Questions Asked on
April 18, 2015

  1. ENGLISH

    #speech. TopIc:afRican slaughter rituals should be allowed in the suburbs?

    asked by TraCy
  2. Enthalpy

    Consider the following reaction: 2 Mg + O2 → 2 MgO ΔH rxn = -1203 kJ Calculate the amount of heat (in kJ) associated with complete reaction of 4 moles of Mg. How do I set this up correctly?

    asked by Chemistry
  3. Art

    Image: Russian icon of saint George slaying the dragon by chrysanthos Its the first image. At the center of this textile us the large form of Sr. George, who is skating a dragon on a horse. Which of the following culturally important message does this

    asked by Secrete Valentine
  4. Physics

    A piece of glass has a temperature of 83.0 °C. Liquid that has a temperature of 43.0 °C is poured over the glass, completely covering it, and the temperature at equilibrium is 59.0 °C. The mass of the glass and the liquid is the same. Ignoring the

    asked by P H Y S I C S
  5. Math

    In an arithmetic series, the sum of the 5th to the 8th terms inclusive is 114, whilst the sum of the 12th to 15th terms inclusive is 198. What is the 21st term? I have got 99=2a +3d and 57= 2a+3d Im not sure what to do now

    asked by Fasi
  6. statistics

    If you flip a coin three times, the possible outcomes are HHH, HHT, HTH, HTT, THH, THT, TTH, TTT. What is the probability of getting at least two tails? A. 1/2 B. 2/3 C. 3/4 D. 4/9 mY ANSWER IS A

    asked by SUE
  7. chemistry

    25 ml of 3M hno3 are mixed with 75ml of 4.0M HNO3 if volumes are additive then find molarity

    asked by Anonymous
  8. General Physics

    A 5.00 kg howler monkey is swinging due east on a vine. It overtakes and grab onto a 6.00 kg monkey also moving east on a second vine. The first monkey is moving at 12.0 m/s at the instant I grabs the second, which is moving at 8.00 m/s. After they join on

    asked by Safayia
  9. Physics

    Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is 114 km long, 31.3 km wide, and 194 m thick. (a) How much heat in joules would be required to melt this iceberg (assumed to be at 0 °C) into liquid water at

    asked by P H Y S I C S
  10. Physics

    An arrow is shot horizontally with a speed of 20 m/s from the top of a tower 60 m high .The time to reach the ground will be???????

    asked by TAMIM
  11. statistics

    Joe dealt 20 cards from a standard 52-card deck, and the number of red cards exceeded the number of black cards by 8. He reshuffled the cards and dealt 30 cards. This time, the number of red cards exceeded the number of black cards by 10. Determine which

    asked by phia
  12. statistic

    In a recent survey, 45% indicated chocolate was their favorite flavor of ice cream. Suppose we select a sample of fourteen people and ask them to name their favorite flavor of ice cream.

    asked by twin
  13. Chemistry

    Which of the following processes are spontaneous? (Select all that apply.) a. average car prices increasing b. a soft-boiled egg becoming raw c. a satellite falling to Earth d. water decomposing to H2 and O2 at 298 K and 1 atm I thought it would c and

    asked by Alexis
  14. statistics

    A consumer advocacy group claims that the mean amount of juice in a 16 ounce bottled drink is not 16 ounces, as stated by the bottler. Determine the conclusion of the hypothesis test assuming that the results of the sampling lead to rejection of the null

    asked by MARY
  15. Chemistry

    4. A typical car engine produces 44,000 kJ of heat in an hour. The cooling system has a capacity of 8.40 L and is filled with a 50:50 mixture of anti-freeze (specific heat capacity of 8.37 J/g-oC, density of 1.038 g/mL). In maintaining a constant engine

    asked by Thomas
  16. statistics

    The data set represents the income levels of the members of a country club. Estimate the probability that a randomly selected member earns at least $98,000. 112,000 126,000 90,000 133,000 94,000 112,000 98,000 82,000 147,000 182,000 86,000 105,000 140,000

    asked by HELP
  17. Physics

    How much heat is required to convert solid ice with a mass of 875 g and at a temperature of -11.5 °C to liquid water at a temperature of 52.0 °C? (The specific heat of ice is cice = 2100 J/kgK, the specific heat of water is cwater = 4186.8 J/kgK, and the

    asked by Karly
  18. Maths

    find the nth term and write an equation to express 4,36,100,196,324 so far I've got 32(n-1) + 4 but it only works for the first two . . .

