physics( i have no idea how to go about gettign th

166,364 results, page 43

  1. Math

    if alpha and beta are the zeroes of the polynomial f(x)=x^2-3x-2 , find a quadratic polynomial whose zeroes are 1/2(alpha)+beta and 1/2(beta)+alpha ? Please... i have no idea !!
  2. Language Arts

    (1)The most catastrophic natural disaster in the United States was a category 4 or extreme, hurricane that struck Galveston, Texas, on September 8, 1900.(2) A 15-foot storm surge killed more than 8,000 people on the low-lying island.(3) In a effort to prevent a similar ...
  3. Math

    Information from a survey on 175 persons about the goods, services and prices of a supermarket is as follows: 110 persons complained about the prices 67 persons complained about the services 55 persons complained about the goods 20 persons complained about goods and prices ...
  4. English

    What do you suppose McPhee means by “the influence of Ernest Hemingway evidently extended to the Pentagon”? This is the context this question is referring to: And inevitably we have come to Ernest Hemingway and the tip of the iceberg—or, how to fashion critical theory ...
  5. Science

    1.Which of the following is a good study habit? A.maintaining a positive attitude ** B.waiting until the last minute to start on an assignment C.listening to the television while studying D.studying when you are tired 2. Your friend John complains about his poor grades. You go...
  6. English - Oedipus Rex

    I have to find evidence to support which character I think it the most guilty for what happens to Oedipus. I was just wondering if anyone knows whether or not Sophocles is trying to point the finger at someone other than Oedipus, who I think is the most guilty. My reasons are ...
  7. Novel [repost]

    I've been brainstorming about the idea that Guru gave about the novel and here's what I have of the summary so far. I can't think of an ending for it though like a conclusion or even how she finds out that it's the crow. help please! Credits to GuruBlue from Jiskha Summary: ...
  8. Physics

    A person consumes 2500 kcal/day while expanding 3500 kcal/day. In a months' time, about how much weight would this person lose if the loss were essentially all from body fat? (Body fat has an energy content of about 4100 kcal per pound).
  9. physics

    The thermal energy stored in 1 kg of gasoline is about 10,000 kcal (42,000,000 J). A small car needs a forward force of about 500 N to move slowly at a constant speed on a leveled road (no change in ME). How far should the car go if all the energy stored in 1 kg gasoline is ...
  10. 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/...
  11. Math

    Write the ratio as a fraction in lowest terms of the number of residents at Adams to the number of students at Dodge. Adams=115 residents Dodge=295 residents Evans=140 residents Fisher=245 residents Brown=135 residents Carver=200 residents I have no idea on how to answer this ...
  12. Grammar and Composition

    how about this: Introduction—reader’s attention and states thesis statement. Paragraph 1 The first paragraph should get the reader’s attention and sate the thesis statement. ...
  13. Health

    A patient's attorney asks her physician for medical records about the patient's care accident and promises to provide a written authorization from the patient later. The physician gives the attorney the patient's entire file, including her records about treatment for HIV. ...
  14. English Research Project Information - Sadako

    For my english research essay, I will need two print sources. I am doing the topic on Sadako (the girl from "A thousand Paper Cranes") The librarians at my school told me that they didn't have any books on her. Do you know of a reference/nonfiction book about Sadako, or an ...
  15. English

    I have a few last doubts. Thank yo very much for your corrections. 1)The narrator can tell a story using a first- or a third-person. An internal narrator tells of his own personality. (or tells about?) 2) The story deals with (and not tells about) a family living in New York. ...
  16. English

    1. You may have a jellyfish in the top middle (of the picture). 2. You may have a jellyfish on the top middle (of the picture).. 3. You may have a jellyfish at the top middle (of the picture). (Hello. Questions about how to use preposition? Are all the prepositions correct? ...
  17. Math

    x +/- 3 is that mroe simplified then writing it out x + 3, x - 3 I thought it would be becaue we normally say simple is when all of the operations that could be done is done in which case the second choice is more simple? I'm just woundering because i'm doing a summer ...
  18. Chemistry - help

    This is a test for chlorides in NaOH sample. 1.0g of NaOH was dissolved in 5ml of distilled water, acidified with 4ml of dilute nitric acid and diluted to 15ml with distilled water. This mixture was poured into a test tube containing 1ml of AgNO3 solution. However, I obtained ...
  19. Calculus

    Oil flows into a tank according to the rate F(t)=(t^2+1)/(1+t), and at the same time empties out at the rate E(t)=(ln(t+7))/(t+2), with both F(t) and E(t) measured in gallons per minute. How much oil, to the nearest gallon, is in the tank at time t = 12 minutes. You must show ...
  20. Ratios!!!!

