Questions Asked on
November 30, 2006

  1. Physics, please help today!

    0.0100kg particles have been glued to a rod of Length L=6.00cm and negligible mass and can rotate around a perpendicular axis through point O at one end. How much work is required to change the rotational rate (a) from 0-20.0 rad/s, (b) from 20.0 rad/s to

    asked by Dawn
  2. Physics, Please help today

    0.0100kg particles have been glued to a rod of Length L=6.00cm and negligible mass and can rotate around a perpendicular axis through point O at one end. How much work is required to change the rotational rate (a) from 0-20.0 rad/s, (b) from 20.0 rad/s to

    asked by Dawn
  3. egg weight

    Anyone know the weight of an egg. I need it to do some calculations for my science project. IT depends on the size of the egg. Eggs vary from 35 grams (small egg) to 75 grams (AA large).

    asked by Mark
  4. Physucs

    A clerk pushes a filing cabinet of mass 22.0 kg accross the floor by exerting a horizontal force of magnitude 98 N. The magnitude of the force of kinetic friction acting on the cabinet is 87 N. The cabinet starts from rest. Use the law of conservation of

    asked by Raj
  5. Modern World History

    Can some one describe the historical importance of the scientific revolution. I have an essay paper due an need help Here are a number of sites that will have the information you need.

    asked by Bryan
  6. math

    why did the indian wear feathers in his hair. ..brain teaser help How is this related to "math"? I think that it is partially a symbol of status. However, since this is not my area of expertise, I searched Google under the key words "Indian feathers" to

    asked by adam
  7. calculus

    consider the function f(x)= x^2/4 -6 Rn is the Riemann sum where the sample points are chosen to be the right-hand endpoints of each sub-interval. Calculate Rn for f(x)= x^2/4 -6 on the interval [0,4] and write your answer as a function of n without any

    asked by amanda
  8. biff?

    How does Biff’s habitual stealing reflect his upbringing? Check out the analysis of each character at =)

    asked by WillY
  9. math

    This is the question that is on my worksheet If Stephanie is scheduledto begin practiceat 12:30p.m., what is the latest time in which she could start getting ready to leave? How long does it take Stephanie to get ready? How long does it take Stephanie to

    asked by Brooke
  10. Logic (quick yes or no question)

    Why?? what proof is there that states the sun is the center of the solar system?? how do we know this?? The solar system is the group of heavenly bodies that orbits the Sun, which is also known as Sol. Sol orbits the galactic center, roughly 30,000 light

    asked by Bryan
  11. essay

    During my four years in high school, I have taken a lots of classes to prepare for college. As I took ELD classes ( English Language Development ) during my freshman and sophomore year, I realized that I could not meet the college's requirement. So in my

    asked by JJ
  12. hi calculus asap

    the graph of a piecewise linear function f, for -1

    asked by Anonymous
  13. science, biology

    what are features of food chain? The food chain tells what creatures eat other creatures. I searched Google under the key words "food chain" to get these possible sources:

    asked by ada
  14. English

    Where can I go to check about my essay when your are finished? I have not seen any essay from you for help with proofreading. If you post the entire essay in a message, someone will respond directly to that message. =) I need your help to write that

    asked by louise

    In what ways could African Americans empower themselves in the antebellum United States? I know that they used autobiographies...but I am not even sure if I understand the question!!! Since this is not my area of expertise, I searched Google under the key

    asked by Anonymous
  16. Math ASAP-Rational

    Could you please help me with the following question: Square root of x^3=8 would I square both of the sides to undo it or would I cube each side? the answer is 2root2 2/2 Ms.Thomson's class consists of 12 girls and 13 boys. They all put their names in a

    asked by Music_Girl
  17. variations

    find a solution for this problem: (2,4), 1/2 = y I do not understand your notation. Are you looking for a function y(x) that goes through the point (x=2, y=4), and has slope 1/2?

    asked by Jane
  18. English

    I need help with this question. All of the following elements are enemies of coherence,except which one? 1. misplaced modifiers 2. unclear antecedents 3. placing sentences in the most understandable order 4. lack of transistional words and phrases Which

    asked by Thalia
  19. Maths

    Demand function P=50-Q Average Cost 5Q + 40 +10/Q Calculate the firm's total cost function Find the marginal cost function and evaluate it at Q=2 and Q=3 What is the total revenue function Find the firms's revenue maximising output level Find the firm's

    asked by Jen
  20. English

    I did an assay, could u check it out for, I really don't know how to do it. to see if its correct. Thanks Haydee, if you will post your essay on the board, a teacher will be more than happy to proof read it for you and make suggestions. Thanks for asking

    asked by Haydee
  21. math please

    what exactly is a prime factor would x-5 x+5 and x2+25 all be prime factors of x4-625? Yes, I believe those would be the prime factors. x^4 - 625 can be factored into (x^2 -25)(x^2 + 25) and once again into (x-5)(x+5)(x^2 + 25) That is what you have done.

