Most popular questions and responses by kevin
  1. writing

    Can someone please check my answers which of the following would always require a citation in a research paper? thesis statenment an anecdotal experience a quotation (answer) a humorous statement Which of the following shows the correct parenthetical

    asked on April 1, 2012
  2. Social studies help PLEASE

    Which of the following factors helped trade to thrive during the Roman empire? Select all that apply. A. peace throughout the empire B. a shared religion throughout the empire

    asked on September 14, 2018
  3. geometry

    The trapezoids are similar. The area of the smaller trapezoid is 564m^2. Find the area of the larger trapezoid to the nearest whole number. The smaaler trapezoid is 24m, and the larger trapezoid is 57m. Possible answers: 576m^2--3,249m^2--3,181m^2--14m^2

    asked on April 8, 2012
  4. physics

    If a simple machine provides an increased output force, what happens to the output distance? Can someone please help

    asked on April 11, 2012
  5. physics

    A spring gun shoots out a plastic ball at speed v0. If the ball's speed is increased by a factor of 2, what distance must the spring have been compressed?

    asked on November 18, 2016
  6. Spanish

    ESTRUCTURA | 13.1 The subjunctive with verbs of emotion Emociones Completa cada oración con la forma correcta del verbo apropiado de la lista. Usa cada palabra sólo una vez The words in () are my guess. I need help with clarification and spelling

    asked on July 3, 2012
  7. english

    Can someone check my work PLEASE.. Which of the following is not a strategy for revising your paper? Check for redundant language. Remove overly complicated language. Get rid of euphemisms and clichés. None of the above (my choice) Choose the correct word

    asked on March 29, 2012
  8. chemistry

    In part B of my question, I was asked calculate the number of atoms in 0.615 mol of 13C (mass number of this Carbon is 13). I received the correct answer of 3.70E23 atoms. However, I do not know how to do Part C of my question, which asks "Based on your

    asked on September 16, 2012
  9. Statistics

    The Jones family was one of the first to come to the U.S. They had 9 children. Assuming that the probability of a child being a girl is .5, find the probability that the Jones family had at least 5 girls.

    asked on October 1, 2017
  10. Geometry

    A surveyor sights the far bank of a river at an angle of 110˚ to the near bank. She then moves 75 feet upriver and sights the same point on the far bank of the river at an angle of 150˚. What is the shortest distance across the river?

    asked on March 4, 2019
  11. geometry

    Describe the image of D first reflected across line l then across line m. You have the letter D then a line up and down L then a space and then a line up and down M. Not sure how to describe the image.

    asked on March 13, 2012
  12. Chemistry - Stoichiometry

    16.2g of magnesium reacts exactly with 25.3g of fluorine to produce magnesium fluoride, the only product. How many grams of magnesium fluoride could be produced from the reaction of 10.5g of magnesium with excess fluorine. This is simple if you use

    asked on August 25, 2005
  13. geometry

    Is one flag a translation of the other, or a rotation image? Please explain looks like the flag is the same above the line as it is below the line. I think translation but not sure how to explain.

    asked on March 13, 2012
  14. Statistics

    A marketing research firm wishes to determine if the residents of Caldwell, Idaho, would be interested in a new downtown restaurant. The firm selects a simple random sample of 120 phone numbers from the Caldwell phone book and calls each household. Only 62

    asked on November 9, 2015
  15. mat h

    ms. buxx invested a total of $2000 in two savings accounts. The first account pays 3% interest per year and the second account pays 5% interest per yera. If the interest from both accounts totals $84 per yera, how much is invested in each account?

    asked on January 17, 2011
  16. geometry

    find the image vertices for a dilation with center (0,0) and a scale factor of 4

    asked on March 13, 2012
  17. physics

    Josh starts his sled at the top of a 2.0 m-high hill that has a constant slope of 25 degrees . After reaching the bottom, he slides across a horizontal patch of snow. The hill is frictionless, but the coefficient of kinetic friction between his sled and

    asked on March 7, 2012
  18. geometry

    Find the area of the rhombus. Leave your answer in simpliest radical form. Looks like kite the left sied top corner is 60 degrees and the bottom right corner is 6. Possible answers are: 12sqrt3--36sqrt6--72--72sqrt3 Could someone please help.

