Questions Asked on
February 14, 2012

  1. chemistry

    Consider the reaction 3CH4(g)= C3H8(g)+ 2H2(g). Using data from Appendix C in the textbook, calculate delta G at 298 K.

    asked by Anonymous
  2. chemistry

    Reactions in which a substance decomposes by losing CO are called decarbonylation reactions. The decarbonylation of acetic acid proceeds as follows: CH3COOH(l)= CH3OH(g)+ CO(g. By using data from Appendix C in the textbook, calculate the minimum

    asked by Anonymous
  3. Chemistry

    Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2(g) delta H1? MgO(s) + 2HCl(aq) ->MgCl2(aq) + H2O(l) delta H2? To make these equations add up to the formation reaction of MgO, you will need to include the following: H2(g) + 1/2O2(l) delta H =-241.8 kJ Using Hess's Law

    asked by Hannah
  4. math

    A playground is on the flat roof of a city school, 5.8 m above the street below (see figure). The vertical wall of the building is h = 7.30 m high, to form a 1.5-m-high railing around the playground. A ball has fallen to the street below, and a passerby

    asked by anonymous
  5. chemistry

    After 56.0 min, 25.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics?

    asked by Anonymous
  6. 6th Grade Math

    My daughter needs to use PROPORTION to solve metric conversions. Can you please help? The question are for the following conversions: g=kg ___g = 5.114 kg km=m 0.5 km = ___m These are the other conversions that we need to make: ml=L g=mg cm=m kg=g km=m 0.5

    asked by Mom
  7. math

    Alan's room has an area of 18 square feet. He is planning to buy another rug twice as long and twice as wide.What is the area of the new rug?

    asked by Kara Weber
  8. Physics

    A 80.0 N box of is pulled 20.0 m up a 30.0 Degree ramp by a force of 115 N, if the coefficient of kinetic friction between the box and the ramp is .22 what is the box's kinetic energy?

    asked by Emily
  9. chemistry

    Consider the reaction 3CH4(g)= C3H8(g)+ 2H2(g).Calculate Delta G at 298 K if the reaction mixture consists of 40 atm of CH4 , 0.011 atm of C3H8, and 2.1×10−2 atm of H2.

    asked by Anonymous
  10. Physics

    A commuter airplane starts from an airport and takes the route shown in the figure below. The plane first flies to city A, located 175 km away in a direction 30.0° north of east. Next, it flies for 150 km 20.0° west of north, to city B. Finally, the

    asked by anonymous
  11. chemistry

    Mercury reacts with oxygen to produce mercury(II) oxide. Hg(l) + O2(g) → HgO(s) a. Balance the reaction equation. Include physical states. 2Hg(l) + O2(g) → 2HgO(s) b. What is the theoretical yield (in grams) of HgO if 255 g of Hg are reacted with 255 g

    asked by krystal
  12. economics

    Suppose that the company Mama's Pies adds another store to sell its pastries. Supposed that it costs $400,000 to build the new store and assume that the new store will generate revenues of $450,000. What is the rate of return on this investment?

    asked by marry
  13. chemistry

    what mass of oxygen would be required to completely burn 6.75 g of propane in the following reaction? C3H8+5O2 => 3CO2+4H2O * please help

    asked by romy
  14. American Government

    Which statement does NOT characterize Martin Luther King Jr.'s "I Have a Dream" speech? 1.)It openly criticized the Governor of Alabama 2.)It supported the peaceful congregation of peoples of all races and religions 3.)It pointed out racial problems in the

    asked by Sierra
  15. math

    The perimeter of rectangle ABCD is 256 inches. It's length is 3 times as long as its width. Find the area of triangle ABC.

    asked by zach
  16. chemistry

    when 0.100mole H2S was put into a 10.0-L vessel and heated to 1132C, it gave an equilibrium maixture containing 0.0285 mol H2. @hat are the valuesw of Kc and Kp at this temperature?

    asked by tammie
  17. Microbiology

    Live cultures of Bacillus thuringiensis (Dipel) and B. subtilis (Kodiak) are sold as pesticides.What bacterial structures make it possible to package and sell these bacteria? For what purpose is each product used?

    asked by AHh
  18. Chemistry

    What is unusual about thymol blue? Why does thymbol blue change color at the pH that is does?

    asked by ERIKA
  19. chemistry

    how many moles of oxygen are required for the combustion of 25.5 g of magnesium

    asked by mike
  20. phyisics

    A 615 kg racing car completes one lap in 14.3 s around a circular track with a radius of 40.0 m. The car moves at constant speed. (a) What is the acceleration of the car?

    asked by matt
  21. Algebra

    The bongo family has three children, including a pair of twins. The third child is 3 years younger then the twins. The sum of the three ages is 42. How old is each child?

    asked by Anonymous
  22. Math

    An airplane leaves the airport and flies due west 170 miles and then 240 miles in the direction 200°30'. Assuming the earth is flat, how far is the plane from the airport at this time( to the nearest mile)?

    asked by Joe
  23. physics

    a stone with a mass of .700kg is attached to the end of a rting 0.900m long. the string will break if its tension exceed 60.0 N. the stone is whirled in a horizontal circle on a frictionless tabletop; the other of the string remain fixed. Find the maximum

    asked by Jennifer h.
  24. chemistry

    Yellow colors in fireworks are die to the 589 nm radiation of sodium ions. a.) How much energy is given off by one photon of sodium?

    asked by Eddie
  25. calculus

    A particle moves in a straight line with velocity given by v(t) =sin t metres per second. Find the total distance travelled by the particle in the first 4 seconds of motion

    asked by jenna
  26. physics

    two packages at ups start sliding down the 20 degrees ramp. package a has a mass of 4.5kg and a coefficient of friction of 0.2. package b has a mass of 8.5 kg and its coefficient of friction is 0.13. how long does it take package A to reach the bottom if

    asked by daphne
  27. Math

    to measure the height of the Eiffel Tower in Paris, a person stands away from the base and measures the angle of elevation to the top of the tower to be 60 degrees. Moving 210 feet closer, the angle of elevation to the top of the tower is 70 degrees. How

    asked by Donielle
  28. math

    a factory produces 150,000 lightbulbs per day. the manager of the factory estimates that fewer than 1,000 defictive bulbs are produced each day . in a random sample of 250 lightbulbs , there are 2 defictive bulbs . determine whether the managers estimate

    asked by darlene
  29. physics

    A man with a mass of 52 kg stands up in a 66-kg canoe of length 4.0 m floating on water. He walks from a point 0.75 m from the back of the canoe to a point 0.75 m from the front of the canoe. Assume negligible friction between the canoe and the water. How

    asked by sara
  30. chemistry

    Determine the volume of a 0.550 M KMnO4 solution required to completely react with 2.80 g of Zn.

