Popular questions and responses by will
  1. math

    A circular coffee table has a diameter of 5 ft. What will it cost to have the top refinished if the company charges $3 per square foot for the refinishing?

    asked on February 18, 2008
  2. physics

    A car is being pulled out of the mud by two forces that are applied by the two ropes shown in the drawing. The dashed line in the drawing bisects the 30.0° angle. The magnitude of the force applied by each rope is 2900 newtons (N). (a) How much force

    asked on June 28, 2013
  3. chemistry

    How many grams of table sugar (C12H22O11) will be needed to make 3.5 L of a 11.5 M solution?

    asked on July 27, 2015
  4. chemistry

    determine the end value of n in a hydrogen atom transition if the electron starts in n=2 and the atom absorbs a photon of light with a frequency of 4.57 times 10^14 Hz

    asked on July 5, 2010
  5. chemistry

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 24.0 of carbon were burned in the presence of 76.8 of oxygen, 12.8 of oxygen remained unreacted. What mass of carbon dioxide was produced?

    asked on September 17, 2010
  6. accounting

    Jack Shellenkamp owns and manages a computer repair service, which had the following trial balance on December 31, 2011 (the end of its fiscal year). BYTE REPAIR SERVICE Trial Balance December 31, 2010 Cash $8,000 Accounts Receivable 15,000 Parts Inventory

    asked on February 25, 2012
  7. Physics

    Two ice skaters have masses m1 and m2 and are initially stationary. Their skates are identical. They push against one another, as shown below, and move in opposite directions with different speeds. While they are pushing against each other, any kinetic

    asked on April 1, 2008
  8. Economics

    Sandra purchases 5 pounds of coffee and 10 gallons of milk per month when the price of coffee is $10 per pound. She purchases 6 pounds of coffee and 12 gallons of milk per month when the price of coffee is $8 per pound. Sandra’s cross-price

    asked on November 29, 2011
  9. Economics

    The price received by sellers in a market will decrease if the government Answer A. imposes a binding price floor in that market. B. decreases a binding price ceiling in that market. C. decreases a tax on the good sold in that market. D. increases a

    asked on November 29, 2011
  10. geometry

    Triangle ABC, AB=8, BC=10, and AC=12, M is the midpoint of AB, and N is the midpoint of BC. What is the length of MN?

    asked on January 1, 2011
  11. economics

    which of the following statements about inflation are true? check all that applies a) policy makers also worry about a negative inflation rate, or deflation b) painful government actions may sometimes be necessary to bring down a high inflation rate. c) A

    asked on September 23, 2012
  12. precalculus

    There are two boxes. The red box contains four red marbles and one blue marble, and the blue box contains five blue marbles and three red marbles. The following experiment is done a hundred times: A marble is randomly drawn from one of the boxes, its color

    asked on March 30, 2019
  13. accounting URGENT HELP DUE IN 1HR

    (a) Fill in the missing amounts. (If answer is zero, please enter 0. Do not leave any fields blank.) Account Titles Trial Balance Adjusted Trial Balance Dr. Cr. Dr. Cr. Accounts Receivable 34,000 Prepaid Insurance 26,000 20,000 Supplies 7,000 Accumulated

    asked on March 11, 2012
  14. chemistry

    sodium reacts completely with 0.142kg of chlorine, forming 234g of sodium chloride. What mass of sodium reacted? I know that for chemical changes the amounts should end up being equal, but I don't know how to set up the problem.

    asked on September 17, 2010
  15. Physics

    Suppose you are hiking down the Grand Canyon. At the top, the temperature early in the morning is a cool 1°C. By late afternoon, the temperature at the bottom of the canyon has warmed to a sweltering 37°C. (a) What is the difference between the higher

    asked on April 3, 2008
  16. Chemistry

    The toxic metal cadmium Cd2+ has a tendency to complex with as many as 4 Cl- ions. The complexation reactions can be written as: Cd2+ + Cl- ---> CdCl+ ``````` log Kf,1 = 1.98 Cd2+ + 2Cl- ---> CdCl20 `````` log Kf,2 =2.60 Cd2+ + 3Cl- ---> CdCl3- `````` log

    asked on September 15, 2016

    A balloon at a pressure of 755 torr and a volume of 5.00 L was allowed to rise in the atmosphere to a point at which the pressure inside and outside the balloon was 697 torr. What was the volume of the balloon at that altitude, assuming the temperature was

    asked on December 19, 2012
  18. Physics

    The artificial sweetener NutraSweet is a chemical called aspartame (C14H18N2O5). (a) What is its molecular mass (in atomic mass units)? 294.13 u (b) What is the mass (in kg) of an aspartame molecule? kg I was able to find the mass units but I'm having

    asked on April 27, 2008
  19. Algebra 1

    You trimmed a large square picture so that you could fit it into a frame. The area of the cut picture is 20 square inches. What is the area of the original picture?

