1. Algebra

    Hi, I have had to work on several of these types of problems with no success. Could someone help me make the process easier? I have spent many hours with inconsistent results. A company offers their employees two medical insurance plans; Plan A has a $130

    asked by Aria on June 19, 2011
  2. history

    Why did the Watergate break-in occure? a. the Nixon White House wanted to get Daniel Ellsberg's psychiatric records b. the Committee to Reelect the President wanted to wiretap the Democratic National Committee c. the Committee to Reelect the President

    asked by history on April 14, 2009
  3. AP Physics: shot projectile??

    The cannon on a pirate ships shoots cannon balls with a speed of 350 m/s (the muzzle velocity). The cannon can be adjusted to shoot at any elevation above the horizontal. The barrel is 2m long and the mass is 5 kg. Ignoring air resistance and assuming the

    asked by Tyger2020 on September 5, 2017
  4. math

    How could I solve c) and d) without the use of derivatives for the following question? It is estimated that, t years from now, the amount of waste accumulated, Q, in tonnes, will be Q(t)= 10^4(t^2+15t+70) tonnes, t is greater than or equal to 0, t is also

    asked by kim on February 12, 2018
  5. Physics

    In a 1-dimensional problem, a single force acts on a 10 kg object and is given the equation F=ax+b where a=250 N/m, b=25 N, x is position of object. There is a force acting on the object while that object moves from x=0 to x=2 lasting 3 sec. 1) What is the

    asked by Diana on November 12, 2013
  6. Science

    Heyylllooo x can anybody help me with my science homework ? You have to " Use detailed particle diagrams and the big idea of energy transfer to explain how the ear defenders work" Also, we have to draw a picture of the ear defenders and describe all the

    asked by Paiigee (: on October 20, 2008
  7. college-- chemistry

    I am having a problem with this problem from my homework. I need some help on this problem. Microwave ovens work by irradiating food with microwave radiation, which is absorbed and converted into heat. Assume radiation with wavelength=15.0cm is used and

    asked by shylo on February 15, 2009
  8. Accounting

    When finding the break even point, I know that total fixed costs/contribution margin= Break Even Point, but is that answer in dollars? How do you find the sales volume (dollars) that need to be produced in order to break even? How do you find the required

    asked by Katherine on April 25, 2012
  9. pre-calculus

    a cliff is 125ft high. the angle of depression of a ship from the top of the cliff is 14.6 degrees. determine the distance of the ship from the foot of the cliff. so the angle to the right of the 90 is 14.6 and the side opp. that is 125ft. how do i find

    asked by sam on March 28, 2007
  10. chemistry

    A technician needs to determine the concentration of lead ions in a sample of water a) Suggest a test chemical that can be added to the water sample to preciitate the lead ions. Show a chemical euation for the formation of the precipitate b) after a

    asked by Kelsey on August 13, 2010
  11. Chem

    What is the molarity of a solution made by dissolving 4.14 g of sodium acetate in water and diluting to 750. mL? (molar mass NaC2H3O2 is 82.0 g/mol.) .67137, but that wasn't right. An open-ended mercury manometer is used to measure the pressure exerted by

    asked by Anonymous on December 3, 2012
  12. chemistry

    2. Bromine can be added to limonene to create a brominated compound. The balanced equation is shown below. When 613 mg of limonene and 3.5 mL of a 10% (v/v) solution of Br2 in dichloromethane (a solvent) are combined, 959 mg of the product is isolated.

    asked by Grace on February 23, 2010
  13. Physics

    Two point charges, Q1 = -6.7 µC and Q2 = 1.2 µC are located between two oppositely charged parallel plates. The two charges are separated by a distance of x = 0.32 m. Assume that the electric field produced by the charged plates is uniform and equal to E

    asked by Peace on January 29, 2008
  14. Plz, check my answers.