    asked by sie
  31. grammar

    Hyphens are so confusing, so I'm asking for a little help. 2. Select the sentence which is correctly punctuated. A) He came in for his follow up. B) He came in for his followup. My answer: B 4. Select the sentence which is correctly punctuated. A) He will

    asked by Jenny
  32. Math

    Mr. Clarkson and Mrs. Rose had an average of $180. After Mr. Clarkson spent $73 and Mrs. Rose received $38 from her father, Mr. Clarkson had 1/4 as much money as Mrs. Rose. How much money did each have at first?

    asked by Matthew
  33. Calculus

    4. At time t, t>0, the volume of a sphere is increasing at a rate proportional to the reciprocal of its radius. At t = 0, the radius of the sphere is 1 and at t = 15 the radius is 2. a. Find the radius of the sphere as a function of t. b. At what time t

    asked by Anonymous
  34. 1 chem question

    A base has a Kb of 2.5 x 10–11. Which of the following statements is true? This is a concentrated base. This base ionizes slightly in aqueous solution. This is a strong base. An aqueous solution of this base would be acidic. (do explain. i don't

    asked by Sara
  35. calc

    If x2 + y2 = 100 and dy/dt = 9, find dx/dt when y = 8. (Enter your answers as a comma-separated list.)

    asked by Anonymous
  36. statistics

    A math professor notices that scores from a recent exam are normally distributed with a mean of 64 and a standard deviation of 5. Answer the following questions using integer values. What score do 75% of the students exam scores fall below? And, how was

    asked by Dora
  37. Physics

    The drawing shows two fully charged capacitors (C1 = 7 µF, q1 = 4 µC; C2 = 16 µF, q2 = 4 µC). The switch is closed, and charge flows until equilibrium is reestablished (i.e., until both capacitors have the same voltage across their plates). Find the

    asked by Laura
  38. chemistry

    Aluminum and oxygen react to form aluminum oxide. 4 Al + 3 O2 2 Al2O3 a. What is the limiting reactant if 36.4 g Al are reacted with 36.4 g of O2? O2 b. What is the theoretical yield of Al2O3, in grams? 68.8 g c. If 22.2 g of Al2O3 are obtained, what is

    asked by krystal
  39. Statistics

    A math professor notices that scores from a recent exam are normally distributed with a mean of 64 and a standard deviation of 5. Answer the following questions using integer values. The professor decides to grade on a curve. If he wants 0.15% of the

    asked by Dora
  40. Physics Help

    While a person is walking, his arms swing through approximately a 45° angle in 1/2 s. As a reasonable approximation, we can assume that the arm moves with constant speed during each swing. A typical arm is 70.0 cm long, measured from the shoulder joint.

    asked by D.J
  41. Geometry

    Two sides of a rhombus form a 120º angle. The length of each side is 6 in. Explain how to find the area of the rhombus, and then calculate the area. Leave your answer in simplest radical form.

    asked by Rachel
  42. 7th grade math

    Toby is making a model of a battlefield. The actual area is 11 miles by 7.5 miles. He wants to put the model on a 3.25 ft by 3.25 ft square table with at least 3 inches on each side between the model and table edges. What is the largest scale he can use?

    asked by Logan
  43. physics

    A mango fruit drops to the ground from the top of its free which is 15m high.how long does it take to reach the ground.

    asked by Anonymous
  44. US History

    During the period 1800 to 1820, which of the following issues dominated nation government concerns? Indian removal, western expansion, tariff issues, New England's success with nullification, or successful foreign policy changes with France & Italy. I

    asked by Anonymous
  45. math

    What multiplication fact could you use to find a number that can be divided equally by 8 and 9? My answer is 8 x 9 = 72. Is this correct?

    asked by sheila
  46. math

    Shaun collects coins. He has 24 quarters and 32 pennies in a jar. What is the ratio of quarters to pennies in the jar?

    asked by dawit
  47. Physics

    A force 1 of magnitude 7.20 units acts on an object at the origin in a direction θ = 29.0° above the positive x-axis. (See the figure below.) A second force 2 of magnitude 5.00 units acts on the object in the direction of the positive y-axis. Find

    asked by Haroula
  48. Physics i.e science

    A density bottle has a mass of 35g when empty, 85g when filled with water and 75g when filled with kerosene. Calculate the density of kerosene in g/cm3.

    asked by Abbie
  49. literature

    Write two original sentences for each of the following seven sentence patterns: 1.S-V-DO (includes S-V-DO-OC) 2.S-V 3.S-V-IO-DO 4.S-LV-PN 5.S-LV-PA 6.EXPLETIVE-VERB-SUBJECT (inverted sentence) 7.QUESTION PATTERN

    asked by susan
  50. Chemistry

    If 25 grams of CoCl2•H2O,2 being the subscript of cl and the h, was heated to constant weight. What mass of anhydrous salt would remain?

    asked by Carrie
  51. chemistry

    1-Butene (CH2=CHCH2CH3) burns in the presence of O2 to produce CO2 and H2O. Write the balanced chemical equation for this reaction (omit physical states and use condensed molecular formulas). CH2CHCH2CH3+6O2=4CO2+4H2O

    asked by krystal
  52. Chemistry

    Calculate mass of iron in tablet by spectroscopy? I have to calculate the mass of iron in a tablet..The manufacturers claim it contains 60 mg elemental iron. background info: The tablet was crushed and dissolved in 25ml of 6M Hcl, filtered and added to a

    asked by Drake
  53. Math

    If 50% of the students in your class are men and 20% of the students have blond hair, which of the following describes the percentage of students in your class who are men with blond hair?

