Questions Asked on
November 25, 2009

  1. physics

    A man can throw a ball a maximum horizontal distance of 97.8 m. The acceleration of gravity is 9.8 m/s2 . How far can he throw the same ball verti- cally upward with the same initial speed? Answer in units of m.

    asked by Letisha
  2. physics

    A solid aluminum ingot weighs 89 N in air. What is its volume? The ingot is suspended from a rope and totally immersed in water. What is the tension in the rope?

    asked by Anonymous
  3. Chemistry

    Octane (C8H18) undergoes combustion according to the following thermochemical equation: 2 C8H18(l) + 25 O2(g) ---> 16 CO2(g) + 18 H2O(l) DHo = -11,200 kJ Given : DHfo [CO2(g)] = -393.5 kJ/mol and DHfo[H2O(l)] = -285.8 kJ/mol. Calculate the enthalpy of

    asked by Robert
  4. Phyiscs

    A man claims he can safely hold on to a 9.7-kg child in a head-on collision with a relative speed of 112-mi/h lasting for 0.12 s as long as he has his seat belt on. (a) Find the magnitude of the average force needed to hold onto the child. HELP

    asked by Rick
  5. Fixed Critical analysis essay

    In "Phenomenal Woman" by Maya Angelou, the speaker is advising all women to be self-confident no matter what others say, or think. The theme that Angelou portray's is that it's better to be yourself, than trying to act like a different person. In this poem

    asked by Crystal
  6. Proofread my Critical Analyis essay

    My critical Analysis essay is over the poem "Phenomenal Woman," by Maya Angelou. Before you begin reading it I've typed directions. When you finish it could you please give me a letter grade. I'm a 10th grader. Thanks so much have a blessed Thanksgiving.

    asked by Crystal
  7. Biology

    In the small intestine, the digestion of food molecules is completed and absorption occurs. Structures from the circulatory system are associated with the small intestine. Explain how these structures assist the small intestine in its function.

    asked by Sam
  8. Chemistry

    What is the bond energy of SO3 in kj/mol . What is the bond length

    asked by Polly
  9. Physics

    To suck water up a straw to a maximum height of 187 mm, what minimum gauge pressure must be produced in the lungs? Note that in order to be able to suck up water, the pressure in the lungs must be lower than the pressure outside by the exact amount of

    asked by Lily
  10. Physics need help

    A guitar string is struck and found have a frequency of 2048Hz. If both tension and length are doubled, what is the new frequency of the string?

    asked by Tam
  11. accounting

    Group Project Doug Maltbee formed a lawn service business as a summer job. To start the business on May 1, he deposited $1,000 in a new bank account in the name of the proprietorship. The $1,000 consisted of a $600 loan from his father and $400 of his own

    asked by hilda
  12. Physics

    Question about doppler effect: How do you solve when it gives you percentage value? (Q 1) How do you calculate for doppler effect when the listener is moving instead of the source of sound? (Q 2) Questions 1. As a racing car zooms by you, its pitch

    asked by Tommy
  13. sample size question

    A federal funding program is available to low-income neighborhoods. To qualify for funding, a neighborhood must have a mean household income of less than $15,000 per year. Neighborhoods with mean annual household income of $15,000 or more do not qualify.

    asked by Desire
  14. Physics

    To suck water up a straw to a maximum height of 68 mm, what minimum gauge pressure must be produced in the lungs? Note that in order to be able to suck up water, the pressure in the lungs must be lower than the pressure outside by the exact amount of

    asked by Sarah
  15. Physics

    A hydraulic lift in the shape of the letter U, two pistons are formed, one with a larger diameter and other with a smaller. If the diameter of the smaller piston is 4.0 cm and the diameter of the larger piston is 40.0 cm, what weight can the larger piston

    asked by Sarah
  16. Physics

    I'm not sure how to calculate this question help me! (Grade 11 Physics) it's sound intensity... Show me how to do it please! (textbook says answer is 3.5 m) At close proximity, rustling leaves have a sound intensity of about 1.2 x 10^-11 W/m squared. At

    asked by Chris
  17. physics

    Calculate the index of refraction of a diamond if the speed of light in a diamond is 1.24x10 to the power of 8 m/s. Please break it down and show all the steps. :) thank you

    asked by nicole
  18. Creative Writing

    You may write a minimum of a 600-word essay or short story (900-words maximum), or a minimum of a 6-stanza poem (10 stanzas maximum) using Description or Narration. Or: You may write a minimum of a 600-word essay or a 6-stanza poem using either Definition

    asked by y912f
  19. Calculus

    Hi there i am having some problems trying to do my calculus homework and i really need help on how to show the step to proof the volume of a sphere which is V= 4/3pirsquare. But I have to use triple integral to proof the volume of a sphere. Please help me

    asked by shylo
  20. English

    What kind of work did you do as a volunteer? 1. I helped the handicapped take baths and have meals. 1-1. I helped an handicapped person take baths and have meals. 2. I went to a hospital and took care of patients there by taking them outside in wheelchairs

    asked by rfvv
  21. Physics

    To suck water up a straw to a maximum height of 98 mm, what minimum gauge pressure must be produced in the lungs?

