Questions Asked on
May 18, 2012

  1. physics

    An airplane with a mass of 1.2 x 10^4 kg tows a glider with a mass of .60 x 10^4 kg. If the airplane propellers provide a net forward thrust of 3.6 x10^4 N, what is the acceleration of the glider?

    asked by Anonymous
  2. chemistryy

    The reaction between 34.0 g of NH3 and excess oxygen gas produces 45.9 g of NO gas and some water. Determine the percent yield.

    asked by bri
  3. Chemistry

    The pH of a solution is 1. Which of the following statements are also true for the solution? (Select all that apply.) It will change the color of red litmus to blue. The concentration of hydronium ion is equal to the concentration of hydroxide ion. The

    asked by Cody
  4. database management

    2. Given the following business scenario, create a Crow’s Foot ERD using a specialization hierarchy if appropriate. Tiny Hospital keeps information on patients and hospital rooms. The system assigns each patient a patient ID number. In addition, the

    asked by Maureen
  5. ENGLISH 11

    Identify which of the following events was NOT a major influence of the Modernist writers. *Great Depression *World War I *World War II (i thought it would be the Harlem renaissance but its not a answer choice.)

    asked by Anonymous
  6. math

    the division of a whole number N by 13 gives a quotient of 15 and a remainder of 2. Find N.

    asked by alandra
  7. Science

    Ethene gas (C2Ha) reacts with oxygen to form carbon monoxide and water. Write a balanced equation for this reaction, then find the mole ratios of substances on each side of the equation.

    asked by Latice
  8. chemistryy

    The reaction between 34.0 g of NH3 and excess oxygen gas produces 45.9 g of NO gas and some water. Determine the percent yield.

    asked by bri
  9. physics

    An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. If a 19.2-V potential difference is applied to these plates, calculate the following: (a) the electric field between the plates,

    asked by andrew
  10. c++

    Write a program that asks the user to input a grade that he or she received on an exam. The grade is an integer from 0 to 100 inclusive. The program should convert the numeric grade into the equivalent letter grade. Do the conversion by using a function

    asked by jermaine
  11. AlgebraB

    I have somemultiple choice questions that I need help with. Question 1 Find the measure of

    asked by Anna64
  12. Math

    If a family has 4 children, in how many ways could the parents have 2 boys and 2 girls as children?

    asked by KeKe
  13. Chemistry

    in a blast furnace, iron(III) oxide is used to produce iron by the following (unbalanced) reaction: Fe2O3 + CO = Fe + CO2 a. if 4 kg Fe2O3 are available to react, how many moles of CO are needed?

    asked by RS
  14. Physics!!!!

    A 78 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.4m/s. v=7.7m/s If the trampoline behaves like a spring of spring constant 5.6×104 N/m , how far does he depress it?

    asked by Daisy
  15. ALGEBRA

    Find the APR for the following loan (monthly payments). (Round your answer to the nearest full percent.) Purchase a refrigerator for $2,100 at 20% add-on interest for 3 years.

    asked by Monic
  16. chemistry

    A 150-mL sample of a .600-mol/L calcium nitrate solution is mixed with a 1.00L of .500-mol/L NaOH(aq). Calculate the mass of precipitate produced in this reacton.

    asked by Lizzy
  17. Statistics

    Which of the following statements best describes the uncertainty associated with a 95% confidence interval for a population proportion, computed from a simple random sample? A. We don't know whether the particular confidence interval is successful or not,

    asked by Mary
  18. Math

    A bag contains 4 green marbles, 6 red marbles, and 2 white marbles. Three marbles are drawn at random with replacement. With replacement means that after a marble is drawn, it is replaced before the next one is drawn. Find the probability of all three

    asked by Junior
  19. World History

    Important major achievements of the sumerians civilization? Anyone Could Help Me Please

    asked by Mary Jane
  20. algebra

    The product of the page numbers on two facing pages of a book is 110. Find the page numbers. the page numbers are:

    asked by rr
  21. English

    "I have but one lamp by which my feet are guided; and that is the lamp of experience." This is an example of a. an appeal to authority b. allusion c. conceit d. logic C? Thanks

    asked by mysterychicken
  22. chemistry

    KMnO4 + H2SO4 + KNO2---> MnO2 + KNO3 + K2SO4 + H2O

    asked by ashia4
  23. English

    Which technique of speeches does Franklin use in this passage? From such an assembly can a perfect production be expected? A. restatement B. repetition C. rhetorical question D. parallelism

    asked by Anonymous
  24. math

    The base of a triangle is 5cm greater than the height. The area is 52cm^2. Find the height and length of the base.

