Popular questions and responses by fred
  1. Math

    VF is a small accounting firm supporting wealthy individuals in their preparation of annual income tax statement. Every December, VF sends out a short survey to their customers, asking for the information required for preparing the tax statements. Based on

    asked on August 31, 2011
  2. Language Arts, can anyone check?

    1. Which statement is shared by both "Zoos: Joys or Jails?" and "Why Do We Need Zoos?" a. clearly stated claim b. humorous introduction c. unsupported facts d. one-sided argument 23 Read the passage. What technique is the author using to develop point of

    asked on May 1, 2016
  3. PhysicsI

    A windowpane is half a centimeter thick and has an area of 1.0 m2. The temperature difference between the inside and outside surfaces of the pane is 15° C. What is the rate of heat flow through this window? (Thermal conductivity for glass is 0.84

    asked on July 24, 2014
  4. Chemistry

    A 25g piece of an unknown metal alloy at 150 degrees Celsius is dropped into an insulated container with 200 g of ice. Calculate the specific heat capacity of the metal, given that 9.0 g of ice melted. How would you work this out?

    asked on July 5, 2016
  5. Physics

    An ideal spring of negligible mass is 12.00cm long when nothing is attached to it .when you hang a 3.15kg weight from it , you measure its length to be 13.40cm . If you want to store 10.0J of potential energy in this spring , what would be it's total

    asked on June 7, 2020
  6. chemistry

    Platinum has a face-centered cubic crystal structure and a density of 21.5 g/cm3. What is the radius of the platinum atom?

    asked on January 29, 2010
  7. Government

    which of the following is an example of the principle of checks and balances? A)President can veto an act of congress. B)Members of congress have the power to raise their own salaries C)Federal courts have the power to hear cases involving federal law

    asked on September 2, 2016
  8. Maths

    The bearing of A from B is 060 degrees. What is the bearing of B from A? Is it: a) 60 degrees b) 240 degrees c) 120 degrees d) 200 degrees p.s. The questions I sent earlier was an acccident To get reciprocal bearings, add 180 Thanks bobpursley

    asked on July 1, 2007
  9. psychology

    The primary difference between anorexia nervosa and bulimia nervosa is that anorexics A)Binge,B)purge,c)engage in excessive exercise d)show dramatic weight loss

    asked on July 11, 2010
  10. PhysicsI

    A puddle holds 150 g of water. If 0.50 g of water evaporates from the surface, what is the approximate temperature change of the remaining water? (Lv = 540 cal/g)

    asked on July 24, 2014
  11. econ.

    2. A company is considering building a bridge across a river. The bridge would cost $2 million to build and nothing to maintain. The following table shows the company¡¯s anticipated demand over the lifetime of the bridge: Price per crossing ($) 8 7 6 5 4

    asked on June 11, 2011
  12. Physics

    A long jumper approaches his takeoff board A with a horizontal velocity of 30ft/s. Find the vertical component (vy) of the velocity of his center of gravity at takeoff for him to make the jump if he lands at a spot 22ft from point A. What is the vertical

    asked on October 4, 2009
  13. Physics

    A proton and an electron enter perpendicular to the direction of the magnetic field. The speed of the proton is twice the speed of the electron. What is the ratio of the force experienced by the proton to the electron?

    asked on February 3, 2013
  14. Science

    It takes a force of 22 N to push a 10 kg box horizontally with a constant velocity over concrete. What is the coefficient of kinetic friction between the box and the concrete? My guess is 10 kg/22 N = 0.4545 but I'm not sure if you have to take in account

    asked on November 30, 2016
  15. Chemistry

    A mixture of ethyne ( C2H2 ) and methane ( CH4 ) occupied a certain volume at a total pressure of 16.8 kPa. Upon burning the sample to form CO2 and H2O, the CO2 was collected and its pressure found to be 25.6 kPa in the same volume and at the same

    asked on November 16, 2008
  16. Maths

    In how many ways can a comittee of 3 women and 4 men be chosen from 8 women and 7 men if two particular women refuse to serve on the committe together? Answer is 1750 but I have no clue how to get to it

    asked on June 7, 2018
  17. Chemistry-w/addition

    At elevated temperatures, SbCl5 gas decomposes into SbCl3 gas and Cl2 gas as shown by the following equation: SbCl5(g) SbCl3(g) + Cl2(g) (a) An 59.8 gram sample of SbCl5 (molecular weight 299.0) is placed in an evacuated 15.0 liter container at 182°C. 1.