    8. Abby, Ingrid, and John are sharing a bag of candy in the extended ratio 2:3:4. If there are sixty three candies in the bag, then how many will Ingrid get? A. 7 B. 14*** C. 21 D. 28 9. Which of the following are equivalent to the ratio 3ab:27ab? Select all that apply. A. 1:9...
  21. Science

    On the main sequence, what type will have life spans of about ten billion years? I took Earth Science last year so although I do not have them in front of me, I believe the are in the Earth Science Reference Tables (ESRT).
  22. science

    we are making a survival guide as a project. and my country is sri lanka. the whole idea is to make survival guide based on a person being stranded in sri lanka. that person would have no equipment other than clothes and the guide. we are given 4 dilemmas to write about to ...
  23. english essay

    can someone proofread my essay please. Martin Luther king Jr, Mrs Gonsalvez, Mr Bryce what do they have in common? Well their leaders. Leaders are people who are kind and caring, But how did they become leaders?. Well they started off as a good student then good citizen then ...
  24. calculus

    Find an equation of the tangent line to the curve at y = cosx - sinx (pi, -1) I found y'= -sinx - cosx and used the equation of the tangent y = mx +b I input the values and get -1 - [(-sinx - cosx) * pi] = b the answer says it is y = x - 1 - pi I have no idea how the answer ...
  25. Chemistry

    From your experience, predict which of the following reactions are spontaneous. a) Zn(s) + 2H+(aq)--> Zn+2(aq) + H2 (g) b) CaCO3(s) + 2H2O(l) --> Ca(OH)2(s) + H2CO3(aq) c) CH4(g) + O2(g) --> CO2(g) + 2H2O(g) d) Ag+(aq) + Cl-(aq) --> AgCl (s) Our book spends very ...
  26. algebra

    Plug in (-1) for x. It will look like this: f(-1) = 4 *(-1) - 3 four times negative 1 equals negative 4, so... f(-1) = -4 - 3. negative four minus three is easiest to figure out with a number line...it equals negative seven. So: f(-1) = -7. And you're done! here is another one...
  27. college math

    A jet leaves a runway whose bearing is N26E from the control tower. After flying 4 miles, the jet turns 99 degrees and flies on a bearing of s55e for 6 miles. At that time what is the bearing from the jet from the control tower. I have no idea how to solve this please help!
  28. Social Studies

    The idea of "natural rights" means that a) Government has a right to rule because the citizens consent. b) Government authority is more important than citizens' rights. c) People are born with rights that cannot be taken away. **** d) People have the right to choose who will ...
  29. please help calculus

    find the volume of the solid formed by revolving the region bounded by y=e^x, y=0, x=o and x=1 about the y axis by using the shell method, i got v=2*pi int(o to 1) (x)(e^x) dx and my teacher said the answer is e/2 but i keep getting a different answer Are you sure it is to be ...
  30. 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 I wrote in my ...
  31. 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 the dipole moment of a ...
  32. More Physics

    A light plank rests on two scales that read Fg1 = 410 N and Fg2 = 310 N. The scales are separated by a distance of 2.00 m. How far from the woman's feet is her center of gravity (the woman is laying on a plank with scales on both ends supporting the woman and plank)? You have ...
  33. Quick Question #2 (URGENT)

    How would show/ask 'What is your phone number?' in symbols and pictures. Would having a picture of a telephone and the number sign beside it, and write equal sign then question mark demsonstrate this question? Example: phone pic (#)=? If my idea doesn't demonstrate the ...
  34. Chemistry

    What are the charges of the ions in an ionic compound containing iron(III) and fluoride ions? a)iron(III)- i got 3+ b) flouride- im not sure on this one c)Write the formula for the compound. (Type your answer using the format CO2 for CO2.) - Fe3F2... i rly have no idea on this...
  35. physics

    A woman pulls a 23 kg suitcase using a rope attached to the suitcase at an angle of 38 degrees to the horizontal. The coefficient of static friction of the suitcase with the floor is 0.3 and the coefficient of kinetic friction is 0.2. a) Draw a situation and a force diagram of...
  36. calculus

