1. Physics

    I got 15.6 but it was wrong? Ace raised a 14.0-N physics book from a table 72 cm above the floor to a shelf, 2.20 m above the floor. What was the change in potential energy?
  2. sociology

    What kind of measures do sociologists use to calculate prejudice other giving a person an implicit association test? Essentially prejudice depends on how you divide people into "us" and "them" categories. There are various types of scales used (e.g., Likert-type scales and ...
  3. English

    Broad Subject-Phonebook Character Limited Topic for Thesis Statement- Oliver Tolivr Main Idea- Wealthy Buisness Man Three Step Format #2 Appearance-Sloppily dressed #3 Surroundings-State of the art mansion #4 Actions-Penny pinching ways Thesis Statement: The sloppily dressed, ...
  4. Chemistry

    My teacher showed us these examples in class, he says he need to be able to know when something is soluble in something else but i have no idea how to know. anyone have any rules on how to know? This is the examples he gave us: is CsI soluble in H2O? yes is CH3OH soluble in ...
  5. Physics

    Hi, I have a question for physics An object with mass m = 20 kg is released from a height h = 60 m above the ground. After 2 seconds, the object's quantity of energy Thanks for your help mvh Oddbjørn
  6. As physics

    (As physics working out please) Which physical quantity has the same base units as energy? SHOW ALL WORKING OUT! A:Moment B:Momentum C:force D:pressure
  7. physics

    A physics book of unknown mass is dropped 5.00 m. What speed does the book have just before it hits the ground? Assume that air resistance is negligible
  8. Physics

    would it be possible to view your body from head-to-toe, while standing in front of a plane mirror that is only as tall as you? this is in the chapter mirror on my physics books
  9. physics 2B

    physics 2B---- A toy balloon is filled with helium gas ( He}) at 1atm} and 30 degrees Celcius. If the volume of the balloon is 0.025 m^3, how many atoms does it contain?
  10. physics

    A physics professor lifts her 8.2-kg briefcase at constant speed with an upward force. Find the magnitude of her force. answer in newtons.
  11. Physics

    When catching a ball, your cricket coach advises you to move your hands backwards with the ball. Explain the physics behind this 'follow through' technique.
  12. physics

    A person throws a physics book off of a cliff at an initial speed of 3 m/s at an angle of 20 degrees. The book is in the air for a total of 2.5 seconds.
  13. phySICS

    PHYSICS when a positive charge moves under the influence of an electric field's electrostatice force, what happens to the electrical potential energy of that charge?
  14. Physics

    I need to make a mousetrap car for my physics class. I have to make it so that it can stop, but I won't know at what distance until the testing day. How should I do it?
  15. physics

    A Physics book , mass unknown , is dropped from a table . its velocity just before hitting the ground is 9.39 m/s . what is the height of the table ?
  16. physics

    A physics professor lifts her 9.0-kg briefcase at constant speed with an upward force. Find the magnitude of her force.
  17. physics

    A physics professor lifts her 9.0-kg briefcase at constant speed with an upward force. Find the magnitude of her force.
  18. Physics

    i was woundering if you could point in the right direction i'm looking for very easy physics topics that makes use of the law of sines or the law of cosines Thanks
  19. physics

    A physics professor lifts her 9.0-kg briefcase at constant speed with an upward force. Find the magnitude of her force.
  20. physics

    in archery should the arrow be aimed directly at the target? how should your angle of aim depend on the distance of the target? (AP physics)
  21. Science Urgent Please help

    (I have no idea how to even approach this question. Can anyone please help me?) Some people have proposed that the earth could solve its population problem by shipping people off to space colonies, each containing about 10,000 people. Assuming that we could build such large-...
  22. science

    So I have to do this project on simple machines. The invention we need to make should have at least 2 simple machines on it. We also have to draw it on posterboard and write a paragraph about it. One more thing is that it must make a person's life easier and we have to present...
  23. science please help

    So I have to do this project on simple machines. The invention we need to make should have at least 2 simple machines on it. We also have to draw it on posterboard and write a paragraph about it. One more thing is that it must make a person's life easier and we have to present...
  24. College Essay

    Is it better now? Anyone can give me some suggestions other than grammar problem. For example, ideas, etc. Thank you so much! I was glad that I had an opportunity to be an interpreter in a Howard County event. I feel lucky that I can speak two different languages ---- Chinese ...
  25. English II

    Okay, I was just wanting to know what would be some key things to research. For a final project I either need to make a powerpoint, write an essay, or make a poster. The topic goes along with the book we have read, "The face on the Milk Carton." My teacher gave some idea ...
  26. EMERGENCY!!!