    1. Which of the following is not a function of the circulatory system? breaks down large molecules delivers oxygen to body cells **** takes carbon dioxide away from body cells fights infection 2. Which of the following explains why the heart is organized

    asked by Princess Anna on May 10, 2014
  15. Science-3 question

    1. Which of the following is not a function of the circulatory system? breaks down large molecules delivers oxygen to body cells **** takes carbon dioxide away from body cells fights infection 2. Which of the following explains why the heart is organized

    asked by Princess Anna on May 10, 2014
  16. Physics

    I need to plot a projectile motion graph...I am confused..my numbers don't work at all. The equations I have are the one for the dx component and the dy component. I did the dx values with this equation dx=(vcostheta)(time) the dy should be this:

    asked by physics sucks but PLEASE help on September 21, 2007
  17. Physics

    A car is moving such that its kinetic energy is 6.20×105 J. The car accelerates and the engine does 2.90×105 J of work to accelerate the car. What is the final kinetic energy of the car? Ignore energy lost to friction. (Your answer must be accurate to at

    asked by Anonymous on April 20, 2016
  18. Physics

    One kilowatt-hour (kWh) is the amount of work or energy generated when one kilowatt of power is supplied for a time of one hour. A kilowatt-hour is the unit of energy used by power companies when figuring your electric bill. Determine the number of joules

    asked by Candy on February 29, 2012
  19. physic

    A 2000 N sled is pulled along a horizontal surface with a constant force by means of a rope that makes an angle of 30.0o with the horizontal. If the tension in the rope is 500 N and there is 100 N of frictional force between the sled and the surface, find

    asked by sk on May 8, 2016
  20. physics

    A car is moving such that its kinetic energy is 2.20×105 J. The car accelerates and the engine does 2.10×105 J of work to accelerate the car. What is the final kinetic energy of the car? Ignore energy lost to friction. (Your answer must be accurate to at

    asked by Anonymous on November 9, 2010
  21. Physics

    A car is moving such that its kinetic energy is 6.20×105 J. The car accelerates and the engine does 2.90×105 J of work to accelerate the car. What is the final kinetic energy of the car? Ignore energy lost to friction. (Your answer must be accurate to at

    asked by Kevin on April 15, 2016
  22. MATH

    DAN,DEBBIE,ED AND GENE WERE TRAINING FOR CROSS-COUNTRY RACING. ED RAN TWICE AS FAR AS DEBBIE. GENE RAN 8KM LESS THAN ED. DEBBIE RAN 5KM MORE THAN DAN. DAN RAN 6KM.HOW FAR DID EACH PERSON RUN? (HINT START WITH DAN'S DISTANCE AND WORK BACKWARDS)

    asked by STELLA on October 11, 2011
  23. art

    Choose three (3) works of art from three artists from the Baroque period through the Postmodern era. Your three (3) works of art should come from the time periods or art movements covered in the reading from Unit 4 and Unit 5. Your choices must comply with

    asked by Anonymous on September 14, 2009
  24. Technology

    When using a line graph, why is it inportant to only graph 1 - 3 series of data? A line graph in Microsoft Excel will not allow you to graph more than 3 series of data. It will not show changes over time of you use more than 3 series of data. The lines are

    asked by Estephania on January 18, 2016
  25. AP Chem

    A student performs an experiment to determine the enthalpy of neutralization of hydrochloric acid and sodium hydroxide. The student combines 25 mL of equimolar solutions of acid and base, both having an initial temperature of 22.5 C, in an open polystyrene

    asked by Rachel on March 22, 2011
  26. Music

    I want to make sure these answers are right. The answers are put between two stars(*). 1. The overture to A Midsummer Night's Dream is a one-movement work A. famous for the interplay of piano, violin, and cello. B. known for the massive sound of the

    asked by Adriana on June 30, 2016
  27. History

    1. Which of the following is not a way that constitution grant governments power? A. They explain the purpose of the government B. They set up the structure of the government C. They identify from which states federal government leader will come*** D. They

    asked by Charlotte Dunois on April 5, 2019
  28. health

    When comparing hemodialysis and peritoneal dialysis, it can be said that A. hemodialysis takes longer than peritoneal dialysis. B. peritoneal dialysis involves the removal of blood from the patient. C. hemodialysis is a step closer to the need for

    asked by Jackie on June 30, 2010
  29. Math

    At the Spring Field day students are given one chance to spin a spinner and win a prize. The spinner has 4 equal sections. One of the sections has a color on it, and the other three sections have a number on them. To win, the spinner must stop on a section

    asked by ILTHSM_ on April 1, 2019
  30. Chemistry (w.e or DrBob222)

