Johnny

Popular questions and responses by Johnny
  1. History

    Why do you think state and local governments have a major role in providing important services? Why doesn't the federal government take on more of this role?

    asked on December 7, 2016
  2. CHemistry

    Arrange the following compounds in order of decreasing ease of elution from a column of silica gel: a) 2-octanol; b) 1,3-dichlorobenzene; c) tert-butylcyclohexane; d) benzoic acid I was wondering if this was the correct order of it: Tert-butylcyclohexane >

    asked on May 2, 2010
  3. 11th grade economics

    Why is it that the reward for capital is interest? I don't get how the business is rewarded interest, isn't it the banks?

    asked on February 15, 2010
  4. Organich Chemistry

    What effect will the following factors have on a chromatographic separation 1) too strong an absorbent 2)collection of large elution fractions

    asked on April 26, 2010
  5. Math

    Solve for the unknown quantity in each proportion

    asked on January 12, 2018
  6. History

    Which accurately describe the involvement of the Catholic Church in the Crusades? A.)In the 13th century, the Church sanctioned the Children’s Crusade in which adolescents and teenagers set out from Europe to reclaim Jerusalem. B.)In 1208, the Church

    asked on June 12, 2019
  7. geometry

    Given: ΔАВС, m∠ACB = 90° CD⊥AB,m∠ACD =60° BC = 6 cm. Find: АD

    asked on December 3, 2017
  8. physics

    I am having great difficulty with this question. A block is placed on a frictionless ramp at a height of 12.5 m above the ground. Starting from rest, the block slides down the ramp. At the bottom of the ramp, the block slides onto a frictionless horizontal

    asked on October 2, 2014
  9. Chemistry

    In the following reaction, which substance is acting as the Brønsted-Lowry acid? NH3 + H2O NH4+ + OH

    asked on June 13, 2011
  10. physics!

    howdy, just cant seem to get this question, can anyone express this question in words i can get?! thanks A sound wave of wavelength 0.8 m divides into two equal parts that recombine to interfere constructively, with the original difference between their

    asked on June 3, 2010
  11. physics

    In downhill speed skiing a skier is retarded by both the air drag force on the body and the kinetic frictional force on the skis. Suppose the slope angle is è = 37.5°, the snow is dry snow with a coefficient of kinetic friction ìk = 0.0400, the mass of

    asked on December 13, 2008
  12. Algebra 2 Probability

    There are 10 cards. Each card has one number between 1 and 10, so that every number from 1 to 10 appears once. In which distributions does the variable X have a binomial distribution? When a card is chosen at random with replacement six times, X is the

    asked on April 17, 2018
  13. College physics

    A 0.006 00-kg bullet traveling horizontally with a speed of 1.00 x 10^3 m/s enters an 20.1-kg door, imbedding itself 10.9 cm from the side opposite the hinges as in the figure below. The 1.00-m wide door is free to swing on its frictionless hinges. At what

    asked on April 11, 2012
  14. physics

    A firefighter with a weight of 722 N slides down a vertical pole with an acceleration of 3.11 m/s2, directed downward. (a) What are the magnitude and direction of the vertical force (use up as the positive direction) exerted by the pole on the firefighter?

    asked on December 11, 2008
  15. Chemistry

    Explain, in terms of particles, concentration, and reaction rate, what you expect to happen when methane gas (CH4) and hydrogen sulfide gas (H2S) are sealed in a flask and reach a state of equilibrium. CH4 (g) +2 H2S (g) CS2 (g) + 4 H2 (g

    asked on June 13, 2011
  16. physics

    A 1175 kg car carrying four 82 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude when its speed is 24 km/h. The car now stops,

    asked on December 11, 2008
  17. Chemistry

    How many grams are there in 2.3 x 10^24 atoms of silver? I need to use dimensional analysis, and I'm not sure of the conversions I'd need to solve this problem. Thank you!