    HELLO! I DON'T KNOW WHAT'S GOING ON WITH ME LEFT HAND. MY PINKY IS SWOLLEN AND I HAVE NO IDEA WHY MY PINKY IS SWOLLEN. I DON'T REMEMBER INJURING MY LEFT HAND OR MY PINKY IN ANY WAY TODAY AND NONE THIS PAST WEEEK. WHEN I BEND MY PINKY I FEEL NUMNESS AND TIGHTNESS. THE TOP PART ...
  27. US History

    Read the following paraphrase from George Washington's Farewell Address and answer the following question. People have the right to make and alter their governments. But the constitution is sacred law until changed by the whole people together. The very idea of the power and ...
  28. modern world

    I don't understand what the difference is in how does the view of history influenced by Darwinism differ from the view of history influenced by the Enlightenment idea of progress??? Darwin didn't intend his theories of evolution to apply to humans and their history. He was ...
  29. Physics

    ohn and Jack are planning to do a physics lab related to vectors. Starting at the door of their physics classroom, they walk 2.0 meters, south. They make a right hand turn and walk 16.0 meters, west. They turn right again and walk 24.0 meters, north. They then turn left and ...
  30. Social Studies

    Which of the following best summarizes Hoover’s and Roosevelt’s policies? A. Hoover was most concerned about stabilizing the banks, while Roosevelt chose to provide jobs. B. Hoover believed in providing public works and welfare, while Roosevelt wanted the people to find ...
  31. physics

    when a 100 m runner reached the finish line , the runner stopped suddenly and fell on the ground . explain the situation using the appropriate physics concep
  32. math

    This is the question and what I have so far is under it. "Given the length of a femur, f, in centimetres, a person’s height can be determined using the equation H=2.4f+61.4, where H is the height of the person in centimetres. Suppose this equation has a margin of error of ±...
  33. Trigonometry

    At the ocean, it is known that the tide follows a trigonometric path. At high tide, the water comes in to a point 1 meter from where I placed a flag. At low tide, the water comes in to a point 11 meters from the same flag. The time it takes from to get from high tide to low ...
  34. science- physics helppppp ! i badly need one T___T

    how is physics related to food technology and everything related to foods ?
  35. physics

    Come up with 10 things (like bowling) that could use physics? What does this mean?
  36. physics

    is it possible to a have a percentage difference of zero in physics
  37. physics

    in physics what does the letter G stand for
  38. physics

    i need three different project topic in physics
  39. physics

    physics behind fibre optics
  40. As Physics

    What does oath will be parabolic mean in physics?
  41. As physics

    Could a physics expert please help out with my other questions please?
  42. Physics

    I have some physics problems that I would like to get checked please?
  43. physics

    i need three project topics in physics. Help please
  44. History

    Read the text below and answer the following question: "Camp­meeting with thy presence crown, And show't O Lord, they blessings down; Fill every head with holy zeal, And all thy righteousness reveal, O'er all our hosts do thou preside, And all our various movements guide...
  45. History

    Read the text below and answer the following question: "Camp­meeting with thy presence crown, And show't O Lord, they blessings down; Fill every head with holy zeal, And all thy righteousness reveal, O'er all our hosts do thou preside, And all our various movements guide...
  46. Math

    I need to make one graph showing changes in population for deer and wolves. I'm stuck because the deer scale would go by 500's. but the wolves are very small and would go by 2's! I have no idea how i can make my y-axis of my graph! any ideas? Two options really. 1. Use two y ...
  47. college

    Q. A soccer ball is kicked from the ground. When it reaches a height of 5.74 m, the velocity is v=5.86i+7.50j m/s. a) Determine the maximum height that the ball reaches. b) Determine the total horizontal distance travelled by the ball. c) What is the speed of the soccer ball ...
  48. artist

