Popular questions and responses by Ron
  1. Algebra

    A rectangular field is four times as long as it is wide. If the perimeter of the field is 400 yards, what are the fields dimensions? The width of the rectangular field is ____ yards.

    asked on October 29, 2015
  2. chemistry buffers

    What molar ratio of HPO4 2- to H2PO4 - in solution would produce a pH of 7.0? Phosphoric acid (H3PO4), a triprotonic acid, has pKa values: 2.14, 6.86, and 12.4. Only one of the pKa values is relevant here. how do i know which pka value to use.. please

    asked on September 9, 2012

    2. Two electronics technicians are looking at the technical manual for a piece of electronic equipment. The manual refers to a particular resistor as a “2.2 megohm resistor.” Technician A says that this means that the resistance value of the resistor

    asked on July 19, 2012
  4. math

    A 13 feet ladder is placed 5 feet away from a wall. What is the distance from the ground straight up to the top of the ladder?

    asked on February 1, 2017
  5. Physics Help..

    A small cube (m=0.290 kg) is at a height of 261 cm up a frictionless track which has a loop of radius, R = 28.71 cm at the bottom. The cube starts from rest and slides freely down the ramp and around the loop. Find the speed of the block when it is at the

    asked on February 12, 2014
  6. Physics(quick Check)

    i am not sure if i am correct. A 650-N force acts in a northwesterly direction. A second 650-N force must be exerted in what direction so that the resultant of the two forces points westward? A: southeasterly It is from the southeasterly direction rite

    asked on October 1, 2009
  7. Physics

    A v vs t graph is drawn for a ball moving in one direction. The graph starts at the origin and at t=5s the acceleration of the ball is zero. We know that at t=5s, a) the curve is not crossing the time axis b) the velocity of the ball is not changing c) the

    asked on October 13, 2008
  8. Physics

    Two soccer players, Mary and Jane, begin running from nearly the same point at the same time. Mary runs in an easterly direction at 4.43 m/s, while Jane takes off in a direction 60.2o north of east at 5.07 m/s. How long is it before they are 24.7 m apart?

    asked on March 3, 2016
  9. english

    When you write in second person, you’re acting the part of a/an A. critic. B. observer. C. participant. D. advocate.

    asked on October 16, 2015
  10. pre calculus

    A state makes auto license plates that have two letters (excluding I, 0, and Q) followed by four digits of which the first digit is not zero. How many different license plates are possible?

    asked on March 30, 2010
  11. ab calculus

    Air is being blown into a spherical balloon at the rate of 75 cm3/s. Determine the rate at which the radius of the balloon is increasing when the radius is 28 cm.

    asked on October 26, 2016
  12. Algebra

    Suppose a box is to be constructed from a square piece of material of side length x by cutting out a 3-inch square from each corner and turning up the sides. Express the volume of the box as a polynomial in the variable x

    asked on September 15, 2015
  13. chemistry

    You have 10.0 g each of Na, C, Pb, Cu and Ne. Which contains the smallest number of moles?

    asked on June 3, 2013
  14. english

    which of the following is an example of an adverbial clause fragment? 1.Wherever there is a chance for a fabulous meal,2. who described the book as a compelling masterpiece or 3.that the poet choose words carefuly to convey a particular tone. I think it is

    asked on December 3, 2011
  15. chemistry grade 12

    Question: Balance the following reactions by the oxidation number method. a) I2 + HNO3 --> HIO3 + NO2 + H2O so i have N +5 to +4 net charge = -1 I 0 to +5 net charge = +5 i add coefficient where the oxidation number is changing. in this case I2 + 4HNO3 -->

    asked on November 17, 2009
  16. chemistry 2

    A saturated solution of Mg(OH)2 has a pH of 10.52. What is the Hydronium concentration? Whats the hydroxide concentration? Is this solution acidic,or basic?

    asked on April 18, 2008
  17. Math

    When you divide a whole number by a fraction with a numerator of 1 explain how you can find the quotient?

