1. Math

    PLZ ANSWER: The plan of a park is at a scale of 1:5000. Calculate the actual distance between two points if the distance between two points on the map is: a)2 cm (How many meters?) b)2.8 cm (Give answer in meters) c) 7cm (Meters)

    asked by Clarissa on February 4, 2017
  2. Chemistry

    If you have 225 grams of Ca3(PO4)2, and 185g H3PO4; calculate which is the limiting reagent, which the XS reagent, and how much product you will produce from the limiting reagent (in grams) Ca(PO4)2 + 4H3PO4 = 3Ca(H2PO4)2

    asked by Emily on April 7, 2015
  3. chemistry

    calculate the half-life of a first- order reaction if the concentration of the reactant is 0.0396 M at 12 seconds after the reaction starts and is 0.00579 M at 47 after the reaction starts. How long does it take for the reactant concentration to decrease

    asked by saud on November 18, 2011
  4. Chemistry II

    Calculate the enthalpy for the following reaction: 4 NH3 (g) + 5 O2 (g) into 4 NO (g) + 6 H2O (g). You may only use the following information: N2 (g) + O2 (g) into 2 NO (g); Delta Hf = 180.6 kJ N2 (g) + 3 H2 (g) into 2 NH3 (g); Delta Hf = -91.8 kJ 2 H2 (g)

    asked by Mandy on November 29, 2009
  5. eec115 electrical and electronic engineering science

    two capacitor having capacitance of 10uf and 5uf are connected in series and this combination is connected in parallel with a 20v supplies this parallel combination calculate the charge on each capacitor .the voltage across the 10uc capacitor.

    asked by brownson uwem okon on March 26, 2017
  6. chem

    The speed of your ship in still water is 20 knots.Your ship traveled 70 miles downward in channel in the same amount of time it traveled 45 miles upward the channel.Calculate the rate of the channel current.

    asked by joe on July 22, 2013
  7. Science

    At 0°c and 760mm hg pressure, a gas occupies a volume of 100cm cube. The Kelvin temperature of the gas is increased by one - fifth while the pressure is increased one and a half times. Calculate the final volume of the gas.

    asked by Richa on June 30, 2015
  8. Math

    From a window A,10m above the ground, the angle of elevation of the top C of a tower is x degrees,where tan X=5/2 and the angle of depression of the foot D of the tower is y degrees, where tan y=1/4.calculate the height Cd of the tower in metres.

    asked by Naina on July 10, 2016
  9. Physics

    A string (A) hanging from the ceiling has a 1 kg mass attached to it and hanging below this mass is string (B) with a 2 kg mass attached. Both of the strings are massless. How do I calculate the tension in Cord B? I have tried several times with different

    asked by Ashley on November 24, 2009
  10. chemistry

    Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.150 M HClO(aq) with 0.150 M KOH(aq). The ionization constant for HClO is 4.0x10^-8. pH before the addition of any KOH? pH after the addition of 25 mL of KOH? Please show the

    asked by Francesca on March 10, 2015
  11. physics

    Assume the height of a hill is 50m, calculate: a.the velocity of a car at the bottom ofg the hill b.the height at which it will have half the speed. Assume the car starts from rest at the top of the hill.

    asked by bola on February 23, 2010
  12. math

    Sam's car gets 20.2 miles per gallon, and her gas tank can hold 18 gallons of gas. How many miles can sam travel if she uses all of the gas in the tank? Please round to the nearest dollar. Estimate: Calculate:

    asked by Jessa on January 27, 2014
  13. physics..

    Angular diameter of sun is 17" when measured from north pole and south pole of earth. Calculate distance of sun from earth if diameter of earth is 12800km. kindly help me to solve this question..

    asked by Anonymous on May 21, 2011
  14. math REALLY need help please

    A guy wire is 11.2m long. It supports a vertical power pole. The wire is fastened to the ground 9.87m from the base of a 5.3m tall pole. Calculate the measure of the guy wire and the ground

    asked by Danielle D on September 10, 2012
  15. Chemistry

    Calculate the value of Z and its absolute standard deviation. All standard deviations shown are absolute. Show your work and report the standard deviation in the result with two significant digits (to confirm the correct result). Z =

    asked by Adam on October 3, 2016
  16. Math

    Hi, so I am supposed to calculate the volum of my prism as if it were a prism. I know I'm supposed to to do Volum=1/3* area of the base* height. But I get confused can you please help me. These are the measurements of my prism. Length=5cm Width=17cm

