Questions Asked on
June 21, 2012

  1. Physics

    You (65 kg) are standing in an elevator traveling upward that passes the 3rd floor at 3.5 m/s and then passes the 4th floor at 4.5 m/s one second later. Find the normal force exerted on your feet by the elevator while it is passing between these floors. I

    asked by Katie
  2. geometry

    As the marketing designer for Burger King, you are given a 4 in by 6 in logo and have been told to create an advertisement that is six times larger. What is the area of your advertisement (in feet)? [12 inches = 1 ft] Enter the numerical answer only

    asked by Anonymous
  3. English

    1. Will you play a song for me? 2. Will you play a musical instrument for me? 3. Will you turn a umsic record on for me? (Does #1 mean #2 or #3? What is the meaning of #1?)

    asked by rfvv
  4. physics

    A dad pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 16 rpm in 11.5 s. Assume the merry-go-round is a uniform disk of radius 3.0 m and has a mass of 790 kg, and two children (each with a

    asked by brooke
  5. chemistry

    I have my exam in a little over 7 hours...can anyone help explain how to draw atoms in the Bohr Rutherford and Lewis Dot methods, as well as how to draw them as compounds and ions? My friends are no help, nor is the internet. Please!

    asked by Sydney
  6. Chem(Check Please)

    Will someone please check my answers for me? I put arrows(

    asked by Anonymous
  7. chemistry

    An ice cube of mass 10g at -10C is added to the beaker containing 150mL of water at 88.5C. Assuming no heat is lost to the surrounding; calculate the equilibrium temperature for the liquid after the ice melts.(Heat of fusion for H2O = 6.01 kJ/mol. Heat of

    asked by Bill
  8. Physics

    Block 1 (2.5kg) is on the surface of a frictionless inclined plane that makes an angle of 20 degrees with the horizontal. Assume g = 10 m/s2 magnitude of the acceleration of block 1 down the incline plane is 3.4 m/s2 How far does block 1 travel down the

    asked by Janelle
  9. Calculus 1

    Derivative of 7^(SinX)... something to do with log/ln?

    asked by Max
  10. Chemistry

    If I have storage tank containing 3.8 X 10E5 liters of water that is contaminated with NaOH and has a pH of 10.82. What volume of 0.1 M HCl is required to bring the pH= 7.0?

    asked by Nicole
  11. Math

    A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with a standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval.

    asked by Jameson
  12. Math

    A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with a standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval.

    asked by Jameson
  13. Chemistry

    If 2.80 kJ of heat is needed to raise the temperature of a sample of metal from 10.°C to 27°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 40.°C to 58°C?

    asked by Joseph
  14. Math 81

    How can $60,000 be invested, part at 7% annual simple interest and the remainder at 12% annual simple interest, so that the interest earned by the two accounts will be equal?

    asked by Charlene
  15. Chemistry-please help!

    What is the meaning of combining power of elements and radicals?

    asked by Richard R.
  16. Chemistry-please help!

    What is the chemical formula for alluminium hydroxide?

    asked by Jeconiah
  17. Chemistry-please help!

    What is the chemical formula for alluminium hydroxide?

    asked by Jeconiah
  18. Chemistry-please help!

    What is the meaning of combining power of elements and radicals?

    asked by Richard R.
  19. drawing

    please give me some important tips about decoration of a science chart based on 'tiger in trouble.'