    asked by Chris
  19. maths

    coin a is weighed so that the probability of throwing head is 2/3. coin b is weighed so that the probability of throwing a head is 1/4. coin a is thrown twice and coin b is thrown once. (I)show that the probability of obtaining exactly 1 head and 2 tails

    asked by asha
  20. World History

    Explain the impact of the Japanese attack on Pearl Harbor.

    asked by J
  21. Physics

    A clown at a birthday party has brought along a helium cylinder, with which he intends to fill balloons. When full, each balloon contains 0.00410 m3 of helium at an absolute pressure of 1.30 x 105 Pa. The cylinder contains helium at an absolute pressure of

    asked by Jay
  22. Math

    A flower bed is in the shape of a triangle with one side twice the length of the shortest side, and the third side is 18 feet more than the length of the shortest side. Find the dimensions if the perimeter is 142 feet.

    asked by Durante
  23. algebra

    solve for x, y and z when 2x + 4y + 2z = 144 4x + y + 0.5z = 120 x + 3y + 4z = 144

    asked by andrea
  24. trig

    Karen earns 43 dollars per week working pt at a bookstore. she makes one dollar more for each book she sells. the amt A, in dollars that Karen earns in a week ifshe sells b books is given in the function A(b) =43 + b how much does she earnin a week if she

    asked by denise
  25. math

    The Statue of Liberty is about 151 feet tall. If the angle of elevation from a tree in Liberty State Park to the statue's top is 1.5 degrees, how far is the tree from the statue?

    asked by Kenny
  26. math

    The Statue of Liberty is about 151 feet tall. If the angle of elevation from a tree in Liberty State Park to the statue's top is 1.5 degrees, how far is the tree from the statue? cot 1.5 DEGREES= h/ 151 151 cot 1.5= h h= ________

    asked by Kenny
  27. error analyze

    Can you check grammatical error, word use error and sentence structure error in this text? >>>This text is text, teacher to come to find the errors. I need you help just tell the error of each part. What's there? >>>Thank you

    asked by Bell
  28. math help

    A tank has two pipes entering it.when operating together,they fill the tank in 40 minutes.operating independently,one of the pipes fills the tank 60 minutes faster than the other one does. Calculate the time taken by each pipe to fill the tank on its own.

    asked by thabo
  29. math (algebra)

    An entrepreneur has the following costs and revenue functions: TC = 30 + 3Q and TR = 4Q. Calculate the equilibrium quantity algebraically and graphically at the break-even point.

    asked by andrea
  30. human development

    What are some of the ways that children learn about gender stereotypes?

    asked by priya
  31. statistics

    A researcher wishes to estimate the mean amount of money spent per month on food by households in a certain neighborhood. She desires a margin of error of $30. Past studies suggest that a population standard deviation of $248 is reasonable. Estimate the

    asked by MARY
  32. Physics I

    A container of volume 0.71 m3 contains 1 mol of argon gas at 27◦C. Assuming argon behaves as an ideal gas, find the total internal energy of this gas. The value of gas constant is 8.31451 J/mol · K

    asked by Brayan
  33. math

    A salesperson earned 33,250 on annual sales of 950,000. What is her rate of commission.

    asked by Barbara
  34. Molarity question

    okay so in lab we made up 2 solutions of FeCl3 and KI. We varied the volumes...I was just wondering how to calculate a new concentration for those solutions. We weighed out .825g of the FeCl3 and 1.35 g of the KI. For trial one we used 20 mL of both. For

    asked by michelle
  35. Math

    Question asks to solve for x with equation: x = 3(r + ty) Please help with how to solve? Thank you.