    asked by Callie on February 23, 2015
  17. Math

    A guy wire 11.2m long. It supports a vertical power pole. The wire is fastened to the ground 9.87m from the base of a 5.3m tall pole. Calculate the measure of the guy wire and the ground

    asked by Danielle on August 31, 2012
  18. chemistry

    calculate the half-life of a first- order reaction if the concentration of the reactant is 0.0396 M at 12 seconds after the reaction starts and is 0.00579 M at 47 after the reaction starts. How long does it take for the reactant concentration to decrease

    asked by saud on November 18, 2011
  19. Pre-algebra

    If m is the number of minutes a taxi ride lasts, then 2 + 0.35m can be used to find the cost of a taxi ride with Bill's Taxi Company. How much will it cost for a 12-min taxi ride? I don't understand how to calculate this, thank you!

    asked by Susan on August 31, 2012
  20. Chemistry

    Calculate the work done when 70.0g of tin dissolves in excess acid at 3.00 atm and -15.0 C. Sn(s)+2H^+(aq) -> Sn^2+(aq)+H2(g) Assume ideal gas behavior. Any ideas? I've come up with a few different answers and can't come to a conclusion. I see the

    asked by Doug on September 15, 2006
  21. Gases - van der waals

    It turns out that the van der Waals constant b equals four times the total volume actually occupied by the molecules of a mole of gas. Using this figure, calculate the fraction of volume in a container actually ocupied by Ar atoms (a) at STP, (b) at 100

    asked by Jenn on December 7, 2006
  22. easy geometry

    Can you please show you solution and final answer here. Thanks! 1.Find the altitude,perimeter and area of an isosceles trapezoid whose sides have lengths 10 cm, 20 cm, 10 cm and 30 cm. 2. The formula A=P(a+r)^2 is used to find the amount of money A in an

    asked by cyrus on December 14, 2014
  23. Math

    An aircraft pilot wishes to fly from an airfield to a point lying S20oE from the airfield. There is a wind blowing from N80oE at 45 km/h. The airspeed of the plane will be 550 km/h. (a) What direction should the pilot steer the plane (to whole degree)?

    asked by Jerome on October 2, 2018
  24. Please Help!!!!!!

    Decide whether the following problem can be solved using precalculus, or whether calculus is required. If the problem can be solved using precalculus, solve it. If the problem seems to require calculus, explain your reasoning and use a graphical or

    asked by Anonymous on January 9, 2012
  25. physics

    A projectile is fired with muzzle velocity v uphill over ground that slopes at an angle α to the horizontal. If the angle of projection is θ to the horizontal: i) show that the horizontal range is x = 2v2 (cos θ sin θ − cos2 θ tan α) /g ii) find

    asked by 12345 on October 12, 2014
  26. Chemistry

    Sucrose hydrolyzes into glucose and fructose. The hydrolysis is a first order reaction. the half life for the hydrolysis of sucrose is 64.2min at 25C. How many grams fo sucrose in 1.25L of a 0.389M solution are hydrolyzed in 1.73hrs? I started off by

    asked by Chem on December 25, 2010
  27. Chemsitry

    Stomach acid is essentially 0.10 M HCl. An active ingredient found in a number of popular antacids is CaCO3. Calculate the number of grams of CaCO3 needed to exactly react with 250 mL of stomach acid. CaCO3(s)+ 2HCl(aq)= CO2(g)+ CaCl2(aq)+ H20(l)

    asked by Brit on November 13, 2012
  28. chemistry

    Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 16.9 g of butane is mixed with 39. g of oxygen. Calculate the minimum mass of butane that could be left over by the chemical reaction. Round your

    asked by jake on April 30, 2012
  29. physics

    A steel cable is stretched across a gorge. The cable is 190 m long and has a mass of 44 kg. When one end of the cable is struck with a hammer, a wave pulse travels down the cable, reflects at the far end, and is detected back at the first end 14 s later.

    asked by Drew on May 18, 2010
  30. electrical circuit

    A 72-ohm coil of wire is connected in series with an adjustable resistor (rheostat) whose resistance can be varied from 0 to 88 ohms. If the line potential is 115 volts, calculate (a) the range through which the coil current can be varied, (b) the rheostat

    asked by gilberT on August 24, 2014
  31. Bio-URGENT

    OK i did a lab in which we had to calculate the rate of reaction by observing how much gas was produced by the experiment. to do this we used a ubside down graduated cylinder in a tub of water and placed a gas collection tube between the testube and the

    asked by Jannette on March 8, 2007
  32. business finance

    A man's bank has offered him a loan of $20000 payable within the year at an annual interest rate of 24%. Calculate the monthly equal payment to defray both the principal and interest payment. Prepare a loan repayment schedule segregating interest from the