    Calcium Carbonate and aluminum silicate are mixed together and heated. A mixture of calcium oxide, carbon dioxide, aluminum oxide and calcium silicate is produced. Write the balanced equation for this reaction. My Work: 4CaCO3(s) + Al2(SiO3)3(s) → CaO(s)

    asked by Jim on January 29, 2011
  31. Physics

    1) A car moving along a straight stretch of road at 60 mph [26.7 meters/sec]. The driver makes slams on his breaks locking them so that the car skids to a stop. Assume a constant braking force due to friction, and a kinetic friction coefficient of 0.70

    asked by Anonymous on August 6, 2014
  32. World history

    During early civilizations why did most cities rise in river valleys? a.River valleys provided work to men who built dikes and canals b.People built cities on riverbanks for easy access to travel and trade c.city-state goverment centers were located in

    asked by alley on December 15, 2010
  33. Physics

    Some how TRAIN A travelling at 36 m/s, is accidentally sidetracked onto the train track for TRAIN A. The TRAIN A engineer spots TRAIN A 100 m ahead on the same track and travelling in the same direction. The engineer jams on the brakes and slows TRAIN B at

    asked by Taylor on January 14, 2011
  34. CHEMISTRY

    Estimate the enthalpy of combustion of methane in kJ.mol^-1 CH4(g) + 2O2(g) ------> CO2(g) + 2H2O(g) Bond Dissociation Enthalpies /kJ.mol^-1 Single Bonds Double Bonds C C 350 C O 732 C H 410 O O 498 O H 460 C O 350 O O 180 A. 668 B. 540 C. –540 D. –668

    asked by Anonymous on November 19, 2017
  35. chem

    What is the freezing point (°C) of a solution prepared by dissolving 11.3 g of Ca(NO3)2 (formula weight = 164 g/mol) in 115 g of water? The molal freezing point depression constant for water is 1.86 °C/m. whats wrong with my answer: molal: 0.069 moles

    asked by jessie on September 26, 2010
  36. College Algebra

    If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in take-home pay, then the amount you earned before the

    asked by Nancy on April 18, 2011
  37. College Algebra

    If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in take-home pay, then the amount you earned before the

    asked by Nancy on April 18, 2011
  38. Calculus

    A girls throws a tennis ball straight into the air with a velocity of 64 feet/sec. If acceleration due to gravity is -32 ft/sec2, how many seconds after it leaves the girl's hand will it take the ball to reach its highest point? Assume the position at time

    asked by Kait on February 27, 2018
  39. College Algebra

    If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in take-home pay, then the amount you earned before the

    asked by Nancy on April 18, 2011
  40. Math

    2. A survey about the student government program at a school finds the following results: 190 students like the program, 135 students think the program is unnecessary, and 220 students plan on running for student government next year. If a circle graph

    asked by Reeses on March 27, 2017
  41. Chemistry

    Titration of 25.00 mL of a monoprotic acid solution with 0.2269 M NaOH is: Initial NaOH = 3.96 mL Final NaOH = 38.84 mL (dif is 34.88mL) Based on data what is the molar concentration of acid? I did V x M = 0.03488L NaOH x 0.2269 = 0.079143 Not sure if I

    asked by Terry on December 7, 2012
  42. science

    could someone please help me i have to write about the start of life on a extrasolar planet and talk about chemical evolution,, could someone please give me some pointers Is this S103 ECA? yes it is im just need some pointers so that i can do the work in

    asked by bex on May 18, 2007
  43. Algebra II/ Trig

    Should the triangle be solved beginning with Laws of Sines or Laws of Cosines. Then solve the triangle and round to the nearest tenth. a=16, b=13, c=10 I got this answer but it is wrong and don't understand where I made the mistake. a=16, b=13, c=10

    asked by Sha on March 14, 2009
  44. Math (Business)

