Newest questions and responses by Katherine
  1. Chemistry

    60cm3 of hydrogen diffused through a porous membrane in 10minutes.The same volume of gas G diffused through the same membrane in 37.4 minutes .Determine the relative molecular mass of G.(H=1)

    asked on January 4, 2019
  2. math

    37.52 rounded to the nerast whole

    asked on December 5, 2018
  3. Math

    A company paid $110,000 for a new 18-wheeler. When it is 9 years old it will be worth $20,000. Using straight-line depreciation, the value of the trick in dollars, V, is a linear function of its age in years, n. Find the function and the value when the

    asked on August 22, 2018
  4. Science

    Hi, so there is a Japanese Exchange Science Program and i need a science experiment for my application. The experiement has to be done in America and then in Japan. I have been searching online for ideas but nothing seems to come up. Will someone help me

    asked on June 19, 2018
  5. History

    Hi, I am doing a civics project and right now I have to find an article about firearms that isn't biased and represents two sides. Can someone help find an article?

    asked on May 3, 2018
  6. math

    A store sells two types of nut mixtures. The standard mix contains 100 grams of cashews and 200 grams of peanuts and sells for $2. The deluxe mix contains 120 grams of cashews and 40 grams of peanuts and sells for $2.50. The store has 15kilograms of

    asked on April 20, 2018
  7. Physics

    So tomorrow I have a presentation about the universal law of gravitation and my partner did not work! At all! I'm really upset right now and I'm having trouble with understanding about the orbit of the moon. The slide has to be short and simple and I dont

    asked on March 14, 2018
  8. Literature

    Since I am working on a project based on the poem "here" by Aracelis Girmay, how do people usually feel when reading this? What mood does it create for the readers?

    asked on March 1, 2018
  9. math

    I was trying to solve for X in the equation 4/3 - 4/x = 3x-2/ 3x. I got -1 but I know the answer isnt right. Can someone help me fix my mistake? Thank you

    asked on February 27, 2018
  10. Literature

    I am confused in how hellen keller and minnie riperton correlate with the poem "here" by aracelis girmay. So can someone please help me understand that? Thank you (:

    asked on February 26, 2018
  11. Literature

    Hi, I am working on a project I chose for the poem "here" by Aracelis Girmay and I dont understand one line which is " I am so worried for Jacques Cousteau. I do not want him to get eaten." If someone can explain it to me, it would be great! Thanks.

    asked on February 25, 2018
  12. Literature

    Hi, I am currently working on a project for this poem: Because I wanted to write a poem that would make me push away from the table & say Damn, & turn my face, even though I never say that word. Say Look, this is your saddest thing. That’s all. Your

    asked on February 24, 2018
  13. Algebra and Geometry

    Hi I have a question about my homework but my teacher doesn't explain to us very well so if someone can help me out.. iw ould appreciate it. Thank you. Find the quotient and remainder for x^5-x^4+7x^3-7x^2+5x-10/ x-1 thank you so much (:

    asked on February 16, 2018
  14. math

    What is the base 7 representation of the number 275? 21201 is the base 3 representation of what number? I'm having trouble with both questions. Can someone help me out? I tried using the internet but I was still confused.

    asked on January 31, 2018
  15. Please Help Mc one question

    Which of the following is not considered part of the "golden age" of microbiology? A.First artificial vaccine is developed B.Gram stain is devised C, Viruses are defined D.all of the above Please do not guess I chose C but i think it was wrong

    asked on January 9, 2018
  16. MC science history

    Which of the following is not considered part of the "golden age" of microbiology? A.First artificial vaccine is developed B.Gram stain is devised C, Viruses are defined D.all of the above Who determined Archaea are the third domain of life? A.Carl Woese

    asked on January 9, 2018
  17. History

    Why were the bill of rights known as dangerous?

    asked on January 4, 2018
  18. History

    What does the constitution have to do with the concepts of rights, federalism, and division of powers?

    asked on January 3, 2018
  19. History

    What is the concept of rights and how does the constitution and bill of rights treat it?

    asked on December 31, 2017
  20. Literature

    I am doing a collage about Fahrenheit 451 and basically we have to make a collage with chunks of writing about quotes that relates back to our proposal. Would It be okay if someone looked at it? Proposal: I am interested in how the government doesn’t

    asked on December 31, 2017
  21. Literature

    What is another way the government in Fahrenheit 451 is not giving people choice or freedom other than not being able to read books.