    asked by Kim
  22. Physics

    Collapsible plastic bags are used in hospitals for infusions. We want to use such a bag to infuse a electrolyte solution into the artery of a patient. For this we mount the bag at a height h above the arm of the patient. Assuming that the particular gauge

    asked by Sam
  23. English

    1. A group of students help the sick. 2. A group of students helps the sick. (What is the difference between the two sentence? If both are grammatical, aren the following correct as well? ) 3. This is a group of students. 4. These are a group of students.

    asked by rfvv
  24. French

    Pratique Find out if your friends are doing what you think they're doing by forming questions using inversion. 1.Valérie/finir les devoirs Valérie finit les devoirs. 2.Christophe/parler avec le prof Christophe parle-t-il avec le prof. 3.Fatima/travailler

    asked by Anna
  25. physics

    The two blocks in the figureoscillate on a frictionless surface with a period of 1.7s . The upper block just begins to slip when the amplitude is increased to 38cm . What is the coefficient of static friction between the two blocks?

    asked by v
  26. mangerial economics

    a monopolist has the following demand and Tc functions: Q=2,500-25P TC= 100,000 + 20Q+ 0.05Q^2 How much consumer surplus ($) will a monopolist transfer to itself

    asked by Sam
  27. Physics

    The angular position of a point on the rim of a rotating wheel is given by è = 8.0t - 3.0t2 + t3, where è is in radians and t is in seconds. (a) What is the angular velocity at t = 5 s? ___________rad/s (b)What is the angular velocity at t = 7.0 s?

    asked by Jess
  28. Stats

    Time/CNN voter polls monitored public opinion for the presidential candidates during the 2000 presidential election campaign. One Time/CNN poll conducted by Yankelovich Partners, Inc., used a sample of n = 589 likely voters (Time, June 26, 2000). Assume

    asked by Desire
  29. Ms Sue + Dr Russ

    thankyou to both of you for your help its helped me alot and i am so grateful.:)

    asked by Sparkle
  30. English

    1. Look at the top left building in the picture. 2. Look at the bottom right building. It's name is Brownstone Middle School. When was it built? It was built 70 years ago. 3. What about Town Bank? We can not get any information from the script, so we don't

    asked by rfvv
  31. Physics 11

    A string that is 90cm long with a diameter of 0.75 mm and a tension of 60 N has a frequency of 100 Hz. What new frequency is heard when the length of the string is 100 cm long. Anyone help me please?

    asked by Andy
  32. physics

    A solid aluminum ingot weighs 89 N in air. What is its volume? The ingot is suspended from a rope and totally immersed in water. What is the tension in the rope?

    asked by Anonymous
  33. mathmatics( sequence and series)

    The sum of the first four terms of a G.P.is 30 and that of the last four terms is 960. If the first and the last term of the G.P. are 2 and 512 respectively, find the the common ratio

    asked by achyut
  34. Stats

    Assume we draw a simple random sample from a population having a mean of 100 and a standard deviation of 16. What is the probability that a sample mean will be within plus-or-minus two of the population mean for each of the following sample sizes? n = 50

    asked by Desire
  35. writing

    How do you imagine that collegiate writing experiences will differ from your other writing experiences?

    asked by tiny
  36. Physics

    a) Imagine you are swinging on a vine, like a pendulum. If the coefficient of friction between your hands and the vine is 0.5, what must your grip strength be compared to your weight to not slip? b) Research on grip strength shows that males have an

    asked by Tsukuyo
  37. assessment in learning

    define the ff: 1. written-response instrument give examples. 2. product rating scales 3. performance tests 4. oral questioning please help...thanks...

    asked by klarmaesen
  38. Gr 11 Physics Optics Unit

    Explain why a virtual image must always be upright.

    asked by JOC
  39. Stats

    Rising prescription drug prices caused the U.S. Congress to consider laws that would force pharmaceutical companies to offer prescription discounts to senior citizens without drug benefits. The House Government Reform Committee provided data on the

    asked by Desire
  40. Salary Related - Stats question

    The monthly starting salaries of students who receive engineering degrees have a standard deviation of $600. What sample size should be selected so that there is 0.95 probability of estimating the mean monthly income within $150 or less?

