Questions Asked on
July 29, 2013

  1. math

    If shipping charges to certain point 62 cents for the first five ounces and 8 cents for each additional ounce, the weight of a package, in pounds, for which the charges are $1.66 is not just an answer please A.7/8 B.1 C.1 1/8 D.1 1/4 E.1 1/2

    asked by vincent
  2. statistics

    The length of country and western songs is normally distributed and has a mean of 200 seconds and a standard deviation of 30 seconds. Find the probability that a random selection of 9 songs will have mean length of 186.30 seconds or less. Assume the

    asked by Anonymous
  3. chemistry

    The density of a 60% (m/m) ethanol solution 0.8937g/ml , calculate the molarity of the solution , step by step . Molar mass of ethanol = 46.07

    asked by kaksha
  4. physics

    During a hard sneeze, your eyes will shut for 0.5 s. If you are driving a car at 90 km/h during such a sneeze, how far does the car move during that time?

    asked by biiiiiillly
  5. math

    In a 3 hour examination of 350 questions, there are 50 mathematics problems. If twice as much time should be allowed for each problem as for each of the other questions, how many minutes should be spent on the mathematical problems? not just and answer

    asked by vincent
  6. math

    One wheel has a diameter of 30 inches and a second wheel has a diameter of 20 inches. The first wheel traveled a certain distance in 240 revolutions. In how many revolutions did the second wheel travel the same distance? not just an answer please A.120

    asked by vincent
  7. Chemistry help

    2.00g of NaOH are dissolved in water to make 2.00L of solution. What is the concentration of hydronium ions, [H3O+], in this solution?

    asked by Anonymous
  8. physics

    A 5-kg block of ice is at a temperature of -27 °C. How much heat must be added to the ice to produce 5 kg of liquid water with a final temperature of 35 oC?

    asked by franko
  9. bussiness math

    Angela Hatcher is planting flower bulbs in her garden for this coming summer. She intends to plant 1 bulb for every 5 square inches of flower bed. How many flower bulbs will she need for an area measuring 230 square inches? (Points : 2)

    asked by everest
  10. physics

    An SUV with a mass of 1.80×103 kg is travelling eastbound with a speed of +15.0 m/s, while a compact car with a mass of 9.00×102 kg is travelling westbound at -15.0 m/s. The vehicles collide head-on and stick together. What is the speed of the wreck

    asked by cindy
  11. physics

    Suppose you are stopped for a traffic light, and a fast ambulance approaches you from behind with a speed of 34.0 m/s. The siren on the ambulance produces sound with a frequency of 960 Hz. The speed of sound in air is 343 m/s. What is the wavelength of the

    asked by eddy
  12. physics

    A 2.0-m-tall basketball player is standing on the floor a distance d from the basket, as shown in the figure below. He shoots the ball at an angle of 40.0o above the horizontal with a speed of 10.67 m/s and makes the shot. The height of the basket is 3.05

    asked by kiki
  13. physics

    A rocket is used to place a satellite in orbit about a planet. The velocity of the satellite is 534 m/s and the radius of orbit is 1.21×108 m. What is the mass of planet?

    asked by brian
  14. physics

    Socola and Brooke are balanced on a teeter-totter plank as shown below. Socola has a mass of 7.7 kg, and Brooke’s mass is 53 kg. Brooke is located 1.0 m from the pivot. Assume the plank is massless, and calculate how far Socola is from the pivot (x).

    asked by buddy
  15. QMB2100

    Chicken Delight claims that 90 percent of its orders are delivered within 10 minutes of the time the order is placed. A sample of 70 orders revealed that 60 were delivered within the promised time. At the .02 significance level, can we conclude that less

    asked by Ariel
  16. physics

    What is the absolute pressure at the bottom of a storage tank of oil 18-m deep that is open to the atmosphere? Take the density of oil to be 800 kg/m3.

    asked by timmy
  17. Math

    A corporation has 7 members on its board of directors. How many different ways can it elect a president, vice president,secretary, and treasurer?

    asked by Erin
  18. math

    thirty animals are to be used in a medical experiment on diet deficiency: 3 male and 7 female rhesus monkeys, 6 male and 8 female dogs. If one animal is selected at random, what is the probability of getting a chimpanzee or a dog?

