Most popular questions and responses by Bryan
  1. Education technology

    1. which of the following is an example of tangible property? A method for creating ice cream that you friend thought of An idea for an invention that your dad mentioned briefly but did not write down•• Song lyrics printed in a songbook A quicker

    asked on May 6, 2016
  2. Chemistry

    Three people weigh on a standard mass of 2.00 g on the same balance. Each person obtains a reading of 7.32 for the mass of the standard. These results imply that the balance that was used is ___________. a) neither accurate nor precise b) accurate c)

    asked on February 20, 2014
  3. Education technology

    how can simulations be used in education? 1. They are allowed people to touch a real item throug the computer. They provide a realistic experience that students many not get in real life.•• They substitute games for learning. They make games real.

    asked on May 6, 2016
  4. 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 on May 6, 2016
  5. science, chemistry

    2Al(s)+ 3Cl2(g)=2AlCl3(s) For the above reaction calculate: A) delta H, then state whether the reaction is endothermic or exothermic B) delta s, then whether the reaction becomes more or less disorder. C) delta G, the state whether the reaction is

    asked on May 7, 2012
  6. Finite MAth

    Assume that you have 6 different types of vegetables and 9 different types of fruit. A vegetable salad consists of a mixture of any 3 types of vegetables, and a fruit salad consists of a mixture of 3 kinds of fruit. (1) In how many different ways can you

    asked on January 26, 2012
  7. trig

    A plane has an airspeed of 200 miles per hour and a heading of 28.0°. The ground speed of the plane is 207 miles per hour, and its true course is in the direction of 38.0°. Find the speed and direction of the air currents, assuming they are constants.

    asked on November 29, 2012
  8. Chemistry

    When 16 grams of methane gas combine with 64 grams of oxygen, 44 grams of carbon dioxide form, plus water. What mass of water is produced? You can work this problem as a stoichiometry problem OR you can recognize that the law of conservation of mass tells

    asked on October 1, 2006
  9. Geometry

    Quadrilateral ABCD is inscribed in a circle. Find the length of its shorter diagonal if AB=12, CD=18, arc BC=120, and arc AD =60°.

    asked on February 12, 2018
  10. Education technology

    Which of the following is not an example of malicious code? A. Trojan horse B. worm C. virus D. spy gear ••

    asked on May 6, 2016
  11. Calc

    If x2 + y2 = 100 and dy/dt = 3, find dx/dt when y = 8.

    asked on November 8, 2009
  12. Algebra II

    Suppose that an object is dropped from a height of h meters and hits the ground with a velocity of v meters per second. Then v= sqrt19.6h. If an object hits the ground with a velocity of 24.2 meters per second, from what height was it dropped? Carry your

    asked on April 1, 2014
  13. Physics

    Assume the length of an organ pipe is L=24cm. You have excited the wave in the tube, and you observe that it has displacement nodes at 4cm, 12cm, and 20cm measured from one end of the pipe. In which harmonic, n, is the air in the pipe oscillating? What is

    asked on September 16, 2014
  14. Statics

    A former student of mechanics wishes to weigh himself but has access only to a scale A with capacity limited to 100 lbs and a small 24-lb spring dynamometer B. With the rig shown he discovers that when he exerts a pull on the rope so that B registers 22

    asked on September 14, 2014
  15. physics

    The figure below shows three circuits, each consisting of a switch and two capacitors, initially charged as indicated. Let qL represent the charge on the left-hand capacitor in each circuit. The switches in all circuits are then closed.

