Kai

Most popular questions and responses by Kai
  1. physics

    an antifreeze solution is made by mixing ethylene glycol (density= 1116 kg/m^3) with water. suppose that the specific gravity of such a solution is 1.0730. assuming that the total volume of the solution is the sum of its parts, determine the volume

    asked on November 20, 2010
  2. Chemistry

    A hydrate of copper (II) sulfate with formula CuSO4.xH2O has a molar mass of 250.0 g/mol. 2.545 g of hydrate is heated and 63.85% of the residue is found after heating. a) Determine the value of x in the formula of the compound b) What is the molecular

    asked on June 17, 2017
  3. Algebra 1

    Question: The height in feet above the ground of an arrow t seconds after it is shot can be modeled by y = -16t(squared) + 63t + 4. Can the arrow pass over a tree that is 68 feet tall? Explain. Completely lost, could anyone help me out?

    asked on February 28, 2011
  4. chemistry

    When a 8.45-mg sample of a compound containing carbon is burned completely, 18.1 mg of carbon dioxide is produced. What is the mass percentage of carbon in the compound?

    asked on March 12, 2017
  5. Math (Basic)

    "A woman earns 10.00 per hour at her job, but if she works more than 20 hours in a week she is paid 1.5 times her regular salary for the overtime hours worked. One week her gross pay was 275. How many overtime hours did she work that week? Express your

    asked on June 24, 2011
  6. Chemistry

    Liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. Suppose 5.71 g of octane is mixed with 5.0 g of oxygen. Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction. Be sure

    asked on October 24, 2018
  7. Math 11

    Express the following in completed square form: y = (2x)^2 + 14x - 11 Please show the work because I do not understand it.

    asked on March 9, 2019
  8. Science

    What fraction of the thickness of the thickest continental crust is the thickness of the oceanic crust? Give your answer as a reduced fraction.

    asked on November 27, 2012
  9. math

    julia wants to make 8 bows using 18 feet of ribbon.she wants to use an equal length of ribbon for each bow with no ribbon left over.how many feet of ribbon can she use for each bow?

    asked on October 8, 2015
  10. Precalc

    An investment of $37,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned 8% interest, the second 6%, and the the third 9%. Total interest from the investments was

    asked on November 28, 2012
  11. AP Chem

    The heat of combustion of octane (C8H18) is 47.8 kJ/g and one gallon of C8H18 has a mass of 2620 g. If a car using octane is driven 10,000 miles in one year and gets 25 miles per gallon of octane, what is the total energy consumption? 1. 5.01 × 107 kJ 2.

    asked on November 14, 2010
  12. Chemistry

    Compound has a molar mass of 283.89 g.mol^-1 and the following composition: Phosphorus: 43.64% Oxygen: 56.36% Write the molecular formula of X.

    asked on December 17, 2018
  13. Physics

    During launches, rockets often discard unneeded parts. A certain rocket starts from rest on the launch pad and accelerates upward at a steady 3.50 m/s^2. When it is 255 m above the launch pad, it discards a used fuel canister by simply disconnecting it.

    asked on July 13, 2011
  14. Chemistry

    Oxygen gas may be prepared by decomposing hydrogen peroxide, h2o2, using manganese (IV) oxide catalyst: 2H2O2(liquid) ----> 2H2O(liquid) + O2(gas) Calculate the amount of oxygen that will be produced from 1.35 moles of H2O2 Determine the mass of oxygen gas

    asked on December 5, 2014
  15. AP Chem

    What energy change is associated with the reaction to obtain one mole of H2 from one mole of water vapor? The balanced equation is 2 H2O(g) -> 2 H2(g) + O2(g)and the relevant bond energies are H-H : 436 kJ/mol; H-O : 467 kJ/mol; O-O : 146 kJ/mol; O=O : 498

    asked on November 15, 2010
  16. AP Chem

    What energy change is associated with the reaction to obtain one mole of H2 from one mole of water vapor? The balanced equation is 2 H2O(g) -> 2 H2(g) + O2(g)and the relevant bond energies are H-H : 436 kJ/mol; H-O : 467 kJ/mol; O-O : 146 kJ/mol; O=O : 498