    Find the value of the ordinary annuity at the end of the indicated time period. The payment​ R, frequency of deposits m​ (which is the same as the frequency of​ compounding), annual interest rate​ r, and time period t are given. amount ​1,000​;

    asked by Braxton on March 1, 2017
  45. Math

    Water is filled into a tank of base 40 cm x 40 cm. the water level rises 7.5 cm when 5 identical small marbles and 5 identical large marbles are into into the tanks and sick. If the volume of a large marble if two times that of the small one, what are the

    asked by kay on February 10, 2007
  46. Physics

    A 1.00 g mass hangs by a string next to an identical stationary mass. When both masses are given identical positive charges, the hanging charge swings out 3.00 cm from the vertical so that its string makes an angle of 30.0 degrees with the vertical. Find

    asked by Katie on June 13, 2007
  47. physics

    A 0.200 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. (a) What is the mass of the second ball? (b) What fraction of the original kinetic

    asked by jim on November 9, 2006
  48. science(chem)

    Calculate the binding energy per nucleon for the following nuclei: a: 12C(nuclear mass, 11.996708 amu) 6 ------- b. ^37Cl(nuclear mass, 36.956576) i'm confused on how to solve and if theres a specific formula for this... please help thank you add the

    asked by Jina on January 9, 2007
  49. statistics

    Use Bayes' theorem to solve this problem. A storeowner purchases stereos from two companies. From Company A, 150 stereos are purchased and 7% are found to be defective. From Company B, 900 stereos are purchased and 9% are found to be defective. Given that

    asked by Sam on February 26, 2008
  50. geometry

    the volume of a larger prism is 128 cubic cm. if the prisms are similar with linear ration of 4:3, what is the volume of the smaller prism? We have a theorem that says The volumes of similar objects are proportional to the cubes of their sides. So let the

    asked by Emily on April 26, 2007
  51. Physics

    Due to interference, a thin film reflects no orange light...it appears dark. If you double its thickness and illuminate it again with orange light, what will you see? Choose one answer only. It will appear dark again. It will appear bright (strongly

    asked by Shae on March 3, 2018
  52. terminology

    When comparing hemodialysis and peritoneal dialysis, it can be said that A. hemodialysis takes longer than peritoneal dialysis. B. peritoneal dialysis involves the removal of blood from the patient. C. hemodialysis is a step closer to the need for

    asked by Kimberly on May 11, 2009
  53. health

    When comparing hemodialysis and peritoneal dialysis, it can be said that A. hemodialysis takes longer than peritoneal dialysis. B. peritoneal dialysis involves the removal of blood from the patient. C. hemodialysis is a step closer to the need for

    asked by Linda on June 30, 2010
  54. Plz Help. I am lost!!!Human Anatomy and Physiology

    1. Macroscopic Neurology – trace impulse macroscopically through the nervous system from the brain to the muscle 2. Microscopic Neurology – trace impulse as it passes through the neuron, neuron to neuron, and across the NMJ 3. Sliding Filament Theory

    asked by angel on January 31, 2010
  55. English

    Which of the following are characteristic of the growth of realism? An embracing of the ideals but not the methodology of later romanticism, a focus upon the lower classes, and a "slice of life" approach A reaction against romanticism, a reaction against

    asked by Anonymous on November 17, 2011
  56. Physics

    You buy yourself a new Lamborghini which can accelerate from 0 to 62 mph in 2.5 seconds. 1.) what is the magnitude of the car's acceleration in SI units? 2.)the latest figures on speeding related car accident fatalities show 32788 deaths per year in the

    asked by Juanita on February 9, 2014
  57. Chemistry

    Sulfur dioxide reacts with chlorine at 227 oC: SO2(g) +Cl2(g) ↔ SO2Cl2(g) Kp for this reaction is 5.1 x 10-2 atm-1. Initially, 1.00 g each of SO2 and Cl2 are placed in a 1.00 L reaction vessel. After 15 minutes, the concentration of SO2Cl2 is 45.5

    asked by JOhn Boku on February 22, 2015
  58. System Analysis &Design

    What should my entities be? Consider the following situation. A manufacture of computers receives orders from customers through its sales office. Each order can have several products in it (different types of computers, lap tops, monitors, and other

    asked by Lapri on April 27, 2009
  59. physics

    I'm reposting this one because I'm still stuck... A uniform rod of mass M and length d is initially at rest on a horizontal and frictionless table contained in the xy plane, the plane of the screen. The rod is free to rotate about an axis perpendicular to