    asked by Marche
  54. chemistry

    A 1.04-L sample of gas at 759 mmHg pressure is expanded until its volumes is 2.24 L. What is the pressure in the expanded gas sample (at constant temperature)?

    asked by Amy
  55. physics

    two ends of a string in her hands and then moves her hands up and down so that a wave travels from one end of the string to the other end. In which case will she have a standing wave along the string?

    asked by derick
  56. AP CHEMISTRY

    If a solution of HF (Ka = 6.8 10-4) has a pH of 3.42, calculate the total concentration of hydrofluoric acid.

    asked by Stanley3000
  57. chemistry

    Aluminum metal reacts with oxygen gas (O2) to form aluminum oxide. a. Write a balanced equation for this oxidation-reduction reaction. (In this problem you need not worry about the physical state of the reactants or product.) 2Al+3O2=2Al2O3 b. which

    asked by krystal
  58. Physics 12

    I need help on solving this problem A plane with an air speed of 400km/hr wants to go north but a wind of 70 km/hr is blowing west. What must be the planes heading (to go north)? What will be its resulting ground speed?

    asked by Angelina
  59. chemistry

    The blue color of the sky results from the scattering of sunlight by air molecules. The blue light has a frequency of about 7.5 * 10^14 Hz. What is the wavelength of this radiation in nanometers?

    asked by Eddie
  60. college physics

    calculate the specific heat of 200g of substance whose temperature is 30 degree celcius if it is mixed with 200g of water heated in a 300g iron container at 100 degree celcius. the final temperature of the mixture is 98 degree celcius.

    asked by albert
  61. chemistry

    a mixture of 0.500 mol H2 and 0.500 mol I2 was placed in a 2.00-L stainless-steel flask at 430C. Calculate the concentrations of H2, I2, and HI at equilibrium

    asked by tammie
  62. Statistics

    On standard IQ tests, the mean is 100 and the standard deviation is 13. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is between 61 and 139.

    asked by Anonymous
  63. math

    A tree casts a shadow that is 20 feet long. A 5-foot-tall boy stands in the shadow so that the end of his shadow lines up with that of the tree. His shadow is 6 feet long. How tall is the tree

    asked by Jasmine
  64. English

    I left out these sentences. Can you please help me express them? Thank you very much! 1) I also use Internet to download music from different websites and then I save it on my computer or MP3 player. (where else can I save it? Flashdrive, USB memory

    asked by Henry2
  65. algebra

    0. Tell your classmates about your pet to set up the scenario for fencing a rectangle in your yard. 1. You MUST start by choosing an amount of area that you want to fence in for your pet and this MUST be stated first. What amount of area are you enclosing

    asked by jim
  66. Math

    . An IRS auditor randomly selects 3 tax returns from 59 returns of which 11 contain errors. What is the probability that she selects none of those containing errors? Round to four decimal places.

    asked by Kandice
  67. Standard Deviation

    On standard IQ tests, the mean is 100 and the standard deviation is 16. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is more than 100.

    asked by Anonymous
  68. Physics

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by Max
  69. Math

    Jerry bought 2 pies. He cut each pie into 6 slices. Over the week, he ate all of one pie and 2 slices of the ow much of the total slices did he ate.

    asked by Anonymous
  70. algebra

    Please help me. I have cut up the paper and followed the directions, I do not know what mathematical truth this is. help help help. I don't understand this. the problem is below: Cut a piece of paper to form a triangle shape. Tear off the three corners of

    asked by Lucy needs help now
  71. Social Studies 9

    I have to write a pamphlet for my teacher, the pamphlet is on Charles the First, in the view of Walter Prynne. How am i supposed to do this? My teacher never explained how. she just said to do it and gave us a sheet that said basically what she had said,

    asked by Shania
  72. 5th grade science

    A substance seems to completely fill a container, but more can be forced in. The substance is a

    asked by Yamani
  73. statistics/correlation relations

    What does your scatter diagram look like? Briefly describe it. Based on your prediction about the relationship between the amount of coffee people drink and the number of hours they sleep, what is your H0 and what is your HA ? Did you find a positive

    asked by Beverly
  74. chemistry

    Consider the following reaction. 4Fe + 3O2=2Fe2O3 a. How many moles of O2 are required to react completely with 29.8 mg of Fe? 4.00 x 10^-4 moles O2 b. How many grams Fe2O3, are produced from the complete reaction of 17.8 g of Fe? 25.4 g Fe2O3

    asked by krystal
  75. Angular Acceleration

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by MaxX
  76. English 10 --- Check Please

    I this paragraph correct? Many names for groups are quite interesting. Group names were commonly used at one time. Now only a few of them are rare, some like "a pride of lions" or " a school of fish." Yet some group names are really neat in describing, for

    asked by Mackenzie
  77. English

    To answer the question below, use an idea that you generated in Part 2 of Lesson 2 or come up with a new idea. In the text box provided below indicate the following; The writing idea The kinds of questions you will be writing (Informational , Personal, or

    asked by Nannielee
  78. chemistry

    What mass of potassium chloride, a salt substitute often used by heart patients, can be produced directly from 5.2 g potassium and 7.9 g chlorine? 9.9 g

    asked by krystal
  79. Physics

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by Max
  80. Chemistry

    How would you prepare 10.0 Liters of a solution that was 20 parts per million sodium perchlorate in water? What would be the molarity of the solution (assume density is 1.0 g/mL and 1ppm=1 mL/L)?

    asked by John
  81. Chemistry

    Without detailed equilibrium calculations, estimate the equilibrium concentration of SO3 when a mixture of 0.134 mol of SO2 and 0.067 mol of O2 in a 275 mL flask at 300oC combine to form SO3. 2 SO2(g) + O2(g) = 2 SO3(g) Kc = 6.3x10^9 I tried doing an ICE

    asked by Kiba
  82. physics

    A golfer drives a ball with a velocity of 42 m/s at an angle of 45 degrees above the horizontal. What is the maximum height (in meters) of the ball above the level fairway?