    asked by edward
  20. Foreign languages

    I urgently need you to check these few sentences. Thank you. 1) The flowers are not described as statically as in a painting but (as) alive with motion. 2) Her mind moves back and forth in time, whereas she stays fixed in the sitting of her second holiday

    asked by Mike
  21. Foreign languages

    I urgently need to check how to rephrase modals expressing possibility/probability etc. 1. I’m sure/certain he didn’t rob the bank. He can't have robbed the bank (only choice) 2. I’m certain/sure he stole the ring from Peter William’s bedroom. He

    asked by Mike
  22. sports

    hi i am having problems with a essay on national governing bodies. can you help me with-- 1. who awards it 2. how do you achieve it. 3. what are strenghts in terms of improving quality of sports development opportunities for participants 4. and weeknessess

    asked by elizabeth
  23. math

    A tank, with a rectangular base and having vertical sides of height 4 m, is initially full of water. The water leaks out of a small hole in the horizontal base of the tank at a rate which, at any instant, is proportional to the square root of the depth of

    asked by Maya
  24. Math

    i am a four digit numeral number between  3000 and 4000.My ones digit is 3 greater than my thousands digit.The two other digits are the same.If the sum of my digit is 20,what number am i?

    asked by Anne
  25. trigonometry

    an automobile tire has a diameter of 36 inch.how many revolution will the wheel make an arc the automobile travels 1 mile (5280 A)?

    asked by erin
  26. Science

    can anyone please give me an example of a numbered key (classification) for these organisms about their structural features? squirrel,turtle, emu, goldfish and mouse. i need to make three but i need one example... thank you

    asked by Maria
  27. Chemistry(Please Respond)

    Willsomeone, please check my answers? (

    asked by Anonymous
  28. Biology

    When a grouse eats berries, the berry seed are eliminated as waste materials and may be dropped in another part of the forest where they may sprout and eventually grow into new berry plants. How would you classify the symbiotic relationship between the

    asked by BDM
  29. Biology

    The function / effectiveness of an enzyme can be disabled by the slightest change in the sequence of its proteins. What prevents an enzyme from performing its functions in the event that its protein sequence is changed?

    asked by BDM
  30. chemistry

    a 230.0ml sample of a 0.275 molarity solution is left on a hot plate over night the folowing morning the solution is 1.5 molarity. what volume of solvent has evaportated from the 0.275 molarity solution?

    asked by kristen
  31. chemistry

    a 230.0ml sample of a 0.275 molarity solution is left on a hot plate over night the folowing morning the solution is 1.5 molarity. what volume of solvent has evaportated from the 0.275 molarity solution?

    asked by kristen
  32. chemistry

    a 230.0ml sample of a 0.275 molarity solution is left on a hot plate over night the folowing morning the solution is 1.5 molarity. what volume of solvent has evaportated from the 0.275 molarity solution?

    asked by kristen
  33. physics

    The box decelerates at a rate of 3m/s and skids 24 meters becoming to a stop.How fast were you traveling when the box fell out.

    asked by Ray
  34. Maths

    Determine the coefficient of x^5 in the binomial expansion of (2-3x)^7?

    asked by arif
  35. math

    find the value of y in this equation: 16y=164

    asked by tia
  36. math

    given the formula D=ABC, what is the formula for C?

    asked by tia
  37. math

    solve the following equation: 6y - 20=2y -4

    asked by tia
  38. physics

    What is the restoring force of a spring stretched 0.35 meters with a spring contact of 55 newtons/meter?

    asked by Anonymous
  39. Physics question

    1.) If the curling stone was initially sliding at 2.97 m/s and stopped precisely 10.8 meters from its launch point, then the coefficient of friction (the ratio between the magnitude of the frictional force and the magnitude of the normal force) was? 3.)

    asked by Christina
  40. geometry

    DC = 10 What is the measure of angle ABD?

    asked by VEE
  41. Physics HELP!

    A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C? 94.4cm3 was the answer I put and I was wrong. Can someone help?

    asked by Alec
  42. Physics

    A cube of wood and a cube of concrete, each 0.17 m on a side, are placed side by side. One of the long faces of the rectangular prism formed by the two cubes is held at 17°C, and the opposite long face is held at 32°C. What is the total rate of heat

    asked by Emily
  43. Physics help

    At 265 K, the pressure of 0.0454 mol of an ideal gas is 1.42×105 Pa. What volume does the gas occupy?