    asked on April 9, 2013
  16. physics

    a 75kg person is standing on a scale in an elevator, the scale gives a readout in newtons(you have to use a free body diagram)determine the reading on the scale in newtons in each of the following situations, when the elevator is not moving, the elevator

    asked on August 20, 2016
  17. Chem

    Cyclopropane (C3H6) reacts to form propene (C3H6) in the gas phase. The reaction is first order in cylclopropane and has a rate constant of 5.87*10^-4 at 485degreesC. If a 2.5L reaction vessel initially contains 724 torr of cyclopropane at 485degreesC, how

    asked on February 24, 2011
  18. Finite MAth

    Assume that the committee consists of 5 Republicans and 7 Democrats. A subcommittee consisting of 6 people is to be selected. (1) How many such subcommittees are possible if each subcommittee must contain exactly 3 Republicans and 3 Democrats? (1) How many

    asked on January 26, 2012
  19. Chemistry

    How do I make the following coversions, in standard exponential form? 1)14.8g to micrograms 2)3.72 X 10-3kg to grams 3)66.3 L to cubic centimeters 1 g = 10^6 micrograms = 10^6 ug. 14.8 g x (10^6 ug/1 g) = 14.8 x 10^6 ug = 1.48 x 10^7 ug. You do the others.

    asked on January 25, 2007
  20. Calculus

    A lighthouse is located on a small island 3 km away from the nearest point P on a straight shoreline and its light makes four revolutions per minute. How fast is the beam of light moving along the shoreline when it is 1 km from P?

    asked on February 3, 2013
  21. science

    benzene has a heat of vaporization of 30.72kj/mol and a normal boiling point of 80.1c. at what temperature does benzene boil when the external pressure is 445 torr

    asked on December 2, 2009
  22. physics

    a 5kg ball is suspended by two strings one horizontally attached to a wall and one attached to the ceiling at a 35 degree angle, determine the tension in the slanted string, determine the tension in the horizontal string (you have to use a free body

    asked on August 13, 2016
  23. spanish

    Ahora yo ___ en Panama. Mi hermana y yo ___ altas,rubias y delgadas.

    asked on February 29, 2016
  24. Chemisrty

    Would Flame test be useful for detecting metal ions present in a mixture of metal ions?? It is not a reliable method. Atomic spectroscopy would be much more accurate and sensitive than the human eye. To add to the information provided by Bob Pursely, which

    asked on October 23, 2006
  25. Chemistry

    What is the electron configuration called that has 18 electrons in the outer energy level and all of the orbitals filled? Noble gas configuration

    asked on November 16, 2006
  26. Public Speaking

    Why is knowing your audience an important part of capturing and maintaining their attention? What is the impact of culture? my response: The impact of culture weighs heavily into how you will connect and relate with your audience. Although easy to consider

    asked on February 3, 2010
  27. chemistry

    5.What is the major difference between the two-dimensional and three- dimensional models of ethane and methane? When might you choose to use a two-dimensional model rather than a three-dimensional model when representing one of the molecules?

    asked on October 2, 2015
  28. Finite MAth

    Assume that the set S has 7 elements. How many subsets of S have at most 3 elements

    asked on January 26, 2012
  29. Chemistry

    What conversion factor would you use to convert between these pairs of units? a)minutes to hours b)grams to milligrams c) cubic decimeters to milliters. There are 60 minutes in 1 hour. There are 1000 mg in 1 g. There are 1000 cubic centimeters in 1 cubic

    asked on January 25, 2007
  30. Math

    it cost $2 to buy a raffle ticket. if there are 500 tickets sold, and there is one first prize of $250, three second prizes of $100, and five third prizes of $50, what is the expected value of this raffle?

    asked on February 22, 2015
  31. Statics

    A former student of mechanics wishes to weigh himself but has access only to a scale A with capacity limited to 100 lbs and a small 24-lb spring dynamometer B. He discovers that when he exerts a pull on the rope so that B registers 22 lb, the scale A reads

    asked on September 15, 2014
  32. Physics

    A rock is falling towards the Earth. Suppose the action force is the pull of the Earth on the rock. What is the reaction force? I do not know how to find the reaction force.

    asked on October 11, 2009
  33. Education technology

    Which of the following helps prevent your computer from becoming infected with malicious code? Open all emails with attachments that aré from stanger Is sure your computer gets open up and the dust cleaned out of its regularly. install and regularly run

    asked on May 6, 2016
  34. Marketing (Help Check)

