# Questions Asked onNovember 29, 2006

1. ## chemistry

The enthalpy of vaporization of benzene, C6H6(l), is 33.9 kJ mol?1 at 298 K. How many liters of C6H6(g), measured at 298 K and 88.7 mmHg, are formed when 1.90 kJ of heat is absorbed by C6H6(l) at a constant temperature of 298 K? not sure what formulae to

2. ## discrete math

let d be a positive integer. Show that among any group of d+19not necessarily consecutive) integers there are two with exactly the same remainder when they are divided by d. The possible values of the remainders are 0, 1, 2, ...d-1. So there are a total of

3. ## science

If the country is not increasing in population growth rate, what are some socio/economic problems that might occur? In such a situation, the average age of the population increases and, unless there is an actuarily sound retirement funding program (instead

4. ## math

a house has two rooms of equal area. one room is square and the other room a rectangle, four feet narrower and 5ft longer than the square one. find the area of each room? let x = dimensions of the square. Rectangle then is x-4 and x+5 Set areas equal. area

5. ## math

a childs bank contains \$6.30 in dimes and quarters. there are twice as many dimes as quarters. how many of each kind of coin are in the bank? let d = #dimes and q=#quarters. The total is worth \$6.30. eqn 1 is 0.10*d + 0.25*q=\$6.30 eqn 2 is 2*#quarters =

6. ## math

a rectangle is twice as long as it is wide. if both of its dimensions are increased by 4m, its area is increased by 88m^2 find the dimensions of the original rectangle Original rectangle = w for width and 2w for length. Area = w x 2w Larger rectangle = w+4

7. ## math

a poster is 25cm taller than it is wide. it is mounted on a piece of cardboard so that there is a 5cm border on all sides. if the area of the border alone 1350cm^2, what are the dimensions of the poster? It is almost a must to draw a diagram but I can't do

8. ## 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

9. ## Math

For two consecutive integers, the sum of the smaller and twice the larger is 38. What are the integers? Plz explain. Thanks 2(a+b)=38 Therefore: a+b+(2(a+b)=38 a+b+2a+2b=38 3a+3b=38 3(a+b)=38 I got as far a here. I don't know if this helps. My last stop

10. ## physics

i don't understand the projectile motion...my teacher said...it's a motion of a body confined to a vertical plane, perpendicular to Earth's surface... I don't get it, can anyone explain to me clearly???? plzzzzz....THX!!!! If your teacher said that, she

11. ## science

Did Leonardo Da Vinci invented scissors? http://www.google.com/search?hl=en&safe=off&as_qdr=all&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=+%22invented+scissors%22+da+vinci&spell=1

12. ## math(apology)

Sorry[samantha,jason,mary-beth,john,tyrik,aaron,katie,and tiffany]i will send you some work to show you i tryed] Whoever you are, Your IP address is being recorded. Stop the impersonation of a teacher now, or you will be banned. We just don't have time for

13. ## Chemistry (Check)

True or False? In a structural formula a shared pair of electrons is represented by two dashes. Is this True? Fill in the blank Structural formulas show the arrangement of____________ in molecules. is it electrons? A shared pair is represented by two dots.

14. ## HELP

how can you tell the difference between a positively charged and a negatively charged object by using a electroscope Ashley: Please include the subject in your questions: Science, or Electricity would have been appropriate here. You can only determine the

15. ## math

a painting is 3 inches longer than it is wide. it is set in a rectangular border that is 2 inches wider than the painting on each side. if the area of the border is 100in^2 what are the dimensions of the painting? Here is a problem I worked for Jason that

16. ## math

what is the largest prime number you will need to check to find all the prime numbers less than 100 Here is a site that I found searching Google with the key words, "prime numbers." http://mathforum.org/dr.math/faq/faq.prime.num.html I hope this helps.

