Most popular questions and responses by tara
  1. finance

    You have credit card debt of $25,000 that has an APR (monthly compounding) of 15%. Each month you pay minimum monthly payment only. You are required to pay only the outstanding interest. You have received an offer in the mail for an otherwise identical

    asked on July 12, 2010
  2. English.. Literature... books

    can u give me multiple choice questions from the "examview" on the story "A Noiseless Flash" from Hiroshima by John Hersey ... i really need to practice this selection. Plz if u can, copy and paste the questions because the link you might send me would not

    asked on March 11, 2011
  3. physics

    A small block is released from rest at the top of a frictionless incline. The distance from the top of the incline to the bottom, measured along the incline, is 3.60 m. The vertical distance from the top of the incline to the bottom is 1.36 m. If g = 9.80

    asked on January 29, 2014
  4. Physics

    Original Question: A block hangs in equilibrium from a vertical spring. When a second identical block is added, the original block sags by 5.00 cm. What is the oscillation frequency of the two block system? bobpursley s'ltn: F=kx = mg x=mg/k but for the

    asked on January 11, 2011
  5. statistics

    a company manufactures batteries in batches of 18 and there is a 3% defect rate. Find the standard deviation for a number of defects per batch?

    asked on May 12, 2012
  6. Calculus

    a piece of wire 12 ft. long is cut into two pieces. one piece is made into a circle and the other piece is made into a square. Let the piece of length x be formed into a circle. allow x to equal 0 or 12, so all the wire is used for the square or for the

    asked on July 3, 2012
  7. physics

    By accident, a large plate is dropped and breaks into three pieces. The pieces fly apart parallel to the floor, with v1 = 3.05 m/s and v2 = 1.95 m/s. As the plate falls, its momentum has only a vertical component, and no component parallel to the floor.

    asked on February 25, 2016
  8. Physics

    An airplane is flying in a horizontal circle at a speed of 514.8 km/h. The plane is banked for this turn, its wings tilted at an angle of 41.6° from the horizontal. Assume that a lift force acting perpendicular to the wings acts on the aircraft as it

    asked on September 26, 2012
  9. Algebra

    Use integer values of x from –3 to 3 to graph the equation y = –|–x|.

    asked on April 13, 2018
  10. Physics

    A block hangs in equilibrium from a vertical spring. When a second identical block is added, the original block sags by 5.00 cm. What is the oscillation frequency of the two block system?

    asked on January 11, 2011
  11. physics

    Adolf and Ed are wearing harnesses and are hanging at rest from the ceiling by means of ropes attached to them. Face to face, they push off against one another. Adolf has a mass of 104 kg, and Ed has a mass of 80 kg. Following the push, Adolf swings upward

    asked on February 25, 2016
  12. science

    what distinguishes a living thing from a non living

    asked on September 5, 2019
  13. Religion

    What movie(s) could one show illustrating the Moral Development Theory by Lawrence Kohlberg?

    asked on March 30, 2009
  14. Math

    Kamala had 5,026 grams of flour in a canister. She brought a 4,157 gram bag of flour. She poured some flour from the bag to the canister. As a result, the mass of the flour in the canister is now twice the mass of the flour left in the bag. How much flour

    asked on January 12, 2012
  15. chemistry

    calculate the pH of a 1.94M solution of nitrous acid (HNO2 - ka = 4.5E-4).

    asked on December 15, 2010
  16. Adv Algebra and Financial Apllications

    The yearly attendance at a local movie theatre is 56,000 and grows continuously at a rate of 4.2% each year. What is the approximate attendance at the movie theatre in nine years? A: 57,789 B: 77,789 C: 81,096 D: 81,724

    asked on August 30, 2017
  17. Religion

    What song(s) could one play illustrating the Moral Development Theory by Lawrence Kohlberg?

    asked on March 31, 2009
  18. Physics

    3. Yellow light travels through a glass block at a speed of 1.97x108 m/s. The wavelength of the light in this type of glass is 3.81x10-7 m. What is the frequency of yellow light?

    asked on February 24, 2014
  19. physics

    Four masses are positioned at the corners of a rectangle, as indicated in the figure below (not to scale). (a) Find the magnitude and direction of the net force acting on the 2.0 kg mass if x = 0.40 m and y = 0.12 m. (b) How do your answers to part (a)

    asked on November 27, 2011
  20. Physics

    As a civil engineering intern during one of your summers in college, you are asked to design a curved section of roadway that meets the following conditions: When ice is on the road, and the coefficient of static friction between the road and rubber is

    asked on September 26, 2012
  21. Math

    If a cat has 5 kittens, what is the probability that all 5 will be female?

