# Questions Asked onJanuary 15, 2010

1. ## chemisty

How many moles of molecules are there in 250 grams of hydrogen nitrate?

2. ## Geometry

How do you go about finding the lateral area of a trianglar prism? Ex: The base of a triangular prism is an equilateral triangle with a perimeter of 42 cm. If the height of the prism is 10 cm, find the lateral area. Thanks for the help in advance

3. ## Chemistry

Rank the following ionic compounds by lattice energy. Highest to Lowest LiCl MgO Na2O Beo Na2S

4. ## math

the scale factor for two figures is 3(new figure)to 2(old figure)the new figure has a side of 9.9 what is corresponding side in the old figure? A)6 B)6.6 c)6.06 D)6.16

5. ## math

you traveled 189 miles on 7 gallons of gasoline. at this rate how many gallons of gasoline would you need to travel 297 miles? A)11 b)14 C)20 D)15.5

6. ## physics

Determine the percent error in this approximate value. (There are 365.24 days in one year.)

7. ## us history

Why did Alexander Hamilton propose paying the entire national debt at its face value?

8. ## earth

1) On a horizontal straight line graph of distance (vertical axis) against time, which variable is not changing? a) Distance b) Time c) Wind speed d) Temperature 2) A graph of distance against time is a straight line with a slope of 1. If you wait for 3

9. ## geometry

How do you find the lateral area and perimeter of a pentagonal pyramid? ex: The slant height of a regular pentagonal pyramid is 6 cm, and the length of each side of the base is 3 cm. Find the lateral area.

10. ## physics

A golfer rides in a golf cart at an average speed of 3.10 m/s for 26.0 s. She then gets out of the cart and starts walking at an average speed of 1.20 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and

11. ## physics

A block starts at rest and slides down a fric- tionless track. It leaves the track horizontally, flies through the air, and subsequently strikes the ground. What horizontal distance does the block travel in the air? Answer in units of m. What is the speed

12. ## algebra

One number is 4 times and then positive number. The sum of the two numbers is 620. Find the two numbers.

13. ## Chemistry ....Please Double check

If 4.55 g of sodium sulphide and 15.0 g of bismuth nitrate are dissolved in separate beakers of water which are then poured together, what is the maximum mass of bismuth sulphide, an insoluble compound, that could precipitate? What reactant was the

14. ## physics

lots of questions 1) a 2N and 6N force pull on an object to the right and a 4N force pulls to the left a 0.5 kg object what is the net force on the object 2)a 20mkg bike accelerates at 10m/s2 with what force was the person pedaling 3)if a person is pushing

15. ## physics

if a person pulls on a cart to the right with a force of 10N and a second person pulls to the left with a force of 3N what is the net force (+ direction)on the cart

16. ## Math

How many ways can 3 students be arranged in three chairs? I'm not really sure but I think that the answer will be 9 (nine), is that correct..?

17. ## Maths

A sum of money was shared among Amos, Benny and Cathy. Amos received 1/4 of the sum. Benny received 2/5 of the remainder and Cathy received the rest. As a result, Cathy received \$150 more than Benny. (a) What is the amount received by Amos? (b) Find the

18. ## math

a swimming pool is 60ft long and 35ft wide. a model of the pool is 9in.long.how wide is the model? A)3.25 B)4.25 c)5.25 d)6.25

19. ## geometry

how do you find the height of an isosceles triangle only knowing the lengths of all three bases? EX: There's isosceles triangle ABC with vertex angle B. AB= 5x-28. BC= 2x+11. AC= x+5

20. ## chemistry

1) 14 moles of Ar 12 moles of N2 2 moles of BF3 If the total number of mol present in the mixture visualized is 1.43, calculate the number of mol of N2. 2) 11 moles of N2 4 moles of CSH4 If the total number of mol present in the mixture visualized is 1.68,