    asked by j
  83. college physics

    calculate the specific heat of 200g of substance whose temperature is 30 degree celcius if it is mixed with 200g of water heated in a 300g iron container at 100 degree celcius. the final temperature of the mixture is 98 degree celcius.

    asked by albert
  84. biology

    Total body sodium content determines extracellular fluid volume, and is regulated by the balance between sodium intake and sodium loss. Oubain is a poison that causes blockage of the Na+/K+ ATPase. Which of the following would occur after administration of

    asked by jack bauer
  85. Grade 7 math

    The rectangular base of a box has a perimeter of 60cm. The base is twice as long as it is wide. Saskia plans to cover the top and bottom with coloured paper;which cost 5 cents per square centimetre. She lans to cover the other 4 faces with white paper;

    asked by Anonymous
  86. 7th grade math

    Toby is making a model of a battlefield. The actual area is 11 miles by 7.5 miles. He wants to put the model on a 3.25 ft by 3.25 ft square table with at least 3 inches on each side between the model and table edges. What is the largest scale he can use?

    asked by Logan
  87. Civics

    Article II of the United States Constitution established the _____. presidency only presidency and the vice presidency the vice presidency only =the Senate and the House

    asked by Sierra
  88. English

    jake dad not be anymore physical and he not be able to grab jake daughter when she fall into lake. Jake effects rescue. what be the symbolic meaning of incident? jake own past come infront of his eyes?

    asked by Mohammad
  89. Calculas

    Find an equation of the line that is tangent to the graph of f and parallel to the given line. Function Line f(x) = 2x^2 6x – y + 4 = 0 I know i have to find derivative 1st which will be f'(x)=4x but then how to i find equation do i plug 6 in for x so

    asked by Anonymous
  90. sociology help me please

    EXAMPLES OF macro and micro sociology cannot be : prostitution gender inequality economy homelesness

    asked by gabby
  91. jake

    2. Solve this equation: 80 = 3y + 2y + 4 + 1. A. y = –15 B. y = 1/5 C. y = 75 [D. y = 15] i don't realy know if that is correct because i think it could be negative like in a please let me know

    asked by math
  92. Statistics

    On standard IQ tests, the mean is 110 and the standard deviation is 15. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is less than 155.

    asked by Anonymous
  93. Chemistry

    Consider the following reaction. 2KClO3(s) ¨ 2KCl(s) + 3O2(g) A)How many grams of KCl are produced from the complete reaction of 10.9 mol of KClO3? B)How many grams of KCl are produced from the complete reaction of 86.2 g of KClO3?

    asked by Kyle
  94. English

    I included a few questions and a short paragraph about a teenager talking about the internet (Do you think I should add other reasons for using the net?) 1) What does the sentence "I'm sick leaving" mean? Does it mean "I'm on scik leave?" 2) My students

    asked by Henry2
  95. College Physics

    A tiger leaps horizontally from a 15.0 m high rock with a speed of 7.10 m/s. How far (in meters) from the base of the rock will it land?

    asked by Charles
  96. statistics

    How is the rejection region defined and how is that related to the z-score and the p value? When do you reject or fail to reject the null hypothesis? Why do you think statisticians are asked to complete hypothesis testing? Can you think of examples in

    asked by Jay
  97. Shurley English

    How would you label sting in "Ouch, that bee sting hurts."

    asked by M
  98. 7 grade math

    The rectangular base of a box has a perimeter of 60cm. The base is twice as long as it is wide. Saskia plans to cover the top and bottom with coloured paper;which cost 5 cents per square centimetre. She lans to cover the other 4 faces with white paper;

    asked by Amy
  99. College mathematics 1

    The end of a 30 inch pendulum describes an arc of 6 inches through what angle does the pendulum swing?

    asked by Linda
  100. math. need help

    United States citizens living in Switzerland must pay taxes on their income to both the United States and to Switzerland. Suppose that the United States tax is 28% of their taxable income after deducting the tax paid to Switzerland. Suppose that the tax

    asked by danny
  101. English

    ms. sue this be english continued from yesterday on story questions :)and i try to remember to put capital English now :) what be jakes attitude toward darkness and night? i only read that he like darkness because he lose his parents in daylight. i not

    asked by Mohammad
  102. physics

    A mango fruit drops to the ground from the top of its free which is 15m high.how long does it take to reach the ground.

    asked by Anonymous
  103. college algebra

    What is the answers and break down of them, Typing hint: Type x 2 as x^2 (shift 6 on the keyboard will give ^) 1) Solve the following quadratic equation by factoring: a) 7 010 2 xx =++ Answers: Show your work here: b) Solve the quadratic equation using the

    asked by jim
  104. math

    Given 9 yards of fabric how many whole costumes could be made if each costume uses 1 3/7 yards of fabric

    asked by Jesse
  105. English

    when jake tell her daughter that her grandfather be really sick, she say "Oh" which be a wounded soung. a moan. orpheus look back and regret in his throat. what this tell about jake daughter? she be innocent?

    asked by Mohammad
  106. history

    All of the following statements regarding the Monroe Doctrine are correct EXCEPT? A. Issued by Monroe in response to an onslaught by European monarchies against democracy in the Americas. B. Would have been ineffective without the backing of the British

    asked by student
  107. biology

    1) I can't finish my homework due to this one question, please tell me where I can find this question, thanks! What are levels of protein structure of Angiosperms?

    asked by Jessica
  108. Math Lit

    A Maths Literacy tutor charges R200 for an hour lesson. A)how much would it cost for a private lesson? B)What Would it cost for two learners to hav a lesson together?

    asked by mtano
  109. Chemistry

    How many grams of potassium phosphate must be dissolved in 3.75 Liters of water to produce a soltuion that contains 8*10^23 potassium ions?

    asked by Mary
  110. science-physics

    a boat travels in still water at 2m/s. It is rowed across a river that flows at 1m/s. Determine the resultant velocity of the boat

    asked by levi
  111. physics

    Suppose the rubber rod holds -3 pico-Coulomb at x=0 and the uncharged ball has +2 femto-Coulomb at x= 50mm, as well as -2 femto-Coulomb at x=55mm distance. What would be the electric Force applied to the ball? I used the equation F=q1q2/d^2 and did two

    asked by Anonymous
  112. English

    i not get this question which be author come back to his Orpheus allusions with question referrring to jakes dad, "what songs found their out, or had any?" what be jakes hope for his dad?