    asked on January 15, 2011
  18. science

    how do i draw a simple particle diagram to show how ear defenders will work

    asked on March 10, 2010
  19. Chemistry

    How many liters of oxygen gas at 153 degrees celsius and 0.820 atm can be produced by the decomposition of 22.4 g of solid KClO3? (The other decomposition product is solid potassium chloride)

    asked on January 29, 2010
  20. Chem

    Consider a solution that contains both C5H5N and C5H5NHNO3. (Kb for pyridine, C5H5N, is 4.0 x 10^-4) (a) Calculate the ratio of [C5H5N]/[C5H5NH+] if the solution has a pH of 4.50. (b) Calculate the ratio of [C5H5N]/[C5H5NH+] if the solution has a pH of

    asked on April 7, 2009
  21. Maths

    A superannuation fund paid 6% p.a. for the first 10 years and then 10% p.a. after that. If Thanh put $5000 into this fund at the end of each year, how much would she have at the end of 25 years? Answer: $466 563.74

    asked on November 24, 2018
  22. physical science

    an object has 2.0x 10^19 more electrons than protons. What is the net electric charge of this object in coulomb?

    asked on March 17, 2017
  23. Calculus - Rate of Change

    Can someone explain how to solve this problem? Sand is being dumped on a conveyor belt onto a pile in such a way that the pile forms in the shape of a cone whose radius is always equal to its height. Assuming that the sand is being dumped at a rate of 10

    asked on July 29, 2015
  24. Physics

    A circular loop with 30 turns and area of 0.25 m2 rotates at 100 rad/s. The axis of rotation of the loop is perpendicular to the direction of the magnetic field of 0.04 Tesla. What is the maximum emf induced in the loop?

    asked on February 2, 2013
  25. Calculus

    If f(x) = (e^(x))sin(x) what is the 1000th derivative? Step are needed and the general rule/pattern

    asked on April 17, 2010
  26. math

    a man is 6ft tall and he casts a shadow of 5 ft, if a tree casts a 30ft shadow, how tall is the tree?

    asked on March 13, 2009
  27. calculus

    If a ball is thrown vertically upward with a velocity of 160 ft/s, then its height after t seconds is s = 160t - 16t^2 What is the velocity of the ball when it is 96 ft above the ground on its way up?

    asked on November 14, 2008
  28. math

    Four darts are thrown at the target shown to the right. Assume that each of the darts land within one of the rings or within the bull’s eye. How many different point totals are possible

    asked on June 18, 2019
  29. world history

    What impact did the collapse of the Soviet Union have on the end of segregation in South Africa? a- The decline of the Soviet Union allowed for the United Nations to intervene in the segregation policies of the South African government. b-The decline of

    asked on July 30, 2018
  30. Maths

    A committee of 6 people is to be selected randomly from a group of 11 men and 12 women. Find the number of possible committees if: a) a particular woman is included b) a particular man is not included c) there are to be 4 women and 2 men

    asked on June 4, 2018
  31. Pre-calculus

    A surveyor standing 62 meters from the base of a building measures the angle to the top of the building and finds it to be 38°. The surveyor then measures the angle to the top of the radio tower on the building and finds that it is 45°. How tall is the

    asked on October 29, 2015
  32. Math

    How do I convert this decimal into a fraction? 3.083 (The last 3 is repeating by itself)

    asked on October 27, 2013
  33. Reading

    Is these answers correct? devoid infuriate jeopardize smug implore intimidate sibling sneer introvert vivacious 1-2. The people I love best can __me the most. No one can make me as angry as my parents and__s can. I guess close relationships are conducive

    asked on February 27, 2013
  34. Chemistry

    The specific heat of a solution is X J/g*degreesC and its density is Y g/mL. The solution was formed by combining Z mL of solution A with Z mL of solution B, with each solution initially at J degreesC. The final temperature of the combined solutions is D.

    asked on April 2, 2010
  35. maths

    Leila has a number of identical equilateral triangle shaped tiles. How many must she put together in a row (edge to edge) to create a shape which has a perimeter ten times that of a single tile? Answer = 28 Thanks to anyone who helps

    asked on November 2, 2018
  36. Maths

    In how many ways can 8 people be divided into 2 groups of 3 and 5 people respectively? Thanks again to anyone who helps. Answer is 56

    asked on June 9, 2018
  37. Maths

    How much do you need to subtract from 43/10 to make 4?