    Evaluate the integral ∫∫∫2xzdV bounded by Q. Where Q is the region enclosed by the planes x + y + z = 4, y = 3x, x = 0, and z = 0. Answer=16/15 Is this answer correct? cause i've tried doing this problem a bunch of ways and i never even get close to 16/15. i ...
  37. math HELP

    Okay the questions is I have 100 dollers to spend and I most buy 100 shoes. Flip flops are .10 each High heels are 2.00 each boots are 5.00 You have to buy at least one of each. I have been working hard on question and I feel like I am about to pull my hair out. you need to by...
  38. Physics

    An elevator operates on a very slow hydraulic jack. Oil is pumped into a cylinder that contains the piston. The piston lifts the elevator as the internal cylinder pressure (P2) rises in comparison to the outside pressure (P1=101,325 Pa or about 14.7 psi). If the piston can ...
  39. Physics

    An elevator operates on a very slow hydraulic jack. Oil is pumped into a cylinder that contains the piston. The piston lifts the elevator as the internal cylinder pressure (P2) rises in comparison to the outside pressure (P1=101,325 Pa or about 14.7 psi). If the piston can ...
  40. Writing Skills Writing Assignment

    I am trying to complete a 750 to 1000 word essay but I completely have no clue what to write about and my writing skills is a bit lacking. It needs to be about a personal experience. I have more info if needed.This is the final paper result. Your final paper should be at least...
  41. Language Arts (3 questions)

    Question #1: Which characteristics make "The Rider" a lyric poem? a. It uses musical language and expresses feelings b. It tells a story about a historical event c. It rhymes and has a regular rhythm d. It uses repetition and describes a natural event According to what I have ...
  42. Geography

    I'm doing a Map of the Month, and i'm almost done. I just have to locate and lable 3 rivers. (Helmand River, Amu Darya River and Indus River). I'm having some difficulty trying to find a clear map that labes the at least one of the lakes, so if anyone had any idea where to ...
  43. chemistry

    We did a LAB where we used a spectrophotometer to measure the absornency of a solution. It was a bluish color, so the question is.... What could be done to modify this experiment if the original solution was colorless? HINT: you can NOT add a coloring agent such as food ...
  44. Chemistry

    If acetic acid is the only acid that vinegar contains [Ka = 1.8*10-5] , calculate the concentration of acetic acid in the vinegar. pH of vinegar is 3.20 _______________ First I got the antilog of the pH given, which turned out to be 6.309E-4. Then I did [(6.309E-4)^(2)]/(1.8E-...
  45. Stock question

    I have to write about the positive effects of an investor buying stocks of a company but I would like to know about the negative affects so I could add them to my essay but I cant really understand how it could be bad for an investor to buy a stock of a company,.. could you ...
  46. ENGLISH HW CHECK

    Choose the correct answer for the ALL CAP word 1. My father always COMPLAINS that my sister's boyfriend is lazy. Answer a. complains b. complain c. complained d. complaining 2. Uncle Frisbee, who BE as bald as a grapefruit, buys every new hair-growing tonic he HAVE heard about...
  47. reading

    Why isnt an ant suture not a good idea?
  48. science

    whats the big idea of partcles?
  49. science

    what is the big idea of energy transfer
  50. English

    How do you know what the topic and main idea of a paragraph is?
  51. Calculus 1

    Calculate f'(-1) f(x) = x^7 * h(x) h(-1) = 5 h'(-1) = 8 Answer is 27, but I got no idea how to get there.
  52. english

    What is the main idea of the shepards daughter
  53. biology

    What is the main idea of metabolism. please help
  54. history

    who came up with the idea of the school bus?
  55. Pre Calculus

    e^-x sqrt(3e^2x -5/4) = e^x No idea how to approach this.
  56. Geography

    Who is assosciated with the idea of the cultural landscape
  57. Language arts

    What is the central idea of the selection
  58. ELA

    What is the implied main idea of the passage>
  59. Language

    The tide rises, the tide falls, The twilight darkens, the curlew calls; Along the sea-sands damp and brown The traveller hastens toward the town, And the tide rises, the tide falls. Darkness settles on roofs and walls, But the sea, the sea in the darkness calls; The little ...
  60. physics

    What airspeed would a plane have to travel to have a groundspeed of 320 km/h [S] if there is a 50.0 km/h wind coming from the northwest?
  61. physics