    asked by naz on November 29, 2017
  33. BIOMECHANICS

    The NCAA requires that a basketball dropped from a height of 1.83 m (measured to the bottom of the ball) bounce to a height of 1.24 to 1.37 m (measured to the top of the ball). Assuming the diameter of a typical basketball is 0.25 m, calculate the

    asked by jhkh on December 5, 2010
  34. As physics

    How do you calculate the braking distance? driver reaction time=0.6s initial speed of car=30ms-1 speed*2= distance*4 Please show all the steps and the equations you used in words the question states initial speed*2 is equal to = distance*4 If you need

    asked by Jan on November 30, 2017
  35. Chemistry

    I have an exam in a day and I'm confused on how to solve this question. Do I use PV=nRT? Do I find out the molecular formula of the gas from the percentage of nitrogen and oxygen? A sample of a mixture of gases contains 80.0% nitrogen gas and 20.0% oxygen

    asked by Jenny on June 22, 2014
  36. chemistry

    Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 16.9 g of butane is mixed with 39. g of oxygen. Calculate the minimum mass of butane that could be left over by the chemical reaction. Round your

    asked by jake on April 30, 2012
  37. math

    Compound Interest Question James has 10,000 to invest. If he invest money in a savings account that pays 4% APR, calculate the following: a) how long will it take to have a total of 15,000 if interest is compounded quarterly (3months)? b)how much will he

    asked by martha on April 28, 2013
  38. Physics

    A car travels 300 m [N] along a road, then turns a corner and drives an additional 400 m [E]. Draw a vector diagram of the path travelled by the car, and then calculate the car's distance travelled and its displacement. The displacement is 500m and the

    asked by Anonymous on May 9, 2015
  39. Science

    A car runs off the road and hits a stationery rock. Some glass pieces from the windscreen are projected forward and were found at an average distance of 15 meters from the car. The average height of the windscreen is 1.5 meters. Calculate the speed of the

    asked by Jimmy on July 6, 2015
  40. physics

    A steel cable is stretched across a gorge. The cable is 190 m long and has a mass of 44 kg. When one end of the cable is struck with a hammer, a wave pulse travels down the cable, reflects at the far end, and is detected back at the first end 14 s later.

    asked by Drew on May 18, 2010
  41. physics

    Calculate the velocity needed for an object starting at the Earth's surface to just barely reach a satellite in a geosynchronous orbit. Ignore air drag and assume the object has a speed of zero when it reaches the satellite. (The orbital radius of a

    asked by Sam on September 27, 2012
  42. Physical sciences

    A car starting from rest accelerates. Uniformly for 5sec reaches a velocity of 12m.s-1.it then maintains this velocity for 4sec,after which the brakes are applied to bring the car to rest over a distance of 24m. 1.calculate the uniform acceleration

    asked by Pearl Motaung on February 12, 2015
  43. physics - electricity

    a cabel consists of 10 strands of copper wire each of cross-section area 1.1x10^-3 cm^2. Calculate (a) the resistance per meter of the cable (b) the minimum number of strands which would be required if the resistance per meter is not to exceed 0.010ohms.

    asked by umani - on September 13, 2018
  44. statistics

    A candy company claims that 11% of its plain candies are orange, and a sample of 200 such candies is randomly selected a. find the mean and standard deviation for the number of orange candies in such groups of 100. use the formulas below to calculate the

    asked by slomomo on February 18, 2015
  45. physical science

    If a car goes along a straight road heading east and speeds up from 45 ft/sec to 60. ft/sec in 5 sec, calculate the acceleration. = Note: If the speed were given in miles per hour, and the time were given in minutes, you could change the minutes to a

    asked by pat on June 27, 2011
  46. physics

    a cyclist start from rest and accelerate uniformly to achieve a velocity of 12m/sec in 5 sec.immediately he applied brake and come to rest in next 4 sec .calculate a)distance traveled during acceleration b)distance traveled during retardation. c)total

    asked by parul on May 28, 2012
  47. Math

    Amy Powell invested $8500 twice a year in an ordinary annuity at New York Securities for a period of 5 years at an annual interest rate of 10% compounded semiannually. Using the ordinary annuity table , calculate the total value of the annuity at the end

    asked by Melissa on February 27, 2013
  48. physics

    a bullet of mass 0.01kg and travelling at a speed of 500m/s strikes a block of mass 2kg which is suspended by a string length 5m. the centre of gravity of block is found to rise a vertical distance of 0.1m .Calculate the speed of the bullet when it emerges