    asked on April 8, 2012
  19. Physics

    An electron is projected with an initial speed of (1.6x10^6 m/s) into the uniform field between two parallel plates. Assume that the field between the plates is uniform and directed vertically downward, and that the field outside the plates is zero. The

    asked on February 5, 2013
  20. Physics

    A car comes to a bridge during a storm and finds the bridge washed out. The driver must get to the other side, so he decides to try leaping it with his car. The side the car is on is 19.5m above the river, while the opposite side is a mere 1.6m above the

    asked on March 7, 2015
  21. grammar punctuation

    Fine the error in punctuation or capitalization 1. "After you've rested," Frank said, "please help me move these boxes." "Can we wait until later?" asked Emily. "I have a lot of homework." "It won't take very long." replied Frank. (my choice) Emily told

    asked on April 18, 2012
  22. Chemistry

    For the reaction HCONH2(g) -->

    asked on May 30, 2018
  23. Chemistry

    If a 45.3-g sample of potassium nitrate is dissolved in enough water to make 225 mL of solution, what will be the molarity?

    asked on February 2, 2012
  24. calculus

    1)A function g is defined for all real numbers and has the following property: g(a+b) - g(a) = 4ab+2b2 find g'(x) A)4 B)-4 C)2x^2 D)4x E)does not exist not so sure where to start 2)If d/dx[f(x)] = g(x) and d/dx[g(x)] = f(3x, then d^2/dx^2 [f(x^2)] is

    asked on November 15, 2012
  25. math

    swimsuit discounted 65% on sale for $20.30

    asked on December 18, 2011
  26. chemistry Molarity

    You have 353 mL of a 1.25 M potassium Chloride solution, but you need to make a 0.50 M potassium Chloride solution. How many milliliters of water must you add to the original 1.25 M solution to make the 0.50 M potassium Chloride solution

    asked on December 11, 2010
  27. Math

    A nickel pyramidal paper weight has a square base of sides 5 cm and a height of 3 cm. What is the mass of a dozen such paper weights if the mass of 1 cm^3 of nickel is 8.9g?

    asked on February 15, 2012
  28. Mathematics

    At Harlan County Damn in Nebraska, the U.S. Bureau reports that the storage content of the reservoir decreased from 117,811 acre-feet (38.4 billon gallons of water) on Septmber 6, 2006 to 115,579 acre-feet (37.7 billion gallons of water) on October 6,

    asked on September 8, 2008
  29. Spanish

    13.2 The subjunctive with doubt, disbelief, and denial Completar Completa cada oración con la forma correcta del verbo apropiado de la lista. word bank haber ir llegar querer resolver ser 1. No creo que el gobierno el problema de la contaminación

    asked on July 3, 2012
  30. Physics

    A bicycle wheel of radius .7m is rolling without slipping on a horizontal surface with an angular speed of 2 rev/s when the cyclist begins to uniformly apply the brakes. The bicycle stops in 5s. Through how many revolutions did the wheel turn during the 5s

    asked on December 2, 2010
  31. grammar

    Can someone please check my work? Thank you. Which of the style guides is most focused on professionals who are writing articles for publication? MLA APA Chicago (my choice Which of the style guides no longer recommends citing URLs? MLA APA (my choice)

    asked on March 30, 2012
  32. Math

    A marketing research firm wishes to determine if the residents of Caldwell, Idaho, would be interested in a new downtown restaurant. The firm selects a simple random sample of 120 phone numbers from the Caldwell phone book and calls each household. Only 62

    asked on November 9, 2015
  33. chemistry

    A 1.00 mol sample of N2O4 (g) is placed in a 10.0 L vessel and allowed to reach equilibrium accourding to the equation N2O4(g) 2NO2(g) K = .0004 Calculate the equilibrium concentrations of N2O4(g) and NO2(g)

    asked on September 19, 2011
  34. fornt class

    what are the steps of the registration process form the viewpoint of front desk agent?