    1. The artwork pictured here best represents which message? a) Ideas and creativity can be shown with many different tools. b) It is important to use one type of tool because you understand how to use it. c) People can be limited by their ideas. d) Diversity is distracting. 2...
  49. Social Studies

    The excerpt below is Article 6 of the "Declaration of the Rights of Man," the document that founded the French Republic on August 26, 1789. Use this excerpt below to answer the following question: Law is the expression of the general will. Every citizen has a right to ...
  50. art

    Ketchup is a non-traditional material, but the artist used it in his protest piece against fast food restaurants because of it's ability to a. resist decay b. convey a message c. deteriorate quickly d. attract flies I think that it's b but I'm not sure What did the broken ...
  51. Physics

    Physics Help... Applying Newtons Laws Grade 11? On the surface of the earth a geological hammer has a mass of 1500g. Determine its mass and weight on Mars where g=3.6 m/s^2.
  52. Physics

    A mass (m) rest on a frictionless slope within our physics lab room. The angle of the ramp with respect to the floor is 35 degrees. What is the magnitude of the mass's acceleration?
  53. physics

    Place a coin on top of a sheet of paper on a desk or table. Pull the paper horizontally with a quick snap. What concept of physics does this illustrate?
  54. Physics

    A mass (m) rest on a frictionless slope within our physics lab room. The angle of the ramp with respect to the floor is 35 degrees. What is the magnitude of the mass's acceleration?
  55. Plato's Allegory of Cave

    Has anyone read the Plato's Allegory of Cave before? I got an assignment which is write a journal after reading this, but I really did not understand what it is talking about. Can anyone tell me something about it? Thanks. This site may help you. http://en.wikipedia.org/wiki/...
  56. Physics: Non uniform motion

    I have not done much physics before: I don't get how to do questions that deal with what happened in a particular SECOND So questions like: - A stone which is dropped from rest into a mine shaft falls a distance of 24.5 m DURING THE LAST SECOND. Find depth of the shaft or - ...
  57. English

    1. Application means to: A. memorize the concepts, ideas, or vocabulary learned. B. judge the merit or value of the information. C. use the knowledge learned to understand actual situations. D. breaking the idea down to component parts. is it C 2. Evaluation in Bloom's ...
  58. business vommunication

    What are seven things you must do in both oral and written messages? You need to have a good idea of what the message is that you are trying to send, have a knowledge of your audience, and communicate in ways that are clear and understandable for that audience. The other ...
  59. English thinking

    I am looking for why the media does not talk about bird flue , any more? Is there is some reasons why they do not talk about it anymore, do u have any idea? Yes. It does not sell anymore. Media tend to go with sensationalism, and not cover subjects that are well worn. Some of ...
  60. algebra1

    What steps do I take in solving this problem? It is about graphing inequalities. 10x+4¡Ý9x+17 put the equation in the form of y ? x + constant. ? means greater than or less than. That is the first step. You are getting no more help until you start showing some thinking or ...
  61. English

    Has anyone read the book The Undomestic Goddess. Have to pick a subject and write about it. I think I picked a bad book. What could I write (an idea) that could set me off in the write track. I started writing how she was treated different when she was a lawyer as compared to ...
  62. Math

    Out of a group of 600 students taking computer,mathematics or physics,there is no student taking both computer and mathematics.Every student takes computer or mathematics.150 take physics and mathematics and 250 take only one of the subjects.Find 1) the number of students ...
  63. Math-Precalculus-Parametric Equations - Ellipses

    The graph of the equation (x-h)^2/(a^2) + (y-k)^2/b^2 = 1 is an ellipse with center (h,k), horizontal axis length 2a, and vertical axis length 2b. Find parametric equations whose graph is an ellipse with center (h,k), horizontal axis length 2a, and vertical axis length 2b, and...
  64. 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 profit function Take a ...
  65. Precaculus

    I seriously have no idea where to start in these questions tumor is a collection of cancerous cells. Suppose each cancerous cell has a radius of 5×10−3 cm, and that the doubling time for a population of cancerous cells is 20 hours. If the tumor has an initial volume of 0.1 ...
  66. Physics Plans Project (11th Grade)