    asked on October 7, 2007
  18. math

    Mr. Angulo buys 5/8 pound of red grapes and 3/8 pound of green grapes. How many pounds of grapes did mr.angulo buy in all?

    asked on February 10, 2016
  19. the odyssey

    what is an important theme in the odyssey,Part 2?Describe the events that illustrate this theme? You need to go to www.sparknotes.com/lit, find Odyssey (in the O section, not the T's), read through the themes section, and decide. Let us know what you

    asked on March 2, 2007
  20. Chemistry

    3AgNO3 + Na3PO4 ---> Ag3PO4 + 3NaNO3 Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced? 1. What is the limiting? 2. How much silver phosphate is produced? 3. How much is in

    asked on November 11, 2017
  21. Calculus and Vectors

    THE VECTORS a - 5b AND a-b ARE PERPENDICULAR. IF a AND b ARE UNIT VECTORS, THEN DETERMINE a dot b

    asked on May 11, 2013
  22. Chemistry

    Hey bob- Here's what I got so far: 3AgNO3 + Na3PO4 ---> Ag3PO4 + 3NaNO3 Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced? 1. What is the limiting? 2. How much silver phosphate

    asked on November 11, 2017
  23. Chemistry

    Mg + 2HCl ----> MgCl2 + H2 What volume of hydrogen at STP is produced from the reaction of 50.0g of Mg and the equivalent if 75g of HCl? 1. What is the limiting reagent? 2. What is the volume of hydrogen produced? 3. How much is in excess?

    asked on November 11, 2017
  24. Social studies

    Why was the mayflower compact so significant?

    asked on October 16, 2016
  25. Chemistry

    2. When a 1.000 g sample of the rocket fuel hydrazine, N2H4, is burned in a bomb calorimeter which contains 1200g of water, the temperature rises from 24.62C to 28.16C. If the C for the bomb is 840 J/C Calculate: q reaction for combustion of a one-gram

    asked on March 8, 2011
  26. chemistry

    which of the following tetrahedral molecules is polar? please explain CH4 CF4 CH3F thanks

    asked on February 25, 2014
  27. Physics

    The acceleration of a bus is given by a_x(t)=At, where A= 1.21 is a constant. A)if the bus's velocity at time t_1= 1.14s is 5.03m/s, what is its velocity at time t_2= 2.04 ? B)if the bus's velocity at time t_1= 1.14s is 6.02m/s, what is its velocity at

    asked on May 28, 2010
  28. Geometry

    Given: △ABC, ADEF rhombus D∈AB, E∈BC, F∈AC AB=14, BC=12, AC=10 Find: BE and EC

    asked on March 4, 2019
  29. Economics

    At a management luncheon, two managers were overheard arguing about the following statement “A manager should never hire another worker if the new person causes diminishing returns”. Is this statement correct? If so, why? If not, explain why not.

    asked on July 6, 2009
  30. Math

    A poster is 3 times a long as it is wide. A banner is 5 times as long as it is wide. Both the banner and the poster have perimeters of 24 inches. What are the length and width of the poster and the banner

    asked on October 10, 2013
  31. chemistry

    Calculate the concentrations of all species in a 1.67 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10–2 and Ka2 = 6.3× 10–8. I know how to find the Na^+ and SO3^-2 but I don't know how to find

    asked on June 17, 2012
  32. algebra

    simplify the number using the imaginary unit i. √-16

    asked on October 21, 2013
  33. Math - Polynomials

    off-topic: yay it's friday :D Simplify each polynomial. 1. 6g + 8k + 9g + 2k A) 3g + 10k B) -3g + 10k *** C) 17gk D) 10k - 3 2. -4x + 6x2 + 5x A) 7x^3 B) 6x^2 + 9x *** C) 6x^2 - 9x D) 6x^2 + x 3. a^2 + 5a - 3a^2 A) 5a + 2a^2 *** B) 5a - 2a^2 C) 2a^2 + 5a

