1. algebra A055,

    World Records in the 1500-m Run. The formula R = -0.075t + 3.85 can be used to predict the world record in the 1500-m run t years after 1930. Determine (in terms of an inequality) those years for which the world record will be less than 3.5 min. { Y l Y >

    asked by martin on June 2, 2015
  2. Stats and Data

    Suppose that either of two instruments might be used for making a certain measurement. Instrument 1 yields a measurement whose p.d.f. is f1(x)=2x, 0

    asked by Salman on December 2, 2010
  3. chemistry

    Consider the following reaction. SO3(g) + H2O(l) → H2SO4(aq) A chemist allows 60.9 g of SO3 and 11.1 g of H2O to react. When the reaction is finished, the chemist collects 54.4 g of H2SO4. Determine the limiting reactant, theoretical yield, and percent

    asked by Jena on March 20, 2015
  4. fluid

    a tap discharge water evenly in a jet at a velocity of 2.6 m/s at the tap outlet, the diameter of the jet at this point being 15 mm. the jet flows down vertically in a smooth stream. determine the velocity and the diameter of the jet at 0.6 m below the tap

    asked by nono on December 23, 2013
  5. Math

    Suppose that either of two instruments might be used for making a certain measurement. Instrument 1 yields a measurement whose p.d.f. is f1(x)=2x, 0

    asked by Salman on December 2, 2010
  6. Math

    to determine the number of catfish in a pond, a game warden catches 131 catfish, tags them and throws them back into the pond. later, 20 catfish are caught, 10 of them are tagged. How many catfish would the game warden expect to be in the pond? 131/10 20/x

    asked by Kayla on June 15, 2015
  7. Math

    There are three landscapers that are instructed to prune a tree. One of them alone can complete the task in 30 minutes, another is twice as fast as the first landscaper, and the thrid is a quarter as fast as the first two landscapers working together.

    asked by Kelly on October 15, 2007
  8. Maths

    Suppose that either of two instruments might be used for making a certain measurement. Instrument 1 yields a measurement whose p.d.f. is f1(x)=2x, 0

    asked by Salman on December 2, 2010
  9. algebra A055,

    World Records in the 1500-m Run. The formula R = -0.075t + 3.85 can be used to predict the world record in the 1500-m run t years after 1930. Determine (in terms of an inequality) those years for which the world record will be less than 3.5 min. { Y l Y >

    asked by martin on June 2, 2015
  10. Statistics

    According to a recent survey, 75% of all customers will return to the same grocery store. Suppose 8 customers are selected at random: A) What is the probability that exactly five of the customers will return? B) What is the profability that all 8 will

    asked by Maria B on March 16, 2011
  11. Business

    If the firm’s beginning cash balance for the budget period is $7,000, and this is its desired minimum balance, determine when and how much the firm will need to borrow during the budget period. The firm has a $50,000 line of credit with its bank, with

    asked by kim on October 19, 2014
  12. Physics

    A platform rotates at an angular speed of 2.2 rad/s. A block rests on this platform a distance of 0.3m from the axis. (friction coefficient .5) Without any external torgue acting on the system, the block is moved toward the axis. Ignore the moment of

    asked by Lola on May 5, 2010
  13. chemistry

    a. A 0.1 molal solution of a weak monoprotic acid was found to depress the freezing point of water 0.1930C. Determine the Ka of the acid. You can assume 0.1 molal and 0.1 molar are equivalent. b. 100 ml of a 0.1M solution of the above acid is titrated with

    asked by billy on February 12, 2012
  14. Physics

    A block of mass m1=1.6kg, initially moving to the right with a velocity of +4m/s on a frictionless horizontal track, colides with a massless spring attached to a second block of m2=2.1kg moving left with a velocity of -2.5m/s. The spring constant is 600

    asked by Andrea on June 5, 2013
  15. Physics

    Water flows from a fire truck through a hose that is 11.7 cm in diameter and has a nozzle that is 2.0 cm in diameter. The firemen stand on a hill 5.0 m above the level of the truck. When the water leaves the nozzle, it has a speed of 20.0 m/s. 1) Determine