    asked on January 31, 2008
  35. English

    What is the verb mood of the sentence? Wear your coat when you are in the snow. indicative mood imperative mood subjunctive mood

    asked on January 9, 2012
  36. social studies

    Which of the following is the best description of the Arabian Peninsula's physical features? A) vast deserts and small mountains B) great stretches of grassland and gentle hills C) dense tropical rainforests idk the answer

    asked on March 15, 2019
  37. algebra 2b

    A simple random sample of 50 adults was surveyed, and it was found that the mean amount of time that they spend surfing the Internet per day is 54.2 minutes, with a standard deviation of 14.0 minutes. What is the 99% confidence interval (z-score = 2.58)

    asked on May 17, 2016
  38. Chemistry

    Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage

    asked on January 9, 2011
  39. Algebra

    On a math test, k students in the class averaged 80%. The remaining students in the class,q students, averaged 94% on the test. The class average on the test was 88%. Express the ration of k/q in simplest form.

    asked on February 25, 2013
  40. physics

    How do you know that a sealed calorimeter is a closed system? because temperature is consurved because the masses of the sample and water are equal because thermal energy is not transferred to the environment because work is done on the test sample Please

    asked on April 11, 2012
  41. physics

    A motorist drives along a straight road at a constant speed of 15.0 m/s. just as she passes a parked police officer,the officer starts to accelerate at 2.00 m/s^2 to overtake her. assuming the officer maintains this acceleration, a) determine the time it

    asked on January 17, 2011
  42. algebra

    (7z^ m )(nz ^ 3 )=−14z^7

    asked on October 2, 2018
  43. Math

    When Sarah takes the bus to work, the trip takes 30 minutes. When she takes the train to work, the trip takes 20 minutes. The average speed to the train is 15 mph faster than the speed of the bus. Find the distance to work.

    asked on May 9, 2013
  44. spanish

    Oraciones Transforma los elementos en oraciones usando el subjuntivo o el indicativo. Modelo algunos animales/ ir a morir/ a menos que / haber / leyes para protegerlos Algunos animales van a morir a menos que haya leyes para protegerlos. la ciudad / ir a

    asked on July 3, 2012
  45. Definitions

    People joined together in business. A. Proprietorship B. Ownership C. Partnership D. Investment I got C

    asked on September 1, 2014
  46. Computer Lit

    Does this look good? It's about Piracy and my position. Computer Piracy What is piracy? Are there pirates running around on the Internet? Piracy is theft, you’re stealing copyrighted work. You’re not stealing if you buy a book, a song on iTunes, or a

    asked on June 4, 2015
  47. English

    There's more then one answer What types of rhetorical devices are used in the following sentence? They would like more time off in the summer, for holidays, and on weekends. repetition anadiplosis parallelism repetition epistrophe repetition anaphora

    asked on July 24, 2018
  48. goemetry

    The pentagons below are similar. The area of the smaller pentagon is 30m^2. What is the area of the larger pentagon in m^2? Small pentagon is 4m and the larger one is 10m

    asked on April 8, 2012
  49. Geometry

    1. If line JK is perpendicular to line XY at its midpoint M, which statement is true? a) JX = KY b) JX = KX c) JM = KM d) JX = JY Is it c? 2. What information is needed to conclude that line EF is the bisector of ∠DEG? a) m∠DEF = m∠DEG b) m∠FEG =

    asked on December 2, 2017
  50. Physics

    A 2.60-kg block is attached to a horizontal spring that has a spring constant of 160. N/m. At the instant when the displacement of the spring from its unstrained length is -0.115 m, what is the acceleration a of the object?