17. ## Shear Modulus

Hi there, quick question: How would you find the shear modulus of a ruler (plastic 12 in)? I don't exactly get it. You have to bend it which will help you...??? -Thanks! Bending it like a beam, or measuring its vibrational frequency when clamped at one

18. ## math

a corner lot that was originally square lost 185m^2 area when one of the adjacent streets was widened by 3m and the other was widened by 5m. find the new dimensions of the lot.(hint:let x equal the length of a side of the original square lot) It might help

19. ## math

a bus takes 12 hours to travel the same distance that an airplane travels in 1.5 hours. the average speed of the airplane ia 120 km per hour faster than five times the average speed of the bus. what is the average speed of the bus? let x represent the

20. ## math

at the beginning of the year, allison and sean togethor had 24 papergack books. during the year,allison doubled her supply but sean lost three of his. togethor they had 46 books at the end of the year. how many books did each have at the beginning of the

21. ## English

Which word pair is a set of antonyms? anxious,confident eager,excited worried,concerned depressed,sad Antonyms are words that mean the opposite of each other. Which pair is like that, do you think? http://www.thesaurus.com

22. ## science

these are my homework questions can you answer any???there are 4 1 A pupil placed some magnesium in a gas jar of oxygen How could the rate of reaction between these substances be increased 2 Complete the word equation for the reation magnesium and oxygen 3

23. ## math

what is an example of a positive corralation using a scatter graph? please help!!!!!!!!!!!!!!!!!!!! I don't know how to place that image in this reply. However, I will try to describe it. If both the abscissa (horizontal or X axis) and the ordinate

24. ## math

janet has \$8.55 in nickels,dimes,and quarters. she has 7 more dimes than nickels and quarters combined. how many of each coin does she have? Here is a a very similar paroblem See if this doesn't help. http://www.jiskha.com/display.cgi?id=1164829990

25. ## Math - Exponential Notion

Can someone explain this to me please, I cannot help my son with his homework Do you mean exponential notation? y ^ x = "y raised to the x power" Yep - sorry what do u need help with? Yes - I am not remembering how to do powers - etc. can their be a number

26. ## chemistry

The density of acetone vapor in equilibrium with liquid acetone, (CH3)2CO, at 33.1°C is 0.832 g L?1. What is the vapor pressure of acetone at 33.1°C, expressed in kilopascals? agian i am confused with formulae, hoe you can helpm thanks! change 0.832 g to

27. ## Project Management

What are the important practices used by your company (or in your experience) for successful partnering, and what steps can be taken to improve your Company¿s partnering effectiveness? Partners need to be chosen carefully: Partners must have common

28. ## Free/Slave states of 1860

PLEASE HELP ME!!!!!!!!!!!!!! I need to know how many free states there were in 1860 19 or 18.One website says 18 while the other says 19. It would help me a lot if you name the slave states too or give me a good reference. One website said there were 15

29. ## Math

How can I convert mm to cm and cm to mm Look at the metric system, a part of which is shown below. The prefixes are kilo hecto deka unit--grams, liters, meters, etc. deci centi milli Stearting anywhere on the scale of prefixes above, count the number of

30. ## Physics

Ok, so this probem is kinda complicated, so ask me if you need clarification. This problem deals with Impulse and Momentum. There are two balls hanging vertically from a horizontal plane. Ball A is pulled back and is set up to strike ball B. Given for ball

31. ## life!+ english!

“What he could do he did.” How does this statement relate to our lives? I think what the teacher meant is, "How does that statement relate to your life?" This is something you need to answer for yourself. I cannot relate it to your life. You might be

32. ## Science

Use the electron theory to explain how one object can be negatively charged and another can be positively charged. help If electrons are negative, removing them will leave a net positive charge (net meaning fewer negative electrons than postivite protons).

33. ## Math

Could someone help me with this question? Make up a set of 7 numbers having the following landmarks: mode 21 median 24 maximum 35 range 20. 15, 21, 21, 24, 27, 29, 35 The mode (21) is the number that occurs most frequently. The median (24) is a number in

34. ## ?

what happens the first time that buck answers the call of the wild? http://www.sparknotes.com/lit/call/ =)

35. ## Accounting question

How are posting procedures for closing entries and for other general journal entries different?

36. ## Biology URGENT!!!!