    asked on May 8, 2015
  34. Physics

    A crate sets on wooden horizontal surface (a wooden floor). The figure shows a top view of this looking down onto the crate (gravity would be acting into the page). Man one and man two apply forces F1 and F2, at angles of θ1 and θ2 respectively, with the

    asked on October 9, 2014
  35. Chemistry

    A .288 g sample of an unknown monoprotic organic acid is dissolved in water and titrated with a .115 M sodium hydroxide solution. After the addition of 17.54 mL of base, a pH of 4.92 is recorded. The equivalence point is reached when a total of 33.83 mL of

    asked on June 8, 2008
  36. algebra 1

    simplify (0.4)3

    asked on February 3, 2016
  37. math

    In ΔABC,AD and BE are the angle bisectors of ∠A and ∠B and DE║ AB.If m∠ADE is with 34° smaller than m∠CAB,find the measures of the angles of ΔADE.

    asked on December 3, 2017
  38. physics

    An automobile can be considered to be mounted on four identical springs as far as vertical oscillations are concerned. The springs of a certain car are adjusted so that the oscillations have a frequency of 3 Hz. (a) What is the spring constant of each

    asked on December 11, 2008
  39. Plz help with literature

    The Most Dangerous Game Directions: Each question has a different point value. (134 total) As always, answer in complete sentences. Use the back of the sheet or your own paper. DO NOT CRAM ANSWERS ON THIS SIDE OF THIS SHEET! (5) 1. What do you admire or

    asked on September 3, 2015
  40. calculus

    let theta be an angle of quadrant IV such that sin theta = -8/9 find the exact value of sec theta and cot theta?

    asked on January 14, 2020
  41. Algebra

    Juan charges $3.50 per hour for babysitting. Write a rule to describe the amount of money (M) earned is a function of the number of hours (h) spent baby-sitting. HELP PLEASE

    asked on November 17, 2010
  42. PHYSICS HELPPPPP

    A diver descends from a salvage ship to the ocean floor at a depth of 35 m below the surface. The density of ocean water is 1.025x10^3 kg/m^3. a) Calculate the guage pressure on the diver on the ocean floor. b) Calculate the absolute pressure on the diver

    asked on January 21, 2007
  43. chemistry

    What mass of carbon dioxide can be produced from 4 moles of sodium bicarbonate according to the following unbalanced reaction, NaHCO3 --> Na2CO3 + CO2 + H2O?

    asked on January 12, 2016
  44. Physics

    Four 50-\mu {\rm{C}} charges are brought from far apart onto a line where they're spaced at 2.0-{\rm cm} intervals. How much work does it take to assemble this charge distribution?

    asked on February 4, 2010
  45. Math

    Milo's pancakes recipient makes 9 serving. It's calls for 3/4 cup milk.Milo's wants to make 6 serving. How much milk will he needs.

    asked on March 30, 2016
  46. algebra 1

    graph the function for the domain of 3x -y=1;D:(-3,-1,0,4)

    asked on December 16, 2015
  47. Programming

    Submit pseudocode and a flowchart for the following programming exercise: Fat Gram Calculator Design a program that asks for the number of fat grams and calories in a food item. Validate the input as follows: - Make sure the number of fat grams and

    asked on August 19, 2010
  48. Statisitcs

    Scores on the verbal section of the SAT have a mean of 500 and a standard deviation of 100. If someone scored at the 90th percentile, what is their SAT score?

