Questions Asked on
December 7, 2006

  1. calc help showed work

    If the function f has a continuous derivative on [0,c], the the integral(o to c) of f'(x)dx= a)f(c)-f(0) b)absolute value (f(c)- f(0)) c) f(c) d)f'(x)=c e)f"(c)-f"(0) My work: so the the answer to the integral is f(x) and when find the answer from o t0 c,

    asked by david
  2. ap chemistry

    Discuss briefly the relationship between the dipole moment of a molecule and the polar character of the bonds within it. WIth this as a basis, account for the difference between the dipole moments of CH2F2 and CF4. does anyone have any idea? the greater

    asked by someone
  3. AP chem

    I have a problem set due tomorrow, and two problems in it were not covered in class. The first is this: Molybdenum has an atomic radius of 0.145 nm. The volume of its cubic unit cell is 0.0375 nm^3. What is the geometry of the molybdenum unit cell? I have

    asked by chris
  4. science

    When water mixes with carbon dioxide in the air, what is formed? H2O + CO2 --> H2CO3 carbonic acid I don't think this is correct because there is no aid in co2. It just ends up to be CO2 in liquid form. Basically water with air is carbonated water. that is

    asked by jeff
  5. Gases - van der waals

    It turns out that the van der Waals constant b equals four times the total volume actually occupied by the molecules of a mole of gas. Using this figure, calculate the fraction of volume in a container actually ocupied by Ar atoms (a) at STP, (b) at 100

    asked by Jenn
  6. Forces w/ tension

    Assume that three blocks portrayed below move on a frictionless surface and that a 42 N force acts on the 3.0 kg block. Determine (a) the acecleration given the system, (b) the tension inthe cord connecting the 3.0kg and the 1.0 kg blocks, and (c) the

    asked by Armando
  7. psychology

    Some others are the culture you live in, the subculture (like a minority group within the culture), the neighborhood (urban, suburban, rural), the family (as mentioned by Ken) including one's relative position in the family (first born, only child,

    asked by PsyDAG
  8. trig is killing me...

    the angles of elevation of a tower at two places due west of it are 63 degrees and 56 degrees. given that the foot of the tower and the two points are on ground level and the distance between the two points is 20 meters, find the height of the tower. You

    asked by holly
  9. EFFECTS IN RELIGION

    Jenn's suggestions here are excellent: http://www.jiskha.com/display.cgi?id=1165545917.1165547272 =) WHAT ARE SOME RECENT EFFECTS ORGANIZED RELIGION HAS HAD ON SOCIAL GRUPS IN CULTURAL AND GOVERNMENT TODAYS MOST RECENT EVENTS IN THE NEWS. Here are several

    asked by Writeacher
  10. AP chem

    Second question: In the LiCl structure shown in 9.18 [LiCl's lattice, where the "Cl- ions are in contact with each other, forming a face centered cubic lattice."], the chloride ions form a face-centered cubic unit cell 0.513 nm on an edge. The ionic radius

    asked by chris
  11. science....please help me!! im clueless right now

    I am doing a science project on the "Effect of humidity on the hair of mammals?" that's my topic. Now my teacher wants me to make outline but first I have to make up questions on my topic..... Can you help me make up 2 questions for this topic? -Thanks a

    asked by kerstin =)
  12. Chemistry

    Does CuSO4•0H2O have a molar mass of 177.636? pteromys.melonisland.n et/scripts/molarmass.html ->its a molar mass calculator I think that's right but I'm not completely sure great! thanks What does the 0 mean for mols H2O? If you intended to write CuSO4

    asked by C
  13. chem

    which of th gases is obtained industrially by fractional distillation. is it ammonia or chlorine or hydrogen or nitrogen? Nitrogen is obtained industrially by fractional distillation of liquid air.