    asked by Al on April 10, 2017
  16. Calculus

    Say we want to determine how many people we can invite to a party for a given budget ($ input). We want one snack and one soda for each person. The snack cost is $1 and the soda cost is $1 per can for $2 total. Write a function that outputs how many people

    asked by Jada on March 5, 2011
  17. algebra

    Note: Remember to show all of the steps that you use to solve the problem. You have $59.95 in your wallet and want to buy some new CDs. If the CDs are $11.99 each, what number of CDs, x, can you buy? Write and solve an inequality. (2 points) *Step 1:

    asked by unknown on January 11, 2016
  18. English

    I left out a few things. Thank you very much for helping me. 1) Amnesty works by collecting information. When it has a proof that a person is a 'Prisoner of Conscience', then a person's case is handed over to a local group. Question: Amnesty gathers

    asked by Matthew on April 14, 2012
  19. Math, Analytic Geometry

    Derek wants to determine the height of the top of the backboard on the basketball goal at the playground. He places a standard 12-inch ruler next to the goal post and measures the shadow of the ruler and the backboard. If the ruler has a shadow of 10

    asked by Kniasia on March 3, 2015
  20. calculus-can someone please help me with this ques

    I have two questions if someone can PLEASE help. 1.solve the equation in the real number system. x^4+11x^3+24x^2-23x+35=0 **Please show work** 2.Use the remainder theorem to find the remainder. When f(x)is divided by x-3. Then use the factor theorem to

    asked by Jennifer on December 30, 2012
  21. Math/Science

    Three bullets are fired simultaneously by three guns aimed toward the center of a circle where the bullets mash into a stationary lump. The angle between the guns is 120°. Two of the bullets have a mass of 9.30 10-3 kg and are fired with a speed of 440

    asked by Anonymous on October 19, 2014
  22. Finance

    Suppose that 1 year later, NTT's common stock is selling for $75 per share. During the 1-year period, NTT paid $4 commons stock dividend. Determine the realized (ex-post) percentage holding period return on NTT common stock. What if it was sold for $58 1

    asked by Greatdanelola on September 21, 2008
  23. chemistry help

    Determine the number of moles of each specified atom or ion in the given samples of the following compunds.( Hint: the formula tells you how many atoms or ions are in each molecule of formula unit.) a. O atom in 3.161x10^21 molecules of CO2 b. C atom in

    asked by jaz on March 8, 2009
  24. physics

    Two flat surfaces are exposed to a uniform, horizontal magnetic field of magnitude 0.50 T. When viewed edge-on, the first surface is tilted at an angle of 11° from the horizontal, and a net magnetic flux of 8.20 10-3 Wb passes through it. The same net

    asked by Anonymous on February 9, 2012
  25. geometery

    please walk me through this I am having a hard time with this A survey of 500 showed the following 15 had only camping 20 had only hiking trails 35 had only picnicking 185 had camping 140 had camping and hiking trails 125 had camping and picnicking 210 had

    asked by carol on January 21, 2013
  26. AP physics

    A water skier, moving at a speed of 8.61 m/s, is being pulled by a tow rope that makes an angle of 34.9 ° with respect to the velocity of the boat. The tow rope is parallel to the water. The skier is moving in the same direction as the boat. If the

    asked by Johnny on February 18, 2011
  27. chem

    determine the osmotic pressure of the solution at STP. (Assume these solutions behave ideally.) a)0.116 mol fraction glucose (C6H12O6) in water (Assume the density of the solution is 1.02 g/mL.) b)0.0948 mol fraction NaCl in water (Assume the density of

    asked by Rukky on January 26, 2011
  28. physic

    A 22.2 kg mass attached to a spring scale rests on a smooth, horizontal surface. The spring scale, attached to the front end of a boxcar, reads T 44.1 N when the car is in motion. If the sring scale reads zero when the car is at rest, determine te