    asked on October 31, 2010
  49. physics

    An object is hung from a spring balance attached to the ceiling of an elevator cab. The balance reads 60 N when the elevator is standing still. (a) What is the reading when the elevator is moving upward with a constant speed of 9.6 m/s? N (b) What is the

    asked on December 11, 2008
  50. Physics

    Balance of vertical forces problem. Three balanced forces pull on a ring that is centered over a force table. Two forces F1 and F2 are due to weights hanging from pulleys. A frictionless pulley changes the direction of a force without altering its

    asked on April 27, 2010
  51. math

    One phone plan charges a $20 monthly fee and $0.08 per minute on every phone call made. Another phone plan charges a $12 monthly fee and $0.12 per minute on each call. After how many minutes is the charge the same for both plans? A.60 minutes B.90 minutes

    asked on July 14, 2014
  52. math

    In △ABC, CM is the median to AB and side BC is 12 cm long. There is a point P∈CM and a line AP intersecting BC at point Q. Find the lengths of segments CQ and BQ, if P is the midpoint of CM

    asked on December 29, 2018
  53. math

    kellys dog eats 1 2/3 bones in 10 days. How many bones will he eat in 18 days?

    asked on February 8, 2015
  54. physics

    A mass M is split into two parts, m and M - m, which are then separated by a certain distance. What ratio m/M maximizes the magnitude of the gravitational force between the parts?

    asked on December 6, 2008
  55. chemistry

    Sixteen electrons are present in the Lewis structure of which of the following molecules? CO2 N2O SO2 more than one correct response no correct response If more than one correct response please show all correct answers thank

    asked on February 23, 2014
  56. History

    Can someone please tell me what this quote means, I am having trouble understanding. “When Andrew Johnson took upon himself the duties of his high office he swore to obey the Constitution and take care that the laws be faithfully executed. That, indeed,

    asked on November 17, 2017
  57. math

    5. There are x dictionaries in a bookstore. After 1/8 of them were purchased, 10 more dictionaries were shipped in bringing the total number of dictionaries to 52. What is the value of x?

    asked on July 28, 2014
  58. Math

    An only son inherited a 3/4 hectare lot. He decided to build a 40-door condominium on the lot. The floor are of the units is uniform and the total floor area of the entire condominium is 1/5 less than the area of the lot to provide for certain amenities.

    asked on July 3, 2016
  59. trig

    This a problem I need help with. A vertical ple stands by a road that is inclined 10 degrees to the horizontal. When the angle of elevation of the sun is 23 degrees, the pole casts a shadow 38 ft long directly downhill along the road. How long is the pole?

    asked on November 9, 2009
  60. Physics

    I need help on two problems :P 1. A spherical balloon is partially blown up and its surface area is measured. More air is added increasing the volume of the balloon. If the surface area of the balloon expands by a factor of 2.0 during this procedure, by

    asked on September 1, 2010
  61. math

    building lot in a city is shaped as a 30° -60° -90° triangle. The side opposite the 30° angle measures 41 feet. a. what is the length of the side of the lot opposite the 60° angle b. what is the length of the hypotenuse of the triangular lot. c. what

    asked on March 7, 2017
  62. Physics

    A driver of a car going 95.0 km/h suddenly sees the lights of a barrier 39.0 m ahead. It takes the driver 0.95 s before he applies the brakes, and the average acceleration during braking is -10.0 m/s2. What is the maximum speed at which the car could be

    asked on February 15, 2011
  63. physics

    In an electric shaver, the blade moves back and forth over a distance of 2.0 mm. The motion is simple harmonic, with frequency 118 Hz. (a) Find the amplitude. mm (b) Find the maximum blade speed. m/s (c) Find the magnitude of the maximum blade

    asked on December 11, 2008
  64. Geography/ Auto industry

    What government imposed barriers stop or hinder the export of automobiles?

    asked on January 8, 2008
  65. Physics

    On your first day at work for an appliance manufacturer, you are told to figure out what to do to the period of rotation during a washer spin cycle to triple the centripetal acceleration. You impress your boss by answering immediately. Express in terms of

    asked on June 7, 2010
  66. Physics

    A neutron with a mass of 1.67x10^-27 kg traveling east with a kinetic energy of 2.00x10^-21J collides perfectly elastically with helium nucleus with a mass 6.68x10^-27 kg that is initially at rest. After the collision, the neutron has a kinetic energy