    asked on January 23, 2013
  18. chemistry

    Hi, Does anybody know any good websites that can teach me step-by-step basic chemistry (through power points) to AP chemistry? I would greatly appreciate it! Since this is not my area of expertise, I searched Google under the key words "AP chemistry

    asked on December 31, 2006
  19. Science

    How much work is done to lift 5kg box to a vertical height of1.5m

    asked on July 10, 2017
  20. Chemistry

    A gas weighing 23.6 g occupies a 10.0 L flask at 27 C and 780. torr of pressure. Calculate the molar mass of the gas.

    asked on November 23, 2015
  21. math

    if john spent $130 and matt spent $480, john will have three times as much money left as matt. how much money did each boy start with ?

    asked on October 2, 2013
  22. statistics

    in a sample of 1000 people ,113 are left handed.the results of the sample are shown in the table.find the probability that a randomly selected person is a left handed,given that she is a woman.

    asked on October 4, 2011
  23. math

    a) What is the area of the tri-angle determined by the lines y= − 1/ 2x + 5,y =6x and they-axis? (b) If b > 0 and m < 0, then the line y = mx +b cuts off a triangle from the first quadrant. Express the area of that tri-angle in terms ofm andb. (c) The

    asked on October 2, 2011
  24. Physics

    Under less than ideal conditions, a student pushes a 6 kg cart holding 2 boxes of books up a ramp to a platform that is 1.8 m high in 42 sec. Each box contains 12 kg of books. The ramp is inclined at an angle of 15 degrees. He pushes w/ a steady force of

    asked on April 8, 2010
  25. Physics

    The artificial sweetener NutraSweet is a chemical called aspartame (C14H18N2O5). (a) What is its molecular mass (in atomic mass units)? u (b) What is the mass (in kg) of an aspartame molecule? kg I know I have to get the totally mass of the aspartame, but

    asked on April 19, 2008
  26. Bio

    The _______ - subunit of most heterotrimeric G-proteins binds the guanine nucleotides and acts as a _________. a. beta, ATPase b. gamma, GTPase c. alpha, ATPase d. gamma ATPase c. alpha, GTPase I think the right answer is "E" but not sure please help E is

    asked on August 1, 2006
  27. Trig

    The Leaning Tower of Pisa is 55m tall. The tope edge of the tower is 5m out from the bottom edge. What is the angle created between the ground and the tower? Round your answer to the nearest degree. tan -1 (55/5) = 85 degrees but my Brother says I did it

    asked on January 29, 2016
  28. Physics

    A bullet (m = 0.0250 kg) is fired with a speed of 92.00 m/s and hits a block (M = 2.50 kg) supported by two light strings as shown, stopping quickly. Find the height to which the block rises. Find the angle (in degrees) through which the block rises, if

    asked on January 6, 2014
  29. Math

    Sue has 8 yards of twine she cuts the twine into equal pieces of 3/4 feet each how many pieces can he cut?

    asked on January 23, 2013
  30. chemistry-rate of reaction

    The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2. The reaction is second order in AhF. The value of the rate constant is 3.591×10−3 M−1s−1. What is the initial rate of reaction in a reactor

    asked on December 2, 2012
  31. communications

    2.Which of the following is NOT a technique for emphasizing material in a résumé? A. Presenting it in vertical lists B. Including it as part of a lengthy paragraph C. Offsetting it with white space D. Positioning it at the top of a page 1.) I think it's

    asked on July 29, 2012
  32. statistics

    The average teenager spends 7.5 hours per week playing computer and video games. In a random sample of 110 teenagers, what is the probability that their mean time for playing games is more than 8 hours per week?

    asked on November 2, 2011
  33. chemistry

    Nitrous acid, HNO2, has a Ka of 7.1 x 10^-4. what are [H3O+], [NO2-], and [OH-] in .920 M HNO2?

    asked on November 15, 2010
  34. chemistry

    Does anybody know any websites that there are chemistry labs that could possibly be used in a CSI investigation? I can’t find anything.

    asked on February 24, 2007
  35. Science

    A boat moving at 8.9 km/hr relative to the water is crossing a river 4.6 km wide in which the current is flowing at 2.4 km/hr. At what angle upstream should the boat head to reach a point on the other shore directly opposite the starting point?

