For a book report, we are doing a "subamarine sandwich". One part is scene illustration - reflective of plot. I don't know how to do this part. Choose a part of the book that brings the most vivid images into you mind. Then you can ~~draw it ~~paint it

    asked by Lynnette on February 1, 2007
  49. science

    "Reproductive cells and somatic cells are not separated early in development, as they are in animals。 Instead, plant somatic cells that have undergone many rounds of mitosis can undergo meiosis and produce gametes." This is said in my notes under

    asked by Jane on February 2, 2013
  50. Physics

    A car whose speed is 90.0 km/h (25 m/s) rounds a curve 180 m in radius that is properly banked for speed of 45 km/h (12.5 m/s). Find the minimum coefficient of friction between tires and road that will permit the car to make a turn. What will happen to the

    asked by TJR on August 15, 2012
  51. Math

    Yolando Bravo wants to make the following deposit: 1 20 dollar bill 3 5 dollar bills 4 1 dollar bills 7 quarters 6 dimes 8 nickels 64 pennies 1 paycheck for $328.92 1 refund check for %18.95 i try to do this i been stuck on this problem all freaking day

    asked by Tia on February 29, 2012
  52. Physics

    A father pulls his son, whos mass is 25 kg and who is sitting on a swing with ropes of length 3 meters, backward until the ropes make an angle of 33.6 degrees with respect to the vertical. He then releases his son from rest. What is the speed of the son at

    asked by Khalid on December 17, 2015
  53. Government Check

    Which of the following is NOT a reason why the Framers opposed direct democracy? =a.)They thought direct democracy is impractical in large countries like the United States. b.)They did not believe in consent of the governed. c.)They did not trust the

    asked by Ariel on June 28, 2010
  54. SCI 275

    I need help on my assignment that is due by 12midnight. It is now 8:12pm here. It is on Risk Assignment: Risk Assessment You are a member of the Genericville City Council. A proposal has been brought forth to use the insecticide spray, Malathion.

    asked by Sharon on December 19, 2010
  55. math STEVE

    Mr. Corbin is a salesman. He gets a 5% commission on all sales between $100 and $500 and a 10% commission on all sales above $500. His commission on sales of $783 was:

    asked by Sharon on August 19, 2014
  56. algebra

    Together, Jared's age and his grandfather's age total 100. But Jared's grandfather is 70 years older than him. How old is Jared's grandfather?

    asked by tim on May 3, 2010
  57. 3rd garde math

    seth bikes 3 miles in 10 minutes and 30 miles in 100 minutes. How many miles does seth bike in 1000 minutes

    asked by Anonymous on March 4, 2015
  58. Physics

    if T = 2π√l/g and L = 100±0.1cm(limit standard error), T=2.01±0.01s(limit standard error). Calculate the value of getting and it's standard error

    asked by Noma on March 6, 2019
  59. maths

    if Catherine gets 100 free minutes on her cellphone each month;how many free minutes will she have in 8 months 2:how many free minutes will she have in x months

    asked by dimpho on August 25, 2015
  60. 9th grade Math

    Tittle: Police Officer Salary: $3,142/month Average work hours per week:40 School Loan:$15,000 Responsible for patrolling an assigned area to prevent and discover crime and to enforce regulations.Duties may include:conducting investigations,making

    asked by Ashley on November 5, 2009
  61. Maths

    A company is planning to manufacture and sell a new headphone set. After conducting extensive market surveys, the research department provide the following estimates: Marginal costs function: c^' (x)=RM(40+0.4x) where x is the quantity sold for the fixed

    asked by Trina on October 18, 2016
  62. physics

    One kg of water is moving 2 m/s as it goes over a dam. At the base of the dam, 13m below, how fast is that water going if air friction can be neglected? (ans: 16.25m/s) B: if the water does not go straight over the dam, but instead goes through the

    asked by Kadyn on March 5, 2008
  63. Math Financa

    Stock in Country Road Industries has a beta of 0.8940. The market risk premium is 8.7 percent, and T-bills are currently yielding 4.8 percent. The company's most recent dividend was $1.8 per share, and dividends are expected to grow at a 5 percent annual

    asked by George on November 26, 2010
  64. Mathematics

    A family wants to begin saviving for a trip to paris. The trip is planned for 3 years from now, and the family wants to accumulate one million shillings for the trip, if twelve deposits are made quartely to an account which earns interest at the rate of 8

    asked by Mesh on November 17, 2015
  65. Environmental engineering

    (10 Points) A contractor is trying to estimate the distance to be expected of a drawdown of 4.81 m from a pumping well under the following conditions: Pumping rate = 0.0280 cubic meter per seconds Pumping time = 1066 d Drawdown in observation well = 9.52 m

    asked by Jazmin on February 23, 2011
  66. PHYSICS

    A 578 Newton person takes an elevator from the first floor to the second floor of a building. The elevator quickly accelerates at a rate of 1.1 m/s^2 and then moves at a constant speed. Find the passenger's apparent weight during this period of