    asked by Teresa
  44. Physics

    In coastal towns, breezes tend to blow offshore (from the land to the ocean) during the night and early morning, and onshore (from the ocean to the land) during the afternoon and evening. What factors primarily contribute to this effect? It can be more

    asked by Bobby
  45. frictionless ramp

    Suppose a 19.3 kg curling stone was on a frictionless ramp. If the ramp is 4.76 m tall and 19.5 m long (along the incline), how much mass must hang from the pulley in order that the stone not accelerate up or down the ramp?

    asked by Brittney
  46. us history grade 7

    what are the pros and cons of the fur trade?

    asked by kyle
  47. geometry

    Find the total area for the cylinder with the given measurement. r = 2, h = 4

    asked by moe
  48. information literacy

    3. Which of the following sets of Library of Congress call numbers is in the correct order? A. E88 G62 L166 1995, E88 G62 L45, E88 G62 D225, E88 G2512 S57 1998 B. E88 G2512 S57 1998, E88 G62 D225, E88 G62 L45, E88 G62 L166 1995 C. E88 G2512 S57 1998, E88

    asked by tania
  49. Finte Math - Simplex Method

    Just a few questions to make sure I am understanding the simplex method. First you set up matrice, then you find the column with the largest negative number in bottom row. That is the column you will pivot. So then how do you determine which row is the

    asked by Robson
  50. Chemistry

    Iron (III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3 are formed when 16.7 g of Fe reacts completely with oxygen? a. 12.0g b. 23.9g c. 47.8g d. 95.6g

    asked by Summer
  51. Physics

    A gas is sealed in a container with rigid walls that allow heat to flow through them. A thermal process takes place on the gas. What would be the best model for the type of process?

    asked by Peter
  52. to ms.sue- science project part 1

    Please select one of the four solar-energy-based topics listed below to research. Based on your research you are to create a poster that details what you learned. Please make a bibliography of the resources that you used for your information, to go along

    asked by Celest
  53. Physics

    A system performs 349 J of work on its surroundings while losing 133 J of internal energy. Determine the heat transferred to the system during this process.

    asked by Kaley
  54. calc

    At what rate is the amount of material growing if bacteria in a sample increases to 250 when the sample is observed for 150 minutes?

    asked by kris
  55. To DrBob222(Please check Chem)

    (This homework question has been removed due to a copyright claim submitted by K12 Inc.)

    asked by Liz
  56. chemistry

    why the increasing in substrate concentration increase in the rate of reaction of enzymes.

    asked by Anonymous
  57. algebra

    How can I solve a graduated commission scale.

    asked by Pam
  58. to ms.sue-science project part 1

    so is the project basically asking to write down details abd information i learned about solar cars and to write down the websites? please read this and describe to me: Please select one of the four solar-energy-based topics listed below to research. Based

    asked by Celest
  59. reading

    Renee has a research paper due in three days. She has set aside two hours to complete this task. What is wrong with this study goal? A. The time she has allotted is not realistic. B. The goal is not concrete and specific. C. It is not significant and

    asked by Anonymous
  60. GEOMETRY

    3. A ladder leaning against a wall makes a angle with the ground. The base of the ladder is 4 meters from the building. How high above the ground is the top of the ladder?

    asked by MAKIL
  61. Chemistry

    How would you go about solving an equation like this when all they give you is a equilibrium equation?: Given the standard free energies of formation in Appendix B in the textbook, what is the value of E ^\circ for the cell reaction?

    asked by Claire
  62. statistics

    IQ scores are normally distributed with a mean u = 100 and a standard deviation o =15. Based on distribution, determine % of IQ scores between 100 and 120 =

    asked by Dianne
  63. Chemistry

    How would you go about solving an equation like this when all they give you is a equilibrium equation?: Given the standard free energies of formation in Appendix B in the textbook, what is the value of E ^\circ for the cell reaction?

    asked by Claire
  64. Foreign languages

    Writeacher, I started to questions with "Briefly outline", I need to find a synonym for "outline". 1)Briefly outline the main values on which Victorian society was based....

