1. maths --plse help me..

    A toy is in the shape of a right circular cylinder with hemisphere on one end and a cone on the other . The height and radius of the cylindrical part are 13 cm and 5 cm respectively. The radius of the hemispherical and conical parts are the same as that of

    asked by sarika on December 4, 2012
  2. Astronomy

    Hi! ____ 11. What molecules can be found in the interstellar medium? (1 point) a) water, carbon dioxide, and hydrogen b) oxygen, nitrogen, and ammonia c) nitrogen, carbon dioxide, and oxygen d) hydrogen, helium, and methane My Answer: B Could someone

    asked by Da Fash on November 24, 2017
  3. Math

    a. For the first company, express in words the amount the cab company charges per ride and per mile. Charges per ride $3.00 per mile $0.50 b. Write an equation in slope-intercept, point-slope, or standard form. Explain why you chose the form you did. Don't

    asked by Coolio on November 14, 2017
  4. English Literature

    Which of the following statements is true of both third-person objective and third person-omniscient point of view? a. the narrator observes and participates in the story's action. ***** b.The narrator observes but does not participatein the story's

    asked by Anonymous on August 21, 2018
  5. maths --Surface area and all that..

    A toy is in the shape of a right circular cylinder with hemisphere on one end and a cone on the other . The height and radius of the cylindrical part are 13 cm and 5 cm respectively. The radius of the hemispherical and conical parts are the same as that of

    asked by manraj on December 4, 2012
  6. physics

    A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm + 10^-9 m) . The nanofiber is the black horizontal line-its attached to a substrate (an immovable wall) on the left. The plot is a graph of

    asked by Maggie on November 22, 2009
  7. physics

    A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm = 10^-9 m) . The nanofiber is the black horizontal line-its attached to a substrate (an immovable wall) on the left. The plot is a graph of

    asked by maggie on November 23, 2009
  8. physics

    A small particle of mass 2.0 x 10^-19 kg is attached to a string of relaxed length 0.50 nm .The string is the black horizontal line attached to a an immovable wall on the left. The plot is a graph of the force needed to stretch the string by pulling to the

    asked by maggie on November 21, 2009
  9. English

    1. I am in the video media club. We learn how to make videos and upload them on the Internet. 2. I am in the print media yp club. We learn how to make documents and make books. 3. I am in the information communication yp club. We learn about computer and

    asked by rfvv on March 31, 2010
  10. English

    i take better quotes from story a few notes for orpheus i need help choosing best 5 ones. all these show theme really well so i not know which 5 to choose. "I was almost glad to hear her. But something must be wrong. She never phoned me." "Will you come up

    asked by Mohammad on February 18, 2012
  11. trig

    I have finished the questions for the following, but could someone please check to see if my answers are right because there are no answers for these questions since it's a sheet that my teacher gave us. Ok, just let me know where my errors are and what is

    asked by Ske on April 26, 2009
  12. Calculus

    Let f be a twice-differentiable function defined on the interval -1.2 less than or equal to x less than or equal to 3.2 with f(1)=2. The graph of f', the derivative of f, is shown on the right. The graph of f' crosses the x-axis at x=-1 and x=3 and has a

    asked by Madeline on December 19, 2012
  13. physics

    A pitcher throws a 0.141-kg baseball toward the batter so that it crosses home plate horizontally and has a speed of 42 m/s just before it makes contact with the bat. The batter then hits the ball straight back at the pitcher with a speed of 50 m/s. Assume

    asked by king on November 30, 2015
  14. Health

    15. Strong social bonds and a good support system can block the negative effects of stress in your life. Which factor can be a poor choice for blocking the negative influences? (1 point) A.associating with peers who are drug free B.having friends who are

    asked by Jessica on May 23, 2017
  15. Physics

    In Pittsburgh, children bring their old jack-o-lanterns to the top of the Carnegie Science Center for the annual Pumpkin Smash and compete for accuracy in hitting a target on the ground. Suppose that the building is 23m high and that the bulls-eye is a