    asked by Desire
  41. English

    1. This is a group of about 10,000 volunteer doctors who help sick people everywhere. 1) This is a group of about 10,000 volunteer doctors. 2)The volunter doctors help sick people everywhere. 3) The/A group of about 10,000 volunteer doctors help sick

    asked by rfvv
  42. To Writeacher

    Are you still on here. I just posted my "fixed" critical analysis essay. Thanks again!

    asked by Crystal
  43. Math

    Write an equation that satisfies the condition parallel to the line y = -4x + 1

    asked by Jessica
  44. Algebra

    Can someone please check this to see if I have reduced to simplest terms: {(-x-y)X(x-y)}/ {(x-y)^2 + (x+y)^2} I get -1/2 (x-y)(x+y)divided by (x^2+y^2). Is this right and if so, can it be simplified any more? Thanks so much.

    asked by Jill
  45. Criminal Justice

    I am trying to find original court locations for a few famous criminals. I have looked on court tv and other websites, but cannot find a thing. Can someone please help me find a free website that gives out court case information.

    asked by Completely lost
  46. college algebra

    Please help in solving this problem using the method of substitution -2/3x + Y= 2 2x -3y =6 thanks for your time.

    asked by cheryl
  47. physics

    What happens to the gravitational energy of a firefighter when he slides down the fire pole?

    asked by carla jiggs
  48. Economics

    Can someone tell me if I have this right, or backwards?? When the US dollar depreciates foreign goods, assets, and services are more expensive and when the US dollar appreciates they are cheaper. Thanks

    asked by Sue
  49. English

    What kind of work is done by volunteers? 1. To help the handicapped to take baths and have meals. 2. To take care of children in/at orphanages. 3. To care for sick people/patients at hospitals. 4. To clean dirty places such as rivers, seas, and mountains.

    asked by rfvv
  50. Medical Information

    At Allendale Psychiatric Hospital, the hopital census on January 4 is 110. According to the following data, waht's the hospital census for January 5? Admissions 10, Discharges 2, A&D 1. A. 99 B. 100 C. 108 D. 118.

    asked by Sharon
  51. chemistry

    Hi can u help me in this question please? my question is explain the collision theory of reactions

    asked by Nifan
  52. math

    describe what the graph of interval [-4,10] look like?

    asked by dee
  53. MLA FORMAT

    There is apparently a new way of writing a bibliography in MLA format. I google searched and I'm not sure which is new and which is old. Could someone provide an example of how I would write the bibliography of a novel? Thank you

    asked by Lena
  54. biology

    1. name an organism in which the respiratory and circulatory systems are separate. 2. name an organism with a closed circulatory system that is not used for gas exchange. 3. name an organism whose waste gases accumulate in one system but then move to

    asked by Marina
  55. trigonometry

    Given Cos (theta)= 0.5, find Sin (theta) and tan (theta), correct to 2 decimal places.

    asked by shak
  56. anatomy and physiology

    Situation: You need to step up on a step to reach an object on a high shelf. Instructions: (Part one) Trace the nerve impulse, listing the steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to step up

    asked by Dena
  57. history

    i need to write an essay about General Haig include quotes from him,use examples from battle of the somme-how many casualties there were tactics used. thankyou

    asked by Sparkle
  58. Statistics

    A study of voting preferences among enlisted soldiers (of differing educational levels) in the military reveals the follow patterns (the sample size if 445). 1 Of 395 high school graduates, 90 describe themselves as Democrats, 170 as Independents, and 135

    asked by Desire
  59. algebra

    (x^2+6x+9) + (y^2-4y+4)= 12+9+4 is equal to (x+3)^2 + (y-2)^2=25 How, if this works, is it related to a perfect square quadratic? Have we seen this work done before with something other than circles?

    asked by Justin
  60. Literature

    Need help with this-- 'Describe two figures of speech and how they helped you see things differently in the poem 'Beware: Do Not Read This Poem' Thanks -MC

    asked by mysterychicken
  61. math

    Use two points on any horizontal line to illustrate why a horizontal line has a slope of 0...I'm really confused. Can anyone answer with an explanation?

    asked by Kyle
  62. College writing

    it's 5.5 pages double spaced: The Prophet Muhammad (PBUH) and his Impact on Mankind In order to analyze the impact of any person on humanity as a whole, it is very important that we examine the historical data and books on the person to understand the

    asked by y912f
  63. Algabra

    Landscape designers often use coordinate geometry and algebra as they help their clients. In many regions, landscape design is a growing field. With the increasing popularity of do-it-yourself television shows, however, many homeowners are becoming amateur

    asked by Isaac
  64. effective essay writing

    A healthful diet and regular exercise not only improves health, but lowers health care costs. What kinds of supporting paragraphs—examples, details, definitions, analysis, division and classification, process analysis, comparison-contrast, cause-effect,

    asked by james
  65. French

    You're talking to your french pal on the phone. Unfortunately, you have a bad connection. Rephrase each question you ask using inversion. 1.-Est-ce que tu danses bien? -Pardon? =Danses-tu bien? 2.-Tes amis et toi, vous allez souvent en boîte? -Pardon?