    asked by Mike
  65. bus 219

    technology environment for Club IT

    asked by Anonymous
  66. Physics

    As its volume is doubled from an initial value of 0.088 m3, a sample of gas is held at a constant pressure of 3.4 × 104 Pa by heating. Then, while a constant volume is maintained, the gas is cooled back to its initial temperature. The work that the gas

    asked by Kaley
  67. Maths

    A cyclist rides one lap of a circular track at a constant speed so that the riders distance, d meters, from the starting point at any time, t seconds, after starting is: d= (50) - ( 50cos x (pi)t/30, find: (a) the time taken to complete one lap (b) the

    asked by arif
  68. poisoning

    what is the most effective way to prevent carbon monoxide poisoning is by?

    asked by Anonymous
  69. Calculus

    Evaluate each limit. If it exists. a) Lim x^3 + 1 x->1 ------- x + 1 b) Lim 3x^2 - x^3 x->0 ---------- x^3 + 4x^2 c) Lim 16 - x x->16 --------- (√x) - 4

    asked by Jessica
  70. Calculus

    differentiate each function a) y = (cscx)(cotx) b) y = x^2 + e^(2x)

    asked by Jessica
  71. Calculus grade 12

    hi i need help differentiating these.. 1. y = cos(3x^2 + 2x) 2. y = ln(3x^2 + 5) thank you

    asked by Albert
  72. Calculus grade 12

    find dy/dx by implicit differentiation a) xy + x^5y^2 + 3x^3 - 4 = 1 b) lny = cos x thank you

    asked by Albert
  73. Chemistry

    An ice cube of mass 10g at -10C is added to the beaker containing 150mL of water at 88.5C. Assuming no heat is lost to the surrounding; calculate the equilibrium temperature for the liquid after the ice melts.(Heat of fusion for H2O = 6.01 kJ/mol. Heat of

    asked by Anonymous
  74. Research

    True or False Researchers who have strong opinions about the subject of a study are likely to do a better job of conducting the research. False, strong opinions could lead to bias results.

    asked by Lis
  75. Calculus grade 12

    find the slope of the tangent line to y^4 = 3x^2 - 2x at the point (1,1)

    asked by Albert
  76. math/prealgebra

    5 is 20% of what number? I am so lost

    asked by logan
  77. anonymous

    At 1 atm, how much energy is required to heat 55.0 g of H2O(s) at –20.0 °C to H2O(g) at 163.0 °C?

    asked by Anonymous
  78. Calculus review

    use the first derivate test to locate the maxima and minima of y = x^(1/3)

    asked by Lilliana
  79. calculuss review for exam

    use the second derivate test to locate the maxima and minima of y = x^2 + 2x - 3

    asked by Amarjeet
  80. research

    True or False Research may be used as a diagnostic tool to provide information about what is happening in the enviroment? True

    asked by Lis
  81. Calculus

    consider the function y = 2sinx a) determine dy/dx b) calculate the exact value of x for which the slope of the tangent to the graph is √2 in the interval [0, pie] c) determine the equation of the tangent in part (b). d) determine the y-intercept of the

    asked by Sarah Berkley Adamson
  82. Physics

    A uniform rigid pole of length L and mass M is to be supported from a vertical wall in a horizontal position, as shown in the figure. The pole is not attached directly to the wall, so the coefficient of static friction, μs,between the wall and the pole

    asked by James
  83. English12

    Below, you will find a list of sentences. After each sentence, select true if the topic of the statement is suitable to form the basis of a single persuasive paragraph. If the topic of the statement in your textbook is unsuitable for a single persuasive

    asked by Sam
  84. Chemistry (1Question)

    This is really confusing. I know how to do the equilibrium which also has to do with reaction rates but they didb't give it to me as a choice. Please Please help me. I post other questions that i answered already but no one answered me. I just needed

    asked by Liz
  85. phy science

    a 20,000kg railroad car is traveling at 3m/s when it collides and couples with a second, identical car at reat. What is the resulting speed of the combined cars?