    asked by anonymous
  22. physics

    How does changong the tension of a string change the pitch? It shortens the ocilation

    asked by kay
  23. history

    I need 4 causes of Taft's problems in office. I have tariffs and coservation but I need 2 more. The Antitrust suits that Taft supported brought about the antagonism of big business reformers. On an international level, he had problems when US support went

    asked by Anonymous
  24. Us History

    How did human history in North America during the period described in the prologue differ from the events of Asia, Eurasia, and Europe? Be specific. How were these differences important to the international state of affairs in 1450? You'll need to be more

    asked by Kendra
  25. META!!!

    what are advantages and disadvantages of using meta search services? 1. Go through the different articles in the section entitled HOW TO SEARCH THE INTERNET. 2. Then try out some of the search engines in the

    asked by jen
  26. Physics

    A spring is compressed .02m by a 0.5kg rock. The spring and rock are on a frictionless horizontal table. a) If the spring has a spring constant of 5N/m what acceleration will the rock have when released? b) How fast will the rock be moving when it reached

    asked by Josiah
  27. Physics Again

    How do you calculate the coefficient of friction, if it is not given to you? What would the formula be? It is a measured value. Force friction= mu*normal force. That is the usual method of solving for mu.

    asked by Josiah
  28. English-Essay

    What methods can a writer use to get the reader to respond favorabily to a request? Appeal to their emotions. Make them believe in your cause. :) How do I begin it?

    asked by Mary
  29. algebra


    asked by jenny
  30. world geography

    explain why divisions appeared among the different reformers within the Prostetant movement.

    asked by danielle
  31. Social Studies

    What are the nine types of landforms? please help! This site is excellent.

    asked by Roberta
  32. english

    How do I begin it? Thank you for using the Jiskha Homework Help Forum. If you mean "how do you begin an essay" try the "introduction." What are you going to write about? The thesis statement does not have to be in the first paragraph but it makes it easy

    asked by mary
  33. mangerial eco

    you are the manager at the cadillac division of GM. If the marketing department has estimated that the annual demand for the escalde is Q=100,000-1.25P what price should you charge in order to maximize revenues from sales? Total revenue is P*Q. So, TR =

    asked by allison
  34. english

    In a sentence with a direct object... the action goes from the Subject -> verb-> noun. I bit my brother. I->brother. In a sentence with a direct object AND an indirect object. The action goes from the Subject -> verb (past the Indirect Object) ->Noun. I

    asked by GuruBlue
  35. English!

    What is the relative effectiveness of Internet search engines versus searching for information in a library or searching for a product in a grocery store? IT depends on what you are looking for. I can hardly find anything except milk in a grocery store. My

    asked by jen
  36. History

    I have to write an essay on the legacy of the Enligntenment. Can any one provided me with websites for resources I need help Here is a good place to start: Notice the characteristics of the Age of

    asked by Jamal
  37. Death of a salesman!

    When Linda is left alone to herself by Willy’s grave, she cannot, at first, cry. However, when she says, “We’re free and clear” (139), she starts to sob deeply. Why? I think for any reason a wife would cry. She loved Willy. It was ironic that in

    asked by WillY
  38. French

    is this correct>? Quand j’ai choisis ma niveau d’éducation, ma liste des carriers n’a changé pas. Je veux aller au l’université et pour la majorité de mes emplois tu dois aller au l’université pour le faire. Thank you for using the Jiskha

    asked by Francais
  39. metrics

    why is it so hard It isn't hard. It may be different and different things we deal with take some adjustments. Tell us what your problems are and perhaps we can tell you how we dealt with those problems the first time we encountered them.

    asked by john
  40. death of a salesman!