    asked by Chris on April 11, 2018
  16. english

    27. What two things is F. Scott Fitzgerald comparing metaphorically by choosing "Babylon Revisited" as the title of his story? (1 point) A)an ancient, ruined city and Charlie's former life of excess B)a place of peace and harmony and Charlie's previous

    asked by anonymous on February 27, 2014
  17. Psychology

    Sound that impinges on the inner ear and the auditory nerve arrives as a fairly meaningless stimulus. At this point, it should be viewed as: a. perception. b. sensation. c. an auditory stimulus item. d. free of environmental noise. I think it is either a

    asked by Kasey on November 7, 2011
  18. Differential Equation 4

    A differential equation governing the velocity v of a falling mass m to air resistance proportional to the square of the instantaneous velocity is m dv/dt=mg-kv^2 where k>0 is a constant of proportionality. The positive direction is downward. (a)Solve the

    asked by ijat on April 6, 2015
  19. pre-calculus

    Move point (3,50 degrees) according to the following symmetries (keep positive) a. symmetrical to the origin b. symmetrical to theta=0 degrees c. symmetrical to theta= 90 degrees

    asked by Don on June 2, 2013
  20. math

    The vertices of a rectangle are R(-5,-5), S(-1,-5), T(-1,1), and U(-5,1). After translation, R prime is the point (0,-13). Find the translation vector and coordinates of U prime. I got (5,-8) as my translation vector and (0,-7) as U prime. Is this right?

    asked by keisha on November 23, 2007
  21. Math

    A man walks 3 miles due east, then 4 miles due north, then five miles due east. How far is he from his starting point?

    asked by Annie on October 25, 2015
  22. Grammar

    ***I know the identifying is done correctly I just need to know if the paragraph is grammatically correct and makes since. ***Sorry that it was so long I hope this is better. Review the four paragraphs below. There is one paragraph matching each of the

    asked by Angelina on June 10, 2011
  23. Electricity

    A battery is connected to the endpoints A and B of a homogeneous wire. Using an ammeter one finds that a current I = 1.5 A flows through the conductor. Then, the wire is bent in the form of a circle and the same battery is connected to points A and B. What

    asked by Anonymous on December 9, 2013
  24. math

    1. nathan is climbing 25ft ladder oeaning against a tree. the foot of the ladder is 15ft from the base of the tree, what is the measure of the angle the ladder makes with ground. 2.erin is flying an plan at 3000 ft high, she sees her house at 32 degrees

    asked by rhita on May 20, 2013
  25. physics

    Two identical small insulating balls are suspended by separate 0.23-m threads that are attached to a common point on the ceiling. Each ball has a mass of 8.70 10-4 kg. Initially the balls are uncharged and hang straight down. They are then given identical

    asked by teri on September 3, 2009
  26. Chemistry

    when heated, sulfuric acid will decompose into sulfur trioxide and water. Write a chemical equation, using words, to represent this chemical reaction. Identify reactants and products. (I'm having trouble identifying the reactants and products & writing the

    asked by Sam on September 6, 2015
  27. History

    Which of the following statements best summarizes Washington’s viewpoint on American foreign policy? (1 point) The United States can take advantage of Europe’s ambition. The United States should limit interaction with Europe to commerce, or trade.

    asked by . on October 31, 2017
  28. Earth science

    Kathleen made the diagram below to show how scientific knowledge changes over time. Which word or phrase best describes what scientists would do at the point indicated by the blank? Original data + new data =blank= modified data. Which would be the answer

    asked by Stephie on September 4, 2014
  29. social studies

    Which of the following statements best summarizes Washington’s viewpoint on American foreign policy? (1 point) The United States can take advantage of Europe’s ambition. The United States should limit interaction with Europe to commerce, or trade.