    asked by tyger2020 on December 23, 2018
  60. Language Arts Help

    Georgia O'Keeffe was one of the most famous painters of the twentieth century. At a time when a few women achieved great success as artists, she dazzled the world with her enormous canvases of brightly colored flowers and her rustic renderings of the

    asked by Sahara on October 25, 2016
  61. physics

    A small boy blows a big soap bullet at a birthday party where the room is illuminated with yellow light of wavelength 600 nm. a) What is the colour of the soap bubble? Give reasons for your answer. b) Estimate the thickness of the soap bubble. [Refractive

    asked by aiman on August 14, 2015
  62. Social Studies

    Which of the plans is best for the nation? In what ways is the plan best for African Americans? In what ways is the plan best for former Confederates? In what ways is the plan best for the nation’s future? Explain why the other two plans would not work.

    asked by Aria on May 16, 2016
  63. math

    John and Paul work together at a music store. In one afternoon, they sold a total of 41 CDs. If Paul sold 9 more CDs than John, how many CDs did John sell?

    asked by alisha on September 23, 2010
  64. Introducing Literature

    The term bibliotheraphy means a. using books to give children insights into life problems a. helping people who can't read. c. using books to solve life's problems d. sharing joy with children My book says; "To help children with life problems, questions,

    asked by Anonymous on July 6, 2009
  65. algebra

    Can someone please help me with these problems? Please and thank you. 1)Solve the equation: (1/x)+[x/(x+2)]=1 2)Simplify the complex fraction: 3-(3/4) ------- (1/2)-(1/4) (1/x)+ [x/(x+2)] = 1 Convert left side to the sum of fractional terms with common

    asked by Lydia on May 13, 2007
  66. physics

    A trained dolphin leaps from the water with an initial speed of 12 m/s. It jumps directly towards a ball held by the trainer a horizontal distance of 5.50 m away and a vertical distance of 4.10 m above the water. In the absence of gravity the dolphin would

    asked by Tom on May 20, 2012
  67. English

    I forgot to include the following statements. Thank you very much!! 1)He fears that when Caesar will become (becomes) king he will turn into a dictator depriving the Romans of their liberty. 2)The ghost asks Hamlet to take revenge for his death (murder)

    asked by Franco on February 21, 2010
  68. thermodynamics

    A volume of gas V at temperature T1 and pressure P is enclosed in a sphere. If is connected to another sphere of volume V/2 by a tube and stop cork. This second sphere was initially evacuated and the stop cork is closed. If the stop cork is now opened and

    asked by frank fred on March 31, 2012
  69. Chemistry(Please check, thank you)

    For an experiment on the effect of a buffer solution, I need to calculate the expected pH of the buffer. I know that I have to make an amounts table and use the Hasselbalch equation to find the pH. For the first part, 0.10M HCl was added to a buffer. The

    asked by Hannah on March 29, 2012
  70. chemistry

    For reactions in solution, molar concentrations are usually used in equilibrium constant expressions (designated by K or Kc). In gases, partial pressures can also be used (designated by Kp). Equilibrium partial pressures of NOCl, NO and Cl2 in a container

    asked by alex on April 10, 2013
  71. Chemistry

    The indicator HIn has a dissociation constant of 1*10^-4 M. HIn H30^+ + In^- Yellow Red When the pH value of the solution is 7, 1)the indicator shows the colour red 2)at this time most of the indicator has been dissociated Which statements are true? 1)I

    asked by Anna on July 19, 2017
  72. Algebra

    A student keeps track of his target heart rate when he is exercising. The range for the number of heart beats per minute R for someone his age is /R-136/ less than or equal to 20. Determine the solution to the inequality. I believe the answer is:

    asked by Blake on October 24, 2015
  73. Chemistry

    An industrial chemist studying bleaching and sterilizing prepares several hypochlorite buffers. Find the pH of the following buffers. (a) 0.090 M HClO and 0.090 M NaClO (b) 0.090 M HClO and 0.135 M NaClO (c) 0.135 M HClO and 0.090 M NaClO (d) One liter of