    asked by amy
  86. Implicit differentiation calculus

    PLEASE HELP , I DON'T UNDERSTAND find dy/dx by implicit differentiation a) xy + x^5y^2 + 3x^3 - 4 = 1 b) lny = cos x thank you

    asked by Albert
  87. Calculus exam review, PLEASE HELP!!

    for each function, determine the equation of the tangent line to the graph for the indicated value of the variable. a) y = 3cosx + 4sinx + 1 , when x = pie b) y = x - 3cosx , when x = (5pie)/3

    asked by stephanie
  88. Calculus exam review, PLEASE HELP!!

    find the angle between these lines [x,y,z] = [3,4,1] + s[-1,5,-2] [x,y,z] = [8,5,-9] + t[2,3,-6]

    asked by stephanie
  89. geo

    What is the distance between the points (6, 32) and (−8, −16)?

    asked by dazja
  90. geography

    Due to its remote,mountainous location and the way of life of its people, Albania has often?

    asked by asa
  91. Math

    emily is constructing a triangle one side is 3 inches long and another is 5 inches long which of the following is the smallest measure emily could use for the third side of the triangle is it 2 inches? 3 inches? 4 inches? or 5 inches?

    asked by Lisa
  92. Economics

    How would you expect the return on a stock market fund to differ from the return on savings account? Why do you think the two rates of return differ?

    asked by Kathy
  93. reading

    the first sentence of your introductory paragraph should do all of the following EXCEPT:

    asked by Clueless
  94. math

    what is the value of 2x+5+3=

    asked by junior
  95. Science help

    Will someone please check my work for me? Molecules involved in a chemical reaction must meet to react. What is this concept called? entropy enthalpy collision theory

    asked by Napolian 2
  96. Research

    If Dr. Robinson rejects the null hypothesis after observing a test statistic which exceeds the critical value at the .05, there is

    asked by Steely
  97. Calculus grade 12 exam review PLEASE HELP ASAP !!

    PLEASE HELP ME! Exam is in an hour and i need to finish this exam pre-test to help me ! consider the function y = 2sinx a) determine dy/dx b) calculate the exact value of x for which the slope of the tangent to the graph is √2 in the interval [0, pie] c)

    asked by Sarah Berkley Adamson
  98. Reading

    Which of the following is the most effective opening sentence for an introductory paragraph? A. I heard a loud sound before I collapsed B. Bang! That was the last soound I heard before I collapsed. C. The loud sound was the last thing I heard before I

    asked by Clueless
  99. Physics

    The diagram for this problem is a pulley. On the left end Box 1 is sitting on a table and Box 2 is attached sitting on top of Box 1 and is attached to the string for the pulley. The right side has the string attached to Box 3 which is lifted off the table.

    asked by Caitlyn
  100. Grammar

    Choose the correct answer I put my answers in CAPS: 1) Neither his physician nor the floor nurses HAVE been in to see him yet this morning. 2) On sponge and instrument count, it was noted that one of the sponges WAS missing. 3 The costs of his research

    asked by Lori
  101. Physics

    A 3.1 kg ball is tied to a string and swung in a horizontal circle at a speed of 7.2 m/s. the radius of the circle is 2.2 m. What angle does the string make with the horizontal? What is the tension in the string?

    asked by Stephanie
  102. CALCULUS EXAM REVIEW

    Hi, my exam is tomorrow and I'm here with my girlfriend who's also in the same class trying to figure out how to do the exam review but we're stuck.. please be kind and help us out, we'd really appreciate it. Thank you in advance. QUESTION: Write a vector

    asked by Roberto & Cecilia
  103. Grammar

    Specify if sentences are complete, fragments or run-on: 1) The surgical team recommended that surgery be performed as soon as possible, the patient, however, wanted more time to think about it. SENTENCE FRAGMENT 2) Postoperative plan is for the patient to