    asked by shadow on October 3, 2017
  30. english-PLEASE HELP

    i need help writing a thesis statement for an essay. the topic is this: use an example from romeo and juliet, write and essay analyzing Romeo's decision-making abilities at this point in the play. also, include a tough decision you have had to make and

    asked by amy on November 2, 2010
  31. Physics university

    In a tennis match, a player wins a point by hitting the ball sharply to the ground on the opponent's side of the net. If the ball bounces upward from the ground with a speed of 17 m/s , and is caught by a fan in the stands with a speed of 12 m/s , how high

    asked by Jessica on October 12, 2009
  32. Physics

    I solved part A but not part B: A batted baseball leaves the bat at an angle of 35.0 degrees above the horizontal and is caught by an outfielder 370 ft. from home plate at the same height from which it left the bat. Part A: What was the initial speed of

    asked by . on September 25, 2010
  33. algebra

    How do you solve this math problem? h= -8t^2+40t then it says: when t=0 and when t= 5 there are 2 questions that i have to answer: 1.) find the value of h 2.) graph this equation - i don't know if i did the problem right but when i answered #1 i got h=0, -

    asked by Rachel on May 21, 2010
  34. world history

    3. How did the Soviet Union respond to the normalization of relations between China and the United States? (1 point)Brezhnev invited Nixon to visit Moscow. Soviet companies set up a thriving trade with China. The Soviet Union cut off diplomatic relations

    asked by Ms. Simpsonizer on April 5, 2012
  35. math

    A plane is flying due east at 600 km/h at a constant altitude. From an observation point P on the ground, the plane is sighted on a bearing of 320◦. One minute later, the bearing of the plane is 75◦ and its angle of elevation is 25◦. Show that the

    asked by Connor on July 17, 2017
  36. child growth development

    Which of the following mothers has the greatest chance of birthing a baby with birth defects due to contracting rubella during preganancy? A. A woman who has the illness during the first month of preganancy B. A woman who contracts the disease during the

    asked by chris on June 9, 2010
  37. PHYSICS

    A closed circular wire hung on a nail in awall undergoes small oscillations 2 degree & the time period 2sec.Find (a) the radius of the circular wire (b)the speed of the particle farthest away from the point of suspension as it goes through the mean

    asked by CHIKIRSHU on December 25, 2009
  38. Math Max min problems

    The power P delivered to a load by a current of i amperes through a resistance of 19 ohms, when 110 volts are supplied at one end of the line, is given by the formula P = 110i - 19i2 . Determine the maximum power that can be delivered. maximum power in

    asked by Ashley on January 29, 2013
  39. chemistry

    Covalent bonds are formed when two atoms share electrons. The pairs of electrons which are shared between atoms and hence number of covalent bonds, can be represented by the number of lines drawn between the symbols for the atoms. For example, a single

    asked by trigger on December 30, 2008
  40. Physics

    A toboggan approaches a snowy hill moving at 11.1 m/s . The coefficients of static and kinetic friction between the snow and the toboggan are 0.410 and 0.280, respectively, and the hill slopes upward at 42.0 ∘ above the horizontal. A)Find the

    asked by Samantha on February 14, 2016
  41. physics

    Two cars leave the same point at the same time, each travelling at the same constant speed of 89.0 km/h and each having the same mass. However, the first car drives directly east, while the second car heads directly south. At what speed (the magnitude of

    asked by Anonymous on November 7, 2014
  42. physics

    A weather vane initially at rest has a moment of inertia of 0.119 kg · m2 about its axis of rotation. A 48.0 g piece of clay is thrown at the vane and sticks to it at a point 21.0 cm from the axis. The initial velocity of the clay is 23.0 m/s, directed

    asked by anthony on December 6, 2012
  43. physics

    A weather vane initially at rest has a moment of inertia of 0.119 kg · m2 about its axis of rotation. A 48.0 g piece of clay is thrown at the vane and sticks to it at a point 21.0 cm from the axis. The initial velocity of the clay is 23.0 m/s, directed

    asked by Anonymous on December 6, 2012
  44. physics

    Two cars leave the same point at the same time, each travelling at the same constant speed of 89.0 km/h and each having the same mass. However, the first car drives directly east, while the second car heads directly south. At what speed (the magnitude of