    asked by Anonymous on January 25, 2018
  49. Physics

    Two blocks are attached by a thin inextensi- ble string over a frictionless, massless pulley. There is a frictional force between the block on the incline and the incline. The acceleration of gravity is 9.8 m/s2 . 13 kg 13 kg μ T 1.1 m/s 0 m/s2 39◦

    asked by Letisha on November 12, 2009
  50. Math

    From an urn containing 7 white and 3 green balls, 3 balls are drawn in succession, without replacing them. Construct the probability distribution of W, the number of white balls in the sample, then compute the mean and standard deviation of W. I've created

    asked by Andrew Burns on September 16, 2015
  51. physics

    A ladder has a weight of 400 N and a length of 10.0 m, it is plac s over a wall without friction. A person whose wight is of 800N stands in the ladder and is 2m from the bottom of the ladder, which is 8 m over the inferior part of the wall. Calculate the

    asked by Leela on November 24, 2016
  52. Physics

    A block of mass 2.30kg is accelerated across a rough surface by a rope passing over a pulley. a) The tension in the rope is 12.4N, and the pulley is 11.2cm above the top of the block. The coefficient of kinetic friction is 0.415. Determine the acceleration

    asked by Presley on October 7, 2015
  53. physics

    A lift is used to carry boxes to the top floor of a hotel 20m high.A total weight of 100kg of boxes was caried up in 20second.If the useful output of the engine driving the lift mechanism is 1.2 kilowatt.calculate the efficiency of the engine of the lift

    asked by Blessig iliya on October 12, 2011
  54. Physics

    For any given quadrupole, let the charges be +q, −q, +q, and −q at the corners of the square, and l be the side of the square. Calculate approximately the electric potential and the electric field far away from the quadrupole, IN THE THREE-DIMENSIONAL

    asked by Asahi on September 4, 2014
  55. Thermo

    Calculate the equilibrium constant for the reaction NiO(s) + H2(g) → Ni(s) + H2O(g) at 1023K from the following data: Ni(s) + ½ O2(g) → NiO(s) ΔG0 = -244,555 + 98.53 T [J] H2(g) + ½ O2(g) → H2O(g) ΔG0 = -246,438 + 54.81 T [J] Could a pure nickel

    asked by mariel on November 10, 2015
  56. physics

    A 21.2-kg box rests on a frictionless ramp with a 14.3° slope. The mover pulls on a rope attached to the box to pull it up the incline. If the rope makes an angle of 41.2° with the horizontal, what is the smallest force F the mover will have to exert to

    asked by Anonymous on October 22, 2014
  57. chemistry

    the following reaction has a Kp = 109 at 25 degrees C 2NO(g) + Br2(g) reversible 2NOBr(g) If the equilibrium partial pressure of Br2 is 0.0159 atm and equil pressure of NOBr is 0.0768 atm, calculate the partial pressure of NO at equlibrium. What are the

    asked by Rebekah on December 3, 2007
  58. Chemistry

    The question is: what is the ratio [NH3/[NH4+] in an ammonia/ammonium chloride buffer solution with pH= 10.00? (pKa for ammonia=9.25) When working the problem, I tried to solve it a bit backwards, in that I plugged in each of the multiple choices I was

    asked by Marcus on April 9, 2013
  59. Chemistry

    1. What is the minimum volume of hot water needed to dissolve 0.200g phenacetin? How much phenacetin will remain in that volume of water once it cools? 2. Why is it important that all the solid dissolves in the hot solvent, before the solution is cooled?

    asked by Cassie on September 24, 2012
  60. human resources

    As a manager, you are in charge of making the staffing decisions to handle this new project. You will have to assess the skills and competencies of your current 20-person team in terms of the demands of the new project. Since none of your current team has

    asked by kimberly on April 19, 2010
  61. Chemestry

    A 5.000g sample of a dry mixture of potassium hydroxide, potassium carboate and potassium chloride is reacted with 0.100 L of 2.00-molar HCl solution. A 249.0 mL sample of dry carbon dioxide gas, measured at 22.0 degree Celsius and 740.0 torr, is obtained

    asked by Catherine on May 13, 2016
  62. chemistry -IMPORTANT-

    we have to make an instrctinal packet showin relationships between moles and concentration. i cant find the following 1)how is the number of moles dissolved in a set amount of solvent related to the molarity? 2)how to determine the amount of solvent in