21. ## math

a blueprint for a house shows a bedroom being 5.5 inches wide.the scale used to create the blueprint is 0.50in=1ft what is the actual width of the bedroom? A)11 b)10 C)9 D)8

22. ## chemistry

The Rydberg equation (1/lambda=R/ni^2–R/nf^2) can be treated as a line equation. What is the value of nf as a function of the slope (m) and y-intercept(b)? by GC 1/lambda = R/ni^2–R/nf^2 y = mx + b (standard form) of a linear equation) x = (y-b)/m Let,

1) Find the values (if possible) of the six trigonometric functions of o if the terminal side of o lies on the given line in the specified quadrant. y=1/3x 2)Evaluate (if possible)the sine, cosine, and tangent of the angles without a calculator. (a)

24. ## Physics

My question is how does metal corrosion affect a reed switch? This question is from my textbook. We are following cambridge igcse science.

25. ## math/probability

A bag contains 7 red chips and 10 blue chips. Two chips are selected randomly without replacement from the bag. What is the probability that both chips are red?

26. ## chemistry

If the ratio of the rate of effusion of an unknown gas to that of CO under the same conditions is 0.7978, calculate the molar mass (g/mol) of the gas

27. ## college algebra

When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= -16t^2 + v*t + k gives the height of the ball at any time, t in seconds, where “v” is the initial velocity (speed) in ft/sec and “k” is the initial height in

28. ## chemistry

pH Indicators 7 test tubes Added 5mL of water of 0.1 HCl and 5mL of water to 1st test tube. Poured 9mL of water to remaining 6 test tubes. Poured 1mL of solution from 1st test tube to 2nd. Poured 1mL from 2nd to third. Poured 1mL from 3rd to 4th. " " 4th

29. ## physics

Which of the following are not transverse waves? a) Water ripples in a small pool. b) Sound waves traveling through water. c) Radio waves traveling through space. d) Microwaves inside a microwave oven. e) The vibrations on the surface of a drum.

30. ## chemistry

Calculate the average kinetic energy (J/molecule) for a molecule of an ideal gas at 382 K?

31. ## physics

a sled is being pulled to the left by 5 dogs, each dog pulling with 6 newtons of force what is the net force

32. ## Math

20. A bag contains 7 red chips and 10 blue chips. Two chips are selected randomly without replacement from the bag. What is the probability that both chips are red

33. ## Pre-Calculus

cos^2(x) + sin(x) = 1 - Find all solutions in the interval [0, 2pi) I got pi/2 but the answer says {0, pi/2, pi} Where does 0 and pi come from for solutions? When simplifying I just get sin(x)=1

34. ## just for knowledge

How much do my shares worth if Authorized capital 60,000 shares and I own 500 shares at \$1.00 par value. Thank You

1) Find two values of o that satisfy the equation. Give your answers in degrees and radians. Do not use a calculator. (a) sec o = 2 (b) sec 0 = -2

36. ## Social Studies

Can you help me with this other question Which african countries were not controlled by a foreign power in the years 1880-1914. thanks:)

asked by just another pretty face
37. ## Religious

Explain the concept of hedonism an how is this concept seen as the dominant theory in our society today.

Sam is sitting in her fishing boat watching a trout swim below the surface. She guesses the apparent depth of the trout at 2.0m. She estimates that her eyes are about 1.0 m above the water's surface, and that the angle at which she's observing the trout is

39. ## math

i can type 19 words in 38 seconds how many can i type in60 seconds? A)25 B)30 C)40 D)50

40. ## Physics

If you cut a magnet in half does each half become a magnet. Give a clear explanation to your answer.

41. ## math

Decrease a number by 5, divide the result by 2, then add 17 and multiply by 5. If the final result is 100, with what number did you start?