    asked by holly
  14. chemistry

    Use the following information to identify element A and compound B, then answer questions a and b. An empty glass container has a mass of 658.572 g. It has a mass of 659.452 g after it has been filled with nitrogen gas at a pressure of 790. torr and a

    asked by Sara
  15. geo

    George and phil were playing with their fish tank again. they had a difficult time keeping their fish tank is 100 cm long, 60 cm wide and 40 cm high. they tilted the tank resting on a 60 cm edge, with the water level reaching the midpoint of the base. when

    asked by Jen
  16. math, algebra

    How is 28 a perfect number? Can someone explain this to me. all i understand that all perfect numbers end in 6 and 8. But how and why is 28 a perfect number. dimes are packaged 50 in a roll. quarters come 40 in a roll.susan b anthony dollars come in rolls

    asked by Jasmine20
  17. calculus

    f(x) = 6x^2 -8x +3 how would I find the most general antiderivative of the function. I also have to check my answer by differentiation. Would I have to find the derivative first? (I got 12x -8) What are the steps to solving a problem like this? No, don't

    asked by Me
  18. chemistry!

    Of the four general types of solids [molecular, ionic, network covalent, metallic], which one[s] are generally soluble in nonpolar solvents? I'm thinking either molecular or ionic. Are either [or both] correct? molecular: like dissolves like is the rule of

    asked by Alex
  19. Relion effects , Jen

    Its asking me to do two separate things one: List first effect thesis and provide examples. THe second one is :List second effect thesis with examples. THe effects I have to think of positive as well as negative how should I word it. So you have to choose

    asked by Jasmine20
  20. English-essay !!!!!!!!!

    First, go through and make sure capital letters are used in all the correct places. Second, make sure you have a space after every period and comma. Third, check to make sure all sentences are complete sentences. Fourth, write a conclusion. Then re-post,

    asked by Writeacher
  21. Chemistry

    According to the Bohr model, what determines the color of light emitted when an electron moves from one energy level to another? The wavelength of the photon emitted depends on the difference of the two levels the electron moved from/to.

    asked by Tomaya
  22. History

    Was Kansas a state or a territory in the 1860s? I think it is a free state, but I would like some backing up. Kansas became a free state in January, 1861. Check this site for more information. http://encarta.msn.com/encyclopedia_761562435_12/Kansas.html

    asked by Katie
  23. Science

    What steps do you think can be taken to reduce the harmful effects of human activities on biogeochemical cycles? Which businesses would these changes impact the most? I think that human activities are having harmful and large-scale effects on the

    asked by Christy
  24. Managerial Economics--PLZ HELP!

    1. An auto-service establishment has estimated its monthly cost function as follows: TC = 6400 + 8 Q Where Q is the number of cars it services each months and TC represents its total cost. The firm is targeting $3,200 net monthly profit with an output

    asked by Heather
  25. pigskin geography

    which team from a state capital will visit the nation's capital for a game No state capital team will play the Washington Redskins in the remainder of this season. Check this site for the 2006 complete schedule. http://www.nfl.com/teams/schedule/WAS

    asked by chris haire
  26. geo

    George and phil were playing with their fish tank again. they had a difficult time keeping their fish tank is 100 cm long, 60 cm wide and 40 cm high. they tilted the tank resting on a 60 cm edge, with the water level reaching the midpoint of the base. when

    asked by jen
  27. GRADE 10 MATH

    ok this your supposed to use the quadratic formula i think... ok a tunnel is 4 m wide and 4 m high. /|\ / | \ /__|__\ 4m and a truck is 2 m wide and has to drive through it (Through the middle). what is the maximum height that the truck can be? if your can

    asked by trish
  28. trig

    a church spire 82 meters high casts a shadow 62 meters long. what is the angle of elevation of the sun at that moment? make right triangle. The base is 62, and the height is 82. So, since tangent of angle = opp/adj, you can calculate the angle. thanks

    asked by holly
  29. English-essay !!!!!!!!!

    I am a spanish speaking person, so this is my best shot. Please understand me. Thanks. Being aware of this fact, I proceed to find out what are my nonverbal listening patterns. To do so, I prepared a 500 word speech to be presented in less than half an

    asked by haydee
  30. calc

    What is dy/dx of y=12/12X-y^3 ???? Any idea anyone??? y=12/12X-y^3 I assume you mean... y=12/(12X-y^3) 12Xy-y^4=12 12x dy/dx + 12y -4y^3 dy/dx=0 dy/dx (12x -4y^3)=-12y solve for dy/dx

    asked by nick
  31. Science..plz help : )