    asked on April 9, 2008
  22. Arithmetic

    The first, second and third terms of a geometric progression are 2k+3, k+6 and k, respectively. Given that all the terms of geometric progression are positive, calculate (a) the value of the constant k (b) the sum to infinity of the progression.

    asked on June 16, 2014
  23. chemistry HELP

    laboratoories order hydrochloric acid as a concentrated solution (e.g. 36% W/V). what initial volume of concentrated laboratory hydrochloric acid should be diluted to prepare 5.00L of a 0.12 mol/L solution for an experiment? plz can someone show me how to

    asked on December 9, 2010
  24. Physics

    A 84.0-kg airplane pilot pulls out of a dive by following, at a constant speed of 163 km/h, the arc of a circle whose radius is 312.0 m.

    asked on September 26, 2012
  25. Physics

    A Ping-Pong ball has a mass of 2.3 g and a terminal speed of 8.2 m/s. The drag force is of the form bv2 What is the value of b?

    asked on September 26, 2012
  26. physics

    The brightest light detected from the star Antares has a wavelength of about 103 nm. What is the frequency of this light?

    asked on May 9, 2010
  27. chemistry

    testing bronsted lowry reaction predictions...... im super stuck can someone help me steo by step how to figure this out assuming i use the 5 step process? write a balanced chemical equation for ch3coona and hcl reaction position of equilibrium. I know

    asked on November 20, 2012
  28. chemistry

    For the voltaic cell Cr(s)/Cr3+(aq)//Ni+2 (aq)/Ni(s), list the reactions at the cathode, anode, and the overall net reaction.

    asked on November 24, 2010
  29. Chemistry

    Aluminum sulfate reacts with barium chloride to yield barium sulfate and aluminum chloride. What mass of barium sulfate is produced from 650 mL of 0.320 M of aluminum sulfate? Thank you.

    asked on September 27, 2010
  30. Sociology

    What aspects of the social and work environment in a fast food restaurant would be of particular interest to a sociologist because of his or her sociological imagination?

    asked on January 31, 2010
  31. Math 4th Grade

    Adult Tickets are $5 Child Tickets are $2 There are twice as many children as adults at the concert. The total amount collected was $1,080. How many adults are at the concert?

    asked on January 25, 2012
  32. AppliedStats

    Suppose that you bought a stock 6 years ago at $12 . The stock’s price at the end of each year is shown here. Year 1 2 3 4 5 6 Price 10 14 15 22 30 25 a) Compute the rate of return.

    asked on February 13, 2016
  33. math 2nd grade

    Need to find the rule for the following letters: AEFHIKLMN BCDGJOP

    asked on May 6, 2010
  34. Pre-Calculus

    he amount M (in billion of dollars) of mortgage debt outstanding in the US from 1990 to 2001 can be approximated by the function M(t)= 29.9t^2 + 3892 where t=0 represents 1990. Rewrite the function so that t=0 represents 2000.

    asked on February 16, 2015
  35. Organic Chemistry - Refractive Index

    Hi, I have a question that I don't know if I am on the right track to answering. If two samples of organic liquids give the same refractive index reading, are the two liquids the same? I know the refractometer is a very precise instrument - up to 8 decimal

    asked on October 15, 2008
  36. Math

    Start at 5. Create a pattern that multiplies each number by 3 and subtracts 2. Stop when you have 5 numbers.

    asked on September 28, 2018
  37. chemistry lab titration

    10.0 mL aliquot of 0.100M Na3AsO4 is titrated with 0.100M HCl. pKa1=2.25 pKa2=6.77 pKa3=11.60 Sketch the titration graph by calculating the pH at 0mL, 5mL, 10mL, 15mL, 20mL, 25mL, 30mL, 40mL of HCl.

    asked on April 7, 2010
  38. Precal

    I got this far, but now I'm stuck...please help 6cos^2theta - 5cos(theta) + 1 = 0 6cos^2theta - 5cos(theta) = -1 cos(theta) * {6cos(theta) - 5} = -1

    asked on April 27, 2009
  39. physics

    A two-stage rocket moves in space at a constant velocity of 4800 m/s. The two stages are then separated by a small explosive charge placed between them. Immediately after the explosion the velocity of the 1290-kg upper stage is 5600 m/s in the same

    asked on February 23, 2016
  40. BOOKS.. english

    Explain how John Hersey blended characteristics of fiction and nonfiction in Hiroshima. How does this combination of genres help Hersey convey his feelings about the atomic attack on Hiroshima? Write a short essay that explains your answer. Support your

    asked on March 11, 2011
  41. Biology

    You find an unusual organism growing on the bark of a dying tree. Under a microscope, you observe that its cells are eukaryotic, have cell walls, and do not contain chloroplasts. Into what kingdom would you classify this organism? Explain your decision.