    asked on November 12, 2014
  67. Chemistry

    Been stumped on this problem for a day now. 2KClO3-->2KCl+3O2 a) If 53.0g of potassium chlorate breaks down, what volume of oxygen is produced? For this one I got: 14.6L O2 b) How many grams of potassium chloride are produced from problem a? For the life

    asked on November 11, 2017
  68. physics

    An airplane is travelling at a speed of 600 mph on a heading of 345 degrees. There is a wind moving at a speed of 70 mph on a heading of 20 degrees. The pilot would like to maintain his planned course. Find the speed and heading he should set in order to

    asked on November 15, 2015
  69. physics

    The Sun and Earth each exert a gravitational force on the Moon. What is the ratio FSun/FEarth of these two forces? (The average Sun-Moon distance is equal to the Sun-Earth distance.)

    asked on December 6, 2008
  70. Math

    Given rectangular prism A is similar to rectangular prism B and the volume of A is 125 ft3 and the volume of B is 27 ft3. What is the ratio of the surface areas for A:B? A. 3 : 5 B. 5 : 3 C. 25 : 9 D. 125. 27

    asked on April 2, 2020
  71. Math Problem Solving

    Jay and Mark run a lawn mowing service. Mark's mower is twice as big as Jay's, so whenever they both mow, Mark mows twice as much as Jay in a given time period. When Jay and Mark are working together, it takes them 4 hours to cut the lawn of an estate. How

    asked on January 18, 2010
  72. physics

    A neutron with a mass of 1.67x10^-27 kg traveling east with a kinetic energy of 2.00x10^-21J collides perfectly elastically with helium nucleus with a mass 6.68x10^-27 kg that is initially at rest. After the collision, the neutron has a kinetic energy

    asked on November 9, 2014
  73. math

    Find the area of the following circle. r = 9 yd.

    asked on January 25, 2013
  74. Physics

    What is the change in entropy of steam 320g of steam at 100°C when it is condensed to water at 100°C?

    asked on July 1, 2019
  75. MATH

    The volume of a cylinder with a radius of 2 feet and a height of 4 feet is 50.2 feet^3. The volume of a cylinder with a radius of 4 feet and a height of 8 feet is 401.9 feet^3. The volume of a cylinder with a radius of 6 feet and a height of 12 feet is

    asked on December 15, 2017
  76. Finite math

    Consider the following annuity scheme: regular payments of $200 are made every two months at the end of the month (in other words, there are six equally spaced payments over the year) into an account with a nominal rate of 6% compounded monthly. Note, this

    asked on November 10, 2016
  77. Chemistry

    During a fractional distillation of a 25mL ethanol/H2O soln, it was found that first the temperature stayed constant at ~75 C for 3mL of soln, then it went up to 100 C for the rest of the soln. The first question is: Assuming that the unknown (ethanol) did

    asked on February 1, 2012
  78. math

    A ship model is 0.5% actual size. If the model is 1 meter long, what is the actual length of the ship?

    asked on July 8, 2014
  79. chemistry

    If you are given a 2.0 M solution of sucrose, describe in detail how you would make the following solutions (include specific glassware): a. 500 ml of 1.2M sucrose b. 300 ml of 0.55M sucrose

    asked on May 26, 2008
  80. stats

    The probability is 0.7 that a person shopping at a certain store will spend less than $20. For groups of size 13, find the mean number who spend less than $20.