    asked by Mohammad
  113. Civics

    Which of the following was NOT a reason why a stronger central government was needed? To solve the economic problems of the United States =To limit individual liberties To deal with military matters both internal and external To make the States work

    asked by Sierra
  114. English- evaluating essay

    I have write a evaluation essay on the movie Troop 1500. So my thesis is -Taking daughters to see their mothers in jail should be a program of it's own.- I don't know if my topic sentence is correct: One reason a program should be made separate for

    asked by Taylor
  115. Math

    if a diameter of a quarter is 25 mm. what is the length of a row of quarters whose total value is $10.00?

    asked by Adam
  116. Statistics

    On standard IQ tests, the mean is 120 and the standard deviation is 18. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is less than 156.

    asked by Anonymous
  117. business

    1. Which way of asking for action carries the highest level of politeness? (Points: 5) A polite order An indirect request A question (*) An order 2. Which of the following statements most effectively applies the you-attitude? (Points: 5) "We began

    asked by sososola2012
  118. physics

    A tiger leaps horizontally from a 15.0 m high rock with a speed of 7.10 m/s. How far (in meters) from the base of the rock will it land?

    asked by jholm
  119. physics

    What is the weight of a 12 kg mass on the moon if the gravitational acceleration (g) was only .8 m/s/s?

    asked by Sally
  120. college algebra

    IF THIS WAS 1500 SQFT. WHAT WOULD IT LOOK LIKE.I have two small Yorkies that love to go outside and play, so being on a leash just doesn’t work for them. So I decided to get them a fence so they can play how they like too. I live in a townhouse, its 1600

    asked by jim
  121. organic chem

    if sulfuric acid was not added to isopentyl alcohol how would that affect the results

    asked by elle
  122. Math

    Tony lines up 5 baseballs. They are as long as his pillow. He adds 15 more balls. How long is the line?

    asked by Molly
  123. science

    what is the geometry around each carbon in ethanoic acid

    asked by lydia
  124. computer science

    I need to write a program that ask the student to enter an answer to a math problem. The user should enter two values, one at a time, and then ask for an answer. The program should display if the entered answer is correct or not and display the correct

    asked by Kathleen
  125. algebra

    there are 43 ribbions. the number of blue ribbions was 2 less than the number of white ribbions. the number of red ribbions was 3 more than the number of white ribbions.how many of each kind of ribbion was awarded

    asked by Anonymous
  126. Chemistry

    When a 77 g piece of metal with a temperature of 88 Degree Celsius is placed into 277 g of water having a temperature of 20 degree Celsius, the final temperature of the metal and water is 23.3 degree Celsius. What must be the specific heat of the metal?

    asked by Mom
  127. Chemistry

    When a 77 g piece of metal with a temperature of 88 Degree Celsius is placed into 277 g of water having a temperature of 20 degree Celsius, the final temperature of the metal and water is 23.3 degree Celsius. What must be the specific heat of the metal?

    asked by Mom
  128. Math

    Kara has 9 apples. Maria has 3 more apples than Kara. How many apples does Maria have.

    asked by Siya
  129. Com arts

    In the Book FareWell to Manzanar. What chapter did momma break her dishes?

    asked by Alyssa
  130. sociology ASAP

    EXAMPLES OF macro and micro sociology cannot be : prostitution gender inequality economy homelesness

    asked by gabby
  131. English

    why jake dislike how his father smile at his attempt and failure in physical activies? That be because he feel embarrassed?

    asked by Mohammad
  132. Drama

    My teacher wants us to think of short pantomimes that are easy. I am out of ideas. Can you give me some ideas please?

    asked by Michael Bronford
  133. history

    Every era in American history has had notable men and women who shaped their times, for better or worse. Identify one person from this week’s reading who you believe had a significant impact on the years from 1945 to 1974. This could include a president

    asked by Anonymous
  134. english

    Edit please. Take the errors out and rewrite Calligraphy is very popular amoung artists as well as among people whom are not professional artists. But who are creative for their own pleasure. The word calligraphy provides own definition. It comes from two

    asked by lagan
  135. SPELLING

    WHAT IS ACCEPT:EXCEPT::THREW I REALLY NEED HELP DO TOMORROW FREAKIN OUT

    asked by TREINEE
  136. Science

    During beta-particle emission, a neutron splits into _______? a proton and an electron two protons two electrons two neutrons

    asked by Samantha
  137. Math

    How long does it take an automobile traveling in the left lane of a highway at 70.0 km/h to overtake (become even with) another car that is traveling in the right lane at 20.0 km/h when the cars' front bumpers are initially 110 m apart? s

    asked by anonymous
  138. English

    am doing a parody project for Romeo and Juliet only ACT 5. I need to write a script for burger king or any ideas you have. I need help starting off the script. Thank You

    asked by zax
  139. math

    how to you compare 8 fractions with different denominators including improper fractions?

    asked by john
  140. math

    If the scale of a map is 1:1000,a 10cm map has an actual length of ?

    asked by Anonymous
  141. geometry

    if line cd equal 2 and line xy equal 2, prove that line cd is equal to line xy

    asked by Anonymous
  142. math

    The rectangular base of a box has a perimeter of 60cm. The base is twice as long as it is wide. Saskia plans to cover the top and bottom with coloured paper;which cost 5 cents per square centimetre. She lans to cover the other 4 faces with white paper;

    asked by Anonymous
  143. college chemistry

    Guys i really need help in these three problems. If someone could explain how to do this i would appreciate it! complete and balance the following equations 1. SO3^2- + Cu^2+ --> SO4^2- + Cu^+ 2. Cr +Cu^2+ ---> CrO4^2- + Cu^+ 3. MnO2 + Ag^+ ---> MnO4^- +

    asked by Keisha
  144. business

    1. Which way of asking for action carries the highest level of politeness? (Points: 5) A polite order An indirect request A question (*) An order 2. Which of the following statements most effectively applies the you-attitude? (Points: 5) "We began

    asked by sososola2012
  145. chemistry

    if 25.00 g of Zn reacts with 30.00 g MnO2 what mass of Zn(OH)2 will be produced?