    asked on February 17, 2016
  20. physics

    A system does 196 J of work on its environment and gains 40 J of heat in the process. (a) What is the change in the internal energy of the system? J (b) What is the change in the internal energy of the environment? J I thought the answer would be +40 for

    asked on April 26, 2008
  21. math

    Courtney is supposed to run laps around the outdoor track. At the start of each lap, however (even the first), there is always an 8 percent chance that Courtney will call it quits for the day. What is the probability that today Courtney will run (a) no

    asked on March 11, 2019
  22. physics

    When a 0.045 kg golf ball takes off after being hit, its speed is 35 m/s. A)How much work is done on the ball by the club? B)Assume that the force of the golf club acts parallel to the motion of the ball and that the club is in contact with the ball for a

    asked on April 18, 2010
  23. college math - biostatistics

    hey... first time user and really lost. wondering if someone can help: Based on data from the Statistical Abstract of the United States, 112th Edition, only about 14% of senior citizens (65 years old or older) get the flu each year. However, about 24% of

    asked on February 18, 2009
  24. history

    Why did the United States Become Involved in the Politics of Southeast Asia?

    asked on June 24, 2008
  25. Chemistry Periodic Trends

    The electron affinities of the elements from aluminum to chlorine are -44, -120, -74, -200.4, and -384.7 kJ/mol respectively. Rationalize the trend in these values. Electron affinity is the energy absorbed (endothermic) or emitted (exothermic) by the

    asked on February 11, 2007
  26. pre cal

    The vector u = (4300, 5200) gives the number of units of two models of laptops produced by a company. The vector v = 1800, 1200 gives the prices (in dollars) of the two models of laptops, respectively. Identify the vector operation used to increase revenue

    asked on July 14, 2016
  27. Algebra

    K2 is11,194 feet higher than Mt. Kenya. Write and solve an equation of Mt. Kenya. Please hep with this 9ne thanks

    asked on September 22, 2015
  28. math

    A rectangle has an area of 400 cm^2. If the rectangle is a square, what is its perimeter?

    asked on March 26, 2015
  29. Chemistry

    A compound of chlorine and fluorine, ClFn, reacts at about 75oC with uranium metal to produce uranium hexafluoride, UF6 and chlorine monofluoride, ClF (g). A quantity of uranium produced 3.53g UF6 and 343 mL ClF at 75oC and 2.50 atm. What is the formula

    asked on May 26, 2014
  30. chemistry Pleae

    C7H14O2 + NaOH What will this combination make? and can it be balanced?

    asked on August 22, 2013
  31. Algebra II

    A line has a slope of 2 and contains the points (1, 3) and (2, y). The value of y is what? Please explain in detail

    asked on February 22, 2013
  32. College Chemistry

    Using the molar volume (STP) or the ideal gas law equation, determine the molar mass,g/mole, of each of the following. A: 11.2g of a gas that has a volume of 1.50Lat STP? B: .0710g of a gas that has a volume 825ml at 1 atm

    asked on October 21, 2012
  33. physics

    The figure below shows an initially stationary block of mass m on a floor. A force of magnitude F = 0.570·mg is then applied at upward angle è = 22°. (a) What is the magnitude of the acceleration of the block across the floor if (a) ìs = 0.600 and ìk

    asked on November 18, 2010
  34. chemistry

    I am having a hard time with this one not sure how to set up the problem. A gas can holds 1.7gal of gasoline. What is this quantity in cubic centimeters? I know that 1gal=3.785L I know that 1L=1000cm^3 I have tried 1.7gal*3.785L/1gal=6.4345cm^3. I just can

    asked on September 8, 2010
  35. physics

    How does one Coulomb of charge compare to the charge on an electron? How do you think such a large difference arose historically? i got that the have the same mass and charge. i didn't understand the second part

    asked on October 16, 2007
  36. Physics

    At time = 0 an automobile already traveling at 30 km/hr. accelerates at 3m/s2 for 2 seconds. During these two seconds, how far does it go? i still cant get this one right. i think im not doing the formula right

    asked on September 2, 2007
  37. Physics

    What force is required to stop a 1500-kg car in a distance of 0.20 m if it is initially moving at 2.2 m/s?