    asked on November 11, 2017
  38. Math

    A football is punted. Its height, H metres is given by the quadratic relation with equation: H = -5t2 + 21t, where t is the time in seconds after the punt. I tried to do this question on a test but I just ran out of time How is the easiest and quickest way

    asked on November 20, 2015
  39. English

    Select the letter of the term that identifies the function of the phrase in parentheses in the following sentence: One goal is (to see potato-starch food boxes rather than Styrofoam ones). a. adjective e. object of a preposition b. adverb f. direct object

    asked on June 12, 2015
  40. Algebra 2

    a company plans to sell embroidered hats for $15. the company's financial planner estimates that the cost, y, of manufacturing the hats is a quadratic function with a y-intercept of 7,920 and a vertex of (150, 9,000). what is the minimum number of hats the

    asked on May 18, 2015
  41. MATH 117

    What is the greatest common factor (HINT: It may help for you to show an example of how to find a greatest common factor)? How do you know when you have found the greatest one?

    asked on July 16, 2013
  42. phy

    A popular brand of pressure washer claims to deliver 330 litres per hour of water at a pressure of 80 bar, drawing 1400 W of electrical power in the process. Pressure washers of this type consist of an electric motor that drives a small compressor to

    asked on May 11, 2013
  43. Reading

    Is these answers correct? condone, pathetic, feign, precedent, comtemplate gape furtive feasible, fiscal, punitive 1-2. "Would it be__ for us to buy a new copy machine?" Hal asked at the office budget meeting. The boss replied, "Unfortunately, our

    asked on February 27, 2013
  44. Physics

    A proton and an electron enter perpendicular to the direction of the magnetic field. The speed of the proton is twice the speed of the electron. What is the ratio of the force experienced by the proton to the electron? Thanks for helping me out

    asked on February 2, 2013
  45. Chemistry

    At elevated temperatures, SbCl5 gas decomposes into SbCl3 gas and Cl2 gas as shown by the following equation: SbCl5(g) SbCl3(g) + Cl2(g) 1. What is the concentration in moles per liter of SbCl5 in the container before any decomposition occurs? 2. What is

    asked on January 15, 2011
  46. Iron and Sulphur reaction

    Please give a particle diagram of the iron sulphur reaction

    asked on January 10, 2011
  47. Physics

    A ball of mass 0.640 kg moving east (+x direction) with a speed of 3.10 m/s collides head-on with a 0.780 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision? 1. ball originally at

    asked on November 24, 2009
  48. Physics

    A person walks 25.0 degrees north of east for 3.10 km. How far would another person walk due north and due east to arrive at the same location? I don't understand how I could calculate the needed distance accuratly. I used 3.1*sin(25) + 3.1*cos(25). But I

    asked on August 25, 2009
  49. finance

    In an online, real-time system, which of the following would be most likely to be used as backup for an application's master file maintained on magnetic disk? A) At specified periods the disk files would be dumped to (copied on) magnetic tape along with

    asked on August 2, 2009
  50. social studies

    hi can someone help me. What views did the southern democrats, westerners, northern radicals, and northern whigs have reforem movements in the 19th century

    asked on November 29, 2008
  51. Physics

    A 3700 kg statue is placed on top of a cylindrical concrete (Y = 2.3 1010 N/m2) stand. The stand has a cross-sectional area of 7.2 10-2 m2 and a height of 2.0 m. By how much does the statue compress the stand?

    asked on November 3, 2007
  52. Physics

    A relative density bottle of mass 25g has a capacity of 50cm 3 . The bottle is completely filled with methylated spirit, and its mass is 65g. The bottle is emptied and some salt is then put into the empty bottle and then weighed, the mass now is 50g.

    asked on May 13, 2020
  53. Math

    Suppose you buy a ticket for a raffle. The ticket price is $5 and the price is worth $200. If 100 tickets were sold. What is the prob that you will win the prize. How much money do you expect to win/lose?

    asked on March 11, 2020
  54. chemistry

    identify the substance that is is the oxidizing agent and the substance that is the reducing agent

    asked on April 13, 2019
  55. Statistics

    Problem Page In a recent study, males used a new weight-loss supplement, and all but of them experienced weight loss after two weeks. In the same study, females used the same supplement, and all but of them experienced weight loss after two weeks. Fill in

    asked on February 22, 2019
  56. Maths

    The curve y = ax^2 + bx + c touches the line y = 2x at the origin and has a maximum point at x = 1. Find the values of a, b and c. (answer: a = -1, b = 2, c = 0)

    asked on November 16, 2018
  57. Maths

    Find the smallest distance between the graphs y=x^2 - 4x + 12 and y=2x + 1. Thanks for any help Answer= 0.894427...