    A typical woman gives off heat at the rate of about 8000 calories per hour. How long would a woman have to stay in a bath of 60L (60,000g)of 26*C water in order to raise the water temperature to 30*C. Presume that all the heat given off by the woman is transferred to the water...
  62. physics

    A typical woman gives off heat at the rate of about 8000 calories per hour. How long would a woman have to stay in a bath of 60L (60,000g)of 26*C water in order to raise the water temperature to 30*C. Presume that all the heat given off by the woman is transferred to the water...
  63. physics

    A typical woman gives off heat at the rate of about 8000 calories per hour. How long would a woman have to stay in a bath of 60L (60,000g)of 26*C water in order to raise the water temperature to 30*C. Presume that all the heat given off by the woman is transferred to the water...
  64. art

    hi do you have any ideas for the following project: i need to pick any environment and document a message or issue about it in that exact environment, e.g. take a photo of my work in that place. i'm thinking about focusing on the issues of energy wastage but don't know which ...
  65. physics

    i have given an assignment by school to prapare a working model of physics. Please give me some tips.
  66. ela

    in chapter 9 site specific examples ex: ms.maudie is thoughtful of other "only thing i worried about...was all the danger and commotion it caused... this whole neighborhood could have gone up." i did all of them except these please help atticus tie racism to a lack of ...
  67. AP environmental Science

    Can someone please explain what this means to me in english? i've read it a million times and i have no idea what it means. Thanks for any help!!! "Scientific evidence shows a direct relationship between sea level and the global mean atomospheric temperature during the past ...
  68. History

    Which answer summarizes the main topic of the Constitutional Convention? A.)They argued about federalism and how the federal and state governments would share power. B.)They argued about the Articles of Confederation and how to change it to serve the government better. C.)They...
  69. Chemistry

    Calculate the amount (g) of each of the following salts that need to be added to a 200 mL volumetric flask to produce a 2 M solution of S. CaSO(subscript 4) [NH(subscript 4)subscript 2]SO(subscript 4) NOTE: the subscript 2 is outside the (NHsubscript 4) Fe(subscript 2)[(...
  70. English, Social studies

    1. We had a sleepover at Susan's house. 2. We had a sleepover party at Susan's house. (Which expression is correct? Are both grammatical?) Q2: Do only girls have a sleepover? How about boys? Do they have sleepover parties? Do all teenagers have sleepover party in the USA?
  71. algebra II

    Thank you for your prompt response. I have my homework I have to turn in in about 2 hours, but i am struggling to solve this question. Is there any way you can just give me the answer while I find a website that can show me step by step how to solve these kind of problems? I ...
  72. english

    I have a data story to write on employment and in my city unemployment for blacks is double the amount it is for whites.. I'm suppose to speak with employment agencies and speak with them about this issue. Do you guys have any suggestions of any statistical questions I could ...
  73. critical thinking

    WHAT BACKGROUND INFORMATION CAN YOU HAVE ABOUT CLAIMS
  74. french

    i have some questions to ask about how to spell it in english
  75. AP Statistics

    Do the samples appear to be from the same population? Why or why not? Support your answer with numerical facts and convincing reasons and explanations Chemical distribution stats: Five # summary: (2.29816, 2.29869, 2.299152, 2.30074) Mean: 2.299706 Standard deviation: 0.001313...
  76. Physics

    Your dog has been diagnosed with a terminal illness for which there is no cure. The Veterinarian expects that it will live for 1 year before it succumbs to the condition. You have the idea that if you could keep the dog alive a little longer, a cure might be found. You decide ...
  77. Chemisty

    Aluminum hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in coagulating the sol? NaCl CaCl2 Fe2(SO4)3 K3PO4 The idea behind coagulating sols is to use those salts that have the highest + and - charges and the most ions...
  78. Chemistry

    Aluminum hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in coagulating the sol? NaCl CaCl2 Fe2(SO4)3 K3PO4 The idea behind coagulating sols is to use those salts that have the highest + and - charges and the most ions...
  79. Education

    Does the Individuals Disabilities Education Act (IDEA) and the Education for the Handicapped Act Ammendments of 1986, focus on services provided to families, children, communities, or to schools? I am thinking they provide services to families. Don't they? Education of the ...
  80. World History Honors