    asked on December 7, 2017
  38. AP Calculus

    - Which of the following is false for f(x) = (5x^3-5x^2-10x)/(2x^5-2x) a) The x-axis is an asymptote of f(x) b) x = -1 is not an asymptote of f(x). c) x = 1 is an asymptote of f(x). d) The y-axis is an asymptote of f(x). Thanks

    asked on October 2, 2017
  39. Calc

    g'(x)=tan(2/1+x^2) Let g be the function with first derivative given above and g(1)=5. If f is the function defined by f(x)=ln(g(x)), what is the value of f'(1)? I know the answer is 0.311, but I need steps as to why. Please and thanks.

    asked on January 14, 2017
  40. Algebra

    A diver begins at sea level and descends vertically at a rate of 2 1/2 feet per second. How long does the Diver take to reach -15.6 feet?

    asked on September 22, 2015
  41. math

    The function f(x) = cx/2x+3 satisfies f(f(x))=x for all real numbers x\= -3/2. Find c.

    asked on March 26, 2015
  42. math

    The product of the first five terms of a geometric progression is 32. If the fourth term is 17, compute the second term.

    asked on March 12, 2013
  43. Consumer Math

    Compute the square footage of carpet needed to cover a room 12' 3" x 18' 4".

    asked on January 11, 2013
  44. Math

    what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)

    asked on November 29, 2012
  45. Math

    what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)

    asked on November 29, 2012
  46. Business Math Question

    Find the finance charge per $100 on a loan of $12,600 with a finance charge of $1,638.

    asked on November 8, 2012
  47. physics

    Waves on a particular string travel with a speed of 17 m/s. By what factor should the tension in this string be changed to produce waves with a speed of 102 m/s

    asked on February 7, 2012
  48. Math 120

    A recent study of 750 Internet userd in Europe found that 35% of Internet users were women. What is the 95% confidence interval of the true proportion of women in Europe who use the Internet? A)0.321

    asked on May 3, 2011
  49. Chemistry

    Consider this equilibrium: N2O4(g) + heat NO2(g). Initially, a 1.0 L container is filled with 2.0 mol of NO2. As the system approaches equilibrium, what happens to the rate of reaction of NO2 breaking down?

    asked on April 29, 2011
  50. Human Anatomy

    Which vertebral curvature abnormality is the most serious? Why?

    asked on September 24, 2009
  51. Business

    How do U.S. trade laws affect international business?

    asked on February 5, 2009
  52. Physics

    An 85 kg jogger is heading due east at a speed of 1.7 m/s. A 55 kg jogger is heading 40° north of east at a speed of 3.4 m/s. Find the magnitude and direction of the sum of momenta of the two joggers.

    asked on April 1, 2008
  53. Physic

    Why do protons in a very large nucleus have a greater chance of flying apart by electrical repulsion?

    asked on November 13, 2007
  54. math

    Let a and b be two positive integers, where a ≥ b. Find all pairs a, b such that their sum, their positive difference, their product, and their quotient add to 36

    asked on April 9, 2020
  55. Calculus

    Find constants a and b in the function f(x)=axe^(bx)such that f(3/4)=1 and the function has a local maximum at x=3/4. a= b=

    asked on October 23, 2019
  56. math

    Jamie is riding a Ferris wheel that takes 15 seconds for each complete revolution. The diameter of the wheel is 10 meters and its center is 6 meters off the ground. When Jamie is 9 meters above the ground and rising, at what rate is Jamie gaining altitude?