    asked on December 2, 2015
  36. allied school

    glady swan slipped from a sidewalk curb and twisted her right ankle. because of the severe pain cpt codes icd 9 codes icd codes

    asked on November 22, 2015
  37. Math

    Justin had 5 packages with 8 bottles of water in each package. He drank some of the bottles before the trip. During the trip, he drank 5 bottles a day. He drank all of the bottles before he went home. How many bottles of water did Justin drink before the

    asked on November 3, 2015
  38. Spanish II

    Fill in the blank with the correct conjugation of the verb in parentheses. ¿Cuándo (regresar) mi tía de México? A)regresamos B)regresan C)regreso D)regresa (There are more, help needed before Friday please.)

    asked on November 3, 2015
  39. Calculus

    A wire of length 12 meter is cut into two parts; one part is bent to form a square, and the other is bent to form an equilateral triangle. Where the cut cut should be made if a) the sum of the two areas is to be a maximum? b) the sum of the two areas is be

    asked on October 30, 2014
  40. economics

    A speculator sells a stock short for $50 a share. The company pays a $2 annual cash dividend. After a year has passed the seller cover a short position of $42. What is the percentage return on the position (excluding the impact of any interest expense and

    asked on January 19, 2014
  41. Math

    Express 2.4 as a fraction in its simplest form

    asked on July 14, 2013
  42. Algebra

    Leila purchased a prepaid phone card for . Long distance calls cost cents a minute using this card. Leila used her card only once to make a long distance call. If the remaining credit on her card is , how many minutes did her call last?

    asked on July 8, 2013
  43. Math

    Name the vertices of a square whose angles are f,g,a,l

    asked on February 12, 2013
  44. Economics

    Opera CD buyers are located in New York and Los Angeles. At the current price for a CD, $25 in both New York and Los Angeles, aggregate demand for Opera CD is 10,000 units (i.e. the sum of the demand in New York and Los Angeles); and the price elasticity

    asked on December 8, 2012
  45. DrBob222 : need help with the problem

    An unknown compound, X, is though to have a carboxyl group with a pKa of 2.0 and another ionizable group with a pKa between 5 and 8. When 75 mL of 0.1M NaOH is added to 100 mL of a 0.1M solution of X at pH 2.0, the pH increases to 6.72. Calculate the pKa

    asked on September 11, 2012
  46. chem

    Pka=pH when[HA]=[A- ]. What is [A-]/[HA] WHEN PH=PKA+1 AND WHEN pH=pka-1

    asked on September 3, 2012
  47. Algebra

    Please let me know if i answered these correctly thanks 1.Which property of the real numbers is illustrated by the following statement? 4(3x) = (4 ∙ 3)x answer: distributive property 2. Which property of the real numbers is illustrated by the following

    asked on August 3, 2012
  48. math

    A rectangular dog pen is to be sectioned off into two separate areas and made to enclose area of 225 feet. Find the dimensions of the pen that will require the least amount of fencing material.

    asked on March 23, 2012
  49. Latin

    How do u change a cardinal number in to ordinal number.

    asked on March 7, 2012
  50. accounting

    Why might an analyst incorporate the industry-market-size factor and the interrelationships among the growth, price-recovery, and productivity components into a strategic analysis of operating income?

    asked on February 2, 2011
  51. accounting

    Why might an analyst incorporate the industry-market-size factor and the interrelationships among the growth, price-recovery, and productivity components into a strategic analysis of operating income?

    asked on February 2, 2011
  52. Math

    What is the property type of (2x100)+[(1x100)+(3x10)]+(5x10)

    asked on March 31, 2010
  53. algebra

    one canned juice drink is 15% orange juice; another is 5% orange juice. how many liters of each should be mixed together in order to get 10 liters that is 10% juice? how many liters of 15%? how many liters of 5%?

    asked on March 28, 2010
  54. Geometry

    In a right prism whose bases are regular hexagons what is the measure of the dihedral angle between adjacent lateral faces?

    asked on January 25, 2010
  55. chemistry grade 12

    Explain why the top of a commercial 1.5 V dry cell battery is always marked with a plus sign.