    asked by Cassandra
  36. physics

    Two speakers, one at the origin and the other facing it at x = 1.04 m, are driven by the same oscillator at a frequency of 642 Hz. If the speed of sound is 343 m/s, find the following. I know the wavelength is .53 m how do I do b? (b) the location of a

    asked by titu
  37. science

    if 1g of carbon dioxide is bubbled into 100g of a calcium hydroxide solution in a flask. what is the total mass of substance in the flask after the reaction is complete?

    asked by jasmine
  38. Math

    An artist drew a painting with similar rectangles with whole-number dimensions in inches. The small rectangle is 8 inches by 3 inches. One dimension of the medium rectangle is 9 inches. One dimension of the large rectangle is 32 inches. a. find the

    asked by Jay
  39. Math

    Whoever can help with a question I posted earlier. I am very sorry; I put the wrong variable in the question. Question is to solve for y and not "x" as my previous message and the equation is: x = 3(r + ty) So sorry for the confusion. Please help at your

    asked by Cassandra
  40. Physics

    A stone is dropped from the peak of a hill. It covers a distance of 45 meters in ther last two seconds of its motion. Find the height of the peak?

    asked by Anonymous
  41. Science

    Assuming all volume measurements are made at the same temperature and pressure, what volume of hydrogen gas is needed to react completely with 3.75 L of oxygen gas to produce water vapor?

    asked by James
  42. physics

    Tony£¬a 110kg football player£¬has a fever of 39celcius. What mass of water must evaporate from his body to cool him to 37celcius£¿

    asked by Anonymous
  43. physics

    Which quarks will I find in a neutron? (only one answer is correct) A: Three up quarks. B: Two up quarks and a down quark. C: Two down quarks and an up quark. D: One charm quark, one up quark and one down quark.

    asked by titu
  44. science-chemistry

    if 1g of carbon dioxide is bubbled into 100g of a calcium hydroxide solution in a flask. what is the total mass of substance in the flask after the reaction is complete?

    asked by jasmine
  45. World History

    31. Explain the impact of the Balfour Declaration on the Middle East. (4 points)

    asked by Hanah
  46. Physics/Chemistry HELP!! URGENT!!

    Arsenic in geomedia contaminates an aquifer by naturally occurring geological processes. The aquifer has a bulk density of 1.55 g/cm3 and a particle density of 2.63 g/cm3. The distribution coefficient, Kd value is 0.0370 L/kg. The initial concentration at

    asked by Maty
  47. Physics

    Heat is added to 0.77 kg of ice at -25 °C. How many kilocalories are required to change the ice to steam at 131 °C? I don't even know where to begin with this

    asked by Karly
  48. human development

    What changes take place in early adolescence to gender identity?

    asked by priya
  49. english

    I need help.I have to write a prepared speech on the topic-traditional african marriages is an advantage to men only not women

    asked by bonolo
  50. physics

    A technician makes a 5.0 kg metal object containing two parts£¬one of iron and the other of aluminum.If it takes 504kj to change the objects temperature from 25 celcius to 165celcius£¬what is the mass of each part£¿

    asked by Anonymous
  51. physics

    Before leaving for a vacation£¬the owners of a home 8.0m *21m*5.0m turn the thermostat down to 14celcius. On their return£¬how much heat is needed to raise the temperature of the air inside the home to 21celcius£¿Ignore the heat needed to warm the

    asked by Anonymous
  52. physics

    A cook placed five eggs£¬each having a heat capacity of 114J/celcius£¬in a 250g aluminum pot containing 0.5L of water at a temperature of 20celcius. If the heating element is raised at 750W£¬and one fifth of the heat escapes to the

    asked by Anonymous
  53. Science

    53.9 mL of 0.991 M nitric acid is added to 45.3 mL of sodium hydroxide, and the resulting solution is found to be acidic. 20.5 mL of 1.51 M potassium hydroxide is required to reach neutrality. What is the molarity of the original sodium hydroxide solution?