    I have to create 10 questions about the Guillotine? My first one is Why did Robespierre prefer suicide than being sentenced to death by the guillotine? However I also need the answer and I believe that it may have had to be because he was too embarrassed to be hanged in front ...
  81. math

    The head of an industrial machine moves in a straight line horizontally backwards and forwards from a central position. The movement can be modelled using the sine wave d = 80 sin ( pie t), where d is the horizontal distance (in cm) from the central starting position, and t is...
  82. Budgets(Jobs)

    Which two things does a budget compare? A.Saving and interest B.Income and expenses C.Income and investments D.Expenses and expenditures B? Which of the following is a true statement about budgets? A.They encourage people to spend as much money as possible B.Setting up a ...
  83. English

    Dear Antell I have read Liane Beam Wansbrough’s article on the topic of cosmetic plastic surgery, and I am writing to express my viewpoint and feelings as I feel so strongly about this subject. Whilst I can appreciate why you would choose to help young teenagers who have a ...
  84. Calculus

    A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of the rectangle. What is the area of the largest possible Norman window with a perimeter of 31 feet? A = x(31/2-1/4 (2+pi) x)+.5pi(x/2)^2 This is what I...
  85. Math 7

    A photo studio offers different sized prints of the same subject. The original print measures 8 inches by 10 inches. A printer enlarges the orginal the orginal by a scale factor of 1.5, and then enlarges the second image by a scale factor of 3. What are the dimensions of the ...
  86. PHYSICS

    Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #4: What is the increase in thermal energy to a 2000 kg bus and its ...
  87. Environmental Science

    I am writing a report on greenhouse gases. Most of it is very depressing about how greenhouse gas emissions have increased over the pats decade. I want to highlight, however, greenhouse gases, if any, which have decreased. Can you think of any?
  88. Chemistry

    I was asked this question for homework but I don't even know where to begin. It has 3 parts to answer. 1) add all lone pairs and make multiple bonds with the framework shown to satisfy the octets and make the best Lewis structure. 2) For the C-N bond(s) in each molecule ...
  89. health care

    I am asked to write an essay on at least one item not covered in my text about improving the patient intake process; the text seems to cover all relevant points. My question is: can I approach this assignment by stressing the need for electronic medical record? Does this sound...
  90. tough physics question

    A 500 turn solenoid with a length of 20 cm and a radius of 1.5 cm carries a current of 2.0 A. A second coil of four turns is wrapped tightly about this solenoid so that it can be considered to have the same radius as the solenoid. Find the following when the current in the ...
  91. us history

    1. Using what you have learned about President George Washington, which of these government characteristics would George Washington support? Absolute power of the president Alliances with other nations Strong central government *** Powerful political parties 2. Read the ...
  92. 9th grade HEALTH

    MY QUESTION IS ABOUT HEALTH... I HAVE A MIDTERM DUE MONDAY 01/26/2009.. AND I REALLY DON'T KNOW HOW TO START IT I HAVE TO USE I,ME,MY STATEMENT ONLY... HOW CAN I START MY MIDTERM??..PLEASE HELP!!??
  93. English

    1. He still felt fun about the show to watch the dynamic movements of the dancers. 2. He still felt funny about the show to watch the dynamic movements of the dancers. 3. He still felt fun to watch the dynamic movements of the dancers about the show. (Are they all grammatical...
  94. English

    1. I was upset with what he said. 2. I was upset about what he said. 3. I was angry with what he said. 4. I was angry about what he said. 5. I was angry at what he said. ------------- Are they all grammatical? Which prepositions do we have to use? Is 'with' is commonly used?
  95. Physics

    A hydroxide ion (OH−) in a glass of water has an average speed of about 600 m/s. Determine the magnitude of the electrical force between the hydroxide ion (charge −e) and a positive ion (charge +e) that is 1.0 × 10−8 m away (about the separation of 30 atoms...
  96. History

    1. Why is Lincoln giving a speech at Gettysburg? A.To declare the Confederacy an outlaw nation B.To declare that to goal of the Union is to abolish slavery C.To dedicate a national cemetery for Union and Confederate dead D.To try Confederate soldiers for treason A? 2.When ...
  97. physics

    an apple weighs about 1N. what is its mass in kilograms ? what is its weight in pounds?
  98. physics

    A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m
  99. physics

    A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m
  100. physics

    what can you say about the forces on a brick lying still on the floor?
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