    asked on November 16, 2010
  51. chemistry

    Determine the pH of a solution prepared from 1.0 L of a 0.10 M solution of Ba(OH)2 and excess Zn(OH)2 (s). The Ksp of Zn(OH)2 is 3×10^-15 and the Kf of Zn(OH)4^2- is 2×10^15.

    asked on April 1, 2019
  52. algebra

    I NEED HELP!! The table shows the annual consumption of cheese people in the United States foor selected years in the nineteenth century. What cubic model best fits this data? Year Pounds Consumption 1915 4.156 1922 4.857 1946 7.16 1991 29.989

    asked on November 26, 2012
  53. Chemistry

    A 1.00 L flask is filled with 1.05 g of argon at 25 ∘C. A sample of ethane vapor is added to the same flask until the total pressure is 1.150 atm . a.)What is the partial pressure of argon, PAr, in the flask? b.)What is the partial pressure of ethane,

    asked on July 11, 2018
  54. Physics

    A copper (shear modulus 4.2 x 1010 N/m2) cube, 0.324 m on a side, is subjected to two shearing forces, each of magnitude F = 6.93 x 10 5 N (see the drawing). Find the angle (in degrees), which is one measure of how the shape of the block has been altered

    asked on November 14, 2015
  55. physics

    A 900kg car strikes a huge spring at a speed of 22m/s, compressing the spring 4.0m How long is the car in contact with the spring before it bounces off in the opposite direction? I found the spring constant to be 27225, which i know is right, but am having

    asked on July 29, 2014
  56. psuchology

    Currently there are --- types of cognitive therapy in common practice. 2 4 6 cognitive therapy is rarely used today please help

    asked on April 16, 2012
  57. Chemistry

    Consider a 0.80M solution of HCN. The Ka of HCN is 6.2x10-10. What are the major species in solution? Calculate the pH of this solution. ----------------------------------- Ok, so i took a break, came back, and finished the problem. I have an x value of

    asked on October 18, 2011
  58. english

    The shed held a (motley) supply of gardening tools. choose the letter of the word or phrase that best matches the () word outdated decomposing varied (my choice) small please help small

    asked on April 13, 2012
  59. Chemistry

    Would you expect PbCl2 to dissolve in dilute HNO3(aq)? Explain in terms of solubility (Ksp)/equilibrium?

    asked on April 1, 2012
  60. psychology

    Which of the following best demonstrates the goal of congnitive therapy? I think therefore I am (maybe) A fool sees not the same tree that a wise man sees A musician must make music an artist must paint a poet must write if he is to be at peace with

    asked on April 13, 2012
  61. Definitions

    A smaller group of people within a larger group A. Culture B. subculture C. Demography D. Population None of the definitions say anything like the question please help

    asked on September 1, 2014
  62. Calculus

    find the area of the region inside the limacon r= 8 + 4sin(theta) HElp!! if you can show steps, i'd be greatful

    asked on June 2, 2014
  63. psychology

    humanistic therapy acknowledge unconscious forces and --- as a source of personal difficulties environment negative thoughts genetics psychosis please help

    asked on April 16, 2012
  64. geometry

    Can someone check my work please? What is the area of the figure below? 18 in² 30 in² 36 in² (my choice) 60 in² What is the area of the figure below? 31.5 m² 63 m² (my choice) 84 m² 126 m² What is the value of h? 9.6 units 26.7 units (my choice) 48

    asked on March 30, 2012
  65. writing

    Can someone help me describe the peruasive appeal of Dr. Kings "I Have a Dream" speech, and refering persuasive devices and literary elements in the answer

    asked on April 8, 2012
  66. English

    What is the tense of the underlined verb in the following sentence? "I will be studying his painting techniques this summer." present emphatic present perfect progressive future progressive present progressive under lined verb ( will be studying)

    asked on January 9, 2012
  67. Organic chemistry

    Is m-nitroaniline soluble in water, 1.0M NaOH, 1.0M HCl?