    24.Which of the following is characteristic of the organizational buying process? A)Multiple parties participate in purchase decisions. B)Negotiation between buyers and sellers is commonplace. C)Online buying over the Internet is widespread. D)Buying

    asked on November 8, 2009
  35. Calculus

    At 2:00 PM a car's speedometer reads 30 mi/h. At 2:10 PM it reads 50 mi/h. Show that at some time between 2:00 and 2:10 the acceleration is exactly 120 mi/h^2.

    asked on March 4, 2013
  36. chem

    what is the major product of this reaction CH2=CH-CH2CH3+H2O H2SO4

    asked on April 4, 2010
  37. Chemistry

    A rock has a mass of 127 g and displaces 32.1 mL of water. What is the density of the rock? density=mass/volume watch units.

    asked on February 1, 2007
  38. Education technology

    Which of the following is a sign that your computer may have been infected with malicious code? Your computer runs faster than normal The page you open are not distorted Your computer restarts on its own and then runs properly •• Your computer locks up

    asked on May 6, 2016
  39. physics

    A bob of mass = 0.250 is suspended from a fixed point with a massless string of length = 23.0 . You will investigate the motion in which the string traces a conical surface with half-angle = 25.0. What tangential speed must the bob have so that it moves in

    asked on October 3, 2010
  40. Chemistry (Check)

    classify each of these statements as always true, sometimes true, or never true. __ST___11)The unit of a conversion factor must cancel. __AT___12)the conversion factor for changing grams and milligrams is 1g/1000mg ___ST__13)multiple conversions factors

    asked on January 23, 2007
  41. T.V Prod

    Anyone know where i can find a short story(treatment). Like a one page movie story about anything Are you looking for a short story? If so -- this is one of my favorites, "The Most Dangerous Game," by Richard Connell.

    asked on January 10, 2007
  42. chemistry

    What volume (mL) of sulfur dioxide can be produced by the complete reaction of 3.82 g of calcium sulfite with excess HCl, when the final SO2 pressure is 827 torr at 44 degrees celsius?

    asked on August 6, 2009
  43. Education education

    Which of the following is not a quality of a successful AUP? State acceptable use for school computers Covers network etiquette Contains a code of conduct for Internet users Requires no signature•• Correct me

    asked on May 6, 2016
  44. Business Check

    1. The majority of CEOs blame unethical employee conduct on: the breakdown of traditional religious institutions. a failure of leadership to establish ethical standards. the increase in lawsuits used to avoid personal responsibility. the nation's business

    asked on March 14, 2009
  45. 10th chem

    Describe, in detail, how to make 3.0 liters of a 3.5 molar HCl solution from an 18.5 molar HCl stock solution.

    asked on January 17, 2012
  46. Language Arts

    (Use the passage to answer the question.) 8. Read lines 5 – 9 from “The Olympic Swimmer.” Swimmers swivel, splash, and kick Back and forth in a clear, blue pool; Like fish at play in Neptune’s sea. Swimming relaxed, and calm, and free. These stars,

    asked on December 6, 2016
  47. Chemistry (Check)

    Part B True-False Classify each of the statements as always true, sometimes true, or never true. 1.____ST______ one mole of any gas occupies a volume of 22.4 L. 2_____NT______ for a substance of known molar mass, the number of moles of a sample can be

    asked on February 5, 2007
  48. chemistry

    A 76.00-pound flask of mercury costs $151.50. The density of mercury is 13.534 g/cm3. What is the price of one gram of mercury?

    asked on September 5, 2013
  49. Calculus

    Two people start from rest at the same point. One walks east at 3 mi/h and the other walks northeast at 2 mi/h. How fast is the distance between the people changingg after 15 minutes?

    asked on February 3, 2013
  50. math

    A minor league baseball team plays 74 games in a season. If the team won 14 more than twice as many games as they lost, how many wins and losses did the team have?

    asked on November 11, 2008
  51. physics

    the initial velocity of a 4 kg box is 11 m/s, due west. after the box slides 4 m horizontally its speed is 1.5 m/s. determine the magnitude and the direction of the non conservative force acting on the box as it slides.