    asked by lyne on February 12, 2009
  63. chem

    Fe(s) + Cu^2+(aq)--> Fe^2+(aq) +Cu(s)(1) 2Fe(s) + 3Cu^2+(aq)--> 2Fe^3+(aq) +3Cu(s) (2) suppose that you use 1.110 g of Iron in this experiment what is the minimum volume of 1.0M of copper sulfate solution that you should add? Hint: since you don't know

    asked by cindy on September 17, 2007
  64. Geometry

    1. In the formula -2x-y=7, what is the slope? 2. An isoceles trapezoid has____pair(s) of parallel sides. 3. Is a triangle with sides of 6,8, and 10, a right triangle? yes or no. 4.Find the area of the rectangle(30cm, 40cm,40cm. 5. Use factoring to simplify

    asked by Patricia on April 15, 2010
  65. Math

    Peter notices that the teenage students who are members of the math club have ages whose product is 611520. How many members does the club have? Extensions: Is it true that whatever number replaces 611520 that this problem has a unique solution? Suppose

    asked by Claire on February 7, 2014
  66. physics

    1) Obtain the binding energies of 4He and 18O in the Hartree-Fock aproximmation. Use as variational space three oscillator shells for every occupied orbit. Don't use the spin-orbit coupling term. 2) Calculate (using oscillator wave functions with the

    asked by Beatriz on December 30, 2008
  67. Chemistry

    A chemistry laboratory of an experience is being conducted. The pressure is 0.9 atm and the temperature is 18°C. One of the steps of the experience requires the combustion of 500 mL ethanol (Density=0.78 g/mL). Whereas the burning of this amount of

    asked by Marley on January 19, 2016
  68. physics

    a window washer pushes his scrub brush up a vertical window at a constant speed by applying a force f. the brush weighs 8N and the coefficient of friction is 0.4. calculate a) the magnitude of the force f. b) the normal force exerted by the window on the

    asked by flay on January 2, 2013
  69. Personal Finance

    Nancy Tai has recently opened a revolving charge account with MasterCard. Her credit limit is $1000, but she has not charged that much since opening the account. Nancy hasn't had the time to review her monthly statements as promptly as she should, but over

    asked by Sue on October 11, 2008
  70. Managerial Economics

    Which one is the best answer 1.Agreeing to be part of a price-fixing cartel is: a.unlikely to yield maximum prices or profits for very long time b.difficult to maintain, but almost guaranteed to ensure maximum profit c.illegal in most countries d.a and b

    asked by Linda on June 22, 2009
  71. Trig

    A. Find simpler, equivalent expressions for the following. Justify your answers. (a) sin(180 + è) (b) cos(180 + è) (c) tan(180 + è) B. Show that there are at least two ways to calculate the angle formed by the vectors [cos 19, sin 19] and [cos 54, sin

    asked by sally on April 17, 2010
  72. Chemistry

    Calculate the joules of energy involved when 11 grams of water at 10.0 degrees Celsius cools and then freezes at 0.0 degrees Celsius. How many kilocalories are required to raise the temperature of 305 gtams silver from 30 degrees Celsius to 70 degrees

    asked by Palak on January 24, 2011
  73. physics

    A car starts from rest and accelerates uniformly along a straight horizontal road at 3 metres second squeared for 4 seconds,after which it continues with a constant velocity for a further 6 seconds.CALCULATE THE MAGNITUDE OF THE MAXIMUM VELOCITY OF THE

    asked by Anonymous on September 3, 2011
  74. physics

    calculate the period and frequency of a 3.500 m long pendulum at the following locations: a) the north pole, where acceleration due to gravity is 9.832 m/s^2 b) chicago, where acceleration due to gravity is 9.803 m/s^2 c) jakarta, indonesia, where

    asked by giselle on March 15, 2011
  75. physics for physical science

    a bullet of mass 0.015kg strikes ballistic pendulum of mass 2.0kg .the center of mass of the pendulum rises a vertical distance of 0.12m.assuming that the bullet remains embedded in the pendulum, calculate the bullet's initial speed.