    asked by Anonymous on September 12, 2014
  29. Math

    Derek wants to determine the height of the top of the backboard on the basketball goal at the playground. He places a standard 12-inch ruler next to the goal post and measures the shadow of the ruler and the backboard. If the ruler has a shadow of 10

    asked by Jae on March 30, 2012
  30. Chemistry

    0.717 g of a compound containing carbon, hydrogen, and oxygen is burned and found to produce 1.02 g CO2 and 0.624 g H2O. The molar mass of the compound is 124 g/mol. (a) Write a chemical equation for the combustion of this unknown hydrocarbon. (b)

    asked by Anonymous on August 24, 2011
  31. Chemistry

    Nitric oxide (NO) reacts with molecular oxygen as follows: 2NO(g) + O2(g) ¨ 2NO2(g) Initially NO and O2 are separated as shown below. When the valve is opened, the reaction quickly goes to completion. Determine what gases remain at the end of the

    asked by Sarah on October 31, 2010
  32. Chemistry HELP!!!!

    Nitric oxide (NO) reacts with molecular oxygen as follows: 2NO(g) + O2(g) ¨ 2NO2(g) Initially NO and O2 are separated as shown below. When the valve is opened, the reaction quickly goes to completion. Determine what gases remain at the end of the

    asked by mia on October 31, 2010
  33. Physics

    A person must move two heavy packages over a surface level so they place a 20kg package over a 30kg package and decide to move them together. The coefficient of kinetic friction between the lower package and the ground is 0.3. The person exerts a force of

    asked by Alex on April 2, 2008
  34. Physics

    A person must move two heavy packages over a surface level so they place a 20kg package over a 30kg package and decide to move them together. The coefficient of kinetic friction between the lower package and the ground is 0.3. The person exerts a force of

    asked by Alex on April 2, 2008
  35. science please help asap

    1. A 2. A body with a mass of 490kg is pulled along a horizontal plane at a constant velocity.the pulling force is 1.2 kN is making an angle of 20degrees with the plane. A.determine the coefficient of friction 3.a force of 318.123N accelerates a car at

    asked by Buhle on February 26, 2015
  36. algebra

    One elegant hotel has a grand dining room. Each of the room’s three walls facing the gardens contains 8 insulated windows. The dimensions of the window are shown. When the windows were insulated, a glaze was appplied to the exterior face to seal each

    asked by please help ms sue on December 18, 2018
  37. science/chemistry

    HELP,HELP,HELP,HELP How can you tell that cobalt(II) iodide is binary ionic compound formed by a transition metal with more than ionic charge? Thanx in Advance form jeff Cobalt(II) chloride tells you it is binary (composed of two different atoms), cobalt

    asked by Jeff on January 5, 2007
  38. Education technology

    Read the following scenario and determine the willing participant. Eboni’s friend, Margo, was eager to tell her about the new friend she met online. She began chatting with Aaron on a social networking website and found out that they had a lot in common.

    asked by Bryan on May 6, 2016
  39. math

    The CN Tower in Toronto, Canada, is the tallest free-standing structure in North America. A woman on the observation deck, 1150 ft above the ground, wants to determine the distance between two landmarks on the ground below. She observes that the angle

    asked by Anonymous on October 23, 2013
  40. Algebra

    If x pounds of cashews valued at $6.00 per pound are to be mixed with y pounds of peanuts valued at $4.00 per pound to obtain a 40 pound cashew-peanut mixture. Find x and y so that when the mix is sold for $4.75 per pound, the same amount of revenue is

    asked by Shay on October 13, 2016
  41. Pre-Calc

    The CN Tower in Toronto, Canada, is the tallest free-standing structure in North America. A woman on the observation deck, 1150 ft above the ground, wants to determine the distance between two landmarks on the ground below. She observes that the angle

    asked by Susan on November 19, 2015
  42. Physics

    One end of a uniform 3.20-m-long rod of weight Fg is supported by a cable at an angle of θ = 37° with the rod. The other end rests against the wall, where it is held by friction as shown in the figure below. The coefficient of static friction between the