    asked by Anonymous on November 7, 2014
  45. physics

    Two cars leave the same point at the same time, each travelling at the same constant speed of 89.0 km/h and each having the same mass. However, the first car drives directly east, while the second car heads directly south. At what speed (the magnitude of

    asked by Anonymous on November 7, 2014
  46. PHYSICS

    A weather vane initially at rest has a moment of inertia of 0.115 kg · m2 about its axis of rotation. A 44.5 g piece of clay is thrown at the vane and sticks to it at a point 10.5 cm from the axis. The initial velocity of the clay is 18.5 m/s, directed

    asked by cindy on March 14, 2012
  47. physics

    Two cars leave the same point at the same time, each travelling at the same constant speed of 89.0 km/h and each having the same mass. However, the first car drives directly east, while the second car heads directly south. At what speed (the magnitude of

    asked by Anonymous on November 7, 2014
  48. engineering ecnonmics

    By installing some elaborate inspection equipment on its assembly line, the Robot Corp. can avoid hir- ing an extra worker who would have earned $36,000 a year in wages and an additional $9500 a year in employee benefits. The inspection equipment has a

    asked by Anonymous on September 30, 2014
  49. Pre-Algebra

    P.S - I really need help please help me with this, please i try and still i can not do this please!!!!!! :( :( :( :( :( The table below shows the percentage of households that own a microwave in different countries. Construct a stem-and-leaf plot of the

    asked by HI, I'M NEW HERE SO I NEED HELP CAN'T DO THIS ! :( on March 21, 2013
  50. Chemistry

    A student followed the procedure given in the lab exercise to determine the ascorbic acid content in a commercial vitamin C tablet. The students prepared the solution using a 0.460 g vitamin C tablet. The titration required 40.00 mL of the 0.005 M KIO3/KI

    asked by R on November 22, 2016
  51. physics

    A mass, m1 = 5.5 kg, is in equilibrium while connected to a light spring of constant k = 132 N/m that is fastened to a wall (see a). A second mass, m2 = 10.9 kg, is slowly pushed up against mass m1, compressing the spring by the amount Ai = 0.17 m (see b).

    asked by Anonymous on February 6, 2013
  52. physics im stuck

    Two identical small insulating balls are suspended by separate 0.27 m threads that are attached to a common point on the ceiling. Each ball has a mass of 6.20 10-4 kg. Initially the balls are uncharged and hang straight down. They are then given identical

    asked by physdummy on August 31, 2008
  53. English!!

    18. The author of “Hip­Hop Planet” uses the image of the candy box with a ribbon tied around it to describe the highways of Dayton, Ohio because (1 point) it shows how quickly hip­hop music commercialized. the character of Henry really likes candy.

    asked by Gina on December 13, 2016
  54. English

    Can you please tell me if I used the words correctly? Thank you. I have problems defining the words in point 3. 1) Do you use a box of detergent to wash clothes in the washing machine? 2) Do you use a dish-washing liquid to do the washing-up? 3) How would

    asked by Henry2 on December 20, 2011
  55. Calculus please help me

    f(x) = \frac{ x^3 }{ x^2 - 25 } defined on the interval [ -18, 18 ]. Enter points, such as inflection points in ascending order, i.e. smallest x values first. Enter intervals in ascending order also. The function f(x) has vertical asympototes at (? )and

    asked by Anonymous on November 4, 2014
  56. Microeconomics

    A monopoly firm is faced with the following demand function P = 26 – 0.5Q. The Marginal Cost function for the firm is given by 6 + 6Q and the total fixed cost is 4. Determine a) The profit maximizing output. b) The level of supernormal profit if any. c)

    asked by Job on July 21, 2014
  57. economics

    A monopoly firm is faced with the following demand function P = 13 – 0.5Q The Marginal Cost function for the firm is given by 3 + 4Q and the total fixed cost is 4 Determine 1. The the profit maximizing output 2.The level of supernormal profit if any 3.