    asked by kontoya
  146. english-personal growth

    what is a personal growth paper?

    asked by lou
  147. trig

    right triangle has an acute angle of 24.8 and an adjacent length of 145 what is the side opposite of the acute angle

    asked by lo
  148. math 12

    The world's population is 1970 was about 3.6 billion. If the population has increased at 2% each year since then, what will the world's population be in 2010?

    asked by erin
  149. AP (Honors) World History

    I need a good thesis statement for my continuity and change over time informative essay on Hinduism, but I don't know how to even start. Please help.

    asked by Dora
  150. 3 grade math

    Is a trapezoid also a parallelogram? Explain why or why not.

    asked by Dk
  151. MATH

    Find an equation of the line that is tangent to the graph of f and parallel to the given line. Function Line f(x) = 2x^2 6x – y + 4 = 0 I know i have to find derivative 1st which will be f'(x)=4x but then how to i find equation do i plug 6 in for x so

    asked by Anonymous
  152. maths

    A CIRCLE HAS EQUATION X^2 +4X + 10Y -8 =0,FIND THE EQUATION OF THE TANGENT AT (3,1)

    asked by victor.m
  153. physics

    A roller coaster (375. kg) moves from A (5.00 m above the ground) to B (28.0 m above the ground). Two nonconservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long

    asked by Anonymous
  154. college chemistry

    At a prominent state hospital, a 45-year-old woman is receiving a ‘combined modality' treatment for the initial stage of breast cancer. State the two aspects included in this treatment. State the methods by which a radiation oncologist can administer

    asked by bubby
  155. Math

    Ian has 11 stickers justinhas 3 fewer stickers then Ian.how many stickers does Justin have.

    asked by Siya
  156. English

    What be meaning of allusion to hemingway’s death? He not feel he important to family?

    asked by Mohammad
  157. English

    Why Jake spend his time try to forget everyone? That be because his family not have proper relationship with him before so they not show him love and now he not know how to love so he want to be alone.

    asked by Mohammad
  158. math

    what is equivalent fraction of 9/10 and 7/12

    asked by sarah
  159. Physics - Circuits

    Theres a circuit wired in series that has 4 resistors. 1) 10 ohms 2) 6 ohms 3) 1 ohms 4) 2 ohms Find the potential difference across the 10ohm resistor. Answer in units of V What exactly am i supposed to do to calculate this?

    asked by Anonymous
  160. Chemistry

    What will be the concentration if 52 milliters of a solution that is 12 parts per million in sodium chloride is diluted with enough water to make 97 millilters of solution?

    asked by Whitney
  161. Chemistry/Engineering

    A 25 gram sample of CT is vaporized and used to fill a 5 L container. If the pressure in the container is 1.2 atm at 27 degrees Celsius, what is the molecular weight of CT in grams per mole? I used PV=nRT and found n=.2437 mol, but how do I got to grams

    asked by Becca
  162. science

    a change in ph can change the shape of a protein. how might a change in ph

    asked by zing
  163. US History

    The battle of New Orleans A. destroyed the Creeks Indian Tribe B. forced the British to sue for peace with the US C. cause the British to evacuate Washington D. led to a surge in American nationalism E. led to the development of sectionalism in America I

    asked by Anonymous
  164. CHEMISTRY

    Write equations for the solution process when ech of the following is dissolved in water. Potassium phosphate glucose Calcium chloride 1-propanol Butanone Ammonium sulfite

    asked by Sarah
  165. Civics

    The Constitution gives sovereignty only to the _____.? A.State legislatures B.national government C.president of the United States D.State constitutions ....i need help, none of them are right?

    asked by Sierra
  166. Statistics

    For each of the following (a) indicate how many factors are included, and (b) tell how many levels there are for each factor: a) 2x2 b) 2x3 c) 2x3x2 d) 4x3 e) 4x3x2x3

    asked by Leon
  167. sociology

    what are some examples of social and cultural capital that young children experience

    asked by kelly
  168. English

    what be theme of this story? move on with life? don't look back at past? also i not understand the title of story. i before thought orpheus be someone in story but it not be anyone.

    asked by Mohammad
  169. math

    In the U.S. a date such as January 12, 2003 is written 1/12/03, but in many other countries the day and month are interchanged, giving 12/1/03. If you didn't know which system was being used, how many dates in a year would be ambiguous to you?

    asked by Tonya
  170. college physics

    what is the force applied in the direction of the wire at a point attached to the patient in a traction system if the mass applied ius equal to 5kg.?

    asked by albert
  171. Reading

    Dear Ms. Sue, No matter how hard I try, nobody knows a 6th grade definition for the word "Panning". Can you please help?

    asked by Cory
  172. English essay

    Thesis is -Taking daughters to see their mothers in jail should be a program of its own.- I don't know if my topic sentence are correct: Negative affect on the amount of extra responsibility the girl scouts take on. Girl scouts has an age limit for not all

    asked by Taylor
  173. English

    how am doing now can you help is it right (McDonalds)Romeo: How bright! What light bounces off the linoleum floors that my lover has cleaned! It is a flashlight, and Juliet is a firework! Get up, you spark and burn off the brown field which is already

    asked by zax for Mrs.SUE
  174. Math

    Can you check my work Please? Let N(t) be the number of bacteria after t days. Then N(t) = Pa^t for some constants P and a. Measurements indicate that N(4) = 5600 and N(8) = 362, 000 1. Write down the formula for N(t) using the rounded values of a and P.

    asked by Walt
  175. phl

    Do influences like culture, environment, history, and nature have a liberating or limiting effect on individual freedom? Some specific examples.

    asked by rod
  176. math help!!