    asked by Lori
  104. calculus exam review

    write two different vector equations for the plane that contains the points A(6,1,4), B(-3,7,9), C(5,0,3)

    asked by Roberto & Cecilia
  105. Grade 12 Calculus University

    Hello ^___^ Please help me! Thank you very very much! Determine if the planes are parallel. [x,y,z] = [1,2,2] + s[0,-1,0] + t[0,0,1] [x,y,z] = [1,0,-3] + s[0,0,1] + t[-1,0,0] thank you ^__^Y

    asked by Miyako
  106. Statistics

    The minimum or maximum value that one would expect the test statistic to yield if the null hypothesis is true is an example of which of the following

    asked by Anonymous
  107. Grammar

    Identify the tenses (past, present, mixed): 1. Synthes self-retaining anterior cervical retractors were then placed behind the longus colli muscles. PAST TENSE ________________________________________ 2. There was a small rent in the middle left posterior

    asked by Lori
  108. Art

    go to yah oo and type in Facade de StTrophime d'Arles then go to the first site listed. Scroll down to the Tympan et archivolte. What is the story behind that sculpture?

    asked by Anonymous
  109. math

    A cylindrical tank has a radius of 15 ft. and a height of 45 ft. How many cubic feet of water can the tank hold?

    asked by Misty
  110. Criminal Justice -rsearch and statistics

    I have to write a description of an original research project at least 4 pages long. I have to formulate a theory based on any subject that is relevant to the criminal justice system. My theory should be a definitive statement . There are 3 sections;

    asked by Lonni
  111. Essay

    The body of your essay contains which of the following? A. The longest section of the essay B. The supporting details. C. A Conciluding sentence D. All of the above

    asked by Clueless
  112. writing essay

    Catherine received a 70 on her essay because the vocabulary was basic and there was a lack if clear and active voice. Which of the following areas of her essay were weak? A. Organization B. Mechanics C. Content D. Style

    asked by Clueless
  113. writing essay

    Jack was told the overall content of his paper was weak. What does this mean? A. The tone of his paper was not original B. He had to many grammatical errors C. The overall ideas in his essay were not fully developed D. The flow of his essay was

    asked by Clueless
  114. What does this mean

    What does this mean? The tympanum of St. Trophimus takes up the theme of biblical tetramorph evoking the vision of Ezekiel and the Apocalypse of St. John, then a symbol of the four Evangelists, it shows a triumphant Christ and dispenser of justice, seated,

    asked by Anonymous
  115. Trig

    Jessica attains a height of 4.7 feet above the launch and landing ramps after 1 second. Her initial velocity is 25 feet per second. To find the angle of her launch, which equation can you use with the given information to solve for θ? (Answer: 1 or 2).

    asked by Jessica
  116. Math

    What is the volume of a cubed shaped box with edges 6 centimeters in length

    asked by Misty
  117. math

    (1)How much water can be held by a cylindrical tank with a radius of 12 feet and a height of 30 feet. (2)The diameter of a frisbee is 12 inches, what is the area of the frisbee

    asked by Misty
  118. Trig

    Since the center is 6 feet above the water, the horizontal line of symmetry of the sine curve will be 6 units above the x-axis. This information helps you find the value of vertical shift. Write its value.

    asked by Jessica
  119. Trigonometry

    Since the radius of the wheel is 7 feet, point P goes 7 feet above and below the center of the wheel. From this information, you can find the amplitude. Write the value of this constant.

    asked by Jessica
  120. lsu

    I want to check and see if I understand an independent clause and a dependent clause. In this sentence. "Bethany went home and spoke with her mother about tomorrow's parade. Do I have 2 independent sentences?