    asked by lonia on April 26, 2013
  76. Algebra

    Can you please verify if I did this problem correct. I need to solve for y and then X. Whatever the solution is, I should take the difference of the two numbers. Please let me know if this is correct...I thank you 8x -11y = 170 -6y + x = 49 8x -11y = 170

    asked by Lucille on December 11, 2016
  77. chemistry

    For the reactions that occurred spontaneously in the individual tables, balance these reactions assuming they are in an acidic solution. Reaction 1: Cu I^- Ag Br^- Reaction 2: Zn Pb Cu Ag Reaction 3: Cl2 Br2 I2 Reaction 1 I 2(aq) Cu2 + (aq) Ag + (aq) Br2

    asked by Joseph on April 15, 2008
  78. Chemistry

    The equation for lowering the freezing point of a solvent is given in your manual. Given that the freezing point for the pure solvent is 79.4 °C , the molality is 0.1 m , and the freezing point depression constant is 6.9 °C/m , determine the freezing

    asked by Asia on September 13, 2015
  79. Chemistry

    A student titrates 0.025 M KOH into 50.00 ml of a solution of unknown weak acid HA. Equivalence point is reached when 30.00 ml of the KOH has been added. After 15.00ml of the KOH has been added the pH of the mixture is 3.92. A. What is the concentration of

    asked by Patrick on March 10, 2011
  80. chemistry

    Would you expect the solubility of PbCl2 in water to change dramatically if it were to be dissolved into a solution of 3.091×10−4 M KCl? Yes, the solubility of PbCl2 would decrease dramatically. Yes, the solubility of PbCl2 would increase dramatically.

    asked by ssss on May 4, 2013
  81. Chemistry

    A student titrates 0.025 M KOH into 50.00 ml of a solution of unknown weak acid HA. Equivalence point is reached when 30.00 ml of the KOH has been added. After 15.00ml of the KOH has been added the pH of the mixture is 3.92. A. What is the concentration of

    asked by Patrick on March 10, 2011
  82. algebra

    Ticket Sales Living in or near a metropolitan area has some advantages. Entertainment opportunities are almost endless in a major city. Events occur almost every night, from sporting events to the symphony. Tickets to these events are not available long

    asked by dave on June 24, 2010
  83. college Managerial accounting

    Problem 47 Simon Hinson Company operates two divisions: Gordon and Ronin. A segmented income statement for the company’s most recent year is as follow: Total Company Gordon Division Ronin Division Sales $850,000 $250,000 $600,000 Less variable expense

    asked by C on January 7, 2010
  84. infinite math

    Hey guys! really need help with this one!!! On December 31, 1995, a house is purchased with the buyer taking out a 30-year $90,000 mortgage at 9% interest compounded monthly. The mortgage payments are made at the end of each month. Calculate: (A) the

    asked by tommy on April 1, 2012
  85. Stats

    You are to imagine that you are part of a select marketing group. This group is to consider the Colorado City Convention and Vistitors Bureau survey of 25 hotels. The survey is concerned with the current availability of rooms. They are as follows: 90,

    asked by Jennifer on May 2, 2010
  86. Physics

    A 2.285 kg object is held in place on an inclined plane that makes an angle of 40 degrees with the horizontal. The coefficient of static friction between the plan and the object is 0.552. A second object that has a mass of 4.75 kg is connected to the first

    asked by Mike on October 6, 2012
  87. Stats

    You are to imagine that you are part of a select marketing group. This group is to consider the Colorado City Convention and Vistitors Bureau survey of 25 hotels. The survey is concerned with the current availability of rooms. They are as follows: 90,

    asked by Jennifer on May 2, 2010
  88. Physics

    sound wave of frequency 166 Hz travels with a speed 332 ms−1 along positive x-axis in air. Each point of the medium moves up and down through 5.0 mm. Write down the equation of the wave and calculate the (i) wavelength, and (ii) wave number. How far are

    asked by Komal on March 26, 2016
  89. Physics

    A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 35.0 m above sea level, directed at an angle theta = 46.7° above the horizontal, and with a speed v = 28.4 m/s. Assuming

    asked by Lindsay on November 6, 2007
  90. chem 221 #3

    during the preparation of synthetic banana oil lab. Calculate the amount of isopentyl acetate that should be present in the reaction mixture at equilibrium based on 300 mmol of acetic acid and 150 mmol of isopentyl alcohol as starting quantities. Use

    asked by Jazzmine on February 27, 2013
  91. Chemistry

    A 0.464 gram sample of a metal, M, reacts completely with sulfuric acid according to: M(s) +H2SO4(aq)=MSO4(aq)+H2(g) A volume of 211 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level.