    asked on March 8, 2011
  42. chemistry need help plzzz tomorrow is a TEST!!!

    phosphoric acid is the active ingredient in many commercial rust-removing solution.calculate the volume of concentrated phosphoric acid (14.6 mol/L)that must be diluted to prepare 500mL of a 1.25 mol/L solution. how can i calulate the volume cocentration

    asked on December 9, 2010
  43. 4th grade

    write a number pattern for 8 starfish if each has 5 arms.

    asked on December 16, 2009
  44. math check please

    1.Write 4x4x4x4x4 as a power of 4. Answer: 4^5 2. Evaluate. 72 divide 8-9 divide 3 Answer: 0 3. Give the place value for the indicated digit 8 in the number 138,350 Answer: Thousands 4. Fencing a rectangular field that measures 37 ft by 27 ft How much

    asked on February 7, 2007
  45. Math

    4 accounting majors, 2 economics majors and 3 marketing majors have an interview for5 different positions with a large company. Find the number of dfferent ways that 5 of these could be hired. 4 accounting majors must be hired first then the final position

    asked on September 3, 2013
  46. physics

    A 3.28-kg bucket is attached to a disk-shaped pulley of radius 0.108 m and mass 0.727 kg. (a) If the bucket is allowed to fall, what is its linear acceleration? (b) What is the angular acceleration of the pulley? (c) How far does the bucket drop in 1.65 s?

    asked on November 17, 2011
  47. Trig

    Simplify sin x cos^2x-sinx Here's my book's explanation which I don't totally follow sin x cos^2x-sinx=sinx(cos^2x-1) =-sinx(1-cos^2x) =-sinx(sin^2x) (Where does sine come from and what happend to cosine?) =-sin^3x

    asked on January 4, 2010
  48. Business English

    You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must describe one

    asked on October 21, 2014
  49. Physics

    A diver jumps off of a diving board.  She leaves the board with a velocity of 3.70 m/sec in the upward direction.  How far will she rise above the diving board before she reverses her motion and starts to fall downward?

    asked on September 18, 2016
  50. chemistry

    consider the reaction: CO (aq) + Cl2 (aq) --> COCL2 (aq). Calculate Delta G at non standard conditions for the reaction at 298.15k, if the concentration of COCl2 is reduced to 0.01832M, while the concentrations of CO and cl2 remain at 1M. Delta G rxn =

    asked on November 22, 2010
  51. statistics

    An instructor in a large lecture class found at the end of the semester that total points scored by students in his class was approximately Normal with mean 530 and standard deviation 80. If 10% of the class are to receive A's (he grades on a curve), what

    asked on October 23, 2014
  52. elements of calculus

    cost, revenue, and profit are in dollars and x s the number of units cost: if the cost function for a particular good is C(x)= 3x^2 +6x + 600, what is the (a) marginal cost function (b) marginal cost if 30 units are produced? (c) interpretation of your

    asked on October 11, 2011
  53. algebra

    d=55t solve for t: help me to understand how to do this

    asked on April 21, 2010
  54. physical

    Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 84 kg, and the mass of the woman is 68 kg. The woman pushes on the man with a force of 50 N due east. Determine the

    asked on February 13, 2013
  55. american history

    Which of the following distinguished the Middle Colonies from New England and the Southern Colonies?

    asked on May 1, 2012
  56. chem

    how do you Convert moles S2O3^-2 to moles I2

    asked on April 4, 2011
  57. calculus

    an airplane flying due east at 400 km/h pasess over an airport 12 minutes before a second plane flying south 30 degrees west at 500 km/h.if the airplanes are at the same altitude how fast will they by seprating when the seccong pane is over the

    asked on March 17, 2011
  58. math

    I am trying to understand how to translate math questions into an inequality. Here is an example: The cost is at most $4857.95

    asked on April 21, 2010
  59. Statistics

    The next three questions refer to the following situation. Data from previous years reveal that the distribution if first exam scores in an introductory statistics class is approximately normal with a mean of 72 and a standard deviation of 12. 16) Given

    asked on August 24, 2013
  60. Adult College

    Discuss generally the role of planning in each of the three levels of positive behavior support (PBS).