    asked by Ted
  19. physics

    If the input piston of a hydraulic jack has a radius of 0.005 m, what force is necessary to apply to it to lift a 1500-kg car on the output piston whose radius is 0.5 m?

    asked by deven
  20. physics

    A cube of balsa wood (side length = 0.25 m) is tied with a string to the bottom of a waterfilled container. The wood is completely immersed. What is the tension in the string?

    asked by samuel
  21. nutrition

    Which of the following diets provides approximately 18% of the total Calories (kcal) from fat?

    asked by Norma
  22. English

    What are the stories that go with each of the tools that Sanders discusses in his essay "Inheritance of Tools?" I don't really understand what the question wants, so I started by saying the history of the hammer. What can I write about the other tools?!

    asked by Anon
  23. physics

    The angular speed of the rotor in a centrifuge decreases from 226 to 186.0 rev/s with an angular deceleration of 6.4 rev/s2. During this period, how many revolutions does the rotor turn?

    asked by mike
  24. physical science

    During the stage of internal combustion engine operation in which the piston rises and compresses the fuel in the combustion chamber,

    asked by Anonymous
  25. physics

    A projectile is launched over level ground at a launch angle of 70o with an initial velocity vo. At some later time while the projectile is on its way to the peak in its trajectory, its velocity vector makes an angle of 50o with respect to the horizontal.

    asked by billo
  26. Calculus--Steve plz?

    Find the inverse Laplace transform of the function: F(s)=1/(s(s+1)(s+2)) ...A special thank you to Steve who has already been a tremendous help! Thank you so much =)

    asked by Elyse
  27. Physics

    A wire is bent into the shape of an planar Archimedean spiral which in polar coordinates is described by the equation r=bθ. The spiral has N=100 turns and outer radius R=10 cm (R is the distance from point O to point T). Note that in the figure below we

    asked by Steven
  28. physics

    A U.S quarter is rolling on the floor without slipping in such a way that it describes a circular path of radius R=4 cm. The plane of the coin is tilted at an angle of θ=45∘ with respect to the horizontal plane. Find the coin's period T in seconds, that

    asked by Anonymous
  29. chem!!!!!!

    How many atoms of each type are represented in each of the following? f. 5Fe(No3)2 g. 4Mg3(PO4)2 h. 2(NH4)2SO4

    asked by victoria
  30. physics

    An LSU football defender is 6 m behind a Georgia Tech receiver who has the football and is d meters from making a touchdown. If the LSU player is running at 5 m/s and the receiver is running at 4 m/s, what is the furthest distance, d, that the Tech player

    asked by simonnnnnnnuuuu
  31. physics

    Two golf balls are thrown with the same speed off the top of a large bridge at the same time. Ball A is thrown straight downward, and Ball B is thrown horizontally off the bridge. Which ball hits the ground first?

    asked by cammi
  32. physics

    A 100-N mass on a horizontal table is connected to a 50.0-N hanging mass over a frictionless pulley. The two masses are moving at constant speed. What is the value of the coefficient of kinetic friction between the table and the horizontal mass?

    asked by smatha
  33. children growing up

    language development is initially triggered a.socially b.pschologically c.biologically d.by parental contact my answer is d

    asked by susue
  34. Math- Probability

    A committee of five people is to be formed from six lawyers and seven teachers. Find the probability that none are lawyers.

    asked by Ted
  35. Geometry

    he chart below shows the names of all the tools that Valerie used to construct an acute angle. Tools used 1) Paper 2) Pencil 3) Compass Which statement best explains why Valerie’s construction may be inaccurate?

    asked by D'Angelo
  36. Probability

    There is a woman that has a 40% chance of being in Casper recently, a 30% chance of being in Denver and a 27% chance that she has been to both. Find the probablility that she has been to Casper if she has been to Denver.

    asked by Lucy
  37. Probability

    thirty animals are to be used in a medical experiment on diet deficiency: 3 male and 7 female rhesus monkeys, 6 male and 8 female dogs. If one animal is selected at random, what is the probability of getting a chimpanzee or a dog?