    Is dog hair and human the same? And how? thanks a lot from Jessica!! Genetically it's not. If you were to look at the gene composition you'd clearly be able to tell the dog's hair from the human's hair. Shes wrong go on google and look up your question and

    asked by Jessica<3
  32. Effects of religon

    What are some effects that organized religion has had on society and what are some examples from past and/or present world events that illustrates the examples? religion has caused countless wars in world history. This includes: The Crusades, The 30 years

    asked by Jasmine20
  33. Optimization

    min 2x+y subject to: x+y+z=1 and y^2+z^2=4 Any help would greatly be apprecaited. y^2+z^2=4 ---> put y = 2 cos(theta) and z = 2 sin(theta) x+y+z=1 ----> x = 1-2(cos(theta) + sin(theta)) 2x + y = 2 - 2 cos(theta) - 4 sin(theta) It's not difficult to find

    asked by Dre
  34. Science

    Does agar float in water? Yes, low-density agar is used in most studies

    asked by Moi
  35. Religion

    what does immanent mean? I've read the definition but I don't understand it. I know that its something about believe in god that he is in the universe. Eminent, in the religous sense is used to imply total ownership of everything by god

    asked by Jasmines-sister-Kailin
  36. geometry

    What geometric postulate justifies statement: if AB is congruent to CD and CD is congruent to EF, then AB is congruent to EF. Two geometric objects that are congruent to the same third object are congruent to each other.

    asked by Nicole
  37. hey got a question here

    hey if dy/dx= -2 why is it wrong to say that y is alwats decreasing at a rate of -2? I don't really get it. It is better to say that y is always decreasing with a slope of -2 on a graph of y(x), or at a rate of -2 per change in x. Saying that a rate is a

    asked by David Lee
  38. Not Sure

    What do a cat, checkerboard, basketball, calculator and open book have in common? Post this on the puzzle forum, link below.

    asked by Joe
  39. chemistry

    Molarity is defined as moles/volumesolution What is the molarity of a solution of silver perchlorate, AgClO 4 , if 3.2 moles of silver perchlorate is dissolved in 1.5 liters of water? Is it 2.133 M, 4.756 M, 4.8 M, or 4.810 M ? it is 4.756

    asked by bobpursley
  40. Death of a salesman+ can someone edit my essay? th

    A tragic figure is a characteristic of a dramatic tragedy. Willy is the protagonist of the play. All his life he wanted to have the American dream. He was so concerned about making it big; he did not even realize his whole life was crumbling right

    asked by Willy
  41. Algebra

    Club R has 11 members and Club T has 16 members. If a toatal of 20 people belong to the two clubs, how many people belong to both clubs?

    asked by Bryan
  42. calc

    What are the intercepting points of y^2=-4x and x^2=y I set both equations equal to 0, but only get x=0 and there is another intercepting point. please help! You can solve for one of the equation and substitute it into the other equation. In this case you

    asked by nick
  43. can someone edit my essay? thanks!

    A tragic figure is a characteristic of a dramatic tragedy. Willy is the protagonist of the play. All his life he wanted to have the American dream. He was so concerned about making it big; he did not even realize his whole life was crumbling right

    asked by Willy
  44. newspapers!

    What are the advantages of being able to read newspapers from different countries? Just like getting another person's viewpoint in a personal conversation, you get other views of events from different countries via their newspapers. It might make you aware

    asked by george!
  45. Matrix

    How do you solve for this matrix. X*X^t=0? What matrix times its tranpose is zero? If we use the usual notation: A_{i,j} for the element at the i-th row and j-th column then, if we put: A = X X^(T) ----> A_{i,j} = X_{i,k}[X^(T)]_{k,j} = X_{i,k}X_{j,k} here

    asked by Dre
  46. Pre Calculus

    Formula: a = b = c

    asked by Clarice
  47. The Merchant of Venice

    Shy-lock Hi everyone, I'm reading Shakespeare's "The Merchant of Venice" and I am wondering how to pronounce Shylock's name. Is it pronounced like "Shy-lock" or like "Shlock?" Has anyone seen the play performed live and can confirm how to say the name?