I need to know if flagella are on plant or animal cells. I need to know the same for cilia. THIS IS DO TOMMOROW!! Thank you go to google and type in flagella and cilia http://en.wikipedia.org/wiki/Cillium http://en.wikipedia.org/wiki/Flagellum

37. ## English

What kind of effect does alliteration create in wrting? http://en.wikipedia.org/wiki/Alliteration

38. ## Science

What type of charge moves through conductors? Explain how it moves. thanks Electrons are the current carriers in metals. Electrons have a negative charge. Electrons in metals are loosly bound to atoms, so an external electric field will cause them in their

39. ## Chemistry

in a cylinder that was 9.0 mm in diameter and 215 mm in length. I want to know the temperature (in Kelvin) and pressure (in atm) within this tube after combustion assuming that the cork did not “shoot” out of the end, i.e., the pressure was contained

40. ## computer science

Algorithm for Binomial Numbers Task Binomial numbers (or binomial coefficients) are important positive integers that arise frequently in computing and mathematics. A function to compute binomial coefficients will have two inputs: n and k. The corresponding

41. ## Economics

From reading a paragraph, I gathered following facts. Bills and coins outside the bank: 175 Checkable deposits 418 savings and time deposits 1782 currency inside bank 28 central bank deposit 186. so.. the banks reserve is 186+28=214 monetary base: 186 +

42. ## math

jim's sandwich cost the same as the combined cost of his salad and milk. the sandwich cost three times as much as the milk. the salad cost &0.20 more than twice the cost of the milk. how much did jim's lunch cost? The Answer is:0.50 Cents

43. ## math (algebra one )

Write an equation of the line that passes through each point with the given slope. (-3,-4) ,m=3 a. y=3x+13 b.y=3x-5 c.y=-3x+5 d.y=3x+5 ?? The general equation for a sraight line is in the form y=mx+b where m is the slope and b is the y intercept. You are

44. ## math

if a 13 by 9 inch brownie pan is divided into 20 equal size brownines, what are the dimensions of one brownie? Divide 13 by 5, and 9 by 4 To get the dimensions. 13 divided by 5 is 2 3/5 9 divided by 4 is 21/4 please explain or show equation in fractions

45. ## science

how does a metamophic rock form. http://www.cdli.ca/CITE/rocks_metamorphic.htm http://gpc.edu/~pgore/Earth&Space/metamorphic-notes.html

46. ## Microeconomics

The marginal costs and prices of a purely competitive market system accurately measure: a. Both spillover costs and spillover benefits b. Spillover costs but not spillover benefits c. Spillover benefits but not spillover costs d. Neither spillover costs

47. ## Social Studies

where would I find pictures of the pueblo indians and information about the food they ate back in the 1600's? http://images.google.com/images?hl=en&q=pueblo+indians and

48. ## English

Which of the following words is bias free? A. Mailman B. Spokesman C. Firefighter D. Waitress Would it be (C)firefighter? Thank you for your help! yes.

49. ## microeconomics

what is ment by allocative and productive efficency stuff

50. ## science

How does osmosis explain the fact that a watery syrup forms when you put sugar on strawberries? The addition of sugar to the outside of the strawberry makes a solution that is more concentration outside the strawberry than inside the fruit. Water moves

51. ## Economics

The table below shows annual demand (in 100,000 units per year) for Widgets. Use this information to calculate a linear trend forecasting model using regression analysis. Use your trend estimate to forecast demand for the years 1995 and 2000. Year Demand

a rectangular swimming pool has a perimeter of 24 feet. what should the dimesions of the pool be to create a maximum area? what would this area be? If x is the one side's dimension, the adjacent side's dimension is 12 - x. (That makes the perimeter 24).

53. ## Finance

What minimum reduction in the time to collect and process each check is needed to justify use of the lock-box system?

54. ## math

find 2 prime numbers that if multiplied would generate a 400 digit number I'm not sure what you want. 400 is a three-digit number, and 4000 is a four-digit number. I don't think you want a "400 digit number." Assuming you want a number with a value over

55. ## what does this mean+ English!