    asked on November 9, 2018
  58. Maths

    The length and width of a rectangular projector screen in a small theatre is 200% more than the length and width of a television screen in the same room. How much bigger is the area of the screen than that of the television? Give your answer as a

    asked on February 25, 2018
  59. Maths

    When I was not a king, he was subject to me. Now I am a king I am in jubject to him. Who am I?

    asked on February 13, 2018
  60. Trig

    a ship leaves port at 12:00 noon sailing at a bearing 193° measured clockwise from north. if the ship sails 20 knots, how many nautical miles south and how many nautical miles west will the ship have traveled by 6:00pm?

    asked on January 12, 2018
  61. Math

    2x^3 + x^2 - 5= 0 x=? What is the process I must do in order to get the answer?

    asked on September 4, 2017
  62. Math

    2x^3 + x^2 - 5= 0 x=? Is this possible to solve?

    asked on September 4, 2017
  63. Math

    A pair of pants costs twice as much as a shirt. The total cost of 1 1 pair of pants and 1 1 shirt is $18 $18 . If s represents the cost of 1 1 shirt, which equation could you use to find the cost of 1 1 shirt?

    asked on December 21, 2016
  64. Math

    A 2 digit even number is divided by 5. The quotient is a 1 digit even number. What are all the 2 digit numbers that fit this description ?

    asked on October 17, 2016
  65. Math

    Write and solve a real- world problem that can be solved using the expression 3/4 divided by 1/6?

    asked on September 22, 2016
  66. Physical science

    flammability is a material’s ability to burn in the presence of? A)hydrogen B)nitrogen C)oxygen D)carbon dioxide I think the answer is A am i right?

    asked on September 14, 2016
  67. Spanish

    Can someone who is good at Spanish (or fluent) please proofread these short stories I'm writing for my Spanish class? I am at a borderline grade right now, and if I can get a good grade on this assignment I can get pushed up to an "A". Thank you so much to

    asked on May 12, 2016
  68. Calculus

    Which of the following integrals represents the volume of the solid formed by revolving the region bounded by y=x^3, y=1, and x=2 about the line y=10? a) pi*∫from (8-1) of (10-y)(2-y^(1/3))dy b) pi*∫ from (1-2) of (81-(10-x^3)^2)dx c)2pi*∫from (1-8)

    asked on January 4, 2016
  69. Calculus - Derivative

    The curve is given by x^2+2r(sqrt(y))=xy What is dx/dy when r is constant?

    asked on May 8, 2015
  70. matter and energy

    how much heat must be added to 5.0 g of solid lead at 30 degrees celcius to convert it to liquid lead at the melting point?

    asked on October 1, 2014
  71. calculus hw

    What is the area bounded by y=x^2 and y=x^3-2x?

    asked on December 15, 2013
  72. physics

    An automatic dryer spins wet clothes at an angular speed of 4.4 rad/s. Starting from rest, the dryer reaches its operating speed with an average angular acceleration of 4.2 rad/s2. How long does it take the dryer to come up to speed?

    asked on July 16, 2013
  73. Physics

    A conductor of length 2m carrying a 1.5A current experiences a force of 2.2 N. What is the magnitude of the magnetic field that acts perpendicular to the flow of current in the conductor?

    asked on February 2, 2013
  74. chemistry

    At elevated temperatures, sodium chlorate decomposes to produce sodium chloride and oxygen gas. A 0.8915-g sample of impure sodium chlorate was heated until the production of oxygen gas ceased. The oxygen gas collected over water occupied 57.2 mL at a

    asked on November 20, 2012
  75. Chemistry

    Molarity of NaOH solution = 0.06115 Volume of NaOH used = 15.50 mL Volume of unknown Sample = 10.00 mL Find the Moles of NaOH used? Find the molarity of H3PO4? Thanks!

    asked on October 10, 2012
  76. Math

    Find the volume generated when the area bounded by the curve y^2 = 16x, from x = 0 to x = 4 is rotated around the x-axis.

    asked on August 21, 2012
  77. Moanalua Middle School

    One box contains six color cards: two blue, three yellow, and one orange. Another box contains four number cards, numbered 1, 2, 3, and 4. One card is picked at random from each box with replacement. find the probability of blue, then 1.

    asked on May 18, 2012
  78. College Algebra/Geometry

    What size should be the frame be? Suppose an artist has a circular picture with a diameter 6 inches which she wishes to frame by a uniform width frame with covers 1/2 inch width uniformity of the painting and has total area equal to that of the exposed

    asked on May 2, 2012
  79. Algebra

    8s^2-7t=0 Am I correct saying 2 real numbers?

    asked on March 19, 2011
  80. Science

    How many electrons are present in the outer shell of each element?