    How does Biff’s habitual stealing reflect his upbringing?

    asked by WillY
  41. Fact Familys

    What are the 2 fact families for 6,3. 6 3 + 3 and 4 + 2 Now what do you think the families are for 3? ??

    asked by James
  42. social studies

    what gift from the 1970 christmas book gave new meaning to bathroom oasis

    asked by irina
  43. Riddle Help

    This riddle is driving me crazy Mon C Ter Mon C Ter Mon C Ter The answer is a phrase, and i don't think it has anything to do with monsters or Sea monsters

    asked by Tim
  44. math factors

    I need all math factors for 2,006 2006 = 2*17*59 :)

    asked by Janice
  45. biology

    How are complex carbs broken apart? Hint: Look up the words "hydrolysis" and "glycosidic linkage."

    asked by courtney

    HOW DO YOU FIND THE END POINT OF A SEGMENT WHEN YOU ONLY HAVE THE MIDPOINT AND ONE OF THE ENDPOINTS??? Why don't you post the problem and tell us what you don't understand about it?

    asked by NONYA BUSINESS
  47. HELP History HELP

    How many states were slave states in the 1860s??? Weren't there 15. How many free states were there in the 1860s??? Were there 18 or 19. 19 states prohibited slavery and 15 permitted it

    asked by Katie
  48. HELP History HELP

    Were the 15 slave states of the 1860s:Texas, Missouri, Arkansas, Mississippi, Louisiana, Alabama, Georgia, Florida, South and North Carolina, Tennessee, Kentucky, Virginia, Maryland, and Deleware??? Because I thought that Missouri, Kentucky, Maryland, and

    asked by Katie
  49. Life Cycles

    What happens when a butterfly under goes metamorphosis? This would also apply to moths, by the way. The basic order is egg, larva (worm), pupa, chrysalis, cocoon, and then finally adult.

    asked by Melthea
  50. Chemistry Plz hurrry

    What are charateristic of a ionic bond and a chemical bond? An ionic bond is a type of chemical bond that involves gain or loss of valence (outer shell) electrons in order to attain stability. That is not what I am looking for but thanks anyway An ionic

    asked by Smooches
  51. More Life cycles

    What are some animals that have similar life cycle as human? Any mammal: dogs, cats, horses

    asked by Melthea
  52. science

    how do u find out the purity of sand

    asked by alyssa
  53. english

    I woul like to review my essay please? Post it. Can you please help me write that essay" A way to decrease your chance of becoming a victim of random ciolence". Hmmm. You have an assignment to write an essay, a teacher offers to review your essay, and you

    asked by louise
  54. Chemistry

    What are charateristic of a ionic bond and a chemical bond? Answered below for characteristics of ionic bonds. I don't understand characteristics of chemical bond since an ionic bond is a chemical bond. Perhaps you can rephrase your question. For my

    asked by Pretty in Pink
  55. algebra

    How do I do substitution equations out of the equations in the system, pick the one that has the least amount of funky numbers. then make that equation equal to either x or y(or any other variable dependin on what kind of systems youre doing, usually just

    asked by Adraen
  56. Physics Please Help Today Part 2

    Here's a pic C:\Documents and Settings\Owner\My Documents\My Pictures\physicspic.jpg 0.0100kg particles have been glued to a rod of Length L=6.00cm and negligible mass and can rotate around a perpendicular axis through point O at one end. How much work is

    asked by Dawn
  57. english

    please send me some example about that essay, "Away to decrease your chance of becoming a victime of random violence" There are no "examples" of essays here. You must write your own; then post it and someone here will be able to give you feedback. Here are

    asked by louise
  58. English- The Lord of The Flies

    CHapter 2: Why do you think the beastir comes to dominant the meeting? What does it symbolize? Please help me out on this one. I cant figure it out and its so frusterating! Thank you so much! I have never read this book. If no one else has, please check it

    asked by Help!
  59. english

    A way to decrease your chance of becoming a victim of random violence. Violence is typically not random. Victims are picked out because of certain characteristics — especially vulnerability and availability. If you know of particular places that tend to

    asked by Anonymous
  60. Chemistry

    What is the charatteristic of covalent bonding meaining what happens and then what is the result from what happened (like does it form a molecule, compund, etc. . . Same thing for ionic bodnging The ionic part is discussed below. Look for a chemistry post

    asked by direct in Effect
  61. essay

    As a immigrant, I know that I have less chance to get into the University of California than other people. But I never give up the thought of getting into UC. As I mentioned before, I have taken as many college prep classes I could to meet the UC's

    asked by JJ
  62. math

    what is 10,000lb=_____T 5 tons, since there are 2000 lb per ton. As a follow through to the other post I did for you (cups to pints), note tons=10,000 lbs x factor tons = 10,000 lbs x (1 ton/2,000 lb)= 5 tons. Note again, how the lbs (the unit we want to

    asked by brooke
  63. world history

    what were some of the weaknesses and limitations of the ancient chinese civilizations during the mongol and ming periods?