    A cart carries 100 pounds of cucumbers. The cucumbers are 95% water, and during the day they lose water rapidly on a hot, dry day. After a day passes by, the cucumbers are now 90% water. How much much do the cucumbers weigh after drying out?

    asked by dindy
  177. geometry

    If the measure of angle AMD= x+2y and the measure of angle ABC= 2x-y, find the values of x and y.

    asked by Malika
  178. Chemistry

    How could you prepare a buffer if only acetic acid, HCl and NaOH are available? If you must have a weak acid and a conjugate base for a buffer, if the conjugate base is not available, how could one generate it? This makes no sense to me. Maybe I am

    asked by Wendy
  179. chemistry

    a bird is flying around the world at a rate of 88ft/sec,how many days will it take to complete this journey?

    asked by jen
  180. physics

    A tiger leaps horizontally from a 15.0 m high rock with a speed of 7.10 m/s. How far (in meters) from the base of the rock will it land? so using the equation h=1/2 gt^2 and i put in 15 for h and g is 9.8 so i solve for t. is this right and when do i use

    asked by j
  181. Intermediate Algebra

    The perimeter of a triangle is 48 centimeters. The longest side is 2 centimeters less than the longest side. Find the lengths of each side of the triangle.

    asked by M
  182. chemestry

    if 40 grams of water are produced when 30 grams of ethane is burned what is the % yields

    asked by m
  183. ms. sue

    ms. sue you read the book the glass castle a memoir by Jeannette Walls?

    asked by Mohammad
  184. algebra. help!!

    United States citizens living in Switzerland must pay taxes on their income to both the United States and to Switzerland. The United States tax is 28% of their taxable income after deducting the tax paid to Switzerland. The tax paid to Switzerland is 42%

    asked by sandy
  185. Calculus

    y=cos(square root of 4t+12)

    asked by Jovante
  186. Decorative Features

    4. Which one of the following is rarely used for underwear? A. Faced-slit opening C. Bound opening B. Placket D. Zipper 5. When inserting a zipper, it’s important to A. insert it at the earliest possible sewing stage. B. stretch the fabric to match the

    asked by mamamia
  187. Civics

    Since the 1970s, the Supreme Court has interpreted the Equal Protection Clause as prohibiting the government from making "_____" distinctions between people. unreasonable =racial reasonable unnecessary

    asked by Sierra
  188. Math please help

    Find an equation of the line that is tangent to the graph of f and parallel to the given line. Function Line f(x) = 2x^2 6x – y + 4 = 0 I know i have to find derivative 1st which will be f'(x)=4x but then how to i find equation do i plug 6 in for x so

    asked by Anonymous
  189. English

    Jake tell that some families grow like trees.... to what does he compare his own family? what be im plied by this comparison? Do he express this symbolic meaning explcitly ? it be that he tell his family not close with each other. everyone be far apart

    asked by Mohammad
  190. Socioloy

    What are some exampls of latent functions in regards to health clubs? Please help

    asked by anonymous
  191. English

    What can be understood frm the fact that jake’s daughter faces the trail as though waiting? i not get this. it be that she going to know about jake's family also?

    asked by Mohammad
  192. Chemistry

    When a 77 g piece of metal with a temperature of 88 Degree Celsius is placed into 277 g of water having a temperature of 20 degree Celsius, the final temperature of the metal and water is 23.3 degree Celsius. What must be the specific heat of the metal?

    asked by Mom
  193. math

    In the space below, indicate the values stored in the variables A,B,C, and D for the program. Enter your answers by typing in the value of A for Answer 1, value for B in Answer 2 and so on. Do this for all four variables.(8 points) 10 DATA 2,3,4,5 20 READ

    asked by Anonymous
  194. CAN ANYONE HELP WITH MATH

    HELP PEOPLE WHO NEED HELP WITH MATH PLEASE

    asked by Anonymous
  195. biology

    Can someone please explain to be the concept of - Rate of exchange is proportional to a cells surface area and ... the amount of exchange material is proportional to a cell's volume. (the topic we are learning is called "Animal form and function")

    asked by martha
  196. Finance

    What is the economic value today of each of the following payment streams if money can earn 7.5%?(Note that the two streams have the same total nominal value.) a. $1000, $3000, and $2000 due in one, three, and five months, respectively. b. Two $3000

    asked by Daniel
  197. algebra

    A pentagon has a perimeter of 630 inches.What is the length of its sides?

    asked by Anonymous
  198. Calculus

    What is the derivative of 6/x?

    asked by Jake
  199. English

    Jake tell that in long ago when his father offer things in same tone as question he ask which be “You , comin jake?, he regularly refuse. Why he do this? That be because he giving orders not asking nicely?

    asked by Mohammad
  200. Human Body

    Identify one factor that can decrease and one factor that can increase your lympathic and immune systems' abilities to fight off illness and disease

    asked by Lynn
  201. physics

    an 80 kg man rides in a car which makes a turn. he moves along a curve with a radius of 20m at a constant speed of 20m/s. how much centripetal force acts on him?

    asked by teri
  202. Math lit

    Add the missing terms so that these quantities are in proportion. _:11:_and 11:121:11. And this one 26:52:13 and _: _:1

    asked by mavuso
  203. physics

    an 80 kg man rides in a car which makes a turn. he moves along a curve with a radius of 20m at a constant speed of 20m/s. how much centripetal force acts on him?

    asked by teri
  204. Bio

    Does hyaline cartilage have fibers in it?

    asked by Rebekah
  205. Chemistry

    How many grams of potassium phosphate must be dissolved in 3.75 Liters of water to produce a soltuion that contains 8*10^23 potassium ions?

    asked by Whitney
  206. English

    I have write a evaluation essay on the movie Troop 1500. So my thesis is -Taking daughters to see their mothers in jail should be a program of it's own.- I don't know if my topic sentence is correct: One reason a program should be made separate for

    asked by Taylor
  207. English

    jake say that aftr today he have to start making some phone calls or have phone removed. what he mean? that mean that he have to face people or be lonely forever?

    asked by Mohammad
  208. Reading

    What does it mean to say "I don't want to sound to hostile"???? Please answer in small words so that I can understand, sorry if that sounds rude but I am dyslexic.

    asked by Susana
  209. CHEMISTRY

    What will be the concentration if 52mL of a solution that is 12ppm in sodium chloride is diluted with enough water to make 97mL of solution?