    asked by GRISSELL on February 5, 2012
  67. math

    A man was injured in an accident at work he receives a disability grant of R4800 in the first year. This grant increases with a fixes amount each year.. a). What is the annual increase if over 20 years he would have received a total of R143500 b). His

    asked by Restoration on January 27, 2015
  68. Algebra

    Your monthly commission as an appliance sales person is represented by the equation, S = 50x+450, where 50 is the rate paid for each appliance sold, x is the number of appliances sold, 450 is the base pay per month, and S is the salary. Complete the

    asked by Kevin on February 10, 2014
  69. Macroeconomics

    An economy is facing the recessionary gap shown in the accompanying diagram. To eliminate the gap, should the central bank use expansionary or contractionary monetary policy? How will the interest rate, investment spending, consumer spending, real GDP, and

    asked by Yzenetra Adams on March 4, 2010
  70. math

    i need help! my last math question cant figure out! whats the rule for input 3 output 9 input 4 output 16 input blank output 25 input 6 output blank input 10 output 100, thank you been stuck for over 30 minutes!!!!

    asked by lillie on May 22, 2013
  71. math

    Which of the following sets contains 3 irrational numbers ? a. { square root of 120 , pie , square root of 3 } b. {neg. square root of 256 , 1/9 , 1/12} c. {3.14 , -47 , 100} d. {pie , square root of 0.36 , square root of 121

    asked by hellooo kitty on April 18, 2016
  72. math

    Which of the following sets contains 3 irrational numbers ? a. { square root of 120 , pie , square root of 3 } b. {neg. square root of 256 , 1/9 , 1/12} c. {3.14 , -47 , 100} d. {pie , square root of 0.36 , square root of 121}*

    asked by Help please on April 18, 2016
  73. Science

    Can anyone help me find the half-life of strontium-90? I also need an explanation on how to do it. Thanks!! Radioactive Decay of Strontium-90: At 0 years: 100% remaining At 28 years: 50% remaining At 56 years: 25% remaining At 84 years: 10% remaining At

    asked by Jane on March 12, 2015
  74. economics

    Tom plans to gamble each year for the next 20 years, starting at at the end of year 1. If he loses 4.47 dollars in odd years (i.e., years 1, 3, 5, etc) and wins 7.46 dollars in even years (i.e., years 2,4, 6 etc), what will be Tom's (internal) rate of

    asked by Rachel on April 17, 2011
  75. History

    Between 1935 and 1975, a period that included Worl War II, the birth rate rose from 16.9 to 25 per 1000 people. what was the most likely cause of this baby boom? a) the change in view toward artificial birth control methods b) the exxpansion of the middle

    asked by Nathaly on May 1, 2008
  76. Algebra 1

    ok, no one has helped me with it the first time, let's see if this time is successful. Jilian wants to buy candles in case her electricity and furnace fail. Each candle she plans to use, burns at a rate of 5mL of wax per 15 min. One of these candles has a

    asked by Elizabeth on January 17, 2008
  77. pharmacy calculations

    prepare 500 ml of a 1:5 solution using a 1:10 solution and a 1:4n solution. what quantities will be used of each stock solution to make the 1:5 solution?

    asked by cleondra on August 3, 2012
  78. pharmacy tech.

    Prepare 500ml of a 1:5 solution using a 1:10 solution and a 1:4 solution. What quantities will be used of each stock solution to make the 1:5 solution?

    asked by blackpearl07 on August 5, 2012
  79. math

    if john had an unpaid balance of $1,854.80 on his credit card statement at the beginning of the month and he made a payment of $45.00. If the interest rate of john's card wasw 2.5% on the unpaid balance per month. find the finance charge and the new

    asked by kk on September 9, 2011
  80. Physics

    A speeding motorists passes a stopped police car. At the moment he passes, the police car begins accelerating at a constant rate of 4.4 m/s^2. The motorist unaware that he is being chased, continues at a constant speed until the police car catches him 12s

    asked by Bob on August 23, 2015
  81. Macroeconomics

    Between 1968 and 1980, the US economy experienced a slowdown in productivity growth. However, since the mid 1980s, economy has experienced increased in the growth rate in productivity. Can you give reasons why US productivity growth started to increase

    asked by Sara on June 14, 2010
  82. Science

    Four students dissolved 30g of salt in a 200ml solution of water.Each student heated his or her water solution to a different temperature ( Marcus had 10 and tyra had 25 Luis had 50 and Andrew had 75) which student most likely had the solution with the

    asked by Kate on November 8, 2016
  83. Macroeconomics

    Between 1968 and 1980, the US economy experienced a slowdown in productivity growth. However, since the mid 1980s, the economy has experienced increases in the growth rate in productivity. Can you give reasons why US productivity growth started to increase

    asked by Sara on July 6, 2008
  84. macroenconomics

    Between 1968 and 1980, the US economy experienced a slowdown in productivity growth. However, since the mid 1980s, the economy has experienced increases in the growth rate in productivity. Can you give reasons why US productivity growth started to increase

    asked by Ismael on March 27, 2010
  85. my college essay part one

    1. Academic preparation: How have you taken advantage of the educational opportunities you have had to prepare for college? I have taken advantage of the many great opportunities in my education to grow as a student and, most importantly, as a person. I

    asked by Anonymous on November 7, 2006
  86. Physics Help!