    asked on November 17, 2009
  56. english

    I have to write a paper on a detail dealing with a problem in a medical supply office. 10 years ago Liz Jakowski promote me to office manager. I manage two employees: jack snyder and ruth disselkoen. My office provide office support for members of the

    asked on October 31, 2009
  57. science

    how do i reword this purpose staetment for my experiment? Lab Manual: Purpose: To measure a physiological quantity,your reaction time to both audio and visual stimulus. Rewording: To scientifically measure the test subjects reaction time in both audio and

    asked on October 4, 2009
  58. college

    in recent decades, lobbyists in washington, d.c. have increasingly

    asked on September 6, 2009
  59. The court system

    I need to write a 1400 word paper comparing the entertainment fiction of the court system with its reality. Describe the fictional portrayals of the courtroom including the trial process, the roles of the prosecution and defense, the roles of the courtroom

    asked on November 29, 2008
  60. calculus

    find all x,y intercepts of x+6/x-3 show work

    asked on September 30, 2008
  61. Albebra

    c squared-4c-12=0 we have to solve each equation by completing the square.

    asked on December 4, 2007
  62. math

    Samantha’s speedometer reads in kilometers per hour. If the legal speed limit is 55 mi/h, how fast can she drive? How should I set this up? 160 kilometers per hour is 100 miles 55 miles is 88 kilometers. Here in New Zealand we are in kilometers

    asked on May 28, 2007
  63. science

    what is freezing and boiling point of sugar. Several sources on the Internet list the melting point as 160-186 with decomposition. The Merck Index lists "dec. 160-186. Chars and emits characteristic odor of caramel." Since it decomposes at 186, the boiling

    asked on May 2, 2007
  64. English

    Yes, A rasin in the sun by Lorraine Hansberry OK what is your question? Are you looking for a theme? do you have any questions that need to be answered, cuz I have a whole list of them for every act First off thank you for helping me! This the? What are

    asked on April 27, 2007
  65. math

    For a wedding, Shereda bought several dozen roses and several dozen carnations. The roses cost $15 per dozen, and the carnations cost $8 per dozen. Shereda bought a total of 17 dozen flowers and paid a total of $192. How many roses did she buy? A 6 dozen B

    asked on April 9, 2007
  66. percentages

    Hi I want to know what one amount is a percentage of another example what is 0.74 and a percentage of 4.91 thanks What is the percentage of .74 of 4.01? percent= .74/4.02 * 100 Thank You !!!!!!

    asked on October 2, 2006
  67. Math

    How calculate 130 to the nearest metre?

    asked on April 5, 2020
  68. social studies

    which reigion was home to the sioux

    asked on September 25, 2019
  69. MATH

    1/2 - 1/64 =

    asked on February 12, 2019
  70. math

    2 4 6 8 -1 2 4 3 4 -4 0 0 -2 1 0 0 0 0 0 0 piviot the system about the element in row 2 colum 1 enter the augmented matrix with the cell in their original position

    asked on January 24, 2019
  71. Math

    What is 7x+3=77

    asked on April 1, 2018
  72. math

    If you have a square blanket and it's 130 square inches. How long is one side in furlongs?

    asked on October 9, 2017
  73. philosophy

    Determine if these arguments are strong, weak or failed 1. Pierre is French. Therefore, he is European. Answer:weak

    asked on August 31, 2017
  74. Chemistry

    What will burning of .3 liters of C2H2 produce?

    asked on January 14, 2017
  75. math

    If the average of 4 numbers is 12, what is the sum of the 4 numbers?

    asked on December 1, 2016
  76. math

    calvin has 90 stamps. for every mexican stamp, calvin has 8 U.S. stamps. How many mexican stamps does Calvin have?