    asked by Anonymous
  54. physics

    An aluminum calorimeter of mass 400g contains 200g of water at a temperature of 18celcius.When a block of nickel at a temperature of 80celcius is dropped into the water£¬the final temperature of the mixture becomes 28celcius. Find the mass of the nickel.

    asked by Anonymous
  55. Architect

    What kind of training do you need to become a landscape architect?

    asked by Anonymous
  56. AP Physics

    The white ball in the figure has a speed of 1.67 m/s and the yellow ball is at rest prior to an elastic glancing collision. After the collision the white ball has a speed of 1.43 m/s. To the nearest tenth of a degree, measured counterclockwise from east,

    asked by Alexis
  57. human development

    Describe how the body grows over childhood and adolescence.

    asked by priya
  58. tech

    what is colour field

    asked by adu
  59. math

    what is the global maximum of the parabola y= -x^2 -12x +4

    asked by Vicky
  60. precalc

    Find the focus and directrix of y=4x^2

    asked by moooose
  61. Calculus

    Write the Riemann sum to find the area under the graph of the function f(x) = x4 from x = 5 to x = 7.

    asked by joe9
  62. Physics

    At what time after being ejected in the boulder moving at 20m/s upward if a large boulder is ejected from volcano with initial

    asked by Anonymous
  63. AP Physics

    The white ball in the figure has a speed of 1.67 m/s and the yellow ball is at rest prior to an elastic glancing collision. After the collision the white ball has a speed of 1.43 m/s. To the nearest tenth of a degree, measured counterclockwise from east,

    asked by Alexis
  64. Chem

    Potable water (drinking water) should not have manganese concentrations in excess of 0.05 mg/mL. If the manganese concentration is greater than 0.1 mg/mL, it imparts a foul taste to the water and discolors laundry and porcelain surfaces. In an acidic

    asked by jason
  65. algebra

    Describe how you know if an inequality is an “and” or an “or” problem. (use -3 < x+5 < 8). Also, how do you know if an absolute value question is an “and” or an “or” problem?

    asked by Anonymous
  66. Heat

    Consider the following equation: CO + 2 H2 → CH3OH ΔH rxn = -128 kJ Calculate the amount of heat (in kJ) associated with complete reaction of 8.08 g H2. How would u set that up?

    asked by Chemistry
  67. Math

    School A has 480 students and 16 classrooms, School B has 192 students and 12 classrooms. How many students would have to transfer from School A to School B for the ratios of students to classrooms at both schools to be the same? Explain your answer.

    asked by Jay
  68. math

    Sarah was trying to figure out her grades for her math course. She only knew the grade of 4 tests she had taken, however the class had taken 5 tests total. She scored a 94, 67, 83 and 93. If Sarah ended up with a grade of 90, what did she get on the 5th

    asked by Jay
  69. ALGEBRA II

    Write each series in summation notation: *this is the only one that i cant solve -2+4+(-6)+8+(-10)+12 Please help! :(

    asked by Sora
  70. help please

    can someone help me in sign language if they can't please write back a reponse

    asked by kate
  71. statistics

    A two-tailed test is conducted at the 0.10 significance level. What is the P-value required to reject the null hypothesis? A. Greater than or equal to .010 B. Greater than or equal to 0.05 C. Less than or equal to 0.10 D. Less than or equal to 0.05 Is it

    asked by jay
  72. calc

    If a cost of a function is C(x) = (49 ln x) / (28-3x), find the marginal cost when x = 7

    asked by Luke
  73. geometry

    I had to complete the following solution by filling in the missing statements and reasons. I filled out the statements, but am having trouble wording the last two reasons. Following solution: x-2(3x-4)=18 Statement: x-2(3x-4)=18 Reason: Given Statement:

    asked by Bridget
  74. Art

    Which technique do Native Americans use to form patterned blanket? A. Embroidery B. Weaving C. Stitchery D. Applique Is the answer B? Thank you

    asked by Secrete Valentine
  75. Algebra

    Use the properties of exponents to simplify as much as possible (8a^3b^6)^(1/3)/(16a^8b^-4)^(1/4)

    asked by Vicki
  76. Vectors

    At what point does the line r=(-2,3,1)+s(2,3,-1) intersect the y-axis?