What does this mean: “he was little or nothing but life.” What are you taking this from? I may be able to help. It sounds like what he's saying is that he was not very important, nothing more than a mass of bones taking up space. Meaning that he didn't

56. ## Math

How do you convert fractions to a percentage? give me an example and ill explain what is the percentage for 7/4? divide 7 by 4. 1.75 multiply by 100 175 7 is 175 percent of 4. so, 175% = 7/4?

57. ## computer

what is insert? Are you referring to the Insert key? If so, here's what happens when you press it: Whatever you type will wipe out whatever is already typed if you are entering text in the middle of a sentence or paragraph. I try to leave it off. It's more

58. ## math

A right cicular cylindrical can is to be constructed to have a volume of 57.749 cubic inches (one quart). The sides of the can are to be formed by rolling and welding a strip of metal, which may be purchased in rolls with width equal to the desired height

59. ## Music

I have a couple of questions... 1. I have to transpose a musical piece that is in B flat. I need to move it up a major 3rd from that. What key would that be in? 2. I have questions about diminishing intervals as well. Please help.

60. ## listnening?

How important is effective listening? It is fantastically important. Many miscommunications occur because of ineffective listening. These miscommunications can cause hurt feelings, frustration, fights and even wars. For effective listening, you first have

61. ## science

Is it TRUE that a Cruise Liner, QE2, moves only 12 inches on 1 gallon of diesel fuel? No. According to specifications available online, cruising speed, the QE2 moves 49 feet per gallon consumed.

62. ## science

How was theMicrowave oven was invented? Was it when a researcher walked by a radar tube and a chocolate bar in his pocket melted?

63. ## Math

When the quotient of two numbers is the same as the first factor, what do you know about the second factor? That the second factor will be different? idk... i forgot about that one

64. ## Math

4x+5=25 4(5)+5=25 x=5 4 is the correct answer Are u still on??

65. ## social studies

how do we really know if the stuff in the S.S book is really real.we don't know because we wasn't there Most of it is true. Resercher and other have worked many years and by using technonly and other eveidence have figured out how people lived and ect. So

66. ## social studies

what did they call the mummy shaped figure that worked in the afterlife's fields for the mummy? http://www.carlos.emory.edu/ODYSSEY/EGYPT/shabtis.html

67. ## social studies

what exactly does increasing/decreasing population growth say about the country? also, if birth and death rates remain the same, what is the population pyramid going to look like in a couple of decades? It depends on who is dying. If infants are dying, it

68. ## HELP History HELP

Were there 19 states in the union?? http://www.armystudyguide.com/content/army_board_study_guide_topics/flags/dates-the-states-entered-.shtml There were 19 states until the 20th state joined! =)

69. ## Chemisrty

Where can i find drawing of electron dot stuctures for compounds like BR2 and HCN HCN is at the link below. http://dl.clackamas.edu/ch106-01/formulas.htm I couldn't find one for Br2 on line but here is how it will look.   .. .. :Br:Br:

70. ## Projectt Management

Are Project audits conducted at your Company. If so, on what type of Projects and how frequently? What do the audits accomplish? If not, would this methodology improve your company¿s Project management success? How?

71. ## Naming alkanes

Its been a long time since I did this but I believe you pick the longest chain. If there are double and triple bonds involved, pick the longest chain that contains the double bond plus single bonds to go with it (but that is for alkenes isn't it?) When

72. ## math

A right cicular cylindrical can is to be constructed to have a volume of 57.749 cubic inches (one quart). The sides of the can are to be formed by rolling and welding a strip of metal, which may be purchased in rolls with width equal to the desired height

73. ## simple math

(y2-9)/4y times 12/3y+9 does it equal y-3 No, it is not y-3 [(y2-9)/4y] * 12/(3y+9) =(1/4)(y+3)(y-3)(1/y)*(1/3)*[4/(y+3)] =(y-3)/(3y) thank you but that wasn't an answer choice. (y-3)/y was an answer choice though Sorry, I made an algebra error factoring

Does anyone know any good websites for the Valley of the Kings? http://en.wikipedia.org/wiki/Valley_of_the_Kings Is a very good description I do have that one.... any more websites?