    asked by catherine on June 21, 2014
  58. accounting

    using the break-even equations to solve for price and variable cost per unit andromeda company's break-even point is 2,400 units. variable cost per unit is $42; total costs are 67,200 per year. what price does andromeda charge?

    asked by jackie on October 25, 2013
  59. chemistry

    1) a 100ml smaple of 0.18M HCLO4 is titrated with 0.27M LiOH. determine the ph of the soution after the addition of 66.67 ml of LiOH (this is at equivalence point) 2)a 100 ml sample of .20M HF is titrated with .10M KOH. determine th ph of the soution

    asked by lia on March 8, 2011
  60. business math

    10. Simms Trucking Company received an invoice showing 20 tires at $99.00 each, 16 tires at $120.00 each, and 12 tires at $150.00 each. Shipping terms are FOB shipping point. Freight is $350.00; trade discount is 12/4; and a cash discount of 2/10, n30 is

    asked by marie on October 9, 2013
  61. Physics-Please check and I need help

    Please help set this up- A person goes into the electric field and has an object with a charge value of 4.2E-6C. At a distance of 10m from the object that's responsible for the elctric field, the person sees a force of 8.0N on the object they have. What is

    asked by Rachel Lynn C. on March 19, 2011
  62. Math

    Natalie performs a chemistry experiment where she records the temperature of an ongoing reaction. The solution is 93.5º C after 3 minutes; 90º C after 5 minutes, 84.8 C after 9 minutes; 70.2º C after 18 minute; 54.4º C after 30 minutes; 42.5ºC after

    asked by Brittany on May 1, 2013
  63. algebra 1

    Natalie performs a chemistry experiment where she records the temperature of an ongoing reaction. The solution is 93.5º C after 3 minutes; 90º C after 5 minutes, 84.8 C after 9 minutes; 70.2º C after 18 minute; 54.4º C after 30 minutes; 42.5ºC after

    asked by Brittany on May 1, 2013
  64. physics

    ou are the technical consultant for an action-adventure film in which a stunt calls for the hero to drop off a 18-m-tall building and land on the ground safely at a final vertical speed of 5 m/s. At the edge of the building's roof, there is a 100-kg drum

    asked by Hard to solve ..please help!!!! on April 3, 2011
  65. physics

    You are the technical consultant for an action-adventure film in which a stunt calls for the hero to drop off a 18-m-tall building and land on the ground safely at a final vertical speed of 5 m/s. At the edge of the building's roof, there is a 100-kg drum

    asked by Really stuck in this problem !! on March 26, 2011
  66. algebra

    1. On three consecutive passes, a football team gains 5 yards, loss 18, and gain 50 yards. What number represents the total net yardage? The total net yardage is 2. -4

    asked by Jimmy on April 26, 2010
  67. Statistic Please Check

    Check this out please Thanks Lesson 3 Unit 2 Probability Couplements, Disjoint Events and the addition Rule 1.M&M candies are great for probability. The following tables are the color distributions for the candies. Fill in each table with the missing

    asked by bowershe on March 11, 2014
  68. Accounting

    Sierra Company is considering a long-term investment project called ZIP. ZIP will require an investment of $121,200. It will have a useful life of 4 years and no salvage value. Annual revenues would increase by $79,180, and annual expenses (excluding

    asked by Francesca on July 15, 2012
  69. Math

    Please help guys ❤ 1) What is the GCF of 32 and 56? A) 2 B) 4 C) 8 D) 14 2) The highest temperature ever recorded in Death Valley, California, was 121°, while the lowest ever recorded there was 13° below zero. Which integers BEST represent these

    asked by Iris on November 10, 2018
  70. Physics ~really need help!~

    1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A cart of mass 1 kg moving at a speed of 0.5 m/s collides elastically with a cart of mass kg at

    asked by Isis on February 25, 2013
  71. PHYSICS

    1. What is the weight of a 2.88 kg snake? 2. A girl drops a rock straight down from a bridge. Assume negligible air resistance. How fast is it going 4.0 s later? 3. A rock with a mass of 22.45 kg is falling from a tall tower. a. What is the Net Force if