    asked on November 15, 2010
  17. english

    In Katherine Mansfield’s short story “At the Bay,” which character is a foil to Stanley as he is introduced? A. the shepherd B. Jonathan C. Beryl D. Alice E. Linda

    asked on February 25, 2019
  18. Chem

    The heat of combustion of octane (C8H18) is 47.8 kJ/g and one gallon of C8H18 has a mass of 2620 g. If a car using octane is driven 10,000 miles in one year and gets 25 miles per gallon of octane, what is the total energy consumption? 1. 5.01 × 107 kJ 2.

    asked on November 14, 2010
  19. English

    Which line is most significant in developing the epiphany in this passage? A. “He was conscious of, but could not apprehend, their wayward and flickering existence;” B. “He watched her while she slept as though he and she had never lived together as

    asked on February 25, 2019
  20. Math, slope

    The cost of a taxi ride is $5.00 plus $0.75 for every 0.5 km. Graph this relation Identify the slope and the vertical intercept of the line. What do the represent? Write an equation relating the cost and the distance traveled. I'm not sure how I was

    asked on April 4, 2017
  21. english

    Which statement best describes the significance of the setting in James Joyce’s short story “Eveline”? A. The story offers a defense of Irish nationalism in the face of British persecution.* B. The story depicts World War I’s destabilization of

    asked on February 25, 2019
  22. Accounting

    The Divine Merchandising Corporation began March operations with merchandise inventory of 6 units, each of which cost $27. During March, Divine Merchandising made the following purchases: (1) March 4, 12 units @ $28 per unit, (2) March 15, 18 units @ $30

    asked on April 8, 2013
  23. Physics

    A 5.0 Ω resistor, a 9.0 Ω resistor, and a 10.0 Ω resistor are connected in parallel across a 24.0 V battery. What is the equivalent resistance of the circuit? Answer in units of Ω

    asked on February 19, 2013
  24. Global

    How did peter the great increase his power

    asked on June 4, 2019
  25. math

    There are two containers of milk. There is twice as much milk in the first container as in the second. After using 2 gal. of milk from the second container and 3 gal. of milk from the first container, the second container had 4.5 times less milk than the

    asked on October 10, 2018
  26. physics

    The mass of a pendulum moves a total horizontal distance of 14cm in one cycle. What is the amplitude of the vibration?

    asked on December 2, 2014
  27. algebra

    a ball is thrown downward from the too of 110 ft bldg with an initial velocity of 14ft per second. the height of ball h after t seconds is given by the equation h = -16t^2-14t +110. how long after ball is thrown will it hit the ground

    asked on December 15, 2011
  28. behavior problem (dogs)

    please check my answer thanks Your friend owns a young Beagle. Her complaint is that the dog is a slave to his nose and he rarely pays attention to anything other than following a scent. She would like your help in obedience training and behavior

    asked on October 6, 2008
  29. math

    find the smallest angle of this pentagon x, x-15, x-50, x-30, x-40

    asked on November 7, 2017
  30. Math help please

    here are 7 pencils and 9 pens in Jack's pencil case. Represent the number of pens to the number of pencils as a ratio.

    asked on February 2, 2016
  31. math

    Translate the following argument into symbolic form and determine wheter it's logically correct by constructing a truth table. If the team wins, then the team remains in the playoffs. If the team stays in the playoffs, then the championship is within

    asked on December 11, 2012
  32. behavior problems (dogs)

    Please check my answer thanks The problem with "quick fix" corrections designed to eliminate one specific behavior is that the A. dog may not respond to the correction. B. dog may be frightened by the correction. C. owner may be unable to utilize the

    asked on October 6, 2008
  33. behavior problems (dogs)

    please check my answer thanks An unwanted behavior persists because the A. behavior elicits a reward. B. dog has a temperament fault. C. trainer doesn't use treats as rewards. D. owner doesn't know how to punish the dog effectively. I picked A

    asked on October 6, 2008
  34. English

    Come, brothers all! Shall we not wend The blind-way of our prison-world By sympathy entwined? Shall we not make (5) The bleak way for each other’s sake Less rugged and unkind? O let each throbbing heart repeat The faint note of another’s beat To lift a

    asked on September 4, 2018
  35. math

    How many times as great as 15^9 is 15^10 ?