42. ## child care

what are 10/ some questions to ask your parents about life with kids for example; I have these ones do you like life now with kids what made you want kids were you ready for kids anymore suggestions? thank you(:

43. ## english

what is being said in the following line: “Foul devil, for God’s sake, hence, and trouble us not; For thou hast made the happy earth thy hell, Fill’s it with cursing cries and deep exclaims.”

what is the index of refraction of a medium in which the speed of this radiation is 2.54X10^8 m/s? I don't even know where to start...

45. ## English Lit

Need help on writing a prose satire and how it changes the behavior?

46. ## child development

what level and stage he or she is at developmentally, and list some characteristics demonstrating the nature of the stage. i picked adolecent can you help me find some sites plz

47. ## physics

Dolphins ca detect small fish whose size is about equal to the wavelength of the sound the dolphin makes with its echo-location system. A dolphin emits a chirp at a frequency of 220 kHz. Using the speed of water as 1530 m/s, what is the smallest fish this

48. ## physics

two loudspeakers are set to produce waves at 255Hz and 258Hz respectively. a tuning fork of unknown frequency is sounded together with each speaker in turn. with the 255Hz speaker it produces 10 beats in 10second and with the 258Hz speaker it produces

Bayside insurance offers two health plans. Under plan A, Giselle would have to pay the first \$60 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay the first \$250, but only 20% of the rest. For what amount of mediacl bills will

50. ## world history

How did the Reformation in Great Britain affect the colonization of the New World? Explain

51. ## child development does it sound ok

During the early adolescence (ages 12-14) the teens are very moody. As puberty is in full swing they will experience rapid body changes. The teens are sensitive to their body as it changes. Girls tend to be less fulfilled about their body image. Most want

52. ## Religions of The World

Assignment World Religions Report (The Class Final) • Resources: Appendices A, B, & F • Due Date: Day 7 [Individual] forum • Submit your World Religions Report. For this project you will choose one of the following religions: Buddhism, Hinduism,

53. ## childhood

The major emphasis of movement programs for young children is the development of concepts. Wich of the following three major categories are they broken into? A Body,space, and time B What,who,where C Awareness, knowledge,and understanding D Movement, skill

54. ## geometry

What is the lateral area of a cylinder? How do you find it? Is there a formula?

55. ## HISTORY

PLLEASE HELP ME i have no clue what to put. Write a series of five journal entries from the point of view of a member of a tribe that has been conquered by the Incas. Make sure that you bring out positive and negative aspects of Inca rule. Each journal

56. ## Social Studies

I can tell everyone has some different ideas as to favorite teaching methods. I was curious about something, so I thought I would throw it out to the group. Do you think that one of these methods should be used the majority of the time and then be

57. ## algebra

53.27 plus 30% is what

58. ## IT web

What are good coding practices? How can these be integrated into the learning of how to code in XHTML? What effects will it have on a web page if container tags or stand-alone non-empty tags are not used when coding in HTML?

59. ## chemistry

Given the plot of 1 vs 1ni2, what is the value of nf? y=-0.011x+0.0027 R^2=1 1/n(initial)^2=.04 1/lambda=.0023

60. ## English/ History-Urgent

Was there a person in history whose personality changed dramatically in his/ her life? Who was he/ she? I did google search but still had no ideas? Can someone please give a name of person who changed dramatically in history? Any help will be appreciated.

6-5*8+2^3

62. ## social studies

I need to know plants vegetation in alberta

63. ## Writing

Which guidelines are less important to a business document but more important to a academic paper.

64. ## chemistry

1) 15 moles of Ne 10 moles of N2 Enter the mass percent of Ne MM[Ne]=20.18 g/mol, MM[N2]=28.01 g/mol

65. ## why was I banned?

Why was I banned from my previous post, I was not able to post anything new.

66. ## physics

How do you convert from nanometres - metres and vice versa? I need to convert 0.6 X 10-6 (the -6 is an expom to nm...

67. ## geometry

In geometry, can a counterexample be used to determine if a conjecture is false or not?

68. ## english IV

Write a prose satire aimed at changing the behavior or attitude of your audience.