    asked by Raul on March 9, 2013
  92. Chemistry

    1. How much heat in kilojoules is needed to bring 2.00 kg of water from 27.7 to 82.6 ¡ãC (comparable to making four cups of coffee)? 2. Consider the reaction: CH4(g) + 2O2(g) ¡ú CO2(g) + 2H2O(g) Use data in table below Compound S¡ã, J¡¤mol-1¡¤K-1

    asked by write2khin on May 12, 2010
  93. physics

    A)A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.15 m/s at an angle of 19.0o below the horizontal. It strikes the ground 2.50 s later. How far horizontally from the base of the building does the ball

    asked by Teddy on January 30, 2014
  94. Physics

    A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.15 m/s at an angle of 18.5o below the horizontal. It strikes the ground 3.30 s later. How far horizontally from the base of the building does the ball

    asked by Lance on February 5, 2012
  95. chemistry

    Problem#9: Consider the fuel octane (the main component of gasoline) and its combustion reaction 2C8H18(l) + 25O2(g) → 16CO2(g) + 18H2O(l) ΔHo = -10,942 kJ The “fuel value” of a fuel (unit kJ/g) is defined as the energy released when 1 g of the fuel

    asked by Sarah on October 21, 2010
  96. economics

    supose the following demand and cost function of duopoly firm x=40-0.2p where x=x1+x2 c1=50+2x1+0.5x12 c2=100+10x2 drive riaction function find cournot equilibrium quantity and price calculate the equilubrium price and output of each firm assume firm 1 is

    asked by rediet on August 6, 2018
  97. General Chemistry

    Im having trouble balancing this redox rection in acidic solution. I don't know how to balance reactions in which one reactant splits up into two products. C2H5OH(aq) + I3-(aq) --> I-(aq) + CO2(g) + CHO2-(aq) + H+(aq) I know I split it into C2H5OH --> CO2

    asked by Julie on June 3, 2009
  98. Chemistry II

    Eugenol, the active ingredient in cloves, has a formula of C10H12O2. What is the boiling point of a solution containing 1.14g of eugenol dissolved in 10.0g of benzene? The boiling point of benzene is 80.1C and the boiling point elevation constant for

    asked by Mandy on September 27, 2009
  99. math 116

    I am taking math 116 , I am to find the solution to the problem 9x-3y=-68 and -2x+y=18 and to give an ordered pair. Now, that you have it where you take 9x from both sides, or is it 3y? My question is when you just have y do you count that as one(y) , I

    asked by dedee on August 1, 2009
  100. Chemistry

    Urea (NH2CONH2), an important nitrogen fertilizer, is produced industrially by the reaction 2NH3(g)+ CO2(g)--> NH2CONH2(aq)+ H2O(l). Given that delta G = -13.6 kj/mol, calculate delta G at 25 degree C.for the following condition. 40 atm NH3 , 40 atm CO2 ,