    asked on March 10, 2019
  57. Math

    The Mississippi River is about 25/25 the length of the Missouri River is 2540 miles long how long is the Mississippi River

    asked on February 14, 2018
  58. Chemistry

    Use the calculation of specific heat for your metal as an example and determine the effect on specific heat if the sample temperature is changed. Does this small loss in heat significantly (>5%) affect your value for the specific heat of the metal? How

    asked on November 15, 2016
  59. chemistry

    The problem is as follows: The toxic metal cadmium Cd2+ has a tendency to complex with as many as 4 Cl- ions. The complexation reactions can be written as: Cd2+ + Cl- ---> CdCl+ log Kf,1 = 1.98 Cd2+ + 2Cl- ---> CdCl2^0 log Kf,2 =2.60 Cd2+ + 3Cl- --->

    asked on September 15, 2016
  60. Algebra

    If f(x) is a linear function such that f(4) = 3, with a slope of 1/2, what is the equation of f(x)?

    asked on April 27, 2016
  61. chemistry

    can someone explain to me what happens when zinc and copper sulfate react? I know its a redox reaction and it gives off heat making it exothermic, but don't know whats actually happening in that reaction. can someone explain to me that reaction?

    asked on January 12, 2016
  62. Chemistry

    Suppose we had mixed 52.37 mL of 1.00 M HI solution with 25.42 mL of 1.00 M KOH solution, and measured a heat of reaction of -1.52 kJ. What is ΔH for this reaction, in kJ? Assume that all solutions have the same density as water (1.00 g/mL).

    asked on December 11, 2015

    A factory creates wooden beads used for various arts and crafts projects. One particular type of bead is in the shape of a cube. Each side of the bead is 0.25 inches long. A cylindrical hole with diameter of 0.12 inches is cut through the bead so that

    asked on November 23, 2015
  64. Chemistry

    Calculate the sodium ion concentration when 50.0 mL of 2.0 M sodium carbonate is added to 100.0 mL of 3.0 M sodium bicarbonate.

    asked on May 27, 2015
  65. Math

    Suppose you have a cache of radium, which has a half-life of approximately 1590 years. How long would you have to wait for 1/5 of it to disappear?

    asked on March 26, 2015
  66. algebra 1

    A very old vending machine accepts only nickels (n) and dimes (d). Candy costs up to $0.50, but sometimes the machine will dispense candy without any coins being inserted into the machine. Which inequality shows all of the ways to obtain a candy bar from

    asked on January 13, 2015
  67. Chemistry

    If a solution contains 0.65mol of OH−, how many moles of H+ would be required to reach the equivalence point in a titration?

    asked on November 16, 2014
  68. chemistry

    A 1.11 M solution of fluoroacetic acid, FCH2CO2H, is 5% dissociated in water. Calculate the value of the pKa of FCH2CO2H. pKa: ?? I dn't even know how to strt with this

    asked on August 26, 2014
  69. chemistry

    a) Calculate the number of moles of nitrogen dioxide, NO2, that could be prepared from 79.0 mol of nitrogen oxide and 82.0 mol of oxygen. 2NO(g)+O2(g)⟶ 2NO2(g) b) Identify the limiting reagent and the excess reagent in the reaction. What would happen to

    asked on August 24, 2014

    A cyclopropane-oxygen mixture is used as an anesthetic. If the partial pressure of cyclopropane in the mixture is 334 mmHg and the partial pressure of the oxygen is 1.02 atm, what is the total pressure of the mixture in torr? ?

    asked on December 19, 2012
  71. Math

    what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)

    asked on November 29, 2012
  72. Business Math Question

    You borrow $2,600 and repay the loan in 12 monthly installments of $232. What was the finance charge per $100 of the amount financed?

    asked on November 8, 2012
  73. Business Math Question

    Finance charge of $2.50 per $100 for 3 payments.

    asked on November 8, 2012
  74. statistics

    Can a percentile have the VALUE of 517? Can a percnetile have the VALUE -5.8? Can a percentile have the RANK 517? Can a percnetile have the RANK -5.8?

    asked on August 29, 2012
  75. English

    What is the verb in "where are my shoes"

    asked on July 24, 2012
  76. math

    Divide 7/24 by 35/48 and reduce the quotient to the lowest fraction. A. 245/1152 B. 4/10 C. 2/5 D. 42/48

    asked on April 12, 2012
  77. Trigonometry

    The tires on a car have radius 14 inches. Find the angular speed of the car tire in revolutions per second when it is traveling 70 mph. Find the angular speed at 80 mph. The tires on a car are 15 inches. Find the linear speed of the car when the tires are

    asked on January 21, 2012
  78. physics

    A mass of 0.04 kg is attached to a cord passing through a small hole in a frictionless, horizontal surface. The mass is initially orbiting with speed 4.9 m/s in a circle of radius 0.4 m. The cord is then slowly pulled from below, decreasing the radius of

    asked on October 19, 2011
  79. science

    In the system shown in the figure , block A has mass m_A = 2.08 kg, block B has mass m_B = 0.370 kg, and the rope connecting them has a nonzero mass 0.203 kg. The rope has a total length 1.03 m and the pulley has a very small radius. Let d be the length of

    asked on January 18, 2011
  80. Math

    What is the circumference of a circle with a diameter of 10 m.