    I'm doing a physics project where I have to find plans for a device and then build it and type a report demonstrating the physics behind it. However, the materials can't cost more than $75 total. I'm having trouble finding any plans, especially ones that are interesting, ...
  67. History

    When the 23rd Amendment was passed, it gave voting rights to residents of Washington, DC. Why were they excluded from all of the previous amendments that gave voting rights? A. Only politicians were allowed to live in Washington, DC. Previously, people in government were not ...
  68. help i have no idea!!!!!! math

    The Men's Warehouse has suites on sale for buy one full priced, get the second 40% discounted and the third 70% discounted. If a full priced suit costs $380, what should someone expect to pay for three suites? Amy has been saving for her high school graduation trip for a long ...
  69. Physics

    I am new at physics and having a very hard time. Could you please help. Thank you. Show that the water pressure at the bottom of the 50-m-high water tower in Figure 5.3 is 490,000 N/m2, or is approximately 500 kPa.
  70. physics

    physics:the notes at 110Hz has two strings at this pitch. if 1 slips from its normal tension of 600N to 540N what beat frequency would be heard when the two strings are stuck simultaneously?
  71. physics 30

    A magnet dropped through a vertical solenoid will fall at a rate that is slower than gravity, and will induce an electric current within the solenoid. which physics principle explain these phenomena ?
  72. PHYSICS

    Give at least one example of an application of each branch: motion properties of materials sound light electricity magnetism properties of atoms nuclear physics Dont understand this.
  73. Physics

    I am totally new to physics. We are working on summation of moments and I just am not grasping this. I know the formular is M=dF, but his does not help me. I get confused about the middle of settig of euation. I am never sure which distance I should be using. Is there a step ...
  74. physics

    physics:the notes at 110Hz has two strings at this pitch. if 1 slips from its normal tension of 600N to 540N what beat frequency would be heard when the two strings are stuck simultaneously?
  75. Deciding on a H.S. Science Course

    I'm currently a sophomore, and I need to plan a science course for next year. Do you know if colleges require physics? Would a college prefer to see physics on my transcript in oppose to Environmental Sciences or Astronomy? Thanks!!
  76. Physics

    This is a pretty simple physics problem, but I do not know how to go about it. How do I: Show that the time required for a projectile to reach its highest point is equal to the time for it to return to its original height?
  77. Statistics

    Hi folks, I'm having trouble with figuring out the intensity matrix for a particular birth/death process. Customers arrive in pairs in a Poisson stream with intensity lambda. There is waiting room for one customer. Service time is exponentially distributed with parameter mu. ...
  78. How to get quick responses to your math questions

    Math is a wide subject, ranging from K to 11, college and university. Then there is algebra, trigonometry, geometry, arithmetic, calculus, number theory, ... etc. Not all teachers answer all math questions (many do). If you would give a little more detail on which branch of ...
  79. English 1

    my assignment "suppose the person to whom Montresor is telling his sstory has turned him over to the police. Montresors lawyer might argue that his client is insane. the prosecution will argue that montresor knew exactly what he was doing, even planned in advance. write a ...
  80. Algebra

    Gabe lives fifteen miles from school and the bus stops seven times at three minutes each between his house and school. The bus arrives at his house at 7:30. Gabe's friend Aaron lives 8 miles from school and the bus stops four times at 2 minutes each between his house and ...
  81. Algebra

    Write an equation for the translation so the graph has the given vertex. 1. y=-|x| vertex (-5,0) 2. y=2|x| vertex (-4,3) 3. y=-|x| vertex (p,q) I really have no idea how to even begin these, but I do know the answer to # 2 is y=2|x|+11 and #3 is y=-|x-p|+q Thanks in advance. ...
  82. physics

    Numerical of chapter 5 Fsc part 1 physics "plz answer me fast am so confused" 5.6: A 1000 kg car traveling with a speed of 144 km /h round a curve of radius 100 m. Find the necessary centripetal force?
  83. Physics

    You want to push a 66-kg box up a 30° ramp. The coefficient of kinetic friction between the ramp and the box is 0.35. With what magnitude force parallel to the ramp should you push on the box so that it moves up the ramp at a constant speed? N Physics - bobpursley, Thursday, ...
  84. Math