    asked on January 27, 2011
  61. accounting-income tax

    During the current year, Deborah Baronne, a single individual, paid the following amounts: Federal income tax $10,000 State income tax $4,000 Real estate taxes on land $1,400 State sales tax $2,000

    asked on September 1, 2013
  62. Math

    Alice is three times as old as Jack. In 10 years she will be twice as old as Jack. How old are Alice and Jack now? How old will they be in10 years

    asked on January 23, 2013
  63. Physics

    A 150-g block is projected up a ramp with an initial speed of 5.6 m/s. The coefficient of kinetic friction between the ramp and the block is 0.23.

    asked on September 26, 2012
  64. Chemistry

    Calculate the mass of Glauber's salt needed to lower the temp of air in a room by 6.3 C. The mass of air in the room is 555.4 kg, the specific heat is 1.2J/g-c

    asked on October 24, 2011
  65. chemistry

    A 1.2431 -g alloy sample was analyzed for its copper content iodometrically. The alloy was dissolved in hot, concentrated nitric acid and prepared for analysis. The addition of excess KI(aq) solution precipitated the copper as cuprous iodide and liberated

    asked on April 4, 2011
  66. writing sentences and paragraphs

    you've applied for a specific job in your field of study .The human resources department arranges an interview and tells you to bring a polished piece of writing for them to evaluate your writing skills

    asked on January 20, 2009
  67. Physics

    A rock perched on the edge of a cliff falls off.  It starts from rest, and falls freely for 1.48 seconds before reaching the ground at the base of the cliff.   What is the speed of the stone just before it hits the ground?

    asked on September 18, 2016
  68. Chemistry

    for each of the following, give an answer with the correct number of significant figures: A. 400 times 185 b. 2.40 divided by 4 times 125 c. 0.825 times 3.6 times 5.1 d. 3.5 times 0.261 divided by 8.24 times 20.0

    asked on January 15, 2013
  69. Physics

    In the figure below, m1 = 3.8 kg, m2 = 5.2 kg, and the coefficient of kinetic friction between the inclined plane and the 3.8-kg block is μk = 0.3. Find the magnitude of the acceleration of the masses and the tension in the cord.

    asked on September 26, 2012
  70. Algebra

    Mildred makes $3 an hour babysitting and $6 an hour when she works at Wendys. Her parents do not want her working more than 20 hours per week. Mildred would like to earn at least $70 a week. Write a system of inequalities that show the number of hours she

    asked on February 5, 2012
  71. chemistry

    A student determined the chloride content of a commercial salt by using the Mohr method. A 0.5324 -g sample of the salt was dissolved in distilled water and diluted to a final volume of 250. mL. A 25.-mL aliquot of the analyte solution was then titrated

    asked on April 4, 2011

    consider the reaction: CO(aq) + Cl2 (aq) --> COCl2 (aq). Calculate Delta G at non standard conditions. T = 298.15K. Concentration of COCl2 is reduced to 0.01832 M while the concentrations of CO and Cl2 remain 1M. Delta G rxn = -67.4 kj.

    asked on November 24, 2010
  73. math

    837 divided by f = 31

    asked on November 11, 2010
  74. chemistry

    When 2.53 g of NaOH(s)(40.0g/mol) dissolves in 100.0 g of water, the temperature of the solution changes from 20 degrees C to 26.3 degrees C. Calculate qrx in KJ/mol specific heat of the solution is 4.18 J/(g*K)

    asked on October 27, 2010
  75. Chemistry

    Phenylcarbinol is used in nasal sprays as a preseriative. A solution of 0.52g of the compound in 25.0g of water has a melting point of -0.36C. What is the molar mass of phenylcarbinol?

    asked on October 6, 2010
  76. Trig

    I'm trying to find out which quadrant some trigonometric functions lie in. The problem is one of them is equal to zero, and zero is neither positive or negative. How do I determine which quadrant it belongs in then???

    asked on January 4, 2010
  77. Math

    Renting a truck cost $30 per day and 22 cents per mile when the driver goes beyond the 23 miles a lot of per day. How much wood Tabitha pay when renting a truck for 3 days and driving a total of 210 miles?

    asked on July 14, 2015
  78. reading

    is there anywhere i can read the story "my first free summer" by julia alvarez online?