    asked by Hayden on December 21, 2012
  72. FIN

    Question 2 Archer Daniels Midland Company is considering buying a new farm that it plans to operate for 10 years. The farm will require an initial investment of $12.00 million. This investment will consist of $2.00 million for land and $10.00 million for

    asked by Parris on September 16, 2013
  73. Leadership & Ethics in Healthcare

    You will demonstrate your ability to apply ethics to your future career in a healthcare setting by creating a one-page statement of your professional code of ethics. This statement should clearly identify your “ethical bottom line.” Be sure that your

    asked by Anonymous on December 11, 2012
  74. macroeconomics

    Please note that we don't do students' homework for them. Once YOU have come up with a response to YOUR questions, please re-post and let us know what you think. Then someone here will be happy to critique your work. =) Use the circular flow diagram to

    asked by Writeacher on March 1, 2007
  75. Math Ms. Sue please

    7. Which of the following types of information is NOT suited for display on a scatter plot? (1 point) relationship between age and number of books read in a year relationship between height and shoe size relationship between calories consumed and body

    asked by Delilah on March 22, 2013
  76. Math

    A triangle has vertices X(0,0), Y(4,4), and Z (8,-4). a) Write an equation for each of the three medians b) Recall that the centroid of a triangle is the point of intersection of the medians of the triangle. Use the equations from part a) to verify that

    asked by Luisa on October 12, 2007
  77. chemistry

    1)If 746.4 g of a substance is dissolved in 1723 g of benzene solvent, the freezing point of the solution is -9.19 oC. Calculate the apparent molar mass (g/mol) of substance. 2) What mass ( g ) of the solvent water should be mixed with 0.008595 L of the

    asked by bubble on January 20, 2010
  78. Physics

    What are the strength and direction of the electric field at the position indicated by the dot in the diagram below, in which d = 4.9 cm, q = 11 nC, the positive x-axis points to the right, and the positive y-axis points up? Give your answer in each of the

    asked by help! on February 28, 2012
  79. Physics URGENT!!!

    A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 59 dB by an observer 14 km away. (a) What (b) What intensity level of the horns sound is observed by someone waiting at an intersection 46 m from the train?

    asked by Tia on December 4, 2012
  80. Physics - Projectile Motion

    A ball rolls horizontally off the edge of a tabletop that is 1.60 m high. It strikes the floor at a point 1.58 m horizontally away from the table edge. (Neglect air resistance.) (a) How long was the ball in the air? ___ s (b) What was its speed at the

    asked by TechnoBoi11 on February 1, 2007
  81. Physics URGENT!!!

    A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 59 dB by an observer 14 km away. (a) What is the average power generated by the horn? (b) What intensity level of the horns sound is observed by someone

    asked by Anonymous on December 6, 2012
  82. statistics

    Can someone guide me on how to solve this problem: A sample of 52 night students ages is obtained in order to estimate the mean age of night school students. sample mean = 25.9 years. the population variance is 23. Give a point estimate for the mean. Find

    asked by concy on January 21, 2012
  83. Math

    A uniform rod, AB 2 meters long has a mass of 10 kg and rests with its end A on a rough horizontal ground with coefficient of friction 0.6. The rod is is inclined at 30 degrees to the horizontal and is supported on a rough pin at point C, 1.5 meters from A

    asked by Ceasar on December 27, 2014
  84. economics

    (Insurance) Let X = R+. Consider a house owner whose house has a risk of burning down with probability 0.001. If the house burns down it is worth $0 otherwise it is worth $1 million. The owner of the house is an expected utility maximizer with a vNM

    asked by Kevin on February 15, 2007
  85. READING

    30-day Money Back Guarantee Our Groom Co. electric shavers come with a 30-day money back guarantee because we are focused on ensuring your satisfaction. The only stipulation is that you use your new shaver exclusively for 2 weeks to become accustomed with