    asked on December 16, 2012
  52. Chemistry

    Which property below is not a general property of metals. a.ductile b.poor conducter of heat c.malleable d.high luster i think it's d its b Metal is an excellent conductor of heat Most metals have high luster, conduct electricity and are malleable. Thank

    asked on October 31, 2006
  53. Calculus

    Which are true about the differential equation dy/dx = 2x(4-y) I.will have a slope field with negative slopes in quadrant I II.will have a slope field with positive slopes in all quadrants III.will produce a slope field with columns of parallel tangents

    asked on June 20, 2018
  54. Physics

    A car with 60 cm diameter tires is traveling at a constant speed of 100 km/hr. What is the angular velocity of the tires in rad/s?

    asked on November 14, 2012
  55. Public Speaking Please Check

    1. (TCO1) The route used to transmit messages is known as: my answer:decoding encoding decoding feedback noise channel 2. (TCO1) As Claire tells about her trip to the museum, she notices Emma and Brian yawning. The information that Claire is receiving is

    asked on January 10, 2010
  56. math

    A midwestern music competition awarded 38 ribbons. The number of blue ribbons awarded was 3 less than the number of white ribbons. The number of red ribbons was 2 more than the number of white ribbons. How many of each kind of ribbon was awarded?

    asked on November 6, 2008
  57. World History

    What were the effects of Guttenberg's printing press? Scroll down and read the section called Impact of Printing -- very complete and very interesting. =)

    asked on September 30, 2006
  58. Organic Chem

    The following reaction is a single-step, bimolecular reaction: CH3Br + NaOH ---> CH3OH + NaBr When the concentrations of CH3Br and NaOH are both 0.150 M, the rate of the reaction is 0.0090 M/s. a) what is the rate of the reaction if the concentration of

    asked on November 9, 2011
  59. Math

    A car rents for $35 per day plus 20cents per mile. If x represents the number of miles jorge drives per day, 35+0.20x represents the cost of the rental. If jorge has $89 to spend for the daily car rental, what is the maximum number of miles he can travel

    asked on November 9, 2008
  60. Chemistry

    Problem If 1500 white blood cells are lined up side by side, they would form a row 1.0 inch long. What is the average diameter of a single white blood cell? (1 inch = 2.54cm) Set up a proportion. 1500/2.54 = 1/x x is the length of 1 white blood cell. Seems

    asked on January 23, 2007
  61. Chemistry

    What elements contains a full third energy level and what element contains the first p electron?? Here is an interactive site that will show you how the 1s, 2s, 2p, etc levels fill. Post your answers here if you want someone to check them. Also, you need

    asked on October 24, 2006
  62. Check Business

    4. Which of the following companies faces the problem of undercapitalization? A large corporation that has been hit with a major lawsuit because one of its products has a design flaw that has led to serious injuries. A small new company struggling because

    asked on April 12, 2009
  63. Interpersonal Communcation (Check)

    1.The relationship between language and meaning is often unclear and difficult because: My answer is C the sentences we create are very rarely unique even speech communities do not have common grammatical rules language is innate words have both denotative

    asked on January 17, 2010
  64. Physics

    You snap your fingers at the open end of a 1 meter long tube that is closed at the other end. With a microphone at the open end, you determine that it takes 5.8msec between the time you snap your fingers and the echo from the closed end is detected. Based

    asked on September 15, 2014
  65. maths

    There are a total of 50 ducks and goats in a farm. They have 154 legs altogether. How many ducks are there?

    asked on January 13, 2014
  66. physics

    An athlete swims from the north end to the south end of a 50.0m pool in 20.00s and makes the return trip to the starting point is 22.0s

    asked on August 21, 2013
  67. Math

    Kevin mowed 6 lawns in 8 hours. What was his rate of mowing in hours per lawn?