    asked by Joe on April 5, 2014
  43. statistics check my answers please

    1)A nutritionist wants to study the effect of storage time (6, 12, and 18 months) on the amount of vitamin C present in freeze dried fruit when stored for these lengths of time. Vitamin C is measured in milligrams per 100 milligrams of fruit. Six fruit

    asked by Anonymous on November 16, 2006
  44. PHYSICS PLEASE HELP

    A large balloon of mass 237 kg is filled with helium gas until its volume is 318 m3. Assume the density of air is 1.29 kg/m3 and the density of helium is 0.179 kg/m3. (b) Calculate the buoyant force acting on the balloon. ____________N (c) Find the net

    asked by AMY on November 8, 2012
  45. Chemistry

    In each of the following, determine how much solute (in g or mL) must be added to the correct quantity of water to make the given amount of solution at the correct concentration. a)KI to make 50.0mL of a 0.50 M solutioon b)12.0 M HCL to make 500 mL of a

    asked by Kim on May 2, 2010
  46. MATH HELP!

    Help with any of these would be greatly appreciated! THANK YOU! 2. How would i determine the values of 'k' if the graph y=2x^2-2x+3k intersects the x-axis at two distinct points? 3. The path of a basketball can be modeled by the equation h(d)=-0.13d^2+d+2.

    asked by Rachel on July 24, 2008
  47. Algebra

    How can you determine if a polynomial is the difference of two squares? I think that if the polynomial is x^2-64 that this is a polynomial that is a difference of two squares because if you factor it out you would get (x+8)(x-8). If the 64 in my example

    asked by Laura on August 30, 2008
  48. Algebra

    Over 350 students took a college calculus final exam. the scores of the students follow a normal distribution. using the information given below, determine the mean and the standard deviation for the students'scores. Give your answers to the nearest tenth

    asked by Stephanie on December 27, 2015
  49. Physics

    A superhero flies 235 m from the top of a tall building at an angle of 25  below the horizontal. What is the horizontal component of the superhero’s displacement? Draw the vectors to scale on a graph to determine the answer. Answer in units of m Your

    asked by Crystal on September 30, 2012
  50. physics

    A water bed has dimensions of 1.83mx1.86mx.238m. The floor of the bed room will tolerate an additional weight of no more than 6660N. Find the weight of the water in the bed and determine whether it should be purchased. The weight of the water in the water

    asked by CJ on April 7, 2007
  51. Engineering

    A 10.0 Kg block is released from point A in the figure below. The block travels along a smooth frictionless track. It makes a collision with stationary 10 kg ball. The ball moves forward with speed of 2 m/s. a) What is the speed of the block at point C? b)

    asked by Ahmed on June 7, 2013
  52. math 12 - sequences and series

    Given the expression Sn = n^2 + 2n for the sume of the first n terms of a series, determine a) An expression, in simplified form, for Sn-1 in tmers of n b) an expression, in simplified form, for the nth terms, tn in terms of n

    asked by CL on March 1, 2010
  53. Calculus

    Let f(x)=−x^4−8^x3+5^x+2. Find the open intervals on which f is concave up (down). Then determine the x-coordinates of all inflection points of f. 1. f is concave up on the intervals 2. f is concave down on the intervals 3. The inflection points occur

    asked by Emily on March 20, 2015
  54. MATHS TRIGONOMETRY

    if 3sin theta =2 and cos greater than 0,with the aid of a diagram determine the value of: a) tan theta b) sin theta/cos theta c) sin^2 theta + cos^2 theta

    asked by LERATO VINJWA on May 23, 2016
  55. calculus

    Let f (x) = x^2 + 5x-14. Find the open intervals on which f is concave up (down). Then determine the xcoordinates of all inflection points of f 1. f is concave up on the intervals 2. f is concave down on the intervals 3. The inflection points occur at x

    asked by Mandy on March 19, 2012
  56. calculus

    Let f (x) =7x-5/x+3 . Find the open intervals on which f is concave up (down). Then determine the xcoordinates of all inflection points of f . 1. f is concave up on the intervals 2. f is concave down on the intervals 3. The inflection points occur at x =

    asked by Ting on March 19, 2012
  57. LANG

    Determine whether the definition below is a direct definition or an indirect definition. chick: a young woman A. direct definition B. indirect definition I GOT B

    asked by kesha on February 18, 2012
  58. Math

    Determine the digits of Y from these clues. The digits of Y add to 18. The first digit is 3 times the third digit. The second digit is 2 times the third digit. Y is a three digit number.