69. ## For all teachers

Does anyone know if Sra will be on here today because I really need her to check my french.

70. ## algebra

SOVING SYSTEM OR EQUATIONS BY ELIMINATION

71. ## math

the sum of a numbers is 15 and their difference is 4. form a pair of simultaneous equations and solve to find the numbers.

Debate the benefits and drawbacks of both market and mixed economies on the Discussion Board. Present questions for any opponent's arguments, looking for holes and inconsistencies. Attempt to answer any arguments made against your position.

73. ## english

distinguish between the prejudicial and nonprejudicial use of rhetorical devices?

74. ## accounting

describe briefly how businesses make capital budgeting decisions.

75. ## college

two organizational departments in a business.

76. ## health

Myelin visited my office yesterday complaining of numbness in his right leg and face. He also has been experiencing muscle weakness and mile depression. i noticed a delay in his visual response in both eyes. what nervous system disorder is he suffering

77. ## biology

why is the cycle of some types of cells faster than in others, and which part of the cell cycle is the most variable in length

78. ## to Scooby

See below: http://www.jiskha.com/display.cgi?id=1263526317

79. ## math

Find (if possible) the trigonometric function of the quadrant angle. sec 3pie/2 I really do not know how to do this.

80. ## science

Post a 200- to 300-word response to the following: In your own words, summarize each of the major theories of biology. • Choose one theory and provide an example of how this theory relates to the news today. • Use at least one outside reference in

81. ## Academic English Literature, Restoration & 18th c

How to write a prose satire aimed at changing the behavior or attitude?

82. ## Religious

why is the concept of determism often regarded as more important than christianity.

83. ## Hum130

Assignment World Religions Report (The Class Final) Due Sunday â€¢ Resources: Appendices A, B, & F â€¢ Due Date: Day 7 [Individual] forum â€¢ Submit your World Religions Report. For this project you will choose one of the following religions:

84. ## childhood

The major emphasis of movement programs for young children is the development of concepts. Wich of the following three major categories are they broken into? A Body,space, and time B What,who,where C Awareness, knowledge,and understanding D Movement, skill

I need some help editing this paper. Public’s right to know V.S You’re right to privacy When does the public right to know become unreasonable? Does an individual’s privacy become irrelevant when the public’s safety is concerned? When the

86. ## social studies

I need to know lots of animals that live in alberta and about thier lives.

87. ## French

Could you check these thanks Directions: Answer as indicated, using the pronoun en. Part 1 1. Tu as de l'aspirine? Answer: Oui, j'en ai. 2. Tu as du sirop? Answer: Non, je n'en ai pas. 3. Tu as des médicatments? Answer: Non, je n'en ai pas. 4. Tu as de la

88. ## Writing

Which guidelines are most important for formatting?

89. ## English

I have to debate on legal prostitution. My view point is against legalizating prostitution... Can you help me find clean sites/info? I need to have logical, emotional, and ethical appeals...

90. ## hca210

One major problem for the elderly is the lack of coverage in covering all their expenses for long-term care. In many traditional cultures, the elderly are taken care of by their children. However, because that is not the case here, an alternative method

91. ## com 140

name 3 reasons for writing an informative message?

92. ## religous

from the 4 theories which is least likly to bene fit from wining the lottery and why

93. ## physics

A car travels 0.90 km at an average speed of 84.8 km/h and then 0.97 km at an average speed of 41.6 km/h. What is the car's average speed during the 1.87 km interval?

94. ## spelling/analigies

wouldnt:couldnt::green:?? i really need help...??

95. ## math

A student reports that it is impossible to mark a product up 150% because 100% of something is all there is. What is your response?

96. ## social studies

what is the population of alberta 2010

97. ## social studies

how many people have joined alberta since 2009 ?

98. ## data management

It is 21% likely that any particular person has seen the latest box-office hit. If you are going to a party where you will see 10 people, how likely is it that fewer than 2 of the 10 have seen it?