    asked on April 26, 2018
  68. The Crucible (ACT TWO)

    why have so many people been arrested? an what is motivating the officials? It's been far too long since I read that play to remember such specifics, but if you click on the C when you get to the above linked website, you'll

    asked on March 24, 2007
  69. Chemistry (Check)

    Completion is these correct. I can't figure out 5,7,8,9.. 1)equally 2)Non-polar 3)un equally 4)polar bond 5) 6)clipore interactions 7) 8) 9) When atoms are joined by a covalent bond, the bonding electrons are shared ___1____, and the bond is ___2___. When

    asked on January 3, 2007
  70. check and correct public speaking

    1. (TCO5) According to the text, non-verbal communication is: My Answer D continuous, emotional, ambiguous and both intentional and unintentional ambiguous, multi-channeled, intentional and both continuous and sporadic continuous, multifaceted, emotional

    asked on January 24, 2010
  71. Statics

    I have a structure that is constructed of circular rod that has a mass of 7 kg per meter of length. I must determine the moment Mo about O caused by the weight of the structure. From the origin (O), the structure is 2m tall (z direction), branches outward

    asked on September 24, 2014
  72. Really need help in Calculus Problem?!

    Use Euler's method with step size .2 to estimate y(.4), where y(x) is the solution of the initial value problem y=x+y^2, y=0. Repeat part a with step size .1

    asked on November 10, 2013
  73. abnormal psych

    # 1.44 (1 pts.) Dr. Green is an admitting psychologist at a psychiatric hospital. Unfortunately, every client she interviews receives the diagnosis of schizophrenia. Dr. Green's diagnostic system ignores A) reliability. B) variance. C) base rates. D)

    asked on November 27, 2012
  74. chem

    How many grams of zinc metal will react completely with 8.2 liters of 3.5 M HCl? Show all of the work needed to solve this problem. Zn (s) + 2 HCl (aq) ZnCl2 (aq) + H2 (g)

    asked on January 17, 2012
  75. Chemistry

    I would like to know since i was taught that all neutralisation reaction is exothermic, but why is sodium carbonate reacting with citric acid an endothermic reaction?

    asked on August 25, 2019
  76. chemistry

    Using the equations and enthalpy values provided, which mathematical expression can be used to determine the unknown enthalpy change of the decomposition of propane? 3 C + 3 O2 3 CO2 H =-1182 kJ 4 H2 + 2 O2 4 H2O H = -1144 kJ C3H8 + 5 O2 3 CO2 + 4 H2O H =

    asked on June 17, 2011
  77. Education technology

    Which of the following is an effect of intellectual property theft? Record companies lose money because people download songs for free online Book companies lose money because of used bookstores Book companies lose money because people download books

    asked on May 6, 2016
  78. Chemistry

    What is the strongest of the intermolecular forces The strongest is electrostatic forces between ions. But I don't call electrostatic forces between ions "intermolecular forces." They are

    asked on January 9, 2007
  79. calculus

    Use Euler's method with step size .2 to estimate y(.4), where y(x) is the solution of the initial value problem y=x+y^2, y=0. Repeat part a with step size .1

    asked on November 10, 2013
  80. science

    The pull of gravity keeps the Moon in orbit around Earth. The distance between the Earth and Moon is about 380,000 kilometers. A crew of astronauts leaves Earth on a Monday and lands on the Moon on a Thursday. They land on the side of the Moon facing away

    asked on February 2, 2012
  81. business help

    16. (TCO 2) Which of the following is the most important step to help improve America's business ethics? Middle management support. Training. -- Enforcement. Identification of the organizational ethics officer. 17. (TCO 2) Top leaders in government and

    asked on March 29, 2009
  82. Algebra

    You have to wrap gift boxes for your club project. Each box is 4.5 inches wide, 7 inch long, and 4 inches tall. What size sheet of wrapping paper do you need to cut to cover the box? Gift wrap paper comes in sheets which are 30 inches wide and 36 inches

    asked on October 4, 2012
  83. Math

    Suppose that P(x) is a linear polynomial with P(6)-P(2)=12. What is P(12)-P(2)?