    asked on December 30, 2017
  22. Algebra and Geometry

    Can someone xplain what the golden ratio is and how we know that it MUST be irrational. What does this tell us about our Penrose tilings?

    asked on December 21, 2017
  23. Literature

    I just have a stupid question.. Does the phoenix in Fahrenheit 451 symbolize any type of freedom? Because I searched online, but it mostly says rebirth. But could it?

    asked on December 20, 2017
  24. Theater

    I have to write a short silent play and I'm having trouble coming up with ideas. Can someone help? Its suppose to be in this format. 1. reveal information 2. raise the stakes somehow 3. have the character do something irrevocable s/he cant take back 4. top

    asked on December 4, 2017
  25. math

    Suppose I use a scale on my map where every 3 inches on my map represents 5 miles. If a region on my map has an area of 45 square inches, what is the area of the actual region it represents? hi I need help with this question, I don't know what to do.

    asked on November 29, 2017
  26. Algebra and Geometey

    Let v be the vector and let w be the vector . What is ||v||? Can someone help me, I am having trouble with the question. Thank you!

    asked on November 8, 2017
  27. history

    What is the Columbian Exchange and how was it positive advantage?

    asked on October 31, 2017
  28. Math

    Triangle ABC has the side of lengths of 6,8,9. HGI is similar to ABC which has the side length of 12, 8, and its missing one length. What is the missing number. Can someone explain how to find that number.

    asked on October 25, 2017
  29. Literature

                        Self-Interview "I have always understood that's why I have been so frequently called 'a revolutionist.' It sounds as I have done some crime! Well, it may be the American black man does need to become involved in a real

    asked on October 17, 2017
  30. Literature

                        Self-Interview "I have always understood that's why I have been so frequently called 'a revolutionist.' It sounds as I have done some crime! Well, it may be the American black man does need to become involved in a real

    asked on October 17, 2017
  31. Literature

    "I have always understood that's why I have been so frequently called 'a revolutionist.' It sounds as I have done some crime! Well, it may be the American black man does need to become involved in a real revolution. The word for " revolution" in German is

    asked on October 15, 2017
  32. Algebra and Geometey

    Hi can someone explain what is meant by the inverse of a transformation

    asked on October 12, 2017
  33. history

    I have an essay about symbolic occupation, but first I am suppose to know how did religion shape symbolic occupation but the text we have is very complicated to understand.

    asked on October 10, 2017
  34. history

    I have an essay about J.H Elliott and I have to write about his arguments he made about symbolic occupation. Can someone help me what was his arguments.

    asked on October 9, 2017
  35. AP Stats

    Bolivian adult females are much shorter than US females although the standard deviation of their heights is about the same at 2.3 inches. Only 4.1% of Bolivian females are at least five feet tall. What is the mean height of adult Bolivian women assuming

    asked on September 25, 2017
  36. English

    Why does Yoni think the Arab he finds is perfect for his film? It was in Bethlehem, actually, that Yonatan found his Arab, a handsome man who used his first wish for peace. His name was Munir; he was fat with a big white mustache. Superphotogenic. It was

    asked on September 9, 2017
  37. Englsih 10

    Write a paragraph that answers the questions below. Include two supporting details or examples. In the literature of Americas, Kimberly Koza writes by discovering the literature of our neighbors we may also learn about ourselves. Keeping this quote in

    asked on August 23, 2017
  38. Math: equations

    Samantha has triple the number of braclets as Ruth. Ruth has x braclets. All together, they have 48 braclets. Find the value of x.

    asked on March 16, 2017
  39. Math Statistics

    "In the United Kingdom's Lotto game, a player picks six numbers from 1 to 49 fir each ticket. Rosemary brought one ticket for herself and one for each of her four adult children. She had the lottery ticket. When the sic winning numbers were drawn, Rosemary

    asked on February 7, 2017
  40. Physics

    A car is backing up at a rate of 10km/hr. If the driver looks through his rear-view mirror, how fast does a tree, which is behind him, appear to approach him?