    asked by Lucy
  38. algebra

    2.1(-1.2x+2.3y-1.1)

    asked by JA
  39. child psychology in general

    which one of the following theories ask if children are self motivated or prodded? a.formal b.development c.informal d.learning my answer is b

    asked by susue
  40. child psychology in general

    child development can most aptly be described as? a.linear b.like a pyramid c.like an inverted pyramid d.cyclical my answer is c

    asked by susue
  41. math

    find the three cuberoots of 8( cos 264 + jsin 264) and state which is the principal cuberoot. Show all three roots on an argand diagram.

    asked by stella
  42. Math- Probablility

    There is a woman that has a 40% chance of being in Casper recently, a 30% chance of being in Denver and a 27% chance that she has been to both. Find the probablility that she has been to Casper if she has been to Denver.

    asked by Lucy
  43. math

    If you invest $1000 today in a savings account that pays 3% annually what will be the Future Value of this amount in 10 years

    asked by Denise
  44. English

    The $181 million IRIS mission (How do you read the expression above?) 1. The one hundred eighty-one dollar IRIS mission 2. The one hundred eighty-one dollars IRIS mission 3. The one hundred eighty-one dollar ai ar ai es mission 4. The one hundred

    asked by rfvv
  45. BUSN

    Can you reconcile the little things with the trends in customer relations? To help get started, identify and discuss several 'little things' and trends in customer relations.

    asked by Tammy
  46. physics

    A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius 11.0 m. A passenger feels the seat of the car pushing upward on her with a force equal to three times her weight at the bottom of the dip. What is her speed as

    asked by andrew
  47. physics

    Using a small pendulum of length 0.171 m, a geophysicist observes that it completes 1 cycle every 0.833 s. What is the value of g at his location?

    asked by cat
  48. physics

    A string of length 10.0 m is tied between two posts and plucked. This sends a wave down the string moving at a speed of 130 m/s with a frequency of 215 Hz. How many complete wavelengths of this wave will fit on the string?

    asked by simmy
  49. physics

    The loudest sound in Earth’s history is believed to be the explosion of the volcanic island of Krakatoa, back in 1883. Physicists estimate that the intensity of the sound produced was 1.0×107 W/m2. How many decibels does this correspond to?

    asked by neven
  50. physics

    A 1.0-m thin rod of aluminum is laid end-to-end with a 1.0-m thin rod of steel. The rods are initially at 25 oC. What is the total length of both rods when heated to 450 oC?

    asked by catherine
  51. johnny

    A projectile is launched over level ground at a launch angle of 70o with an initial velocity vo. At some later time while the projectile is on its way to the peak in its trajectory, its velocity vector makes an angle of 50o with respect to the horizontal.

    asked by franko
  52. English

    Which of the following sentences contains a verb in the simple past tense? A. I was working overtime for about six months. B. She would like to join us. C. Jenna has driven this route multiple times. D. We helped Joan to pack her things.

    asked by Bae
  53. Marketing

    A supermarket like woolworth will fall under which marketing segmentation? A. Demographic B.Psychographic C.Geographic

    asked by Angela
  54. Calculus

    This integral does not converge using the normal (Leibniz) definition of integration. Using the identity: int(0-->inf)f(t)/(t)dt = int(0-->inf)F(p)dp, find: integral(0-->inf)(cos(at)+cos(bt))/t dt

    asked by Dave
  55. chemistry

    A 15.0L sample of argon has a pressure of 28.0 atm . What volume would this gas occupy at 9.90 atm? Assume ideal behavior.

    asked by rena
  56. chemiatry

    What is room temperature?

    asked by waison
  57. finance mang

    if there is $48,000 in earnings available to common stock holders and the firm’s stock has a P/E of 20 times earnings per share, what is the current price of the stock?