    asked by Edward on March 4, 2013
  74. Chem Help

    You are given several grams of solid sodium chloride and water and asked to make a solution. Explain what happpens on a molecular level as sodium chloride dissolves in the water. The solid (which is a network of ions) breaks apart, and the sodium ions are

    asked by Alisha on January 8, 2007
  75. English Essay

    Directions: We are doing a problem- solution essay so I chose to right about Cyberbullying. It's supposed to be six paragraphs. So after your finished reading this could you please give me a comment on it, and a letter grade thanks. Cyberbullying

    asked by Marie on May 8, 2010
  76. MATHS

    I have three questions: 1. What is the remainder when 27 to the power of 1001 is divided by 13? 2. What is the remainder of when 38 to the power of 101 is divided by 13? 3. How do you show that 70 x 27 (to the power of 1001) + 31 x 38(to the power of 101)

    asked by JOHN on July 9, 2008
  77. physics(check my answer)

    can you tell me what i did wrong on this problem Rigid rods of negligible mass lying along the y axis connect three particles. The system rotates about the x axis with an angular speed of 3.30 rad/s. 4kg,y=3.00m 2kg,y=-2.00m 3kg,y=-4.00m a)Find the total

    asked by phys on April 6, 2010
  78. chemistry

    can you tell me what i did wrong on this problem Rigid rods of negligible mass lying along the y axis connect three particles. The system rotates about the x axis with an angular speed of 3.30 rad/s. 4kg,y=3.00m 2kg,y=-2.00m 3kg,y=-4.00m a)Find the total

    asked by phys on April 8, 2010
  79. Geography (Ms. Sue)

    1). What three factors have contributed to the success of the American economy? 2). What are the geographic origins of some American musical styles? 3). What invention made life in the suburbs possible? My answers to these questions are the following: 1).

    asked by Anonymous on September 12, 2013
  80. Calculus - ratio test

    infinity of the summation n=1: (e^n)/(n!) [using the ratio test] my work so far: = lim (n->infinity) | [(e^n+1)/((n+1)!)] / [(e^n)/(n!)] | = lim (n->infinity) | [(e^n+1)/((n+1)!)] * [(n!)/(e^n)] | = lim (n->infinity) | ((e^n)(e^1)(n!)) / ((n+1)(n!)(e^n)) |

    asked by COFFEE on July 29, 2007
  81. Biology

    The human gene for the production of lactose is on chromosome 2. The dna nucleotide sequence of a small part from the middle is 123456789 TACTCGGAA I haVeTO WRITe DOWN THE EQVIVALENT SEQUENCE FOR MRNA AND HENCE WORK out the sequence of amino acids coded in

    asked by Bex on March 25, 2007
  82. chem 101

    Biphenyl (C1 2H1 0) burned in a bomb calorimeter in order to determine its heat of combustion. The heat capacity of the calorimeter was 5.86 kJ/°C When 0.514 g of biphenyl was burned, the temperature of the calorimeter increased from 25.8 °C to 29.4 °C.

    asked by Anonymous on April 11, 2012
  83. chem 101

    Biphenyl (C1 2H1 0) burned in a bomb calorimeter in order to determine its heat of combustion. The heat capacity of the calorimeter was 5.86 kJ/°C When 0.514 g of biphenyl was burned, the temperature of the calorimeter increased from 25.8 °C to 29.4 °C.

    asked by Anonymous on April 11, 2012
  84. ISDS

    The optimal total shipping cost in a minimization transportation model is $622, and the reduced cost from source node 1 to destination node 6 is $6. This implies that if one were to deviate from the optimal solution by shipping one unit from node 1 to node

    asked by jamaal on March 13, 2012
  85. Earth Science

    Hello! I try to do my homework to the best of my ability. I want to make sure that my answers are correct. My answers will be (*). Please help me if you can.... 1. _______ was the first person to propose the idea of moving continents as a scientific

    asked by TazKiyah on June 5, 2014
  86. english grammar

    Johari Window can you use for apply for yourself. The Johari Window is a simple graphic model that shows how you see yourself, how other people see you, what you hide for other people and the complete unknown. Johari Window learns you express your feeling,