    asked on October 27, 2016
  41. SS

    How is the number of Electoral College seats per state determined? (1 point) by the number of party delegates assigned to the state by the total number of House and Senate representatives by the traditional number assigned under the 12th Amendment by

    asked on October 5, 2016
  42. Science

    If a ball is thrown upward on Mars with an initial velocity of 10.0 m/s and lands 1.50 m below its launch point 5.54 seconds after it is thrown , what is the local acceleration due to gravity one Mars .... Plzzzzzzzzz answer it's really important I have to

    asked on September 10, 2016
  43. Physical science

    To pass a slow vehicle within the length of the passing lane roger got up well over the speed limit . He then spotted a police cruiser coming around the corner and hit the brakes . If he braked at 6 m/s^2 , and it took him 1.50 seconds to get back to 40

    asked on September 10, 2016
  44. Algebra

    True or false? Negative numbers are closed under addition. Give a counterexample True or false? Prime numbers are closed under subtraction. Give a counterexample True or false? Natural numbers are closed under division. Give a counterexample

    asked on August 15, 2016
  45. math

    So i was going over a problem that i didn't understand which is What is the slope of the function described in the table below? x I y 0 | -3 2 | -2 4 | -1 6 | 0 the choices were f) -3 g) 1/2 h) 2 J) 3 i know that the answer is g because my family told me

    asked on August 12, 2016
  46. Ela

    I need an article that's local (new york city) and it has to have at least 1000 words and published in a major newspaper. Can someone help me find an article?

    asked on August 9, 2016
  47. Math

    Which of the following is equivalent to the expression 8 to the -5 power times 8 to the second power A) 1/8 to the 7 power B) 1/8 to the 3 power C) 8 to the 3 power D) 8 to the 7 power I was in between b and c but im pretty sure its c is it?

    asked on August 8, 2016
  48. Chemistry

    How much solid ammonium chloride would be needed to make 100 mL of a 0.5M solution?

    asked on May 18, 2016
  49. Language Arts

    Which of the following sentences contains a dependent clause? a) my mother, who never wastes anything, rinsed and saved the take-out boxes b) we were running late and, we had to skip stopping by the post office. c) I had never been to New York before this

    asked on March 10, 2016
  50. Language Arts

    Which of the following sentences contains a dependent clause? a) my mother, who never wastes anything, rinsed and saved the take-out boxes b) we were running late and, we had to skip stopping by the post office. c) I had never been to New York before this

    asked on March 10, 2016
  51. Algebra 1

    1. A company is deciding whether or not to hire a new worker. The company must pay the worker hourly and cover a daily cost for insurance. The cost to pay an hourly worker for one day is represented by the function y = 8x + 25, where x is hours. What is

    asked on March 8, 2016
  52. Language Arts

    What is the pattern of stressed and unstressed syllables in this line: The sun should drop its greatest gold

    asked on March 2, 2016
  53. math

    The classroom has 4 desk each row. there are 5 rows. how many desk are there in the classroom.

    asked on January 7, 2016
  54. Math

    Which statement is true? A. Every rational number is a square root. B. Every irrational number is a fraction. C. Every rational number can be written as a fraction. D. Every square root can be written as a whole number I go with C

    asked on November 12, 2015
  55. chemistry

    How many grams of lithium hydroxide are needed to remove 920 g of carbon dioxide in the air

    asked on August 27, 2015
  56. math

    At a popcorn factory, for every kilogram of popcorn that is popped, 100 grams are not popped. The factory pops 5 kilograms every day. What is the total weight in kilograms, of the unpopped corn in the month of april?

    asked on August 20, 2015
  57. chemistry

    please help !!! You are given an organic solid which reacts with most organic solvents. How would you obtain the IR spectrum of it?

    asked on April 26, 2015
  58. AP Chemestry

    The question is as follows: went wrong, I'd really appreciate it!

    asked on April 21, 2015
  59. physics 1

    444g mass vibrates according to the equation x = 0.348 sin (5.82 t) where x is in meters and t is in seconds. Determine the total energy. Determine the kinetic energy when x is 14.0cm. Determine the potential energy when x is 14.0cm.

    asked on December 13, 2014
  60. physics 1

    Two isolated masses, M1 = 2.20 kg and M2 = 589 kg are initially rest, a distance d= 161 cm apart. Their gravitational attraction is the only force acting. Calculate the time it takes for M1 to move from that distance to 159 cm from M2. Assume that M2 does

    asked on December 12, 2014
  61. Physics

    A bullet of mass m= 2.50×10-2kg is fired along an incline and imbeds itself quickly into a block of wood of mass M= 1.60kg. The block and bullet then slide up the incline, assumed frictionless, and rise a height H= 1.45m before stopping. Calculate the

    asked on December 12, 2014
  62. Chemsitry

    What courses should you take in each grade 9,10,11,12 to help you become a pharmacologist. i need courses for each grade

    asked on December 11, 2014
  63. Biology

    what is the vascular system of the lilac flower. i tried finding some sites. some sites would help me. PLease!