    asked by Sara
  77. Sequences

    find the nth term and write an equation to express 4,36,100,196,324 so far I've got 32(n-1) + 4 but it only works for the first two . . .

    asked by Lauren
  78. error analyze

    Can you check grammar error in this text? What can you do to reduce global warming in Thailand? Nowadays, The problem global warming is main problem for everybody in the world. It is effect on change of weather that the world have temperature highest. In

    asked by Sophia
  79. s.s

    My friends asking. who was JFK killed by and was Lincoln a republican or democratic

    asked by Anonymous
  80. Art

    Prior to the arrival of the Spanish, Native Americans would likely have chosen which material with which to weave their blankets? A. Oat wool. B. Silk. C. Sheep wool. D. Cotton. D? Thank you

    asked by Secrete Valentine
  81. math

    Aiden completed 18 out of the 25 questions on his history test. What percent of the questions did he complete

    asked by mindy
  82. Further maths

    Two functions f and g are defined over the set of R of real numbers as follows: f:x=2x-3 g:x=xsquare+5 find f[g(x-1)]

    asked by Vivian
  83. math

    The 5th term of an Arithmetic Progression is 8 and the 12th term is 50. Determine the sequence

    asked by marry
  84. physics

    why is the momentum constant if the mango drops from the tree without rebound

    asked by judith
  85. maths

    The no.wich Is 4 more than the square of 625 .....is exactly 2 prime factors.find them..... I am trying lyk this But answer is not coming X^2= 4+625^2

    asked by rakhi
  86. mathematics teaching

    How you will use the measuring jug(500ml) to explain the difference between capacity and volume to learners.

    asked by Annah van tonder
  87. math

    find roots of this equation y^3-1.5y^2+0.3275

    asked by anand
  88. Math

    a surveyor is 3 miles from a mountain. The angle of elevation from the ground to the top of the mountain is 15 degrees. What is the height of the mountain?

    asked by Kenny
  89. math

    the angle of elevation from a ship to a 135-foot-tall lighthouse is 2 degrees. How far is the ship from the lighthouse?

    asked by Kenny
  90. math

    it costs $80 to produce any quantity of output and $1.60 for any additional unit of output. write down the equation and graph the total cost function

    asked by andrea
  91. Math

    Can you help with this equation? Have to solve for the indicated variable: For x: With equation y = x + 1/x - 1; in case it doesn't make sense; the x + 1 is in the numerator and the x - 1 is in the denominator. Thank you for your help. Cassandra

    asked by Cassandra
  92. Math

    Can you help please on the following question: "The sum of the lengths of the legs of a right triangle is 8 feet. If the length of the hypotenuse is 6 feet, find the length of the shorter leg to the nearest tenth of a foot." Thank you, Cassandra

    asked by Cassandra
  93. social studies

    what are resoures ?

    asked by dhejhan
  94. poetry

    what is a 14 line poem

    asked by dhejhan
  95. maths

    Write 5x-3 in positive index

    asked by jasmine
  96. Physics

    Two tiny similar balls, each of mass m kg & carrying charge q coulomb are hung from the same point by light silk threads each l meter long. At equilibrium the angle between the threads is very small and the separation of the balls is r meter. Show that R =

    asked by asdfg
  97. math

    The data set represents the income levels of the members of a country club. Estimate the probability that a randomly selected member earns at least $98,000. 112,000 126,000 90,000 133,000 94,000 112,000 98,000 82,000 147,000 182,000 86,000 105,000 140,000

    asked by HELP
  98. english

    traditional african marriage is an advantage for men only, not for women

    asked by anathi
  99. science

    A cart of weight 25 N is released at the top of an inclined plane of length 1m, which makes an angle of 30° with the ground. It rolls down the plane and hits another cart of weight 40 N at the bottom of the incline. Calculate the speed of the first cart

    asked by harini