    asked by Sarah
  210. civics

    _____ States supported the _____ Plan, which called for a bicameral legislature in which States would be represented according to their population. Slave, Three-Fifths =Larger, Virginia Northern, Connecticut Smaller, New Jersey

    asked by Sierra
  211. Spanish - beginner

    Does it sound right? Tengo un primo como vive en España, Madrid, cerca Puerta del Sol. Es mi primo Fabian y tiene diecinueve años. Es de España pero no habla español. Fabian te gusta esciar. Mi primo ha tenido dos gatos azules pero hemos morido ayer

    asked by Samir
  212. Natural Science

    Where do the shortest wavelenghts accur ?

    asked by Steven
  213. Reading

    what is an easy definition for the word "accent"?

    asked by Susana
  214. Algebra 1

    Whats: -3 < j + 2 < 7

    asked by Jena
  215. chemistry

    Q1) For the reaction, A ¨ B, ƒ¢H‹ = +11.00 kJ mol-1 and Keq is 12.50 Calculate i) ƒ¢G‹ and ii) ƒ¢S‹ at 25 ‹C. [0 ‹C = 273.15 K; R = 8.314 J K-1 mol-1]

    asked by jenny
  216. English

    what be painful realization made by old man at end of his life? he not able to give love? i thought he not die, he just walk inside home.

    asked by Mohammad
  217. math

    i tried to simplify 10/8 i got the answer of is 2/4 am i correct

    asked by mary
  218. math

    If there are 75 animals in a pet store and a pie graph shows 16% are cats how many of the animals are cats

    asked by Emily
  219. English

    In last paragraph how author emphasize lack of love in old man? i not get this. i also not get ending which be The old lady was waiting for us on the path. He walked straight toward her voice. I felt the pinch of her words and fell behind. The man walked

    asked by Mohammad
  220. math

    how can i make a fraction into a pound

    asked by mary
  221. grammar

    what is the direct object in the head of the stables often mistreated agba and the young colt

    asked by tyler
  222. Spanish - beginner

    How do I say: He always smells like garlic. Is it: Siempre huele como ajo. /sorry for my english

    asked by DAME
  223. English

    When do I use had have had has had had

    asked by Anonymous
  224. Civics

    Which is NOT true of the segregation laws passed after the Civil War? =They prohibited interracial marriage. They did not only apply to blacks. They were only in the South. All of these statements are true.

    asked by Sierra
  225. Math Help Desperate...

    Thank you very much for answering the candy question last night.

    asked by TO: Damon
  226. Math Help Desperate...

    Thank you very much for answering the candy question last night.

    asked by TO: Reiny
  227. math

    A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. How many are not using any of the three? 35 said they drove alone. 24 rode in a carpool. 33 rode public transportation. 5 used both carpools

    asked by dee
  228. Science!

    When many gene pairs work together, this is called......? Help!!!!! Please!!!!!

    asked by Anonymous
  229. calculus

    Find the surface area generated when y = (x^3/12) + (1/x), from x=1 to x=2 is rotated around the x-axis.

    asked by Anonymous
  230. Physics

    Pepper pulls a 20.0 kg object along the floor accelerating at 2 m/s/s, and μ = .2. How much work has he done while pulling the string 5.0 m? If it takes her 1.0 seconds, how much power has she used? If 1.0 kcal = 4184 J, and an Oreo has 50 kcal, how many

    asked by Sara
  231. Physics

    A block (m = 38.0kg) sits on an inclined plane of 38 degrees. If there is no friction,k what magnitude force is needed to keep the block from sliding? If there is friction, with coefficients 0.580 and 0.630, what is the maximum magnitude force that can be

    asked by jane
  232. Math

    Explain how you can use division by a fraction to figure out how many 4-oz are in 3 lbs

    asked by Georgette
  233. statistics

    Select a sample of 20 individuals and the test the hypothesis =225 for IQ level. Use a=0.05

    asked by Anonymous
  234. math

    Open boxes are being designed to hold mail for the post office. The boxes will be made to have the greatest possible volume. Each box will be made from a sheet of metal that measures 15 inches by 12 inches. They will be formed by cutting and removing a

    asked by Frank
  235. Calculus

    For each function, find the derivtive f'(a) for given value of a f(x) = sqrt(x+1), a=0

    asked by Jake
  236. CHEMISTRY

    Guys i really need help in these three problems. If someone could explain how to do this i would appreciate it! complete and balance the following equations 1. SO3^2- + Cu^2+ --> SO4^2- + Cu^+ 2. Cr +Cu^2+ ---> CrO4^2- + Cu^+ 3. MnO2 + Ag^+ ---> MnO4^- +

    asked by Keisha
  237. Algebra/ Precal

    Sales= S(thousands) t=yrs S=100(1-e^(kt)) k=0.035 How many units were initially sold? How many were sold after 10yrs?

    asked by HELP ASAP
  238. 3grademath

    Can a rectangle also be a rhombus? Explain

    asked by Dk
  239. algebra

    How can you tell the difference between independent, dependent, and inconsistent

    asked by Jodi
  240. Math

    What Is $90 For 40 minutes Is How Much For 60 Minutes? What Is The Answer To This Question.

    asked by Alaric
  241. education

    What is meant by the term global community? Give an example of how you can participate in the global community as a classroom teacher.

    asked by danie
  242. education

    Do you feel that technology helps or hinders parents in becoming more involved in their students' education? Why?

    asked by danie
  243. English

    what be jakes opinion of honesty of adults? adult not be honest enough to admit how they feel?

    asked by Mohammad
  244. Economics

    If the federal government enacts a tax on a monopoly, how would you expect the additional tax to affect the following: 1. Output produced by the monopoly 2. Prices charged by the monopoly 3. Profits of the monopoly

    asked by Nicole
  245. physic

    what is thermometer

    asked by shaka
  246. English

    I need to write two short paragraphs. The first should be a description of the uses of a mobilie phone (I use my mobile phone to ......... It has got..... /functions ) The second should contain useful expressions needed when buying a mobile phone? Could

    asked by Henry2
  247. Earth Science

    What is the landform of the Grand Teton?

    asked by Joni
  248. english analogies

    superman is to metropolis as --- is to gotham city

    asked by Anonymous