    asked by Frank
  25. Physics

    What is the velocity at the midway point of a ball able to reach a height y when thrown with an initial velocity v0? (Assume the ball is thrown upward and that up is the positive direction. Use the following as necessary: y and g. ) Someone posted this

    asked by James
  26. Statistics

    From random sample of 200 college students, 40 students indicated that they smoke cigarettes. Use the information from the sample to calculate a 95% confidence interval for the population proportion of college students that smoke cigarettes (round to

    asked by Mary
  27. Physics

    A bullet is fired through a board 12.1 cm thick, with a line of motion perpendicular to the face of the board. If the bullet enters with a speed of 375 m/s and emerges with a speed of 205 m/s, what is its acceleration as it passes through the board? (Take

    asked by James
  28. Physics

    An electric drill operates at a potential difference of 120V and draws a current of 1.5 Amps. If it takes 50 seconds to drill a hole in a piece of steel,calculate the amount of electrical energy used by the drill in that time.

    asked by Don
  29. Physics

    An electric immersion heater is rated 5 A when connected to a 120V circuit. What is the resistance of the heater? If it takes 168 KJ to heat 500 ml of water from 20 deg C to boiling, how long does it take to heat the water?

    asked by Don
  30. physics

    1.)A radio station transmits waves of length 400m.if the speed of the waves is 3*10power8m/sec,find the frequency of the radio station. 2.)Audible range of frequencies is between 20Hz and 20KHz.Find the range of the wavelengths corresponding to these

    asked by srikar
  31. CHEMISTRY

    Consider the following cell: Pt|H2(g, 0.130 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 0.90 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V, calculate the hydrogen ion

    asked by Jematormal91
  32. economics

    How can I determine if two goods are in the same market or market segment? I am not sure how to determine if they have the same demand curve. For example I need to determine if a movie rented from Redbox is or is not in the same market as a movie seen at a

    asked by DM
  33. language arts

    I need to do an essay in a language arts package titled noggin. I lost the essay part of it. I'm not asking for you to do an essay for me, but if you could put up the page so I know how to make the Picture look that the essay goes in. I need to have it in

    asked by Michael
  34. Math

    Question 2 For the function f(x) = 3x2-2x-7, find f(2). Answer f(2) = 13 f(2) = 25 f(2) = 1 f(2) = 1/2 3 points Question 3 One day you work 3 hours and your boss gives you $22. Another day after working 4 hours your boss gives you $33. Yesterday after

    asked by adam
  35. ALGEBRA

    If $695 is invested in an account that earns 21.75%, compounded annually, what will the account balance be after 15 years? (Round your answer to the nearest c

    asked by Monic
  36. Statistics

    A researcher found a sample proportion of 0.94 for estimating the population proportion of freshmen at a university who had Facebook accounts. If the standard deviation of the sampling distribution of the sampling proportion is 0.02, what is a 95%

    asked by Mary
  37. algebra 2

    You and your friend are both knitting scarves for charity. You knit 8 rows each minute and already have knitted 10 rows.Your friend knits 5 rows each minute and has already knitted 19 rows. When will you both have knitted the same number of rows?

    asked by tay
  38. Math

    The circumference of the front tire is 6ft. How many complete turns does the front wheel make in 30 ft driveway?

    asked by Hannah
  39. english

    Which word is closest in meaning to “impediments”?

    asked by bob
  40. math

    find equivalent expression without using parentheses -(7x-6y+6z)

    asked by jenece
  41. chemistry

    calculate grams of potassium bromide dissolved in 50 grams of water at 0 celcius

    asked by Anonymous
  42. English

    Seven letter word fifth letter e and seventh letters s

    asked by Anonymous
  43. english

    A major difference between today’s Hispanic and past European immigrants is that— (1 point)for Hispanics, the old country is only two hours away. European immigrants were all light-skinned. Hispanics are willing to take jobs Americans don’t want.