    asked by kk
  58. General Chemistry

    Calculate the pH and include the balanced equation for the acid dissociation reaction. 0.20 M HC3H5O2 (propionic acid, Ka = 1.3 x 10^-5)

    asked by <3
  59. physics

    Our muscles atrophy when there is no gravitational force. On long space flights this is a problem, which is why astronauts exercise. On very long space flights it might be advisable to simulate gravity. Your space ship is a long cylinder of radius 100 m

    asked by Steven
  60. physics

    motion that has no acceleration 13 letters only

    asked by kenneth
  61. physics

    A rugby player kicks a ball from a ground aiming to get the ball over rhe horizontal bar and betwween the vertical posts. the ball is 50 m away from goal line, directly infront of a goal, and the initial speed of the ball is 25 m/s. The horizontal bar is

    asked by Xolile
  62. help math

    Alex wants to cover a 30 by 30 board perfectly with 450 1 by 2 dominos. He also wants to ensure that he can trace a path between any 2 dominos that connect through at most N dominos. What is the minimum possible value of N which would allow Alex to form

    asked by Steve
  63. Calculus-Series

    Sigma with n=1 to n= positive infinity (x^3)* (e^(-x^4)) Does it converge or diverge and use the integral test to show how. I got that it diverges, but this isn't correct. Can someone please explain? Thanks.

    asked by Lisa
  64. Chemistry

    If a 0.875 gnsample of barium chloride is dissolved in water and then treated with a sodium sulfate solution, how many grams of barium sulfate precipitate should be collected?

    asked by Colby
  65. Chemistry

    The tin (II) fluoride in a 10.000 g sample of toothpaste is extracted into solution and them a precipitate of lanthanum (II) fluoride (LaF3) is formed by the addition of a lanthanum (III) nitrate solution. If the mass of the lanthanum (III) fluoride

    asked by Colby
  66. Grammar

    Do you use "how much" for uncountable nouns and "how many" for countable nouns? Please give me examples.

    asked by Anonymous
  67. Scholarships

    Please post links that contain valid scholarships for this summer. Thank you in advance.

    asked by Anonymous
  68. chemistry

    How many moles of compound are in 30.2 g of Na2CO3·10H2O?

    asked by Bstal
  69. math

    Two players play a game on the Cartesian plane. The game starts by placing a token at a lattice point in the first quadrant. The players alternate turns, with player one going first. On her turn, player 1 can move the token 2 units to the left or 1 unit

    asked by Anonymous
  70. math

    A queen on an English chessboard is able to attack in the same row, column and diagonal. The probability that 2 randomly placed queens on an 8 by 8 chessboard will be able to attack each other can be expressed as ab, where a and b are positive, coprime

    asked by Anonymous
  71. dynamics

    a ball of mass 8 kg is thrown vertically upward from the ground, with an initially velocity of 25 m/s. Determine the maximum height to which it will travel if atmospheric resistance is neglected

    asked by ripon
  72. Math Statistics

    5. Students in an introductory statistics class were asked to report the age of their mothers when they were born. Summary statistics include Sample size: 36 students Sample mean: 29.643 years Sample standard deviation: 4.564 years a. Calculate the

    asked by James
  73. physics

    A diver springs vertically upward with an initial speed of 1.7 m/s from a diving board that is 3.2 m above the water. Find the speed with which she enters the water, assuming completely vertical motion.

    asked by sammi
  74. math

    The drama club has 41 members. There are 9 more girls than boys. How many girls are in the club?

    asked by zeke
  75. math

    draw ABC, with A=35, AC=6cm and C=65

    asked by mnce
  76. Scholarships

    Please post links for high school scholarships.

    asked by Anonymous
  77. home economics

    is south african government providing enough welfare or subsidy to the poor and underprivilaged?

    asked by Anonymous
  78. physics

    as i have known that centripetal force is directly proportional to the angular speed square. so, what is the relationship between angular speed and centripetal force ? when centripetal force increase, does angular speed increase too? i need more

    asked by kate
  79. Statistics

    A researcher surveyed college students to study their opinion about the proposed change in smoking rules. The researcher asked a group of 30 students: 12 of them supported the change, 13 of them did not, and 5 had no opinion. This is not a binomial model

    asked by Will
  80. economics

    is african government provide enough welfare?

    asked by alucia
  81. American Government

    Lock's use of the term "property"

    asked by Lisa
  82. Finance

    I can't seem to figure this problem out: You make $4,800 annual deposits into a retirement account that pays 10.5 percent interest compounded monthly. Required: How large will your account balance be in 30 years? I feel like I'm really close, though. Here

    asked by Alex
  83. biology

    Do all enzymes function within the different temperature range, like they do with pH?