    asked on October 12, 2016
  77. Calculus

    find the extremum of f(x,y) subject to the given constraint, and state wether it is a maximum or minimum. 4y^2-29x^2; 3x+y=21

    asked on October 7, 2016
  78. history

    In the context of criminal punishment, desert refers to:

    asked on May 30, 2016
  79. physics

    Four point masses, each of mass 2.0 $kg$ are placed at the corners of a square of side 1.4 $m$. Find the moment of inertia of this system about an axis that is perpendicular to the plane of the square and passes through one of the masses. The system is set

    asked on April 25, 2016
  80. physics

    A cyclist starts from rest and pedals such that the wheels of his bike have a constant angular acceleration. After 18.0 s, the wheels have made 190 rev. What is the angular acceleration of the wheels? What is the angular velocity of the wheels after 18.0

    asked on April 25, 2016
  81. Chemistry

    Zn (0.85M) + Cu (1.10M) in an electrochemical cell. what is the conc of the zinc ion?

    asked on April 24, 2016
  82. consumer math

    The Jones hope to accumulate $12000 for a sunroom over the next 6 yrs. How much would they need to invest right now at 3.9% compounded quarterly to reach goal? Please help

    asked on April 9, 2016
  83. Physics

    The exact mass of the moon was not determined until the Apollo lunar orbiter went into orbit around the moon. They used the period and the orbital radius to find the mass. But since you already know the mass of the moon, if the spaceship was orbiting 485

    asked on March 16, 2016
  84. Multiplication of fractions

    60 people can receive a single slice of pizza,how many people can receive a single slice of pizza if 7 pizzas are purchased?

    asked on February 9, 2016
  85. Physics

    A city planner is working on the redesign of a hilly portion of the road. An important consideration is how steep the road can be so that even a low-powered car can get up the hill without slowing down. A particular small car with a mass of 1368 kg can

    asked on February 3, 2016
  86. Math

    From -40 take -55, the answer I came to is 15, is this correct?

    asked on January 29, 2016
  87. Math

    Need help please. 183 1/3% of 4800

    asked on January 29, 2016
  88. Physics

    A 25.2 kg block of wood is pulled across a floor at a constant 9.74 m/s with a constant 62.7 N force. The bottom of the box has a surface area of 65.1 cm2. If the block was put on its side (which has twice the surface area of the bottom) and pulled with

    asked on January 4, 2016
  89. Research

    The Average Score in the entrance examination in MSHS is 80 with a standard deviation of 40 students was taken from this year’s examinees and it was found to have a mean score of 84. Is there a significant difference between the known mean and the sample

    asked on December 9, 2015
  90. Science

    An airplane is traveling 725 m/s at 48.8° degrees north of west when a wind starts to blow. The velocity of the wind is 106.7 m/s and it is blowing 21.8° east of north. What is the speed of the airplane relative to the ground?

    asked on December 2, 2015
  91. Precalc

    1) Janet is offered a job with a starting salary of $15,000, and a guaranteed annual increase of $600. If she takes the job, what will be her guaranteed salary for the 10th year? What would her total earnings be for the first 10 years? Answer: $21,000 ; $

    asked on November 12, 2015
  92. Math

    Carol can run 4.2 Miles's in 14 minutes, what is her speed per minute.

    asked on September 16, 2015
  93. Math

    There are 64 students. 80% scored a 75 on a final test. How many students scored a 75?

    asked on May 6, 2015
  94. Geometry

    we have line QR parallel= to line ST, PQ = 8, QS = , and PT = 12. Find PR.

    asked on March 28, 2015
  95. Physics

    The crankshaft of an engine increases its spin from 1,200 rpm to 1,500 rpm in 0.50 s. What is its angular acceleration

    asked on December 11, 2014
  96. MATH

    10 5/12 ÷ 1/10 =

    asked on July 18, 2014
  97. PSY/240 Hunger, Eating,

    I am confused, please explain what are set points and what are settling points in relation to weight control?

    asked on July 2, 2014
  98. Psy 270

    Where can I find the best resources to research this question besides the text book? Psychology has many applications in our lives, both professionally and personally. How might having a background in psychology help you in your professional life? How

    asked on May 28, 2014
  99. Social Studies

    Name the 6 founding Fathers of the us

    asked on May 12, 2014
  100. Psychological and Psychophysiological Stress Disor

    What kind of traumatic events cause undiagnosable psychological disorders?

    asked on April 20, 2014


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