    asked on July 6, 2017
  81. physics

    A wheel starts from rest and rotates with constant angular acceleration to an angular speed of 9.3 rad/s in 1.39 s. Find the magnitude of the angular acceleration on the wheel

    asked on February 8, 2015
  82. physics

    An astronaut comes loose while outside the spacecraft and finds himself floating away from the spacecraft with only a big bag of tools. In desperation, the astronaut throws his bag of tools in the direction of his motion (away from the space station). The

    asked on October 9, 2014
  83. AP physics 2

    You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 790 N and that of your belongings is 1080 N. (a) Determine the work done by the elevator in lifting you and your belongings up to the 6th floor (15.2 m) at a

    asked on February 18, 2011
  84. NEED HELP ASAP PHYSICS@!!1

    Tarzan (m = 78.4 kg) tries to cross a river by swinging from a vine. The vine is 10 m long. Tarzan doesn't know that the vine has a breaking strength of 1045 N. What maximum speed (in m/s) can Tarzan have at the bottom of the swing (as he just clears the

    asked on April 10, 2015
  85. phyics

    A ball is thrown straight upward. At 5.00 m above its launch point, the ball’s speed is one-half its launch speed. What maximum height above its launch point does the ball attain?

    asked on October 20, 2013
  86. Economics

    Engineers at a national research laboratory built a prototype automobile that could be driven 180 miles on a single gallon of unleaded gasoline. They estimated that in mass production the car would cost $40,000 per unit to build. The engineers argued that

    asked on July 6, 2009
  87. physics

    The figure below shows a "conical pendulum", in which the bob (the small object at the lower end of the cord) moves in a horizontal circle at constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.035 kg, the string has

    asked on December 11, 2008
  88. Physics

    A driver of a car going 95.0 km/h suddenly sees the lights of a barrier 39.0 m ahead. It takes the driver 0.95 s before he applies the brakes, and the average acceleration during braking is -10.0 m/s2. What is the maximum speed at which the car could be

    asked on February 15, 2011
  89. Physics

    A neutron with a mass of 1.67x10^-27 kg traveling east with a kinetic energy of 2.00x10^-21J collides perfectly elastically with helium nucleus with a mass 6.68x10^-27 kg that is initially at rest. After the collision, the neutron has a kinetic energy

    asked on November 12, 2014
  90. chemistry

    Which of the following statements concerning differences between ionic and molecular compounds is correct? Molecular compounds contains two elements, and ionic compounds contain three of more elements ionic compounds contain oxygen, and molecular compounds

    asked on February 23, 2014
  91. Chemistry

    What's the formula for Li2Co3+Co(NO3)3(aq) ->

    asked on June 1, 2016
  92. math

    The number 1 is a perfect square (1X1=1) and a perfect cube (1X1X1=1). What is the next smallest whole number which is both a perfect square and a perfect cube?

    asked on April 4, 2011
  93. ACTIVITY-BASED COSTING

    Globe Company produces two products, A1 and B2. A1 is a high-volume item totaling 20,000 units annually. B2 is a low-volume item totaling only 6,000 units per year. A1 requires one hour of direct labor for completion, while each unit of B2 requires 2

    asked on February 24, 2009
  94. physics

    In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you

    asked on December 6, 2008
  95. Physics...PLZ HELP

    How much work is done to move 1.0 micro coloumb of charge from the negative terminal to the positive terminal of a 1.8V battery?

    asked on September 29, 2009
  96. physics

    12.8 kg of ice at 0 C is dropped into 3.3 kg of water at C. What fraction of the ice melts? =

    asked on May 4, 2014
  97. Math

    A golden rectangle has a length of 10 cm. The ratio of its length to its width is (1 + sqrt 5)/2 what is the width of the rectangle in simplified radical form? I need to know the formula to solve other problems like this.

    asked on May 22, 2020
  98. Financial Management 2-2

    If an individual buys stock on margin and its price rises, the investor A. must put up additional collateral. B. must pay tax on the unrealized gain. C. must pay interest on the borrowed funds. D. may take delivery of the stock. I would think the answer is

    asked on February 21, 2009
  99. chemistry

    In the explosion of a hydrogen-filled balloon, 0.30g of hydrogen reacted with 2.4g of oxygen to form how many grams of water vapor? (Water vapor is the only product.)

    asked on September 6, 2011
  100. physics

    How much work is done to move 1.0 micro coloumb of charge from the negative terminal to the positive terminal of a 1.8V battery?

    asked on September 29, 2009

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