    asked by bob on June 18, 2013
  59. math

    Determine the seating capacity of an auditorium with 10 rows of seats if there are 10 seats in the first row, 16 seats in the second row, 22 seats in the third row, 28 seats in the forth row, and so on ???

    asked by Ellie on October 25, 2009
  60. Chemisrty

    Identify the type of question. Is it a literature research question, observation only question, demonstration question, or investigation question? How would you determine the PH of vinegar using cabbage juice as an indicator? (investigation) Do germaniting

    asked by Anonymous on September 14, 2015
  61. statistics

    Imagine that you are interested in whether there is a relationship between the amount of coffee people drink and the number of hours they sleep each night. Determine whether you expect a positive or a negative relationship between the cups of coffee people

    asked by Beverly on February 13, 2012
  62. physics

    A plane flies from base camp to Lake A, 220 km away in the direction 20.0° north of east. After dropping off supplies it flies to Lake B, which is 150 km at 30.0° west of north from Lake A. Graphically determine the distance and direction from Lake B to

    asked by carlton on September 12, 2012
  63. math

    The a hollow cylinder. The internal and external radii are estimated to be 6 cm and 8 cm respectively, to the nearest whole number. The height of the cylinder is exactly 14 cm. (a) Determine the exactly values for internal and external radii which give

    asked by Kudu on February 7, 2015
  64. AP Biology

    My F1 generation gave me 30 males (5 were mutated) and 10 females 5 were mutated. My F2 generation gave me 50 males, 20 were mutated, and 30 females, 15 were mutated. I don’t know how to determine my crosses identifying if its sex linked or autosomal and

    asked by Manuel on January 1, 2009
  65. physics

    Two point charges are fixed on the y axis: a negative point charge q1 = -22 µC at y1 = +0.24 m and a positive point charge q2 at y2 = +0.37 m. A third point charge q = +7.7 µC is fixed at the origin. The net electrostatic force exerted on the charge q by

    asked by michelle on January 6, 2011
  66. physics

    Two point charges are fixed on the y axis: a negative point charge q1 = -26 μC at y1 = +0.17 m and a positive point charge q2 at y2 = +0.35 m. A third point charge q = +9.5 μC is fixed at the origin. The net electrostatic force exerted on the charge q by

    asked by namabia on November 19, 2014
  67. Physics

    Two point charges are fixed on the y axis: a negative point charge q1 = -26 µC at y1 = +0.21 m and a positive point charge q2 at y2 = +0.38 m. A third point charge q = +8.5 µC is fixed at the origin. The net electrostatic force exerted on the charge q by

    asked by Anne on January 24, 2012
  68. Physics

    Two point charges are fixed on the y axis: a negative point charge q1 = -26 µC at y1 = +0.21 m and a positive point charge q2 at y2 = +0.30 m. A third point charge q = +8.5 µC is fixed at the origin. The net electrostatic force exerted on the charge q by

    asked by Sarah on September 6, 2013
  69. Math

    A picture must be hung on a wall were the distance from the floor to ceiling is 8 feet. The center of the picture mist be 5 1/4 feet from the floor. Determine the distance from the ceiling to the top of the picture frame How do I do this solve this?