    asked by kate
  84. Statistics

    Multiple Choice: A die is rolled 600 times. The face with six spots appears 112 times. Is the die biased towards that face, or is this just chance variation? Answer the question in the steps outlined in Problems 1-6. 1) The null hypothesis is: a) The die

    asked by Stat
  85. Statistics

    Multiple Choice: A die is rolled 600 times. The face with six spots appears 112 times. Is the die biased towards that face, or is this just chance variation? Answer the question in the steps outlined in Problems 1-6. 2) The alternative hypothesis is a) The

    asked by Stat
  86. Math

    The average of a set of 7consecutivr positive intergers is 15. What is the sum of the three smallest numbers in that set? A) 38 B) 39 C) 42 D) 48 E) 51

    asked by Jenny
  87. help with chemistry please

    Can someone please explain how to do this An equilibrium mixture at 225∘C contains 8.0×10−2M NH3 and 0.20M H2 for the reaction 3H2(g)+N2(g)←→2NH3(g) If the Kc at this temperature is 1.7×102, what is the equilibrium concentration of N2?

    asked by Anonymous
  88. Statistics

    Multiple Choice: A die is rolled 600 times. The face with six spots appears 112 times. Is the die biased towards that face, or is this just chance variation? Answer the question in the steps outlined in Problems 1-6. 3) If the null hypothesis were true,

    asked by Stat
  89. Math- averages

    Caitlyn sold 7cars per week for the first three weeks, but in week four she sold 11 cars. What is her average number of sales per week in her first four week on the job? A) 7 B) 8 C) 9 D) 11 E) 12 Please explain! Thanks!

    asked by Jenny
  90. Statistics

    True or False Question: A die is rolled 600 times. The face with six spots appears 112 times. Is the die biased towards that face, or is this just chance variation? Answer the question in Problem 6. 6) “The test concludes that the die is biased towards

    asked by Stat
  91. Stats

    There are two boxes, each with several million tickets marked “1” or “0”. The two boxes have the same number of tickets, but in one of the boxes, 49% of the tickets are marked “1” and in the other box 50.5% of the tickets are marked “1”.

    asked by Help please!!!
  92. Stats

    A student hands each of 300 classmates 2 chocolates side by side on a plate. Of the 300 students, 171 choose the chocolate that¢s on their right hand side, and the remaining 129 choose the chocolate that¢s on their left. The student says, “That¢s just

    asked by Help please!!!
  93. Physics - Magnetism

    The direction of magnetic lines of force change if an iron piece is placed in its field. Why?

    asked by silent_klr
  94. hs math

    what is the break up of principal and interest in a payment of 249.73 at 3.599 with a term of 72 months?

    asked by jim
  95. MAROECONOMICS

    Question 9 of 20 5.0 Points Investment includes the purchase of: A. stock options of Enron. B. software by an accounting firm. C. global positioning units for cruise missiles by the government. D. new chalk by a local school board.

    asked by tg
  96. children growing up

    according to your study unit when discussing language development, performance refers to? a.understanding b.expression c.syntax d.grammar my answer is a

    asked by susue
  97. language

    Write these words in alphabetical order. Alphabetize them to the second letter. grim, blot, sum, build, shelf

    asked by ty
  98. children graowing up

    the final stage in an acute distress reaction prompted by separation is often ? a.dispair b.detachment c.resentment d.protest my answer is b

    asked by susue
  99. children growing up

    a famous quotation on child development attributed to the Jesuits most emphasizes the importance of? a.early childhood experiences b.adult supervision c.religious indoctrination d.role models my answer is a

    asked by susue
  100. children growing up

    the developmentall stage labelled intitiative and guilt refers to? a.parallel play b.introspective development c.peer relationships d.parental modelling my answer isd

    asked by susue
  101. math

    There is a woman that has a 40% chance of being in Casper recently, a 30% chance of being in Denver and a 27% chance that she has been to both. Find the probablility that she has been to Casper or Denver recently.

    asked by Ted
  102. math

    There is a woman that has a 40% chance of being in Casper recently, a 30% chance of being in Denver and a 27% chance that she has been to both. Find the probablility that she has been to Casper if she has been to Denver.

    asked by Ted
  103. Probability

    How many different committees can be formed from 5 professors, and 15 students. If each committee is made up of 2 professors, and 10 students.

    asked by Chuck