    asked on February 7, 2015
  36. Math

    (1/9)x^3+67 at x=9 Is the answer 148 Please help

    asked on December 6, 2012
  37. math

    Correction of problem submiited earlier. The amount P of pollution varies directly with the population N of people. City A has a population of 494,000 and produces 260,000 tons of pollutants. Find how many tons of pollution we should except City B to

    asked on December 17, 2011
  38. Physics

    I have these two equations that I'm supposed to set equal to each other and find the answer for h which is height for this problem. But I don't think I'm solving it correctly. 0 - (h/5) = -1.1(v0) - (1/2)(-9.8)(1.1)^2 (v0)^2 = 2(-9.8)(h/5 - h) My final

    asked on July 14, 2011
  39. Math

    what does this derivative mean? (d/dx)(d/dt)(x^2t + t^2x - 2x^3)

    asked on July 13, 2011
  40. Science

    The ____ of the cell is the control center of the cell.

    asked on January 13, 2011
  41. Chem

    What happens when a student cup between trials? What effect will the error have on the calculated value of the delta H of neutralization?

    asked on November 9, 2010
  42. behavior problems ( dogs)

    Please check my answer thanks Your new client has a nine-month-old, neutered male Anatolian Shepherd Dog. She would like your help with a behavior problem. Each night, after she lets the dog out to eliminate, he refuses to come back in. She has ended up

    asked on October 6, 2008
  43. behavior problems (dogs)

    Please check my answer thanks When a well-trained dog is placed in a stay and ignores a distraction, the dog is showing A. intelligence. B. sociability. C. dominance. D. impulse control. I picked D

    asked on October 6, 2008
  44. behavior problems (dogs)

    please check my answer thanks You've evaluated Max, a two-year-old neutered male English Bull Terrier. You found him to be very friendly with humans; he's outgoing and confident. Max is an obedient dog and you anticipate he will do well in training. Max's

    asked on October 6, 2008
  45. Behavior problems (dogs)

    Please check my answer thanks A prospective client phones about her dog's behavior problem. When they go for a walk, the dog starts out walking nicely, until it finds an interesting scent. Then the dog stops and refuses to budge. She's a large dog, and the

    asked on October 6, 2008
  46. Science

    In the calibration of a calorimeter, an electrical resistsnce heater supplies 80J of heat and a temperature increase of 1.20°C is observed. What is the initial temperature of 8.50g of (C8H18) with a molar heat capacity of 39.36J/molK after heating in the

    asked on September 15, 2018
  47. Physics

    A plane is circling the airport. It takes 35 min to do one circle with a radius of 5.0 x 10^4 m. The plane weighs 6.05 x 10^4 kg. What the angular velocity

    asked on April 16, 2018
  48. Math

    "Two numbers have a sum of 15 and a difference of 7. What are the two numbers?" A word problem using system of equations and I'm pretty lost an help?

    asked on February 25, 2018
  49. Pure Math

    Find the complex number u=x+yi where x,y € I, such that u^2=-5+12i. HELPPPPPPP!

    asked on October 23, 2016
  50. biology

    Explain the vascular system of a lilac flower Some sites would help me very much as i cant find any that explain the vascular system of the lilac flower.

    asked on December 4, 2014
  51. algebra

    a ball is thrown downward from the too of 110 ft bldg with an initial velocity of 14ft per second. the height of ball h after t seconds is given by the equation h = -16t^2-14t +110. how long after ball is thrown will it hit the ground

    asked on December 15, 2011
  52. Physics :/

    An object 3-cm high is 20 cm from a concave mirror. The focal length of the mirror is 8 cm. a. Calculate where the image is located. b. Calculate the size of the image

    asked on March 25, 2011
  53. Science

    Sediment rocks are formed from _____ that are cemented and pressed together. I don't have a book to look in.