    Two families met at a par for a picnic at the end of the day, they part ways. Family A leaves 15 minutes after Family B and travels east at an average of 42 mph; while family B travels west at an average of 50mph. Both families have an approximately 160 miles to travel. 1.)...
  85. Chemistry

    Imagine that you have a pure sample of an unknown compound that you are told is either 2-naphthol OR benzoic acid. In the lab, you also have access to samples of pure 2- naphthol and pure benzoic acid. However, both of these pure substances melt at 123 °C: the same ...
  86. English

    Write the vocabulary word that goes with each idea. Glared - legendary - muttered - gaped -flinched- fluke - snickering - stunned. 1/.............stared at angrily. Answer: glared 2/..........something so great that stories are told about it. Answer:legendary 3/..........said ...
  87. History

    5.)Which of the following is the best explanation of the XYZ affair that took place during John Adam's presidency? A.)Adams tried to purchase three naval ships (X,Y, & Z) from France demanded much more money than the ships were worth & adams rejected the offer. B.)Adams ...
  88. History

    5.)Which of the following is the best explanation of the XYZ affair that took place during John Adam's presidency? A.)Adams tried to purchase three naval ships (X,Y, & Z) from France demanded much more money than the ships were worth & adams rejected the offer. B.)Adams ...
  89. History

    5.)Which of the following is the best explanation of the XYZ affair that took place during John Adam's presidency? A.)Adams tried to purchase three naval ships (X,Y, & Z) from France demanded much more money than the ships were worth & adams rejected the offer. B.)Adams ...
  90. History

    5.)Which of the following is the best explanation of the XYZ affair that took place during John Adam's presidency? A.)Adams tried to purchase three naval ships (X,Y, & Z) from France demanded much more money than the ships were worth & adams rejected the offer. B.)Adams ...
  91. statistics

    Nownes (2000) surveyed representatives of interest groups who were registered as lobbyists of three U.S. state legislatures. One of the issues he studied was whether interest groups are in competition with each other. Table 1?10 shows the results for one such question. (a) ...
  92. english

    my comparison essay introduction paragraph. can someone help me think of what to wrtie before the "an analysis...." i just need a general idea of what to write because im stuck. here the intro: Miley Cyrus song “The Climb” is not only one of my favourite songs, but so is ...
  93. PHI 103

    25. <21{8[1(07)95]}> Political science professor: Many people insist that the Internet is revolutionizing the political process. They argue that Internet debates and online political polls and chat rooms give people greater access to political information. And they’re ...
  94. eng 155

    Have a done the adverbs correctly? If you have not sung Karaoke yet, chances are you will have the chance real soon. Karaoke is a form of entertainment that is growing very rapidly in popularity. It started more than twenty years ago in a snack bar in Japan. Here is how it ...
  95. English (poetry)

    Create a symbol and write a short essay on what the symbol means. This should be a piece of short fiction using the symbol as the central focus in the essay or a poem either using the symbol as a focus or describing the symbol’s meaning. Be sure you have: Created a symbol ...
  96. Social Studys

    This excerpt is from a citizen in england in response to the colonial outrage toward the stamp act. what central arguement of the american colonists against the stamp act is not understood by the writer? that trade was heavily restricted due to taxes, which made it difficult ...
  97. finance

    Linda Scales is now employed as the managing editor of a well-known business journal. Although she thoroughly enjoys her job and the people she works with, what she would really like to do is open a bookstore of her own. She would like to open her store in about eight years ...
  98. English

    I wanted to know if I had the right idea. In the poem “To My Dear and Loving Husband" by Anne Bradstreet the poem is emotional because she is expressing the love she has for her husband, and it is also physical because the metaphors she uses helps have an image. If ever two ...
  99. US History

    Hello! I just need an idea for a topic in this assignment, as I am not sure of a topic to choose. The assignment is: The United States faces a number of challenges and issues in the twenty-first century. Some are domestic in nature, while others are related to foreign affairs...
  100. Maths..

    Uh...Yea... Sorry about this, but I"m trying to study and I need someone to walk me through, missed a lot of school. fyi, when there's a / its under the entire string before it until you hit the inequality symbol. Tony Bowled 135 and 145 in his first two games. Write and solve...
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