    asked by beverly
  121. accounting

    Plasto Products does not pay income taxes and has one owner Is this corporation, partnership or sole priortership

    asked by Anonymous
  122. Foreign languages

    Writeacher, can you please check these sentences? Thank you. 1 Talk about the place where you live using the following grid: . – What is your town like – How long have you lived there – if you like it or not and why – If you don’t like it where

    asked by Mike
  123. Foreign languages

    I left out these sentences. Can you please check them? 1) You bought a new pencil case, but it wasn’t necessary. 2) It wasn’t necessary for her to follow her father’s advice. 3) I’m sure he didn’t steal the money. Is it possible for you to close

    asked by Mike
  124. chemstry

    In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH)2 was added to 50.0 mL of 0.680 M HCl. The reaction caused the temperature of the solution to rise from 23.69 °C to 28.32 °C. If the solution has the same density and specific heat as water,

    asked by cassie
  125. Trigonometry

    The wheel makes 6 complete revolutions every 60 seconds. From this information, you can find the value of constant b. The constant is π/?. (Enter only the value that replaces the question mark.)

    asked by Jessica
  126. Statics

    Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work. Class Frequency 61-63 19 64-66 17 67-69 5 70-72 10 73-75 12

    asked by kesha
  127. Trig

    P was at its maximum after 5 seconds. Use this information to write the value of the last constant, h. (If the value is a fraction, use a slash to separate the numerator from the denominator without spaces, such as 3/4.)

    asked by Jessica
  128. Trig

    Sketch the graph through at least one complete cycle. Label the axes on the coordinate plane. Use your graph to predict the height of point P above the surface of the water when the stopwatch shows 7 seconds. Round to the nearest tenth of a foot. (Enter

    asked by Jessica
  129. English(check)

    Will someone please check my answers. I'm not sure what is the answer for #1. It is just too confusing. ** Italic. ()underlined. 1)Choose the answer that tells how to correct the sentence. If the sentence is correct, choose "correct." “I’ll make a deal

    asked by Anonymous
  130. physics

    At the top of the serve, the racket has an angular speed of 23.7 rad/s. If the distance between the top of the racket and the shoulder is 1.39 m, find the magnitude of the total acceleration of the top of the racket.

    asked by Anonymous
  131. Physics(Please help)

    The intensity (in W/m2) of one sound is 4.83 times as great as the intensity of another sound. Relative to the quieter sound, what is the intensity level â of the louder sound? I am not sure how to start this. Thank you.

    asked by Hannah
  132. Chemistry

    In the following experiment, a coffee-cup calorimeter containing 100. mL of H2O is used. The initial temperature of the calorimeter is 23.0 degrees C. If 3.80 g of CaCl2 is added to the calorimeter, what will be the final temperature of the solution in the

    asked by Abby
  133. Physics(Please check)

    A paperweight, when weighed in air, has a weight of W = 6.95 N. When completely immersed in water, however, it has a weight of Win water = 4.26 N. Find the volume of the paperweight. Would I multiply the two values of weight and then by the density of

    asked by Hannah
  134. Physics

    If you run 100 m at 5 m/s and 300 m at 1 m/s, what is your average speed?

    asked by anonymous
  135. Physics

    A pot contains 243 g of water at 78°C. If this water is heated and all evaporates to form steam at 100°C, what is the change in the entropy of the H2O?

    asked by Alex
  136. Geometry

    Joel is laying pipe for a sprinkler system before he plants his lawn.The lawn is a rectangle 15 feet long and 8 ft wide. He needs to lay a piece if pipe that will run diagonal along the lawn. It will divide the area of the lawn into two right triangles.

    asked by Ashley
  137. Physics

    Three fixed charges are located along a line. The - 2 C charge is 10cm to the left of the +5 C charge and the -4 C charge at 4 cm to the right of the +5 C charge. a.what is the force exerted on the -4 C by the +5C charge? b.what is the force exerted on the

    asked by Jennifer
  138. COM200: Interpersonal Communication

    concepts concerning the “self.” How do all these concepts relate to interpersonal communication? Also, give an example of how your “self-concept,” “self-image,” or “self-esteem” has affected your interpersonal communication.

    asked by CHELLEY
  139. Physics(Please help)

    What is the smallest number of whole logs (ñ = 725 kg/m3, radius = 0.0800 m, length = 3.60 m) that can be used to build a raft that will carry four people, each of whom has a mass of 60.0 kg? I do not know how to start this.

    asked by Hannah
  140. geometry

    The size of a bicycle is determined by the diameter of the wheel. You want a 22-in bicycle for your birthday. What is the area of one of the wheels?

    asked by briana
  141. physics ...plzzzz help...