    asked on January 13, 2011
  54. behavior problems (dogs)

    please check my answer thanks Ariel is a six-year-old, spayed female Doberman. She has recently begun licking her left foreleg almost constantly. The licking has created a sore on her leg, but she continues the behavior. Your first recommendation to the

    asked on October 6, 2008
  55. behavior problems(dogs)

    please check my answer thanks You're contacted by the owners of Abbey, a three-year-old spayed Lab mix. Abbey has a history of biting her owners and visitors. The bites usually occur when the victim reaches for the dog. The owners believe that this problem

    asked on October 6, 2008
  56. math

    What is the measure of an angle if its two, adjacent, supplementary angles add up to 100°.

    asked on October 18, 2018
  57. Math

    Hello, can I please have help on how to find the area of a hexagon by knowing the apothem is 4 and the square root of 3? Thank you!

    asked on July 15, 2016
  58. Financial Management

    Calculate the present value of $25,000 to be received in 5 years, assuming an opportunity cost of 10%.

    asked on October 26, 2014
  59. chemistry

    2NaClO2---> 2NaCl + 3O2 if 3.85 grams of NaClO3 react, how many moles of O2 are created?

    asked on December 11, 2012
  60. Math

    Match the expression: Subtract 41 from 24 raised to the 6th power; then multiply by 2.

    asked on November 29, 2012
  61. Math

    Subtract 5 from 8. Then multiply by c. Which of the. Following expressions matches the statement above? A.(8-5) x c B.(5-8) x c

    asked on November 27, 2012
  62. math - would like to know if i did problem correct

    4t^2/5=t/5+3/10 t=3/4, t=/1/2 thank you

    asked on December 18, 2011
  63. Word Problem Question

    I would like to know if I am correct, so far. The amount P of pollution varies directly with the population N of people. City A has population of 494,400 and produces 260,000 tons of pollutants. Find how many tons of pollution we should expect City B to

    asked on December 16, 2011
  64. physics

    It Takes 2 N of force to get a 15 kg object to move horizontally on a surface. What is the normal force of the surface on the object?

    asked on November 8, 2011
  65. behavior problems(dogs)

    please check my answer thanks Ideally, when working on a behavior problem, you'll show the owners ways to A. reorganize the environment so the dog has fewer chances to misbehave. B. discipline a dog correctly and not spoil him. C. teach some commands that

    asked on October 6, 2008
  66. Physics help

    Add the two component vectors from Sample Problem 1 algebraically to erify that they equal the given vector The two component vectors are: 8.6m(North) and 12m (west) The given vector is 15m(West 35 degrees North)

    asked on September 30, 2014
  67. math

    Determine whether the following argument is correct. If it's not correct, explain what is wrong with ther argument and change the minor premise to make a correct argument. If a triangle is equilateral, then it has three equal sides. Triangle ABC doesn't

    asked on December 11, 2012
  68. math

    Two lookout stations, which are 25 miles apart along the coast on a north-south line, spot an approaching yacht. One lookout station measures the direction to the yacht at N 33degrees E, and the other station measures the direction of the yacht at S

    asked on December 11, 2012
  69. Math

    Match the expression: subtract 41 from 24 raised to the 6th power; then multiply by 2. Is it A. (24^6-41) x 2 Or B. 24^6-41 x 2 Or C. (24-41)^6 x 2

    asked on November 29, 2012
  70. Math

    Add d and 7 then divide by 3

    asked on November 27, 2012
  71. Math

    Divide18 by g. Then, subtract 7. C. 18/g-7 Is this right?

    asked on November 27, 2012
  72. algebra - correction of previously submitted. Is t

    4t^2/5=t/5+3/10 = t=3/4, t=-1/2

    asked on December 18, 2011
  73. Algebra

    *correction of previous post* Find the LCD of the rational expressions in the list. m-2/m^2+2m , -8/m^2+6m+8

    asked on December 2, 2011
  74. Physics (Astro)