    asked on January 24, 2010
  68. Math

    The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism? Can you help me Dr.Jane or Ms.Sue?!?

    asked on March 5, 2013
  69. english

    Which sentence contains an adjective used as a modifier? A. There are two male puppies in the litter. B. Brian crunched on pretzels. C.The cats howled at 3:00 in the morning. D. Will you be at the park tomorrow?

    asked on July 16, 2018
  70. Chemistry

    What is the molar solubility of Mg(OH)2 in a solution containing 0,10 M NH3 ? Ksp Mg(OH)2 = 1.2x10^-11 Kp NH3 = 1.8x10^-5

    asked on April 18, 2016
  71. Organic chemistry

    is benzoic acid soluble in water, 1.0M NaOH, 1.0M HCl?

    asked on January 24, 2010
  72. algebra

    The line l_1 passes through the points (3,-3) and (-5,2). The line is the graph of the equation Ax + By = C, where A, B, and C are integers with greatest common divisor 1, and A is positive. Find A + B+ C.

    asked on January 24, 2015
  73. Physics

    A soldier is tasked with measuring the muzzle velocity of a new rifle. Knowing the principles of projectile motion, he decides to perform a simple experiment at the indoor firing range. The soldier hangs a target a distance of d = 101 m from the end of the

    asked on December 5, 2012
  74. chemistry

    2. Ammonia is produced by the reaction of hydrogen and nitrogen. N2(g) + 3H2(g) à 2NH3(g) o a. How many moles of H2 are needed to react with 1.0 mol of N2? o b. How many moles of N2 reacted if 0.60 mol of NH3 is produced? o c. How many moles of NH3 are

    asked on December 5, 2018
  75. Physics

    A 90 kg halfback runs north and is tackled by a 120 kg opponent running south at 4 m/s. The collision is perfectly inelastic. Just after the tackle, both players move at a velocity of 2 m/s north. Calculate the velocity of the 90 kg player just before the

    asked on February 6, 2010
  76. Physics

    Many people mistakenly believe that the astronauts that orbit the Earth are "above gravity". Calculate g for space-shuttle territory, 206 kilometers above the Earth's surface. Earth's mass is 6e24 kg, and its radius is 6.38e6 m (6380 km). Your answer is

    asked on March 9, 2016
  77. AP Physics

    Two speakers, one directly behind the other, are each generating a 406-Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Take the speed of sound

    asked on March 8, 2016
  78. Physics

    An egg is thrown nearly vertically upward from a point near the cornice of a tall building. It just misses the cornice on the way down and passes a point a distance 34.0 m below its starting point at a time 5.00 s after it leaves the thrower's hand. Air

    asked on September 9, 2017
  79. Chemistry

    If 7.83 g FeCl3(s) is dissolved in enough water to make 2.50 L of solution, what is the concentration of Fe3+ in the solution?

    asked on October 9, 2009
  80. science

    A hawk building its nest on an arm of a saguaro cactus is an example of

    asked on May 10, 2018
  81. Math

    How many volleyball games would Rana have to schedule if there were 10 teams in the league and each team played each other twice?

    asked on November 9, 2016
  82. physics

    A chair of mass 14.0kg is sitting on the horizontal floor; the floor is not frictionless. You push on the chair with a force F = 40.0N that is directed at an angle of 43.0∘ below the horizontal and the chair slides along the floor.

    asked on March 14, 2015
  83. english (notificatins)

    an appeal to logic--(persuasive appeals) the emotions that a speaker demonstrates towards his or her subject--(pathos) an appeal to the credibilty of the speaker--(ethos) an appeal to a sense of right or wrong--(logos) devices in a speech that seek to

    asked on April 12, 2012
  84. Physics

    Suppose you are provided with 500 dice.calculate the number of throws that is equivalent to one half life and the decay costant for the process.under radioactivity decay analogue experiment