    asked by Ken
  48. HELP ME

    Find two numbers whose difference is 42adn product s -405 Find two numbers whose difference is 42 and product is -405 Set up 2 equations and 2 unknowns. x - y = 42 xy = -405 Then rearrange the second so y = -405/x, and substitute this value of y into the

    asked by MIchaela
  49. calculus help again

    if f'(x)=cos x and g'(x)=1 for all x, and if f(0)=g(0)=0, then the limit x--->0 fo function f(x)/g(x)= okay, so f(x)=sinx g(x)=x and the f(0)=g(0)=0 is also satisfied and equals o. so the limit x-->o of sinx/x= is the answer nonexistent according to the

    asked by david
  50. grammar

    Address them? I don't know what that means. Do you mean you need to identify them? Go through the sentence one word at a time and identify each word. In that way, you'll isolate the adjectives and adverbs. Then you'll be able to complete your assignment.

    asked by Writeacher
  51. Deforestation and Wildlife

    What are relationships between deforestation and wildlife extinction? Thank you for using the Jiskha Homework Help Forum. With deforestation the animals lose their habitat. Here is an interesting site: animals.about.com/b/a/2003_08_18.htm Here is a good

    asked by Tony
  52. books

    facts and figures about books? Sheromeya, we need to know specifically what you need to know. Facts and figures about books is too general. What kind of books? What kind of facts? Please repost and we will be happy to help. what is this book about

    asked by sheromeya
  53. algebra

    What are the intercepting points of y^2=-4x and x^2=y I set both equations equal to 0, but only get x=0 and there is another intercepting point. please help! Graphically, y=x^2 is positive for all values of x, whether positive or negative. The second

    asked by mary
  54. Grammar

    How Do I Work With Common And Proper Nouns? Common nouns name persons, places, things and ideas. Examples: man, friend, librarian, aunt, giraffe, ant, school, city, table, computer, beauty, religion, sadness. Proper nouns name specific persons, places,

    asked by Ashley
  55. Resume

    A link to a how to page please. Since this is not my area of expertise, I searched Google under the key words "resume write" to get these possible sources: http://jobstar.org/tools/resume/index.php http://www.how-to-write-a-resume.org/resume_writing.htm

    asked by Ken
  56. science

    what should i compare when i am comparing solid, liquids and gases you should compare: shape, volume, and arrangement. You can also compare physical properties

    asked by kasia
  57. plz explain or translate this question!!!

    How were things resolved? what does this sentence mean? how do you write your answer for this Q? The sentence means there were two or more differing opinions, measurements or explanations about something. You are supposed to find out which is correct, or

    asked by ashlee
  58. Math!! helppppp

    How do u double 24? Thanks a lot!!

    asked by Kitty
  59. can someone proff read my essay? thanks!

    A tragic figure is a characteristic of a dramatic tragedy. Willy is the protagonist of the play. All his life he wanted to have the American dream. He was so concerned about making it big; he did not even realize his whole life was crumbling right

    asked by Willy!
  60. can someone proff read my essay? thanks!

    A tragic figure is a characteristic of a dramatic tragedy. Willy is the protagonist of the play. All his life he wanted to have the American dream. He was so concerned about making it big; he did not even realize his whole life was crumbling right

    asked by Willy!
  61. Pre Calculus

    Formula: a = b = c

    asked by Clarice
  62. can someone edit my essay?

    A tragic figure is a characteristic of a dramatic tragedy. Willy is the protagonist of the play. All his life he wanted to have the American dream. He was so concerned about making it big; he did not even realize his whole life was crumbling right

    asked by Willy!
  63. Effects on religion, Jen

    Which ones are the positive effects that organized religion has had on social groups in the past as well as in the more recently. Which ones are the negative effects that organized religion has had on social groups in the past as well as in the more

    asked by Jasmine20
  64. Science

    Which is a better bacteria killer? Bleach or hand sanitizer which contains 62% ethyl alcohol. i'm not sure but i think is the hand sanitizer. hand sanitizer ok thanks. What kind of germs? What temperature? In any case, I think bleach would be hard to beat

    asked by Moi
  65. algebra

    Can someone assist help me with the following? Simplify the expression: 6-(8+3i) The answer is -2-3i, but I do not understand why. Think of the -sign outside of the parantheses as a -1. So, you need the distributive law and multiply -1 x 8 = -8. Then -1 x