    asked on January 17, 2011
  81. math

    solve. x^2 + 6x + 13 = 0

    asked on December 11, 2010
  82. physics

    A child is twirling a 0.0100 kg ball on a string in a horizontal circle whose radius is 0.118 m. The ball travels once around the circle in 0.460 s. (a) Determine the centripetal force acting on the ball. (b) If the speed is doubled, does the centripetal

    asked on October 23, 2010
  83. Physics

    A bullet with a mass of 55 grams moving with a speed of 100 m/s slams into and wedges in a 1.9 kilogram block of wood supported by a string initially at rest. Which one, conservation of energy or conservation of momentum, can be applied to this situation?

    asked on October 14, 2010
  84. calculus

    A ball has bounce coefficient 0 < r < 1 if when it is dropped from height h, it bounces back to a height of rh. Suppose that such a ball is dropped from an initial height a and subsequently bounces infinitely may times. Find the total up-and-down distance

    asked on July 18, 2010
  85. psychology

    The primary difference between anorexia nervosa and bulimia nervosa is that anorexics

    asked on July 10, 2010
  86. math

    pierre was born in the twentieth century and will be x years old in the year x squared. In what year was pierre born

    asked on May 19, 2010
  87. Chemistry

    If you have the q cal of a reaction, then obviously you can convert to q chem by negating your q cal. But what if you need to get to q rxn (q of the reaction)? Also, my textbook is claiming that the q rxn = -(q sol + q cal). How does that figure into this?

    asked on April 1, 2010
  88. english

    are there any books I can read online about bank robberies or hostage situations for free

    asked on December 21, 2008
  89. history

    Hi. Can someone please help me find alot info for this question. In the 19th century there were many reform movements in america such as slaery, women's suffrage, prohibition, free public education, native american citizenship and many others. What views

    asked on November 28, 2008
  90. Chemistry

    From elements Arsenic to Antimony, which has the smallest Ionic Radius and why.

    asked on January 8, 2008
  91. science

    Trees are renewable resources, aren't they? Because when people cut them down, you can just plant new ones. However, is the wilderness renewable? If not, how can this be? I am reading A Sand County Almanac and Leopold says that wilderness is a resource

    asked on October 13, 2007
  92. More Darn Physics

    what force must be exerted on an electron to move it from a state of rest to a speed of 3.5 x 10^7 m/s in a distance of 0.75 m? Look up the mass of the electron and call it m. Then compute the required acceleration a, using V = sqrt(2 a X) (Solve that for

    asked on October 3, 2006
  93. Physics

    An 1800-kg car starting from rest accelerates constantly during the first 9.50 s of its motion. If the force acting on the car is 2150 N, what is the car;s speed at the end of this time? 2150 N = 1800 kg. (a) a = 1.194 (1.194)(9.5 s) = 11.347 m/s correct?

    asked on October 3, 2006
  94. math

    Tara will draw a scale model of the garden she wants to plant. Her scale will be 1cm. = 2.5 ft. What will be actual dimensions of Tara's garden?

    asked on April 10, 2019
  95. math

    Bill takes a lot of $9,000 and an 8% simple interest rate for 6 years How much interest will Bill pay after 2 years? How much interest will he pay in total for the loan ? $720.00;3,600.00 $1,408.00;4,224.00 $36,000.00;12,000.00 $1,440.00;$4,320.00* check

    asked on February 21, 2019
  96. Physics

    Is there any difference in the effect of linear dilation in between a bar and a hollow bar? Which ones dilates the most? My guess is that the hollow bar as there is less material, so it can be heated up faster. I don't know if I am correct.

    asked on February 11, 2019
  97. Maths

    Find the area enclosed between the curves y=(x-1)^2 and y=5-x^2. Answer is 9. Thanks for any help provided

    asked on January 28, 2019
  98. Maths

    A cone shaped vessel has a height of twice its radius. If I fill the vessel with water to a depth of 10 cm, find the volume of water to the nearest cm^3. Answer is 262

    asked on January 4, 2019
  99. Maths

    Helen has just retired with $500 000 in her account and wishes to start an annuity. She intends to withdraw $M at the end of each year for 30 years. Reducible interest is calculated at 6% p.a., compounded annually just before each withdrawal. a) Calculate

    asked on November 26, 2018
  100. Maths

    Two sides of a rectangle lie along the x and y axes. The vertex opposite the origin is in the first quadrant and lies on 3x + 2y = 6. What is the maximum area of the rectangle? Answer: 1.5 Thanks for any help

    asked on November 19, 2018


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