    asked by Oi
  44. Physics

    An object is thrown vertically and has an upward velocity of 5 m/s when it reaches three fourths of its maximum height above its launch point. What is the initial (launch) speed of the object?

    asked by James
  45. Physics

    A runner of mass 51.5 kg starts from rest and accelerates with a constant acceleration of 1.35 m/s2 until she reaches a velocity of 5.7 m/s. She then continues running with this constant velocity. (Take the direction the runner is going to be the positive

    asked by James
  46. E&M Physics

    Hello, I have this number where I don't understand why there's a negative sign to it. Consider a closed triangular box resting withing a horizontal electric field of magnitude E = 7.8 x 104 N/C as shown here. Calculate the electric flux through (a) the

    asked by Robert
  47. math

    Adrienne had a pizza party at a local arcade. She spent for pizza and per person for games. Let c be the total cost of pizza and games, and let p be the number of people at her party. Write an equation to represent the problem. Which is the dependent

    asked by le
  48. algebra.

    A rectangular is six times as long as it is wide. If the area is 54 ft^2, find the length and the width of the table.

    asked by rr
  49. math

    square ABCD has the centers of 4 equal circles as its vertics. Find the shaded area

    asked by alandra
  50. Trig

    Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s.? Radius, r=16 ft Arc length, s=10 ft

    asked by Sue
  51. Statistics

    A Gallup Poll reported the percentage of Americans who approve of the President's job performance was 47% with a margin of error of 2 percentage points. What is a 95% confidence interval for the population percentage? A. 41% to 53% B. 45% to 49% C. 46% to

    asked by Mary
  52. math

    A cone shaped container with its vertex at the top and its circular base on the ground is filled to 3/4 of its height with water. What fractional part of the container is filled with water?

    asked by ...
  53. English

    1. I would be glad to go with you. 2. I would be glad if I could go with you. 3. I would be glad if I went with you. (Does #1 mean #2 or #3?) 4. To watch him play basketball, you would think him a pro player. 5. If you could watch him play basketball, you

    asked by rfvv
  54. rate of change

    Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by inspection.

    asked by Kjd
  55. Moanalua Middle School

    One box contains six color cards: two blue, three yellow, and one orange. Another box contains four number cards, numbered 1, 2, 3, and 4. One card is picked at random from each box with replacement. find the probability of blue, then 1.

    asked by Fred
  56. math

    Records from buzz's sawmill show that workers have a 0.02 probability of losing an arm and a 0.03 probability of losing a leg in a year. What is the probability that a worker does not lose an arm? What is the probability that worker does not lose and arm

    asked by Matt
  57. Math

    A bag contains 4 green marbles, 6 red marbles, and 2 white marbles. Three marbles are drawn at random with replacement. With replacement means that after a marble is drawn, it is replaced before the next one is drawn. What is the probability of not green,

    asked by Junior
  58. life orientation

    descibe 10 factors that contribute to the hiv & aids.

    asked by sibonelo
  59. physics

    a 12 Volt car battery supplies 1.0 x 10^3 C of charge to the starter. How much energy is used to start the car? ( it's not 10 cubed, but 10 to the third power)

    asked by Don
  60. graphing trig functions

    for graphing basic trig functions such as y=2sinx or y=1/3cosx, how do you know what the points are to graph with out using a calculator?

    asked by bkue
  61. math

    Five years ago, you bought a house for $151,000, with a downpayment of $30,000 which meant you took out a $121,000 loan. Your interest rate was 5.75% fixed. You would like to pay more on your loan. You check your bank statement and find the following

    asked by TAMMY
  62. physics

    An ideal gas with r(Gama) = 1.5 occupies a volume of 2.0 L. The gas expands isothermally to a volume of 3.0 L. Alternatively, the gas reaches the same final state by first adiabatically expanding to the final volume then heating isochorically to the final

    asked by sand
  63. Chemistry

    How many moles of methanol are dissolved in 1.5 L of water to make a 2.0 m solution?

    asked by Bigfoot
  64. algebra

    plz solve factor trinomial a^2+10a+16

    asked by rr
  65. Physics

    An object is thrown vertically and has an upward velocity of 5 m/s when it reaches three fourths of its maximum height above its launch point. What is the initial (launch) speed of the object?