    asked by Anna
  66. 7th grade math

    How do you add this integer question: (+4.6)+(-2.5).

    asked by Lisa
  67. English

    We usually think volunteer work takes up a lot of time. But just a little time and effort can be a big help to others. For example, you can be a big brother or sister to young children in an orphanage. You can help people take care of old people in the

    asked by rfvv
  68. chemistry

    How many water molecules are in a 10.0g sample of water?

    asked by Anonymous
  69. Calculus

    Two people, Paige and Sandy, are racing each other. Assume that both their accelerations are constant, Paige covers the last 1/8 of the race in 5 seconds, and Sandy covers the last 1/5 of the race in 8 seconds. Who wins, and by how much?

    asked by Tim
  70. International Business

    What are the elements of Capital Budgeting? How do you determine these elements in the global business arena? How you use Capital Budgeting Analysis determine the desirability of global projects?

    asked by Monek
  71. Physics

    If I double the density of a fluid, the buoyant force on a given piece of material fully immersed in the fluid will?

    asked by Nikita
  72. chemistry

    Help!! The S block of the periodic table contains what type of metals?

    asked by Sarah
  73. Stats

    To compare the durabilities of two paints for highway use, 12 four-inch wide lines of each paint were laid down across a heavily-traveled road. The order was decided at random. After a period of time, reflectometer readings were obtained for each line. The

    asked by Desire
  74. college writing

    ok. so i found out that there is also an artistic scholarship program in the private college that i applied to. ONe of the helpers told me that if I send in a written portfolio, one of my best works, to the counselor, then they will decide if I can qualify

    asked by y912f
  75. English

    1. He spent all his life on taking care of sick people. 2. He spent all his life in taking care of sick people. (Do we have to use "in" or "on"? Which preposition is correct?)

    asked by rfvv
  76. 7th grade

    I have to write two paragraphs discussing the problem of winning support from other nations for the Patriot cause during the Revolutionary War. I don't know what the problem was. The French Spanish & Germans were eager to fight against the Engilish.

    asked by JT
  77. Criminal Justice

    Can someone please point me to a website that is free that has court cases on it? My professor wants us to find the original trial courts for these people: 1. Orenthal James Simpson 2. Theodore Kaczynski 3. Louise Woodward 4. Timothy James McVeigh 5. Lyle

    asked by Completely lost
  78. business communication

    teams typically go through five phase before becoming effective. briefly describe each of the following phases of team evolution. 1 orientation 2 conflict 3 emergence 4 reinforcement 5 brainstorming

    asked by jalal
  79. scholarship

    I need to apply to HOPE scholarship but I'm having some trouble. I've applied to two colleges already, one's public and one's private. So when I go to apply for HOPE, it tells me I can either apply to one that's for private and one that's for public

    asked by y912f
  80. Creative Writing

    What are 6 Goals for career?

    asked by Candace
  81. creative writing

    What can be 7 goals for the next 4 years?

    asked by Candace
  82. Psy 300

    make repudiation and ground rules that will come a day to arbitrary and station, perceptive, and attention to learning during your learning team meeting

    asked by judith
  83. Probability - Stats

    12. Recall from our discussion in class (also see the website) that the hypothesis testing framework can be applied by food and beverage companies seeking to hire “tasters” who have above average taste-discrimination ability. Suppose a brewer intends

    asked by Desire
  84. Probability - Brewer

    Suppose a brewer intends to use the triangle taste test method to identify the best applicants for the position of “taster.” (It does so because the company will want their tasters to have sensitive palates, and it will need someway of determining

    asked by Desire
  85. management

    What is employee self esteem?

    asked by stella
  86. math

    A community college has 3,000 students and 90 instructors. The college plans that enrollment will be 3,500 next year. How many new instructors should be hired if the college wants to keep the same student to instructor ratio?

    asked by tara
  87. Psy 300

    make recommendations and ground rules that will accommodate the auditory sensation, perception and ascension learnings during your learning team meetings

    asked by judith
  88. Math

    I need help trying to figure out how my teacher got from (x^2+6x+9) + (y^2-4y+4)= 12+9+4 to (x+3)^2 + (y-2)^2= 25

    asked by Justin
  89. English

    1. This is a group of about 10,000 volunteer doctors who help sick people everywhere. (What is the antecedent of the relative clause, "who-"? 1) a group of about 10,000 volunteer doctors 2) about 10,000 volunteer doctors ) 2. This is a group of Korean and

    asked by rfvv