    asked on December 5, 2014
  64. biology

    Describe the vascular system and functions of each component of the Lilac flower i tried to find some sites, but i cant find in any. So any sites would help as well

    asked on December 3, 2014
  65. Please help Damon

    need help on a lab here are the results Mass of empty beaker and glass rod(62.62) Mass of beaker, glass rod, hydrated copper sulfate(66.02) Mass of beaker, glass rod and anhydrous copper sulfate(65.04) Mass of hydrated copper sulfate(3.4) Mass of anhydrous

    asked on December 1, 2014
  66. Chemistry 11

    So I did a lab determining the chemical formula of a hydrate. We had to find the molecular formula of a hydrate of copper (2) sulphate, CuSO4 .xH2O. My observation table looks like this: Mass of clean, dry test tube: 21.6g Mass of test tube + hydrated

    asked on November 18, 2014
  67. Chem 11

    So I did a lab determining the chemical formula of a hydrate. I really just need somebody to check this over for me. We had to find the molecular formula of a hydrate of copper (2) sulphate, CuSO4 .xH2O. My observation table looks like this: Mass of clean,

    asked on November 18, 2014
  68. physics

    If each of the three rotor helicopter blades is L = 3.69m long and has a mass of m = 159kg, calculate the moment of inertia of the three rotor blades about the axis of rotation.

    asked on November 11, 2014
  69. physics

    The distance between a hydrogen atom (m = 1.0u) and a chloride atom (m = 35.5u) in the HCl molecule is 1.27×10-10m. How far from the hydrogen atom is the center of mass of the molecule?

    asked on November 11, 2014
  70. Chemistry

    A generic solid, X, has a molar mass of 77.7 g/mol. In a constant-pressure calorimeter, 31.2 g of X is dissolved in 289 g of water at 23.00 °C. The temperature of the resulting solution rises to 24.40 °C. Assume the solution has the same specific heat as

    asked on November 2, 2014
  71. physics

    Displacement vectors A,B,and C add up to a total of zero. Vector A has a magnitude of 1550 m and a direction of 24.1° north of east. Vector B has a direction of 41.0° east of south, and vector C has a direction of 33.4° north of west. Find the

    asked on October 30, 2014
  72. HEALTH

    The heart is a _____ that provides the force necessary to circulate the blood to all the tissues in the body. A. Skeletal pump B. Autonomous pump C. Muscular pump D. Systemic pump My answer would be C. i think that's right...

    asked on October 8, 2014
  73. physics

    What is the acceleration of a car going from 3.0 x 101 km/hr to 1.20 x 102 km/hr in 3.0 x 101 sec?

    asked on October 3, 2014
  74. Aviation #2

    what accident investigation / forensic methods are used in aviation?

    asked on August 25, 2014
  75. Aviation

    What procedures and / or methods are recognized within the Aviation industry?

    asked on August 25, 2014
  76. Investigation Domain Contexts

    What procedures and methods are prescribed/recommended in the Aviation domain?

    asked on August 25, 2014
  77. science

    Air pressure at the surface of a fresh water lake near sea level is about 10^5 N/m2. At approximately what depth below the surface does a diver experience a pressure of 3.0 e5 N/m2?

    asked on July 1, 2014
  78. Math

    Kaylee got a 15% raise. She now earns $23 an hour. How much did she earn before the raise?

    asked on April 12, 2014
  79. Math

    What is the maximum value of the function y= 18/x^2-9 over the interval -3

    asked on March 30, 2014
  80. Science

    Which statement summarizes water quality issues in China

    asked on March 24, 2014
  81. Chemisty

    a)What is the [Ca2+] when 100mL of .05M CaCl2 is added to 100mL of .10M K2SO4? b) What is the [SO42-] for part a? c) write the Ksp expression for CaSO4 d)Will a precipitate form in the solution from part a)?

    asked on March 20, 2014
  82. Math

    What is 3/8=4m-2 over _____ 12

    asked on March 20, 2014
  83. history

    During the 1950s, the advent of _______ created the largest and fastest-growing impact on American society. A. television. B. suburban communities C. educational reform D. fundamentalist religion. I think it's D. Am I correct?