    asked by pamela
  64. math

    6c=___pt Can someone show me steps please? You look up the conversion factor. There are two ways it can look; i.e., 2 cups = 1 pint OR 1 pint = 2 cups. Here is the way to do ALL conversions. ??pts = what you are given x conversion factor. ??pts = 6 cups x

    asked by brooke
  65. math

    3 3/4pt=____c show steps and work please Try the method DrWLS or I showed you FIRST. Repost if you still don't get it but tell us what you don't understand about the procedure.

    asked by brooke
  66. math

    2Tons=____oz Try the method DrWLS or I showed you. Then repost if you don't understand but tell us what you are having trouble with.

    asked by brooke
  67. math

    still having trouble with 2T=____oz How many ounces are in a pound and how many pounds are in a ton? Show us HOW you used the procedure you have been shown. And tell us what you don't understand. We have done two for you but you need to learn how to do

    asked by Brooke
  68. Logic (quick yes or no question)

    quick yes or no question Is the sun the center of the universe or the earth the center? Neither. The sun is the center of the solar system. Each individual point can be considered the center of the observable universe. The wrote answer of course is no,

    asked by Bryan
  69. math

    If Stephanieis scheduled to begin practice at 12:30 p.m. what is the latest time at which she could start getting ready to leave? This makes no sense.

    asked by Brooke
  70. Chem

    What is the ratio of atoms of CL over atoms of Zn? and what is the empirical formula of zinc chloride? In ZnCl2, there are two ions of chloride to each zinc ion.

    asked by Steve
  71. Math

    ç 2x^3 + 3x^2 + x + 1 dx --------------------- -2x + 1 [2x^3 + 3x^2 + x + 1]/(-2x + 1) = ax^2 + bx + c + d/(-2x + 1) ----> 2x^3 + 3x^2 + x + 1 = (ax^2 + bx + c)* (-2x + 1) + d Find a, b , c and d by equating the coeffients of equal powers of x on both

    asked by Ash
  72. math

    what is

    asked by bret
  73. Chemistry

    How do you find out the number of moles in a certain amount of grams of a element or compound. After that, how do you find the number of atoms/molecules in that element or compound. Thanks grams/molar mass = # mols There are 6.02 x 10^23 molecules in a mol

    asked by Slice
  74. math

    If Stephanie is scheduledto begin practiceat 12:30p.m., what is the latest time in which she could start getting ready to leave? The previous answer you obtained was, "This makes no sense." It still holds. Read this question to yourself and see if it makes

    asked by Brooke
  75. Introduction to the Criminal Justice System

    There is a large round up of gang members, this is a federal case but is being supported by about 50 local officers and state troopers. I need help please, coordinating he informaiton for briefing on the jprocess at the federal court building. the briefing

    asked by Jo
  76. Integration

    ç e^ãx / ãx dx Your symbols are not legible. Please retype using normal keyboard characters Integration of e^radicalx / radicalx dx

    asked by Ash
  77. algebra

    the temperature at Kent is -7 degrees and increasing at 2.5 degrees per hour. The temperatire at row is 19 degrees decreasing at 4 degrees per hour. When will they be the same? and what temperatore? let t = hours running time. -7+2.5t = temperature at Kent

    asked by carl
  78. worldhistory

    What were two important trade goods in west Africa during The Middle Kingdom Slaves were traded with European countries and with the Americas. Salt was an important trade item inside Africa.

    asked by paris
  79. business administrator

    Identify two professional organizations related to the human services field.?

    asked by Nickey
  80. calculus confused

    let f and g be differentiable functinos witht the following properties: g(x)>o for all x f(0)=1 if h(x)=f(x)g(x) and h'(x)=f(x)g'(x), then f(x) multiple choice: a) f'(x) b)g(x) c) e^x d)0 e)1 it can't be a or b. it also can't be c right? because if f(x) is

    asked by Anonymous
  81. Algebra 1

    how do you find slope intercept form? The general equation is y=mx+b

    asked by anthony
  82. science

    what are tow types of environment present in every habitat? I'm not sure what you are asking. The geological the the climate aspects are always present. Is this what you want? I hope this helps. If not, repost your question in more specific terms. Thanks

    asked by jessica
  83. science

    what is mutaualism? how has it affected the existence of clown fish and sea anemone? I think mutualism is where two species live in an ecosystem where they interact with each other and one gains something from the other like a bug cleaning a animal and in

    asked by denise
  84. Precalculus

    i need to show that the given equation is an identity. using composite argument properties. (cosAcosB-sinAsinb)^2 + (sinAcosB+cosAsinB)^2 = 1 Composite argument properties: cos(A + B) = cosAcosB - sinAsinB sin(A + B) = sinAcosB + cosAsinB Substituting:

    asked by Andrew