    asked by Ld on January 20, 2013
  70. Physics

    Two point charges are fixed on the y axis: a negative point charge q1 = -26 µC at y1 = +0.21 m and a positive point charge q2 at y2 = +0.38 m. A third point charge q = +8.5 µC is fixed at the origin. The net electrostatic force exerted on the charge q by

    asked by Anne on January 23, 2012
  71. math

    The a hollow cylinder. The internal and external radii are estimated to be 6 cm and 8 cm respectively, to the nearest whole number. The height of the cylinder is exactly 14 cm. (a) Determine the exactly values for internal and external radii which give

    asked by kudu on February 7, 2015
  72. physics numerical

    a long horizontal wire is rigidly placed, carrying a current of 50a. another parallel long wire carrying a current of 40a is just supported above it.determine the distance between them at which the upper wire can be just supported by magnetic repulsion

    asked by brock on October 20, 2011
  73. physics

    Please Help, Two point charges are fixed on the y axis: a negative point charge q1 = -23 µC at y1 = +0.23 m and a positive point charge q2 at y2 = +0.33 m. A third point charge q = +7.8 µC is fixed at the origin. The net electrostatic force exerted on

    asked by matt on March 30, 2012
  74. physics

    Two point charges are fixed on the y axis: a negative point charge q1 = -23 µC at y1 = +0.23 m and a positive point charge q2 at y2 = +0.33 m. A third point charge q = +7.8 µC is fixed at the origin. The net electrostatic force exerted on the charge q by

    asked by Kelly on March 29, 2012
  75. physics

    Two point charges are fixed on the y axis: a negative point charge q1 = -22 µC at y1 = +0.24 m and a positive point charge q2 at y2 = +0.37 m. A third point charge q = +7.7 µC is fixed at the origin. The net electrostatic force exerted on the charge q by

    asked by michelle on January 6, 2011
  76. Physics help

    Two masses m1 = 2 kg and m2 = 4 kg are connected by a light string. Mass m2 is connected to mass M = 14 kg by a string that passes over an ideal pulley. Determine the following quantities when the system is released from rest. (a) The acceleration of the

    asked by arcos15 on October 26, 2012
  77. statistics

    It has been stated that income increases with the amount of education one receives. Recently I sampled some managers (technical, construction, sales, and manufacturing), compared their salaries to each other and asked the amount of education that had

    asked by John on March 20, 2011
  78. calclus

    Is it possible to accurately approximate the speed of a passing car while standing in the protected front hall of the school? Task: Determine how fast cars are passing the front of the school. You may only go outside to measure the distance from where you

    asked by mariam on May 2, 2018
  79. Physics

    A hockey player is initially moving at 5.00m s to the east. Her mass is 50.0 kg. She intercepts and catches on her stick a puck initially moving at 35.0m s at an angle of 30 degrees (Fig. 6.40). Assume that the puck’s mass is 0.50 kg and the two form a

    asked by Dave on April 1, 2015
  80. Physics

    A microphone is attached to a spring that is suspended from the ceiling, as the drawing indicates. Directly below on the floor is a stationary 624-Hz source of sound. The microphone vibrates up and down in simple harmonic motion with a period of 2.31 s.

    asked by Amelia on February 1, 2018
  81. Physics

    The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 3.50 105 Pa, and the horizontal divisions represent 2.00 10-3 m3. Determine the work done (including algebraic sign) in each segment

    asked by Johnson on April 20, 2008
  82. calclus

    Is it possible to accurately approximate the speed of a passing car while standing in the protected front hall of the school? Task: Determine how fast cars are passing the front of the school. You may only go outside to measure the distance from where you

    asked by robin (urgent) on May 16, 2018
  83. Physics

    The ship in Figure P14.35 travels along a straight line parallel to the shore and a distance d = 500 m from it. The ship’s radio receives simultaneous signals of the same frequency from antennas A and B, separated by a distance L = 800 m. The signals

    asked by Steve on February 28, 2013
  84. Physics

    The ship in Figure P14.35 travels along a straight line parallel to the shore and a distance d = 500 m from it. The ship’s radio receives simultaneous signals of the same frequency from antennas A and B, separated by a distance L = 800 m. The signals

    asked by Steve on February 28, 2013
  85. US History

    'Some Americans believe that government agencies should regulate the internet, setting guidelines for its contents and limiting access to databases containing personal information. Determine your opinion. List reasons why you support or oppose regulations

    asked by mysterychicken on October 4, 2010
  86. calclus

    Is it possible to accurately approximate the speed of a passing car while standing in the protected front hall of the school? Task: Determine how fast cars are passing the front of the school. You may only go outside to measure the distance from where you

    asked by Eden (urgent) on May 17, 2018
  87. Chem Help Please!