    asked on March 6, 2014
  84. Math

    Tiffany bought 2/5 kg of cherries. Linda bought 1/10 kg of cherries less than Tiffany. How many kg of cherries did they buy altogether?

    asked on January 22, 2014
  85. Math

    Express fraction 9/4 as the sum of two or three equal parts. Rewrite the problem as a multiplication equation.

    asked on January 9, 2014
  86. algebra 1

    parallel and perpendicular lines write the slope-intercept for an equation of the line that passes through the given point and is perpendicular to the graph of each equation (4-2) y=1/2 +1, ( 2,-3) y= -2/3+4 (-8,-7) y=-x-8 (6,-2) y=-3x-6

    asked on January 9, 2014
  87. Chemistry

    A reaction: A(aq) + B(aq) C(aq) has a standard free-energy change of –4.65 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively?

    asked on November 24, 2013
  88. Chemistry

    Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12× 10–12. What is the solubility (in mol/L) of silver chromate in 1.4 M potassium chromate aqueous solution? In 1.4 M silver nitrate aqueous solution? In pure water?

    asked on November 12, 2013
  89. Chemistry

    The Ksp of CaSO4 is 4.93× 10–5. Calculate the solubility (in g/L) of CaSO4(s) in 0.300 M Na2SO4(aq) at 25 °C

    asked on November 12, 2013
  90. human resource

    The company has seven department stores in your city. One of your biggest problems is adequately training new salesclerks. 1. Design a three-day orientation/training program for new salesclerks. to be used. 2. Specify what methods could be used to evaluate

    asked on October 15, 2013
  91. Need Help with Math?

    1. Translate P(4,0) right 3 units and up 5 units. Give the coordinates of the image point. (-5,1) (1,-5) (5,7) (7,5) 2. Point A(6, -2) is reflected over the x-axis. Write the coordinates of A'. 6,2 6,-2 -6,2 -6,-2

    asked on October 11, 2013
  92. Chemistry

    Phosphorus pentachloride decomposes according to the chemical equation PCl5(g) -----> PCl3 (g)+ Cl2(g) Kc= 1.80 at 250 degrees C A 0.206 mol sample of PCl5(g) is injected into an empty 3.30 L reaction vessel held at 250 °C. Calculate the concentrations of

    asked on September 30, 2013
  93. Math

    Shelly compared the number of oak trees to the number of maple trees as part of a study about hardwood trees in a woodlot. She counted 9 maple trees to every 5 oak trees. Later in the year there was a bug problem and many trees died. New trees were planted

    asked on September 19, 2013
  94. Math Help? Check my answers.

    Simplify 6 x 3 divide 3 - 1. Pre-Algebra? Answers: 2 3 5 6 My answer: 5

    asked on August 20, 2013
  95. psychology

    Nelda is fearful of public places and has managed to stay "at home" for the last three years. She and her therapist have developed a strategy. During the first week, she will go to the front door and open it and look outside. If she can remain calm, the

    asked on July 25, 2013
  96. psychology

    26. Emily and her mother have entered a new place. There are toys on the floor to play with, but no one else is in the room. After a few months on her mothers lap, Emily begins to move toward the toys and is soon playing happily while her mother reads a

    asked on July 25, 2013
  97. psychology

    25. Teenage mothers who are accustomed to existing on hamburgers, French fries, and Cokes need to consider the nutritional needs of the child. Research has shown that a poor diet can _______________. 
A. restrict the development of eye and hair

    asked on July 25, 2013
  98. Psychology

    19. If Paul and Rita are exposed to erotic photographs of the opposite sex, it can be expected that _______________.  
A. Rita will report significantly less arousal than Paul
B. Paul will report significantly less arousal than Rita
C. the

    asked on July 25, 2013
  99. psychology

    15. Maria is a Hispanic female, Natasha is a Black female, and Joan is a White female. Each has a high school level education but no work . Statistics show that ..  
A. Natasha will earn less than Maria
 B. Joan will earn less than Natasha

    asked on July 25, 2013
  100. Psychology

    16. Greg and Lydia have been married three years. Both hold executive positions in large corporations and are well respected in their fields. Last January, they were thrilled with the arrival of their first child. Lydia returned to her same position after

    asked on July 25, 2013


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