    asked on September 12, 2012
  79. Chemistry

    What is the maximum mass of S8 that can be produced by combining 92.0g of reactant? 8SO2 + 16H2S -> 2S8 + 16H2O

    asked on September 18, 2011
  80. Chemistry

    What is the maximum mass of S8 that can be produced by combining 92.0g of reactant? 8SO2 + 16H2S -> 2S8 + 16H2O

    asked on September 18, 2011
  81. algebra

    the expression below is the factorization of what trinomial -7(x+5)(x+8)

    asked on February 4, 2011
  82. chemistry

    For a certain reaction, Delta H(not) = -76.8 kj and delta S(not) = -217 j/k. If n =3, calculate E for the reaction at 25degrees celcius.

    asked on November 22, 2010
  83. chemistry

    Ethylene glycol (antifreeze) has a specific heat of 2.42 J/(g*K). Calculate q when 3.65 kg of ethylene glycol cools from 240 degrees C to 78 C

    asked on October 27, 2010
  84. Trig

    Solve: 3tan^2x-1=0. I got +/- (the sq. root of 3)/3 which is correct according to my study guide. However, I don't know how to use the unit circle to find this. The copy of the unit circle which I have does not have tangent values listed, only sine and

    asked on January 7, 2010
  85. math

    A recipe calls for 4 part club soda to 3 part juice, how much juice is needed for 32 Oz of club soda?

    asked on December 18, 2014
  86. chemistry

    a buffer is made by mixing 0.1 moles of acetic acd a sodium acetate in 500 ml of solution. determine the pH of the buffer. (Ka for acetic acid - 1.8E-5)

    asked on December 15, 2010
  87. chemistry

    For a certain reaction, Delta H(not) = -76.8 kj and delta S(not) = -217 j/k. If n =3, calculate E for the reaction at 25degrees celcius.

    asked on November 24, 2010
  88. physics

    Using a rope, a child pulls a box across a rough floor at a constant speed. The tension in the rope is 105 N and the rope makes an angle of 37 degrees with the horizontal. Find the friction force acting on the box (due to the rough floor).

    asked on June 9, 2015
  89. Physics

    A car speeds, at a constant 16 m/s, past a parked police motorcycle. Five seconds later, the police officer leaves on her motorcycle, and accelerates at 2 m/s2. How many seconds until she catches the car?

    asked on May 23, 2015
  90. Math

    A flat screen television is sized depending on the length of the diagonal (ex: a 40 inch flat screen has a 40 inch diagonal ). If a 32 inch television has a width that is 5 inches longer than its length. Determine the dimensions of the television (using

    asked on November 24, 2013
  91. Personality Psychology

    what is the difference between distortion and displacement?

    asked on January 24, 2012
  92. Trig

    I'm confused on how to determine what the end result angles are for a trigonometric identity (I get how to find the value of sin, cos, etc., and I know how to find the reference angle. I just don't know how to determine further angles from there). For

    asked on January 11, 2010
  93. Calculus

    what is the definite integral of 1) Upper boundry 4 Lower boundry 0 Problem: x/ square root of 1+2x) dx 2) Upper boundry 1/2 Lower boundry 0 Problem: sin^-1x / square root of 1-x^2) dx 3) upper boundry 4 lower boundry 1 Problem: e^square root of x/ square

    asked on December 5, 2007
  94. physics

    The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires a gun, she is driven back over the edge and into the sea. Suppose the mass of a bullet is 0.011 kg, and its velocity is +731 m/s. Her

    asked on February 25, 2016
  95. Business

    to help employees become more effectively productive, companies may form cross-______ terms that draw on people from different departments to work on a special project.

    asked on June 8, 2015
  96. college algebra

    Find all real solutions of the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.) x4 + 27x = 0

    asked on September 5, 2013
  97. CHEM

    Cl2 + SO2 + 2 H2O --> 2 Cl^1- + SO4^2- + 4 H^1+ 1) Which element is oxidized ? (simply write the element symbol; e.g. Fe, O) 2) How many electrons are lost by each atom ? (1, 2, 3) 3) Which element is reduced ? 4) How many electrons are gained by each atom

    asked on February 12, 2012
  98. chemistry

    the molar solubility of PbS, in a 0.150 M ammonium sulfide (NH4)2S solution is? The Ksp for PbS= 3.2E-28.

    asked on December 15, 2010
  99. chemistry

    Calculate the Delta G(not) for the reaction: C(s) + CO2 (g) --> 2 CO Delta Gf : CO2 = -394.4 kj/mol Delta Gf : CO = -137.2 kj/mol

    asked on November 22, 2010
  100. Accounting

    A manufacturing company has to decide between their current process which has a variable cost of $10/unit and investing in new equipment which will reduce the variable cost to $5/unit. The new equipment will cost $100,000. Use a break-even analysis to

    asked on February 4, 2010


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