BRYAN

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

2. 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.

3. 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.

4. Education technology

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

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

6. 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)

7. 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°.

8. 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.

9. 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.

10. 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

11. Calc

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

12. 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

13. 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?

14. 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?

15. 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

16. 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

17. 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?

18. 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

19. 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,

20. 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

21. 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

22. spanish

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

23. 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

24. 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.

25. 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

26. chem

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

27. 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

28. 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?

29. 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.

30. 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

31. 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

32. 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

33. 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

34. 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?

35. 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

36. 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

37. 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

38. 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.

39. 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

40. 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

41. 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

42. Finite MAth

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

43. World History

What were the effects of Guttenberg's printing press? http://www.answers.com/topic/printing-press Scroll down and read the section called Impact of Printing -- very complete and very interesting. =)

44. 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

45. 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

46. 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

47. 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

48. Chemistry

What is the strongest of the intermolecular forces http://wine1.sb.fsu.edu/chm1045/notes/Forces/intermol/Forces02.htm The strongest is electrostatic forces between ions. But I don't call electrostatic forces between ions "intermolecular forces." They are

49. 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

50. 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

51. 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?

52. Math

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

53. 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

54. 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)

55. 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 =

56. 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

57. 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?

58. 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?

59. 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

60. 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

61. 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

62. maths

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

63. 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

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

65. 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?

66. math

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

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

68. 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

69. The Crucible (ACT TWO)

why have so many people been arrested? an what is motivating the officials? http://www.sparknotes.com/lit 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

70. 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.

71. 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?

72. physics

A 0.4 kg hockey puck moving at 30 m/!@#\$%^&s a straw bale, stopping in 1.4 s. What impulse was imparted to the hockey puck?

73. 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

74. 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

75. 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

76. 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.

77. 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.

78. 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)

79. Critical Thinking

What is a personal mission statement, and how can it be helpful during college?

80. Math (Pre-Calc)

If any body could help me figure out these problems. I would love to know how to do it, and not just get an answer, however if you don't have the time to explain it to me, then the answer will suffice. 6. (1 pt) Solve the following equation in the interval

81. Modern World History

World War One Can someone tell me the final chain of events that led the world to war.. What was the final chain of events that led the world to war? http://en.wikipedia.org/wiki/World_War_I Be sure to go to the box which serves as a table of contents for

82. English

The strategies for writing positive or neutral message. is my response correct?: In the opening avoid personal information state your main idea so it wouldn't be overlooked. In the body of the message provide reasons and/or details for the main idea. Close

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

84. 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

85. Algebra 2

Q: (x^2-9/x^2-5x)(5x-x^2/x^2-x-12)(x^2-8x+16/x-4) my answer: -1 How i solved: crossed multiplied 2 of the 3 sets of fractions the multiplied the answer to the remaining one and simplified. Can you check that my work is correct?

86. 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

Identify the pronouns in each sentence. Then decide if each is nominative (N), objective (O), or possessive (P). Write your answer according to the following example: Q: My favorite actor is better than yours. A: My; P, yours; P 1. Why wasn't he invited to

88. 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

89. 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

90. Calculus

A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a speed of 1.6 m/s, how fast is the length of his shadow on the building decreasing when he is 4 m from the building?

91. maths

A cylindrical water tank has a diameter of 140cm.To begin with it is full of water.A leak starts at the bottom so that it loses 33l of water in 1hour.How long will it take for the water level to fall by 30cm?

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

93. Chemistry

Why are the properties of alloys gnerally superior to their constituent components? In most cases, not all, mixing metals forms eutectics (sometimes called eutectic mixtures). These eutectic mixtures are the combination of the elements that form the lowest

94. Chemistry (Check)

Fill In the Blank Compounds that are formed when two or more atoms combine to form molecules are called __________. is it diatomic molecule. yes.

95. analytic geometry

The line L with equation y=mx+n passes through the point (1,1) and is perpendicular to x+3y=1. Find the value of n.

96. Physics

Do the following calculations for a 1150 kg car. a. How much work must be done on the car to accelerate it from 0 to 60 km/h. **** Hi I am looking for advice on my questions below. This is my attempt at answering them.. Am i at least on the right track?

97. 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

98. 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.