    asked by Anonymous on February 26, 2010

Pages

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21
  22. 22
  23. 23
  24. 24
  25. 25
  26. 26
  27. 27
  28. 28
  29. 29
  30. 30
  31. 31
  32. 32
  33. 33
  34. 34
  35. 35
  36. 36
  37. 37
  38. 38
  39. 39
  40. 40
  41. 41
  42. 42
  43. 43
  44. 44
  45. 45
  46. 46
  47. 47
  48. 48
  49. 49
  50. 50
  51. 51
  52. 52
  53. 53
  54. 54
  55. 55
  56. 56
  57. 57
  58. 58
  59. 59
  60. 60
  61. 61
  62. 62
  63. 63
  64. 64
  65. 65
  66. 66
  67. 67
  68. 68
  69. 69
  70. 70
  71. 71
  72. 72
  73. 73
  74. 74
  75. 75
  76. 76
  77. 77
  78. 78
  79. 79
  80. 80
  81. 81
  82. 82
  83. 83
  84. 84
  85. 85
  86. 86
  87. 87
  88. 88
  89. 89
  90. 90
  91. 91
  92. 92
  93. 93
  94. 94
  95. 95
  96. 96
  97. 97
  98. 98
  99. 99
  100. 100
  101. 101
  102. 102
  103. 103
  104. 104
  105. 105
  106. 106
  107. 107
  108. 108
  109. 109
  110. 110
  111. 111
  112. 112
  113. 113
  114. 114
  115. 115
  116. 116
  117. 117
  118. 118
  119. 119
  120. 120
  121. 121
  122. 122
  123. 123
  124. 124
  125. 125
  126. 126
  127. 127
  128. 128
  129. 129
  130. 130
  131. 131
  132. 132
  133. 133
  134. 134
  135. 135
  136. 136
  137. 137
  138. 138
  139. 139
  140. 140
  141. 141
  142. 142
  143. 143
  144. 144
  145. 145
  146. 146
  147. 147
  148. 148
  149. 149
  150. 150
  151. 151
  152. 152
  153. 153
  154. 154
  155. 155
  156. 156
  157. 157
  158. 158
  159. 159
  160. 160
  161. 161
  162. 162
  163. 163
  164. 164
  165. 165
  166. 166
  167. 167
  168. 168
  169. 169
  170. 170
  171. 171
  172. 172
  173. 173
  174. 174
  175. 175
  176. 176
  177. 177
  178. 178
  179. 179
  180. 180
  181. 181
  182. 182
  183. 183
  184. 184
  185. 185
  186. 186
  187. 187
  188. 188
  189. 189
  190. 190
  191. 191
  192. 192
  193. 193
  194. 194
  195. 195
  196. 196
  197. 197
  198. 198
  199. 199
  200. 200
  201. 201
  202. 202
  203. 203
  204. 204
  205. 205
  206. 206
  207. 207
  208. 208
  209. 209
  210. 210
  211. 211
  212. 212
  213. 213
  214. 214
  215. 215
  216. 216
  217. 217
  218. 218
  219. 219
  220. 220
  221. 221
  222. 222
  223. 223
  224. 224
  225. 225
  226. 226
  227. 227
  228. 228
  229. 229
  230. 230
  231. 231
  232. 232
  233. 233
  234. 234
  235. 235
  236. 236
  237. 237
  238. 238
  239. 239
  240. 240
  241. 241
  242. 242
  243. 243
  244. 244
  245. 245
  246. 246
  247. 247
  248. 248
  249. 249
  250. 250
  251. 251
  252. 252
  253. 253
  254. 254
  255. 255
  256. 256
  257. 257
  258. 258
  259. 259
  260. 260
  261. 261
  262. 262
  263. 263
  264. 264
  265. 265
  266. 266
  267. 267
  268. 268
  269. 269
  270. 270
  271. 271
  272. 272
  273. 273
  274. 274
  275. 275
  276. 276
  277. 277
  278. 278
  279. 279
  280. 280
  281. 281
  282. 282
  283. 283
  284. 284
  285. 285
  286. 286
  287. 287
  288. 288
  289. 289
  290. 290
  291. 291
  292. 292
  293. 293
  294. 294
  295. 295
  296. 296
  297. 297
  298. 298
  299. 299
  300. 300
  301. 301
  302. 302
  303. 303
  304. 304
  305. 305
  306. 306
  307. 307
  308. 308
  309. 309
  310. 310
  311. 311
  312. 312
  313. 313
  314. 314
  315. 315
  316. 316
  317. 317
  318. 318
  319. 319
  320. 320
  321. 321
  322. 322
  323. 323
  324. 324
  325. 325
  326. 326
  327. 327
  328. 328
  329. 329
  330. 330
  331. 331
  332. 332
  333. 333
  334. 334
  335. 335
  336. 336
  337. 337
  338. 338
  339. 339
  340. 340
  341. 341
  342. 342
  343. 343
  344. 344
  345. 345
  346. 346
  347. 347
  348. 348
  349. 349
  350. 350
  351. 351
  352. 352
  353. 353
  354. 354
  355. 355
  356. 356
  357. 357
  358. 358
  359. 359
  360. 360
  361. 361
  362. 362
  363. 363
  364. 364
  365. 365
  366. 366
  367. 367
  368. 368
  369. 369
  370. 370
  371. 371
  372. 372
  373. 373
  374. 374
  375. 375
  376. 376
  377. 377
  378. 378
  379. 379
  380. 380
  381. 381
  382. 382
  383. 383
  384. 384
  385. 385
  386. 386
  387. 387
  388. 388
  389. 389
  390. 390
  391. 391
  392. 392
  393. 393
  394. 394
  395. 395
  396. 396
  397. 397
  398. 398
  399. 399
  400. 400
  401. 401
  402. 402
  403. 403
  404. 404
  405. 405
  406. 406
  407. 407
  408. 408
  409. 409
  410. 410
  411. 411
  412. 412
  413. 413
  414. 414
  415. 415
  416. 416
  417. 417
  418. 418
  419. 419
  420. 420
  421. 421
  422. 422
  423. 423
  424. 424
  425. 425
  426. 426
  427. 427
  428. 428
  429. 429
  430. 430
  431. 431
  432. 432
  433. 433
  434. 434
  435. 435
  436. 436
  437. 437
  438. 438
  439. 439
  440. 440
  441. 441
  442. 442
  443. 443
  444. 444
  445. 445
  446. 446
  447. 447
  448. 448
  449. 449
  450. 450
  451. 451
  452. 452
  453. 453
  454. 454
  455. 455
  456. 456
  457. 457
  458. 458
  459. 459
  460. 460
  461. 461
  462. 462
  463. 463
  464. 464
  465. 465
  466. 466
  467. 467
  468. 468
  469. 469
  470. 470