    asked on January 17, 2011
  81. Calculus

    The machine earns the company revenue at a continuous rate of 62000 t + 38000 dollars per year during the first six months of operation, and at the continuous rate of $69000 per year after the first six months. The cost of the machine is $170000. The

    asked on November 30, 2010
  82. college

    the length of the top of a table is 3 m greater than the width. the area is 88m^2. find the dimensions of the table

    asked on November 15, 2010
  83. English

    Can you tell me what words are the infintive phrase and is it a noun, adj or adv? Is it To learn and it's a noun? To learn to count in three languages is my summer goal.

    asked on August 25, 2010
  84. 8th grade

    how to make a double line graph to show air/water temperatures.mon.air-92 water-68tues.air-94 water-69 wed.air-88 water=70,thurs. air=85 water=72 and friday air=96,water=72

    asked on June 9, 2010
  85. chemistry

    Hi, The question is, using Henry's law constant calculate the amount of Hydrogen Sulphide gas which could dissolve in 500ml of pure water (H20) placed near an active volcano assuming equilibrium conditions and ignoring any reactions with water. The

    asked on April 14, 2010
  86. business

    What considerations should managers and employees be aware of while in progressive discipline procedures?

    asked on February 9, 2009
  87. Education

    __________can be defined as a philosophy, an approach, and actions that embody treating all people with fairness, respect, dignity, and generosity. I can't find the answer to this. I'm thinking it is some form of Multicutural Education

    asked on September 30, 2008
  88. Education

    ___________involves designing and adapting the content, teaching strategies, resources, and activities in an effort to meet the needs of the students in a classroom. (1 point) I think it is pedagogy. Is that correct

    asked on September 30, 2008
  89. criminal behavior

    Describe one of the psychological or physical traits of trait theories associated with criminal behavior, and give an example of a recent criminal who exhibits this trait. Might this crime be prevented in future circumstances?

    asked on August 21, 2008
  90. Economics

    What are some similarities and differences between monopolies and oligopolies? How would you classify Microsoft©? How would you classify the power industry?

    asked on August 18, 2008
  91. History

    How did the U.S. economy change after WWII ended, compared to what it had been like during the war? what Where people were able to have and do, and what might it have felt like after the scarcity of wartime.

    asked on June 9, 2008
  92. Physics

    A steel section of the Alaskan pipeline had a length of 65 m and a temperature of 16°C when it was installed. What is its change in length when the temperature drops to a frigid -39°C? m

    asked on April 4, 2008
  93. Physics

    Concept Simulation 3.2 reviews the concepts that are important in this problem. A golfer imparts a speed of 32.9 m/s to a ball, and it travels the maximum possible distance before landing on the green. The tee and the green are at the same elevation. (a)

    asked on April 1, 2008
  94. health

    What are some of the reasons dietary modifications may be needed in different life stages

    asked on February 4, 2008
  95. Spelling

    I'm doing opposites and can't figure out this one Not include, but e _ _ _ _ e? Also Not colorful, but c _ l _ _ _ e _ _ ?

    asked on January 9, 2008
  96. Physics HELP PLEASE

    two spherical objects are separated by a distance of 9x10^-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a

    asked on September 18, 2007
  97. Physics URGENT!!!

    two charges attract each other with a force of 2.5 N. What will be the force if the distance between them is reduced to one-ninth its orginal value?

    asked on September 18, 2007
  98. Social Studies

    why is indianapolis know as the "Crossroads on America"? http://en.wikipedia.org/wiki/Crossroads_of_America

    asked on March 19, 2007
  99. Social Studies

    Why did the settlers name their community Seattle? http://www.chiefseattle.com/history/chiefseattle/chief.htm

    asked on March 19, 2007
  100. math

    jill has 5,000.00 in a savings account. she withdraws $150 every month.

    asked on May 8, 2020


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