    How do you express 1.65×10^4km as a multiple of 6.38x10^6 m?

    asked on June 24, 2011
  75. mathematics

    a cyclist bikes over a path at 10 miles per hour. he returns over the same path at * miles per hour. what was his average speed for the round trip.((please explain how to do this)

    asked on March 22, 2011
  76. Physics

    A closed organ pipe 0.8 m long has a diameter of 7.0 cm. The air in the church is 15oC. What is the fundamental frequency? If the heat is turned up to 20oC, what is the new fundamental frequency? - HELPHELPHELP

    asked on March 1, 2011
  77. pre-algebra

    what is x? -2x+4=3x-6

    asked on February 10, 2011
  78. algebra

    what is a good number sentence to show that 5 is a factor of 35?

    asked on December 20, 2010
  79. Math

    State different situations that do not involve money in which a formula like the one for compound interest is used. In each case, state a related problem and write its solution.

    asked on November 13, 2010
  80. Math

    Amy is charged 12% annual interest compounded monthly on the unpaid balance of a $2000 loan. She did not make any payments for 2 years. Her friend said the amount she owed had more than doubled, is that true? how much does she owe?

    asked on November 13, 2010
  81. social studies

    What is an another word for replanting trees?

    asked on September 23, 2009
  82. Dog Business

    Please check my answer thank you very much for your help Based on the following information below please answer the question that follow. Area A: Brooklyn Brooklyn is a very heavily populated urban area within commuting distance from Manhattan by subway,

    asked on April 10, 2009
  83. Dog Business

    Please check my answer thank you very much for your time Use the information below to answer the question that follows it Area A: Brooklyn Brooklyn is a very heavily populated urban area within commuting distance from Manhattan by subway, bus, or car.

    asked on April 10, 2009
  84. 11th grade

    How did Gandhi demonstrate an appreciation for other faiths?

    asked on November 11, 2008
  85. Religion

    In the movie Gandhi, when he returned to India, what were 3 of the injustices he discovered?

    asked on November 11, 2008
  86. behavior problems(dogs)

    Please check my answer thanks The dog's desire to be in the same room with his owners is evidence of A. lack of confidence. B. pack drive. C. poor early socialization. D. separation anxiety I picked A ( wolves like to be part of a pack as well as dogs) tho

    asked on October 6, 2008
  87. behavior problems (dogs)

    Please check my answer thanks Often, when an owner disciplines his or her dog it's done A. to help the dog understand what is expected of him. B. to teach the dog a lesson. C. in anger. D. in the best interest of the dog. I picked C tho I have known people

    asked on October 6, 2008
  88. Science

    Identify the most important way heat is lost from the body during exercise? and these are the choices Evaporation Conduction Radiation Convection

    asked on May 9, 2008
  89. Discrete Math

    Could someone help me with this induction proof. I know its true. given then any integer m is greater than or equal to 2, is it possible to find a sequence of m-1 consecutive positive integers none of which is prime? explain any help is greatly appreciated

    asked on March 26, 2007
  90. discrete math

    Could someone help me with this induction proof. I know its true. given then any integer m is less than or equal to 2, is it possible to find a sequence of m-1 consecutive positive integers none of which is prime? explain any help is greatly appreciated

    asked on March 26, 2007
  1. math

    ok

    posted on March 26, 2019
  2. Math 11

    The answer in the book says: y = 2 (x+7/2)^2 -71/2

    posted on March 9, 2019
  3. english

    is it a?

    posted on February 25, 2019
  4. Science

    Well, I usually call the people here sir bc I think most of the tutors here are male.

    posted on September 15, 2018
  5. Science

    My answer is almost 800K

    posted on September 15, 2018
  6. Language Arts ?

    B B A D

    posted on June 1, 2018
  7. social studies

    god bless you Denise

    posted on May 28, 2018
  8. ~*Math Probability*~

    Thanks, and, it's called "the honor code".

    posted on April 25, 2018
  9. Education technology

    Pika- ah- ahcooo!

    posted on April 23, 2018