75. ## Math

x/4-3=7 x/4-3=7 x/4=7+3 x/4=10 x=10x4 x=40 x/4 = 7+3 x = (7+3)(4)

76. ## English

"Keep the ball rolling" is an example of which? redundant wording,complex words, a cliche, an independent adjective Is it a cliche? It would depend on usage, however, I can think of many instances in which it would be cliche. Keep the ball rolling with

77. ## Grants

What grant would you want if you were doing a community service project and are a non-profit organization?? I am confused.. Thanks, Cass By the way we want to deliver Stuffed Animals to children in the hospital... http://www.grants.gov/ You can find out

78. ## college essay question

George washington university is a good match for me because it is such a well-rounded campus.

79. ## Projectt Management

Are Project audits conducted at your Company. If so, on what type of Projects and how frequently? What do the audits accomplish? If not, would this methodology improve your company¿s Project management success? How? All projects should be reviewed

80. ## Economics

The table below shows annual demand (in 1,000,000 units per year) for Widgets. Use this information to calculate a constant growth forecasting model. Use your growth model to forecast demand for the years 1995 and 2000. Year Demand 1990 1.1 1991 1.5 1992

81. ## English

Can anybody help me to write an essay about"A way to decrease chance of becoming a victim of random violence". Don't walk in parking garages alone late at night. carry around pepper spray. easy as that. Martial arts can be very helpfull in some situations

82. ## science

Is it TRUE that a Cruise Liner, QE2, moves only 12 inches on 1 gallon of diesel fuel? http://www.google.com/search?hl=en&lr=&safe=off&as_qdr=all&q=+%22Cruise+Liner%2C+QE2%22+inches

83. ## math

Is There more chickens in the world or people?

84. ## music

I have to write a detailed description of HARMONY,DISSONANCE + COUNTER MELODY. please help i don't know what to write Here are two dictionaries of musical terms: http://www.essentialsofmusic.com/glossary/c.html

85. ## math inequality

13-3m (< = ) –4m is 13-m greater than or eual to -4m No. < means less than. 13-3m is less than or equal to -4m.

86. ## DISCRETE MATH

HOW MANY POSITIVE INTEGERS LESS THAN 1000 A.are divisible by exactly one of 7 and 11? B. are divisible by neither 7 nor 11? C. have distinct digits? D. have distinct digits and are even?

87. ## Project Management

What steps can be taken to lessen the risk for both parties of a contract when negotiating contract costs, terms, and conditions? -- Define the unknown elements (material, labour, work scope) and separate them as costs.

88. ## Project Management

What steps are used by your Company to monitor Project status to Cost & Schedule? What types of reports are used? --

89. ## HISTORY

How were americas foreign affairs like druring the civil war?

90. ## Civics

What are some pros and cons of todays min. wages? Here are some sites on the pros and cons. There is also a poll included. http://www.youdebate.com/DEBATES/minimum_wage.HTM http://www.ncpa.org/sub/dpd/index.php?page=article&Article_ID=11242 (Broken Link

91. ## English!

What is the effectiveness of having a straightforward diction in a short story? It's probably more realistic, especially if the story is told in a 20th or 21st century setting. If you want to know what the difference would be, read a bit of Shakespeare,

92. ## math

whats all the prime numbers less than 200 See my response to your previous post. Thanks for asking.

93. ## Maths

I have to write a detailed description of HARMONY,DISSONANCE + COUNTER MELODY. please help i don't know what to write Try the following links: http://en.wikipedia.org/wiki/Harmony http://en.wikipedia.org/wiki/Counter-melodies

94. ## math

A right cicular cylindrical can is to be constructed to have a volume of 57.749 cubic inches (one quart). The sides of the can are to be formed by rolling and welding a strip of metal, which may be purchased in rolls with width equal to the desired height

95. ## help me unscramble?

eanhicurr hurricane or rauncher hurricane eanhicurr