    asked by Sir Galahad
  66. Math - Calculus

    Im trying to understand related rates here and im getting stuck at this word problem. It says if V is the volume of a sphere with radius r, and the volume of the sphere decreases as the time passes. express dV/dt in terms of dr/dt. Describe the

    asked by Cosmo
  67. physics

    what are the units of wavelengh They can be any length units, but it is common to use meters for radio waves, centimeters for microwaves, micrometers for infrared, and nanometers or Angstroms (10^-8 cm) for visible and ultraviolet light. Regardless of what

    asked by alejandra
  68. list of rf values

    can you give a comprehensive list of rf values. rf: Radio Frequency? I am uncertain what the context of rf is. rf probably is related to chromatography. They are the retention factors for thin layer chromatography; i.e., TLC. I looked on www.google.com an

    asked by damola
  69. grammar

    Already answered yesterday: http://www.jiskha.com/display.cgi?id=1165423247 =) Can you help me with pronoun case? Pedro Martinez`signed a baseball for Chad that he had used in a game.

    asked by Writeacher
  70. ENGLISH political research paper topic help!

    Hey, I'm trying to come up with a topic for my yearly research paper (I'm a homeschooled senior in high school). A friend of my family was just elected the Majority Whip in the PA House of Representatives, and my mom suggested that I find a topic where I

    asked by Caitlin
  71. physics

    1.The mass of a string is , and it is stretched so that the tension in it is 180 N. A transverse wave traveling on this string has a frequency of 260 Hz and a wavelength of 0.60 m. What is the length of the string? 2.A rocket engine emits of sound energy

    asked by Jena
  72. bio (plz check answer)

    Question: Calculate the frequency of the AA, Aa, and aa genotypes after one generation if the initial population consists of 0.2 AA, 0.6 Aa, and 0.2 aa. What I have done is: P = (0.2)+(0.5)(0.6)= 0.50 q = 1-p = 1 - 0.50 = 0.50 Can someone check my answer

    asked by Josh
  73. Health (again)

    Hi! It's me again! Here is the question: How many teenagers smoke in ontario? (as recent year as you can find) 20.7 teenagers Thank you Sam!! :)

    asked by Caley
  74. health

    how much dose smoking cost Ontario canada taxoayers because of health care? plz answer asap! Your exact answer is at the following site page:

    asked by sam
  75. General Biology

    Please review-some I'm not sure are correct and there are a few I don't know the answers. Any help would be appreciated. Thank you. 1.

    asked by ML
  76. english

    i am writing an essay on stained glass windows. they want me to write a Working Draft Outline of Research Report and a Working Draft Bibliography/Research Rept what do i do for these?? thanks in advance http://www.ipl.org/div/teen/aplus/ At this site,

    asked by cassidy
  77. Bio

    Are there any incorrect below, also help with the questions which I could not answer would be very appreciated. Thanks. 43.

    asked by ML
  78. biology

    Question: Calculate the frequency of the AA, Aa, and aa genotypes after one generation if the initial population consists of 0.2 AA, 0.6 Aa, and 0.2 aa. What I have done is: P = (0.2)+(0.5)(0.6)= 0.50 q = 1-p = 1 - 0.50 = 0.50 Can someone check my answer

    asked by Jesse
  79. Grammar

    Please correct every error in the sentences below. 1. African leaders are speaking out against a tradition in which widows have sex with a relative of their dead husbands because it helps to spread HIV. 2. The Ferrari was driven by a sexy woman with

    asked by Tiffany
  80. math-I just want this check because it will be gra

    Are these the correct answers and lables? 9. A hand lens increased the thickness of a line 10 to the 3rd power times.The line was 0.5 mm thick. How thick did the line appear? my ans.- 500 mm thick 10. A truck holds 10 to the 4th power times more pounds

    asked by chris
  81. math-I just want this check because it will be gra

    Are these the correct answers and lables? 9. A hand lens increased the thickness of a line 10 to the 3rd power times.The line was 0.5 mm thick. How thick did the line appear? my ans.- 500 mm thick 10. A truck holds 10 to the 4th power times more pounds