    asked by ERA22 on November 2, 2013
  86. reading

    30-day Money Back Guarantee Our Groom Co. electric shavers come with a 30-day money back guarantee because we are focused on ensuring your satisfaction. The only stipulation is that you use your new shaver exclusively for 2 weeks to become accustomed with

    asked by era22 on June 13, 2013
  87. language arts

    30-day Money Back Guarantee Our Groom Co. electric shavers come with a 30-day money back guarantee because we are focused on ensuring your satisfaction. The only stipulation is that you use your new shaver exclusively for 2 weeks to become accustomed with

    asked by ERA 22 on May 23, 2015
  88. Business Communication

    Indicate the alternative that both correctly evaluates the following sentence and correctly explains the reason for the evaluation. “As soon as you provide your date of birth on Line 2, your application for a flexible spending account will be

    asked by Hanna on February 24, 2011
  89. annual salary

    What is the formula to determine someone's annual salary given only the hourly wage? For example, if someone works full time for $20 per hour, how much does he earn in a year? A friend of mine told me the formula before; it's really simple. I just forgot

    asked by Leo on June 13, 2006
  90. Chemistry

    help - confusion :( The oxidation of copper(I) oxide, Cu2O(s), to copper(II) oxide, CuO(s), is an exothermic process, 2 Cu2O + O2 --> 4CuO The change in enthalpy upon reaction of 75.30 g of Cu2O(s) is -76.83 kJ. Calculate the work, w, and energy change,

    asked by DC on November 3, 2013
  91. physics (Urgent)!!!!!!!!!!!!!!!!!!!!!!

    A gyroscope consists of a uniform disc of mass radius M= 1 kg and radius R= 0.3 m . The disc spins with an angular speed ω= 300 rad⋅s-1 as shown in the figure below. The gyroscope precesses, with its axle at an angle 30∘ below the horizontal. The

    asked by Anonimus on November 20, 2013
  92. college mathematics

    Given the argument and its Euler diagram below, determine whether the syllogism is valid or in valid. All painters use brushes. Some people who use brushes are teachers. Some painters are teachers. (The second sentence is suppose to have a line underneath

    asked by cody on February 5, 2012
  93. Math

    The park had initially planned to charge $8 for admission and expected to have 2400 visitors a day. Allison and Juan were assigned the task of analyzing the park's admission revenues. 1.a)How much revenue would the park have for one day at the current

    asked by Josh on July 28, 2016
  94. Physics

    Three particles have identical masses and identical inital velocities. These particles are projected one at a time into a region in which there is a uniform magnetic field B perpendicular to their velocities. If two of the particles are deflected in

    asked by Andrea on April 21, 2008
  95. Calculus

    Can you please check to see if these answers are correct? I have provided my work as well! That you! This is much appreciated!! 1. What is the volume of the solid that is generated by revolving the region bounded by the curves x = 3y^2-2 and x = y^2 and y

    asked by Daisy on January 23, 2017
  96. Grammar and Composition

    Paragraph 3 (second point of your thesis)

    asked by y912f on October 22, 2009
  97. Math

    You use a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your data set is -0.015. How confident can you be that your predicted value will be reasonably close to the actual value? My guess is

    asked by Scarlet on March 22, 2016
  98. physics-- deflection

    hello, again the problem is... I don't know what to measure/look for if we want to calculate deflection. From doing this project, we are to define what deflection is. As I understand your problem, you are putting a force on a horizontal cantilever. Measure

    asked by Jan on December 2, 2006
  99. chemistry

    ionic componuds tend to have higher boiling points than covalent compounds . both ammonia NH3 and methane CH4 are covalent compounds but yet the boiling point of ammonia 130C is higher than methane. what might account for this difference please help thank

    asked by teri on April 1, 2009
  100. trigonometry

    a surveyor 1standing on a highway observed the angle of elevation of the airplain as 22.5°. at the same time, a surveyor 2 observed the angle of elevation of the same airplane to be 30°. if the airplane was 850m directly above a point on the highway,

    asked by betty on January 12, 2015

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