    asked on April 7, 2018
  84. Calculus

    A boat is pulled into a dock by a rope attached to the bow of the boat and passing through a pulley on the dock that is 1 m higher than the bow of the boat. If the rope is pulled in at a rate of 1 m/s, how fast is the boat approaching the dock when it is 8

    asked on February 3, 2013
  85. chem

    How many grams of iron metal do you expect to be produced when 245 grams of an 80.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal? Show all of the work needed to solve this problem. 2 Al (s) + 3 Fe(NO3)2 (aq) 3 Fe (s) + 2

    asked on January 17, 2012
  86. math

    How to draw a picture grid to show 1.8 divided by 0.6? Write the quotient.

    asked on August 23, 2011
  87. Chemistry (Check)

    Classify each of these statements as always true, sometimes true, or never true. 7____AT____It is necessary to know the formula of a compound in order to calculate its percent composition. 8___ST_____If the percent by mass of carbon in methane, CH4, is

    asked on February 11, 2007
  88. Physics

    A car with 60 cm diameter tires is traveling at a constant speed of 100 km/hr. What is the angular velocity of the tires in rad/s?

    asked on November 14, 2012
  89. Math (Calc)

    Find the Exact value of Pi/24. I'm not sure whether to use a half-angle formula or a difference/sum of angles formula.

    asked on December 9, 2007
  90. Chemistry

    Which of the following is true about the freezing water ? I. H 2 O (l) > H 2 O (s) + energy II. Q>0 III. Molecular attractions are weakened a. I only b. I and II only d. I, II, and III

    asked on May 14, 2019
  91. science-chemistry

    a bicycle tire that has a volume of 0.85L is inflated to 140 pounds per square inch. What will be the pressure in the tire if the number of moles of gas is doubled?

    asked on April 29, 2012
  92. science

    Two stones are thrown vertically upward from the ground, one with three times the initial speed of the other. Assume free fall. If the faster stone takes 9.00 to return to the ground, how long will it take the slower stone to return? If the slower stone

    asked on September 19, 2006
  93. Please Check (Public Speaking)

    1. (TCO4) Cultural identity: A comes from our ethnicity and race becomes more important to people as they get older is determined by the importance that we assign to membership in cultural groups doesn't matter if you are a member of the dominant culture

    asked on February 7, 2010
  94. Math

    How do I solve for N? 10/16 = n/56

    asked on October 29, 2008
  95. Chemistry

    I Have Two Questions 1)How would you calculate the number of nanometers in 8.1 cm? 2)What is the equivalent of 0.35 lb in grams? You need to learn to do deimensional analysis. It's easy. 0.35 lb to grams We know there are 453.6 g in a lb. We take the given

    asked on January 25, 2007
  96. Chemistry

    what particles are free to drift in metals? cations, electrons, neutrons, or protons? and what is the SI unit of mass? is it kilogram kg is correct for the SI unit of mass. Electrons conduct electricity; therefore, the electrons must be free to move in

    asked on January 9, 2007
  97. CHEM

    what three hydrogen-containing polyatomic anions are essential components of living systems? What does progesterone acetate do in the human body? What is the formula for the acetate ion? Maybe you mean list three anions containg H. OH, HCO3, HPO4 are all

    asked on January 5, 2007
  98. CHEM..

    What is the major advantage of the stock system over the old naming system? The stock system is well understood world wide. And, it allows for multivalent atoms. One advantage is that some elements have more than two common valences; therefore, the "ous"

    asked on January 4, 2007
  99. Math

    Determine all possible values of the integer m such that the median and mean of the five integers 3, 6, 9, 11 and m are the same.

    asked on November 10, 2018
  100. Accounting

    What is the closing entry to allocate a net income of $48,000 to Sara, Ellen, and Mary? Respective capital balances are $30,000, $40,000, and $30,000. No agreement was made for division of income. A. Debit Income Summary $48,000; credit Sara’s Capital

    asked on June 9, 2014


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