    Separation / Chromatography Lets assume I have three component mixture of liquids. And I wish to determine the quantity of each component present. I have reference samples of two of the components but the other component is not identified. How do I design

    asked by Ilginsh on September 24, 2014
  88. Chem Help Please!

    Separation / Chromatography Lets assume I have three component mixture of liquids. And I wish to determine the quantity of each component present. I have reference samples of two of the components but the other component is not identified. How do I design

    asked by Ilginsh on September 24, 2014
  89. math

    I am doing something wrong when I work this question. Can someone show me the steps. I have the answer. x

    asked by priscilla on April 14, 2007
  90. Language Arts

    This question asks about your work in your reading character role. You may use your novel to help you answer the question. Think about the work you completed in your reading character role. Determine the ideas that would be most worthy to share in a

    asked by Help please! ASAP on May 14, 2017
  91. Tax consequence

    Corporation is a calendar-year taxpayer. All of the stock is owned by Fred. His basis for the stock is $35,000. On 3/1 (non-leap year), Corporation distributes $120,000 to Evan. Determine the tax consequences of the cash distribution to Fred in each of the

    asked by help on August 5, 2006
  92. physics

    An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.9 × 104 kg, and the force causes its speed to change from 7600 to 5400 m/s. (a) What is the work done by the

    asked by shaknocka on February 28, 2011
  93. physics

    In a high speed chase, a policeman's car bumps a criminal's car directly from behind to get his attention. The policeman's car is moving at 40 m/s to the right and has a total mass of 1800 kg. The criminal's car is initially moving in the same direction at

    asked by ricky on October 31, 2017
  94. Afro

    A man roll a boat in still water at a speed of 1m/s. The man set out to roll the boat in a river from a to b. The water in the river flows at 0.5m/s in the opposite direction.Determine the violocity of the boat through the water.

    asked by Fakorede segun on August 15, 2015
  95. Math

    A trade bought corn for sh 20 per kilogram and beans for sh 60 per kilogram. She mixed the corn and beans and sold the mixture at sh 48 per kilogram. If she made a 60% Profit, determine the ratio corn: beans per kilogram in the mixture.

    asked by Kd on September 2, 2018
  96. Precalculus

    How would you determine whether |y|= x^3 is symmetric with respect to the x-axis, y-axis, both, or neither. In my book it said to plug in (a,b) and to get an equation to compare the other ones to. So I got |b|= a^3. Then I plugged in (a,-b) to test the

    asked by Katie on October 14, 2008
  97. Algebra

    A triangle has an area of 60 in^2. Its base is 10 inches and its height is √x inches. What is the value of x? What is the height of the triangle? Please show all work that you use to determine your answer. (Hint: The formula for the area of a triangle is

    asked by sarah on May 20, 2013
  98. geometry

    Large triangle (30¢X, 60¢X, and 90¢X), the base is 15 feet. and small triangle (30¢X, 60¢X, and 90¢X) the above two triangle the ratio of the perimeter of the large triangle to the perimeter of the small triangle is ¡Ô3. Determine the area of the

    asked by Piggy on March 28, 2012
  99. geometry

    Large triangle (30¢X, 60¢X, and 90¢X), the base is 15 feet. and small triangle (30¢X, 60¢X, and 90¢X) the above two triangle the ratio of the perimeter of the large triangle to the perimeter of the small triangle is ¡Ô3. Determine the area of the

    asked by Piggy on March 28, 2012
  100. chemistry

    What is the percent ionization of a 1.38 mol/L weak acid if its Ka = 2.7 x 10-6? Answer to two (2) decimal places. I know what steps to use but have difficulty applying them to the quesiton Can someone please complete the question for me since there are

    asked by Anna on April 18, 2008

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