    asked on May 19, 2017
  85. Math 10C

    Janet needs a rectangular piece of cardboard measuring 21 ft by 24 ft for a school project. a) What is the area of the cardboard in square feet? b) What is the area of the cardboard in square yards? Show your calculations in two different ways. c) The

    asked on February 7, 2017
  86. Chemistry

    Consider 2 separate solutions, one of a weak acid HA and one of HCL. Assume that you started with 10 molecules of each. Draw a picture of what each solution looks like at equilibrium. Ok to my very limited knowledge on this subject so far, a weak acid at

    asked on October 11, 2011
  87. physics

    A 63-kg ice-skater glides with a speed of 10 m/s toward a 14-kg sled at rest on the ice. The ice-skater reaches the sled and holds on to it. The ice-skater and the sled then continue sliding in the same direction in which the ice-skater was originally

    asked on March 30, 2011
  88. LA check work

    Hello could you check my work on these two questions? Question one: How do you form the perfect tense of a verb? A. use the helping verb will and the base form of the verb B. use a form of the verb have and the present particle of the verb C. use a form of

    asked on November 3, 2015
  89. Physics

    A child rolls a ball on a level floor 3.4 m to another child. If the ball makes 9.0 revolutions, what is its diameter?

    asked on November 25, 2010
  90. physics

    Two blocks with masses M1 = 8.0 kg and M2 = 5.4 kg are connected with a massless string over two massless and frictionless pulleys, as shown in the Figure. One end of the string is connected to M1 while the other end is fixed. What is the acceleration of

    asked on November 4, 2015
  91. Math

    For a given right, side a = 76.4 feet and side b = 39.3, what is the measure of angle b to the nearest degree

    asked on August 16, 2014
  92. Science- Chemistry

    Determine the type of bonding in each substance. a. Zinc, Zn (s) b. Propane, C3H8 (l) c. Calcium Carbonate, CaCO3 (s)

    asked on December 11, 2012
  93. Physics

    A bicycle wheel of radius .7m is rolling without slipping on a horizontal surface with an angular speed of 2 rev/s when the cyclist begins to uniformly apply the brakes. The bicycle stops in 5 s. Through how many revolutions did the wheel turn during the 5

    asked on November 30, 2010
  94. Physics

    A bicycle wheel of radius .7m is rolling without slipping on a horizontal surface with an angular speed of 2 rev/s when the cyclist begins to uniformly apply the brakes. The bicycle stops in 5 s. Through how many revolutions did the wheel turn during the 5

    asked on November 18, 2010
  95. Math

    119.71153846 rounded to the nearest meter

    asked on March 5, 2019
  96. Root Words

    Which of the following root words means “more than one”? A. Junct- B. Ambi- C. Ject- D. Terr- B?

    asked on September 3, 2014
  97. Physics

    A bicycle wheel of radius .7m is rolling without slipping on a horizontal surface with an angular speed of 2 rev/s when the cyclist begins to uniformly apply the brakes. The bicycle stops in 5 s. Through how many revolutions did the wheel turn during the 5

    asked on December 1, 2010
  98. equation complex number

    z^4 + 81 = 0 (solve) change it to polar, then take the root. z^4= 81@180 z= 3@180/4 + n90 where n=0, 1, 2, 3 check: z= 3@180/4 + 3*90=3@315 z^4=81@(4*315)=81@1260= 91@180=-81 you can check it at the other roots also. this is what i did: z^4 = - 81 z (81

    asked on November 3, 2006
  99. Physics

    A tennis player hits a tennis ball (m = 0.0550 kg) with a force of 32.2 N over a time interval of 0.22 s. If the ball as a velocity of 42.2 m/s before being hit and 87.8 m/s after being hit, how much work did the tennis player do?

    asked on March 28, 2018
  100. pre-calculus

    Assume that the number of bacteria follows an exponential growth model: P(t)=P0ekt . The count in the bacteria culture was 900 after 20 minutes and 1600 after 30 minutes. (a) What was the initial size of the culture? (b) Find the population after 80

    asked on November 7, 2016


  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10