    Why is glass transparent to visible light but opaque to ultraviolet or infrared light ?? can anyone give me a detailed explanation for it coz i knw the general thing that because they have different wavelengths.....

    asked by matin
  142. Physics(Please help)

    A gas, while expanding under isobaric conditions, does 660 J of work. The pressure of the gas is 1.40 x 105 Pa, and its initial volume is 1.70 x 10-3 m3. What is the final volume of the gas? Would I multiply the two values?

    asked by Hannah
  143. English II

    What role does the oral tradition play in folklore?

    asked by Marques
  144. English II

    Define and give examples of myth and legend.

    asked by Marques
  145. Chemistry

    A calorimeter contains 30.0 mL of water at 11.0 degrees C. When 1.50 g of X (a substance with a molar mass of 65.0 g/mol) is added, it dissolves via the reaction: X (s)+H2O (l) ---> X (aq) and the temperature of the solution increases to 26.0 degrees C.

    asked by Abby
  146. Physics(Please respond)

    A system does 210 J of work on its environment and gains 80.6 J of heat in the process. Find the change in the internal energy of (a) the system and (b) the environment. Physics(Please respond) - Elena, Thursday, June 21, 2012 at 2:33am ÄU = Q - W Where

    asked by Hannah
  147. chemistry

    An 80.0-gram sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was done by the system and its internal energy increased by 8905 J. What is the specific heat of the gas?

    asked by cassie
  148. MICROECONOMICS

    how does subsidy in education in govt. institutions affect financial aid for private institutions?

    asked by Titir
  149. Art

    Who is the artist of the relief sculpture, The Last Judgment, In Vezelay? I can't find it anywhere.

    asked by Anonymous
  150. art

    Looking at the examples from the Whitney collection, what qualities do the art work have in common?

    asked by Nancy Reaves
  151. Chemistry

    Calculate the pressure, in atmospheres, of 2.80 moles helium gas in a 18.0 liters container at 24 degrees celcius.

    asked by Christinaa
  152. Science

    What happens to approximately 60% of the energy released during the complete oxidation of glucose? A) It is used to synthesize more ATP. B) It is reused to supply the energy for anabolic reactions. C) It is stored in the body as fat. D) It is lost by the

    asked by Marissa
  153. physics

    a 840 N crate rests on the floor how much work is required to move it at constant speed 5.5m along the floor against a friction force 180 N?

    asked by brl
  154. English

    I'm needing help editing a couple of paragraphs for a descriptive essay. These are the instructions I was given: --Mark up the paragraphs with specific observations and comments regarding general writing issues, but give specific comments related to

    asked by Anonymous
  155. physics....

    Cherenkov radiation is light emitted by a particle moving through a medium with a speed greater than the speed of light in the medium. (Note: The speed of the particle is not greater than the speed of light in a vacuum.) Consider a beam of electrons

    asked by matin
  156. statistics

    for a population with mean of u=50 and a standard devation o=8,find the following raw scores corresponding to each of the following z scores. z score 2.50,-.50,-1.50,.25,-1.00,.75 find the raw score(x) of the above numbers

    asked by irene
  157. physics

    pipe to know how the inner diameter changes. Rank in order from largest to smallest the gas speeds va, vb, and vc at points a, b, and c. Explain in complete sentences.

    asked by steph
  158. Grammar ( Need help Ms. Sue )

    Directions: Read each passage and ask yourself, ''What is the author doing in this paragraph?'' Write each anser in the summary box and then think of an appropriate title for the passage based on the main idea of the passage. 1 A penny for your thoughts?

    asked by Losa