    asked by popely q on December 20, 2011
  87. chemistry

    Methanoic acid HCO2H(aq) also known as formic acid, is partly responsible for the characterisitic itchy rash produced by the leaves of the stinging nettle plant. Calculate the pH of 0.150 mol/L methanoic acid. The Ka for methanoic acid is 1.8 x 10^-4. My

    asked by Sarah on April 6, 2008
  88. prob and stats

    –/3 points Notes Question: TanColM7 8.6.003. TKK Products manufactures electric light bulbs in the 50-, 60-, 75-, and 100-watt range. Laboratory tests show that the lives of these light bulbs are normally distributed with a mean of 774 hr and standard

    asked by br0Ok3 on October 15, 2010
  89. programming

    I have been stuck on this problem in my software design class and I hate going in these places and looking stupid but my professor had a family emergency and my homework is due tomorrow night. Design a program in pseudocode that calculates the amount of

    asked by howard on October 30, 2009
  90. English

    I need you to check these sentences. I would like to rephrase n.1-2, too. Thank you very much!! 1)Describe how Mr Gradgrind is portrayed by Dickens in Chapter 2 of Hard Times. What is his surname symbolic of? How does he address his pupils and what kind of

    asked by Henry on March 8, 2012
  91. statistics

    –/3 points Notes Question: TanColM7 8.6.003. TKK Products manufactures electric light bulbs in the 50-, 60-, 75-, and 100-watt range. Laboratory tests show that the lives of these light bulbs are normally distributed with a mean of 774 hr and standard

    asked by br0Ok3 on October 15, 2010
  92. World Geography

    Which statements describe the European Union (EU)? 1) Citizens of EU nations can live, work, or study in any member nation. 2) Passports must be presented by citizens when traveling between EU nations. 3) Tariffs between member nations were ended in 1968.

    asked by kadi on February 21, 2011
  93. English

    need some advice! My learners will work on a text next week.In the text are 7 new words. The aim of the lesson is to learn those words and practice them in a few ways. What can I do to practice those new words. Any interesting ideas from your own

    asked by refy on April 6, 2010
  94. physics

    A block sits against a vertical wall and a 120 lb force P acts diagonally to the left on the block at an angle below the horizontal. Determine the magnitude and direction of the friction force which the vertical wall exerts on the 100 lb block if theta is

    asked by Jessi on September 13, 2009
  95. Physics

    A 7.80-g bullet moving at 530 m/s penetrates a tree trunk to a depth of 6.2 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. (b) Assuming the friction force is constant, determine how much time elapses

    asked by Dani on May 3, 2011
  96. Math

    On Wednesday you drove from home to work at 50 mph and got there in 43 minutes.  On Thursday you drove at 68 mph.  Round answers to nearest 10th.  Use:  R 1 T 1 = R 2 T 2   (double click this to see clearer) Round to the nearest 10th and Use Unit

    asked by A'layja on January 25, 2017
  97. HELPPPP!!!!

    One car traveling at 55mi/h left a certai place 3h later than another car. The second car was traveling in the same direction at 40 mi/h. Inhow many hours ill the faster car ovrtae the other? My work: 55(t-3) = 40t] 55t-165 = 40t -55t -55t -165 = -15t /-15

    asked by Claudizzle on October 7, 2009
  98. ECON

    You’ve recently learned that the company where you work is being sold for $500,000. The company’s income statement indicates current profits of $25,000, which have yet to be paid out as dividends. Assuming the company will remain a “going concern”

    asked by Chante on September 7, 2015
  99. Algebra (Different Problem)

    One car traveling at 55mi/h left a certai place 3h later than another car. The second car was traveling in the same direction at 40 mi/h. Inhow many hours ill the faster car ovrtae the other? My work: 55(t-3) = 40t] 55t-165 = 40t -55t -55t -165 = -15t /-15

    asked by Claudizzle on October 7, 2009
  100. physics

    A sled loaded with bricks has a total mass of 23.0 kg and is pulled at constant speed by a rope inclined at 40.0o above the horizontal. The sledge moves a distance of 12.0 m on a horizontal surface. The coefficient of kinetic friction between the sledge

    asked by lib on October 10, 2012

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