    asked by James
  66. Math

    Mr Gopal left 3/10 of his fortune to his wife. Of the remainder, 1/10 was donated to charity and the rest was distributed among his 4 children , A , B , C and D in the ratio of 4:3:3:2 . If $63000 was given to charity, calculate (a)the amount received by A

    asked by Jason
  67. Calculus AB

    Find the derivative of f(x) = 1/x(27,000,000/pi + 6,750,000) + 20pix^2 Can someone help me with this? Thanks.

    asked by Kira
  68. Statistics

    In a poll of 1,000 adults, 57% believed that there was too much inappropriate content on TV. A 95% confidence interval for the proportion is given as 0.54 to 0.60. What is the margin of error of this poll? A. 0.54 B. 0.015 C 0.03 D. 0.57

    asked by Mary
  69. English

    Which of the following represents an appeal to the head? a. "We are apt to shut our eyes against a painful truth, and listen to the song of that siren, till she transforms us into beasts." b. "Has Great Britain any enemy, in this quarter of the world, to

    asked by mysterychicken
  70. math

    the new gymnasium being built at IS61 is a square with an area of 3,600 square feet. What are the dimensions of the gymnasium?

    asked by alandra
  71. math

    K bought some marbles and gave half of them to L. bought some stamps and gave half of them to K. K used 5 stamps and L gave away 11 marbles. The ratio of the number of stamps to the number of marbles K had left then became 1:7 and the ratio of the number

    asked by Im
  72. math

    M and N are the midpoints of the sides of a square. What is the ratio of the area of triangle AMN to the area of the complete square?

    asked by alandra
  73. statistics

    In a survey of 400 college students, 40 were left-handed. Treating the sample as if it were random and using 0.015 as the standard deviation of the sampling distribution of the sample proportion, what is the lower bound of a 95% confidence interval for the

    asked by D
  74. Math

    Two sides of rectangle are 20 cm &10 cm. They are increased in ratio 2:3 & 3:7 . Find the percentage increase in its area?

    asked by Alok
  75. chemistry

    determine the amount in grams of H2SO4 required to make 3.0L of 1.15M Nacl

    asked by ashia
  76. Physics

    A circular shop sign of mass 10kg is to be hung from the wall of the shop. The sign hangs from a light, rigid horizontal support of length 0.48m that is hinged to the wall at one end A. The other end B of the support is attached by a model string to a

    asked by Anonymous
  77. chemistry

    what is reason for the different atomic masses of the isotopes of an element

    asked by jollie
  78. ALGEBRA

    Find the future value, using the future value formula and a calculator. (Give your answer to the nearest cent.) $44.01 at 6.5% compounded semiannually for 2 years

    asked by Monic
  79. ALGEBRA

    Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. Assume 365 days in a year. (Round your answer to the nearest cent.)

    asked by Monic
  80. Physics

    A bus goes over the crest of a hill at 10 m/s and the radius of curvature of the hill is 15 m. Determine the force exerted by the car seat for a man of 75 kg. At what speed would you become weightless

    asked by Del
  81. geometry

    find the perimeter and area of a right triangle if the shortest side is 20m and the longest side is 29m. Include correct units with your solution.

    asked by angela
  82. critical thinking

    utilizing the seven factors of the utilitarian calculus briewy evalute each factor comparing dropping the bombs on Japan versus invading Japan to end world war II

    asked by Herstine
  83. Math

    Factor the polynomial completely. 6x^3 + 36x^2 - 240x

    asked by Maddie
  84. Physics

    A runner of mass 51.5 kg starts from rest and accelerates with a constant acceleration of 1.35 m/s2 until she reaches a velocity of 5.7 m/s. She then continues running with this constant velocity. (Take the direction the runner is going to be the positive

    asked by James
  85. life orientation

    discuss 5 way in which the flood impact on the community.provide relevant sources to support you claim

    asked by sibonelo
  86. algebra

    factor trinomial w^2-15w+56

    asked by rr
  87. science

    in shell and tube type of condenser, the flue gas mixture of acetaldehyde,oxygen and nitrogen at 17391.17Kg/hr enters to the condenser at 75 degree celcius and leaves at 20 degree celcius,while the cooling water enters at 17 degree celcius and leaves at 37

    asked by hagos
  88. algebra

    help; factor with wrong answer s^2+10s+25

    asked by rr
  89. accounting

    What is included in the cost basis of a long-lived asset? Explain for at least two types of such assets.