    The Fly wheel has a small magnet of mass M mounted on it. Each time the magnet passes the coil, a voltage pulse is generated , which is passes to the c.r.o the display of the c.r.o is 10 cm wide . The flywheel is rotating at a rate of about 3000

    asked by Ariana on September 11, 2014
  87. U.S. and Global Economics

    An online store that has been successfully growing on its initial angel investment and revenues wants to invest $5 million to expand the business. The bank is willing to lend the business this money at a 10 percent interest rate over an eight-year term.

    asked by Mary on November 11, 2013
  88. Writing Sources

    I am trying to prove why I think parents having a child reduces their rate of commiting a crime. My basic reasoning is that most parents love their new child and start to realize that they need to better their life in order for their childeren to have the

    asked by Rebekah on October 26, 2017
  89. College chemistry

    A farmer applies 13.50 kg of a fertilizer that contains 10.0% nitrogen to his fields each year. Fifteen (15.0%) percent of the fertilizer washes into a river that runs through the farm. If the river flows at an average rate of 0.265 cubic feet per second.

    asked by Unknown on January 22, 2013
  90. math

    Vicki is contemplating consolidating her federal student loans with Loan Consolidation Experts Inc. She currently pays five separate federal loans totaling $30,000 in principal at 4.5% simple interest for 20 years. Loan Consolidation Experts Inc. is

    asked by kelly on February 25, 2013
  91. math

    Vicki is contemplating consolidating her federal student loans with Loan Consolidation Experts Inc. She currently pays five separate federal loans totaling $30,000 in principal at 4.5% simple interest for 20 years. Loan Consolidation Experts Inc. is

    asked by kelly on February 25, 2013
  92. chemistry

    HOF-->HF + 1/2O2(oxygen) Half life: 30 minutes If the partial pressure of HOF in a 1.00 L flask is initially 100 mm Hg at 25C, what is the total pressure in the flask and the partial pressure of HOF after exactly 30 minutes?

    asked by Anonymous on March 31, 2010
  93. physics

    A 15.4g bullet traveling at 270 m/s is fired into a 0.488kg wooden block anchored to a 100 N/m spring. How far is the spring compressed? x_{compressed} = If the speed of the bullet is not known but it is observed that the spring is compressed 43.9 cm, what

    asked by george on April 14, 2014
  94. algebra

    how would you solve this; Write an equation for the hyperbola with vertices (-10,1) and (6,1) and foci (-12,1)and (8,1) The centre is the midpoint between the vertices, which is ((-10+6)/2,(1+1)/2) or (-2,1) so the equation looks like (x+2)^2/a^2 -

    asked by Marissa on August 19, 2007
  95. Chemistry

    100 ml of 15 g/L silver nitrate reacts with an unknown concentration solution of copper (ll) chloride. the reaction for me only 2 grams of silver (l) chloride. If 75 mL of the copper (ll) chloride solution was mixed in, what is the initial concentration of

    asked by Hannah on March 23, 2015
  96. algebra

    The frequency of oscillations of a pendulum varies inversely as the square root of the length of the pendulum. If a pendulum of length 25 feet oscillates with a frequency of 100 swings per minute, what would be the frequency of a pendulum of length 16

    asked by Felix on April 11, 2019
  97. Science

    a train takes 5 minutes to cover a distance of 3 km between two stations p and q . Starting from rest at p , it accelerate at a constant rate to a speed 40 km/h and maintain this speed untill it is brought to rest at q . If train takes 3 times as long to

    asked by Anonymous on July 7, 2017
  98. science

    A 1000kg rocket is set vertically on its launching pad. The propellent is expelled at the rate of 2kg/s. Find the minimum velocity of the exhaust gases so that rocket just begin to rise. Also find rocket's velocity 10second after ignition, assuming the

    asked by swastik on June 10, 2016
  99. Calculus

    A rectangular swimming pool is 8 m wide and 20 m long. Its bottom is a sloping plane, the depth increasing from 1 m at the shallow end to 3 m at the deep end. Water is draining out of the pool at a rate of 1 m3/min. How fast is the surface of the water

    asked by Po on November 15, 2016
  100. Physics

    a train takes 5 minutes to cover a distance of 3 km between two stations p and q . Starting from rest at p , it accelerate at a constant rate to a speed 40 km/h and maintain this speed untill it is brought to rest at q . If train takes 3 times as long to

    asked by Anver on July 7, 2017

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