    asked by chris
  82. English

    Could you give me some feedback on the first page of my story for an English narrative assessment? Tell me what I could improve (descriptions, phrases, ect...) and what sounds wrong, if that's OK. Here it is: It all started the day Jules McGregor moved to

    asked by Sarah
  83. pigments

    What are the three accessory pigments in plants? http://en.wikipedia.org/wiki/Phycobilin http://en.wikipedia.org/wiki/Carotene http://en.wikipedia.org/wiki/Xanthophyll http://en.wikipedia.org/wiki/Phycoerythrobilin

    asked by kieran
  84. Science

    Why are the lanthanides and actinides moved out of numerical order and placed at the bottom of the periodic table? They aren't always, but for most periodic tables, the width would be very long, and it wouldn't fit very well on an eight by eleven piece of

    asked by Matt
  85. english

    Dr. Frankenstein flung a power switch, blue streamers of static electricity crackled about the table the creature gave a grunt and opened smoldering eyes. are you asking for it to be corrected? Dr. Frankenstein flung on the power switch and instantly, blue

    asked by patricia
  86. math

    What is the difference between any two consecutive odd numbers? 2

    asked by Bryan
  87. Science... plz help me...

    I am dong a science project on the "Effect of humidity on the hair of mammals?" Now my teacher wants me to make outline but first I have to make up questions on my topic..... Can you help me make up 2 questions? -Thanks a lot from Kerstin =) This sounds

    asked by kerstin =)
  88. Chem

    What is the formula for an oxide of fluorine? F2O2 also written as O2F2

    asked by Christina
  89. Legal Considerations

    What do you think about the justice and appropriatesness of particular laws, all board member,staff and volunteers are to obey all laws in the performance of their work on behalf of Community Services? What does it tell you about the relationship between

    asked by Nickey
  90. homework

    What do you think about the justice and appropriatesness of particular laws, all board member,staff and volunteers are to obey all laws in the performance of their work on behalf of Community Services? What does it tell you about the relationship between

    asked by Nickey
  91. Figured out question

    Can't find my other post and I know the person who helped me wanted to know if it was right or no. And it wasn't. So Ff=UsFN Ff=49N -Ff=ma a=-6.86 on the penguin Fnet=ma Fa-Ff=ma Fa-49=6.12*6.86 Fa=90.98N There it is. Thank you.

    asked by Armando
  92. Writing/ New York Times

    i just read in the Editorial Section of the New York Times about Uinted States Losing the Good War.. You know where i can find more information on this? Every where i look its the same exact article. Where is it written not the same way but talking about

    asked by Devon
  93. ELA

    who read call Of The Wild forget about it i already got the passae ( this goes to everyone )

    asked by Jose
  94. math

    206/41 u are dividing in this one rite 5.5

    asked by caylin
  95. anthropology

    The oldest evidence for the beginings of a culture comes from? What do you mean by "culture"? By some definitions, the first cultures developed in Africa. However, the first civilization originated in Sumer in Mesopotamia (now Iraq) about 3200 B.C. This

    asked by monique
  96. Algebra 2

    Club R has 11 members and club T has 16 members. If a total of 20 people belong to the two clubs, how many people belong to both clubs? (16-x)+(11-x)+x=20 Answer is 7

    asked by Bryan
  97. fractions and percents

    write a percent for a $7.50 donation from a $100 check. 7.5 percent??? 7.5% = 75 OVER 100 yepp, 7.5% but if you want some explanation, here's a picture. =] i11.tinypic.c0m/44ipo50 make sure to change the "0" in the com to an "o" dumbb dumb

    asked by jasmin
  98. word processing

    How do you merge documents (from a table into a word document for example)? I think you have to have the data in a database or spreadsheet to be able to make it merge into a word processing document. I'm not sure, though. I've always done this with Works,

    asked by Anonymous
  99. Writing/ New York Times

    What do i search? It gives me no results when i search Losing the Good War on cnn. You are searching for information that is so specific that you have to be prepared for the possibility that none of it may be online. Or some may be, and some may not. In

    asked by Bryan
  100. World/News

    What is opium cultivation? I could be wrong, but I think it's the preparation of the soil for growing opium.

    asked by Colby