    asked by Quana
  90. accounting

    What sources are reliably used to estimate an asset's useful life?

    asked by Quana
  91. Pre-Calculus

    Hello! I'm stuck on how to do this problem and would appreciate some help! Choose a non-zero complex number c for f(z) = z2+ c. Find a complex number v that is in the escape set. Find a complex number w that is in the prisoner set. Graph the first five

    asked by Anonymous
  92. Statistics

    1000 scientists create 95% confidence intervals for parameters of interest. If they all compute the confidence intervals correctly, how many of the intervals would we expect to contain the true population parameter? A. 950 B. 0 C. 95 D. 1000

    asked by Mary
  93. Computer

    On a laptop, how do you get the 10 to the 3rd power? ( make a small 3 after the 10?)

    asked by Don
  94. social studies

    what was the cause of the american revolution of 1776 the french revolution of 1789and the Russian revolution in 1917

    asked by selena
  95. algebra

    There are n teams in a league and the number of games played is given by the polynomial n^2-n=N. A women's softball league has 12 teams. What is the total number of games to be played?

    asked by rr
  96. physics

    1.)A rock at the blank of a coast is struck by water waves.find the frequency of the waves striking the rock,if the distance between two consecutive crests or troughs is 100m.velocity of water wave is 150m/sec. 2.)the timeperiod of a vibrating body is

    asked by srikar
  97. Find x in combine function

    Given the functions f(x)=sqrt[x] and g(x)=x+1, determine all possible values of x for which f(g(x)) = g(f(x)). Show steps please, thanks a lot!

    asked by Kjd
  98. gen chemistry

    final volume obtained when a 1.5M KOH solution is dilued to 1.25M

    asked by ashia2
  99. gen chemistry

    calculate the percent m/v concentration of a 5L solution containing 500g NaCl

    asked by ashia3
  100. business

    How many 20kg bags of flour can a 20x8ft container accomodate?

    asked by Oluwaseyi
  101. chemistry

    the particles protons and neutrons present in atomic nucleus are known as......

    asked by angelina
  102. physics

    why is water tube produces the noise while pumping ground tank to upper tank at 6th flour ?

    asked by ncharyk
  103. Moanalua Middle School

    One box contains six color cards: two blue, three yellow, and one orange. Another box contains four number cards, numbered 1, 2, 3, and 4. One card is picked at random from each box with replacement. find the probability of yellow, then less than 4.

    asked by Junior
  104. MATH

    a parabola passes via the points (1.5,1) and (3,-5). given that the vertex lies on the line 7x+3y-4=0,find the focus and the equation of the parabola

    asked by KEV
  105. ALGEBRA

    Determine the comparable interest rate for a $80,000 loan when the quoted information is 12.1% + 0.5 pt + $300. (Round your answer to two decimal places.)

    asked by Monic
  106. Calculus

    HOw do I find the domain of f(x)= x^2+3x+5?

    asked by Sam
  107. math

    how many feet are in 96 inches

    asked by Anonymous
  108. World History

    What Are The Causes of The Renaissance?

    asked by Hempsam
  109. geometry

    a square has a diagonal with length 14 mm. Find the perimeter of the square.

    asked by lola
  110. Chemistry

    If a gas has a volume of 500 ml and pressure of 1.5 atm, what will the pressure be if the volume is reduced to 250 ml?

    asked by Bob
  111. Math

    How do you simplify the square root of c raised to the 15th (sqrt(c^15))?

    asked by Carson
  112. science (physics)

    A chairlift carries skiers to the top of a ski hill. If the chairlift does 180 kJ of work in 15s, what is the power of the chairlift?

    asked by mona
  113. Physics

    An object is thrown upward with a speed of 21.5 m/s. How high above the projection point is it after 2.06 s?

    asked by James
  114. Geometry

    Write 5x^10-6x^5-3 in quadratic form

    asked by shae
  115. criminal justice

    · Write a 700- to 1,050-word paper in which you describe the issues facing police departments in today’s society. · Include a description of how local, state, and federal law enforcement agencies currently interact with the U.S. Department of Homeland

    asked by asia