1. Economics

    3. Suppose the Clean Springs Water Company has a monopoly on bottled water sales. If the price of tap water increases, what is the change in Clean Water’s profit-maximizing levels of output, price, and profit? Explain in words and with a graph. Take a
  2. META!!!

    what are advantages and disadvantages of using meta search services? http://www.sou.edu/library/searchtools/ 1. Go through the different articles in the section entitled HOW TO SEARCH THE INTERNET. 2. Then try out some of the search engines in the
  3. Science

    For this activity, we had to make cube shaped models to represent cells. Then we had to compare surface area, volume, and surface area to volume ratio (SA:V) between the cells.  Cell A:  length of one side=1cm  Surface area= 6cm^2  Volume= 1cm^3 
  4. chemistry

    what volume and mass of steam at 100 degrees C and 1.00 atm would, during condensation, release the same amount of heat as 100.cm^3 of liquid water during freezing? What do you note, qualitatively, about the relative volumes and masses of steam and liquid
  5. physics

    The cable of a 1800-kg elevator has broken, and the elevator is moving downward at a steady speed of 1.6 m/s. A safety braking system that works on friction prevents the downward speed from increasing. a. speed of boat when leaves ramp (assume that engine
  6. volume:ration

    A worm has a diameter of 2.4cm and its length is upto 1.9M. a)How do I calculate the surface area? b)How do I calculate the volume? c)How do I work out the volume ratio of the worm? Please help! Thanx kim xxx Surface area= PI*2*radius * length] Volume= PI
  7. auesdun

    what does steam engine mean
  8. Chemistry

    An air thermometer can be constructed by using a glass bubble attached to a piece of small-diamter glass tubing. The tubing contains a small amount of colored water that rises when the temperature increases and the trapped air expands. You want a 0.20 cm3
  9. science

    A 20 N object displaces 2,000 mL of water. What is the buoyancy? Hint: 1 mL of water = 1 cm3 of water = 1 g of water (Remember to convert g to kg) Will it float? (yes/no)
  10. chemistry

    {V1} mL of 0.100 M HCl is placed in a {V2}.0 mL volumetric flask and water is added to bring the final volume up to 250.0 mL. What is the molarity of the dilute solution?
  11. math

    In a shower,there is 5cm of rainfall.find volume of water that falls on 1.8 hectares of ground.1 hectare is 10000m2 (ans 90cu m)?
  12. chemistry

    Calculate the molarity of a solution made by adding 47.2g of NaNO3 to a flask and dissolving it with water to create a total volume of 1.80L .
  13. chemistry

    Potassium nitrate weighing 15 g was dissolved in water volume of 200 cm3. Calculate the mass fraction of KNO3 in solution.
  14. Science Physics

    A lifeguard swims with her head just above the water. What is the volume of the submerged part of her body if she weighs 600 N? Would I need to divide by 9800 or 62.4?
  15. Physics

    a plastic duck floats half-immersedi n water in the bathtub. What fraction of its volume would be immersed in a liquid of relative density 2.0?
  16. SCIENCE

    3) You add 36 g of MgSO4 to pure water to a final volume of 200 mL. What concentration of solution did you make ? Express the results as percentage, % (w/v).
  17. Chemistry

    Given 100 mL of pure water at 40C, what volume of a solution of hydrochloric acid, with a density of 1.175 g/mL and containing 34.4% HCI by weight, could be prepared?
  18. Chemistry

    a. Exactly 4.000 mol of NH3 is burned in a constant volume (bomb) calorimeter immersed into 100.0kg of water. The temperature of water increases by 3.619 degrees C after the reaction. Calculate the heat released by the reaction. Neglect the heat capacity
  19. Chemistry

    If 22 g of water is heated so that the water temperature rises from 18.1°C to 21.5°C, how many calories have been absorbed by the water? The specific heat of water = 1.00 cal / (g · °C)
  20. Chemistry

    A) A compound distributes between water (solvent 1) and benzene (solvent 2) with Kp = 2.7. If 1.0g of the compound were dissolved in 100mL of water, how much compound could be extracted by three 10-mL portions of benzene? B) If the value of Kp is 0.5 for
  21. Enviromental Science

    It is true that ______ a) few plants grow well around water b) plants are better able to seek water than are animals c) water covers about 95% of the plants d) the amount of water in the enivronment limits the kinds of organisms that can live there e)
  22. History

    Which accurately describes an English achievement during the Industrial Revolution that improved mining production? Andrew Meikle invented the threshing machine to help bring ore up from mines j.m. jacquard loom to make waterproof coats for mine workers
  23. Chemistry

    When we breathe we inhale oxygen, O2, and exhale carbon dioxide, CO2, plus water vapor, H2O. Which likely has more mass, the air that we inhale or the same volume of air we exhale? Does breathing cause you to lose or gain weight? I thought that the air we
  24. English

    Which sentence includes an adjectival phrase? a. The American chameleon, a type of lizard, can change colors to blend with the environment. b. The fastest land mammals, cheetahs, reach speeds in excess of 65 miles per hour. c. The length of a person's
  25. statistics

    describe how you would design an experiment to help the protagonist make an informed decision. Your description should include (but not be limited to) how subjects are chosen for the experiment, how treatments will be administered, what variable(s) you
  26. physics

    In a student experiment, a constant-volume gas thermometer is calibrated in dry ice (−78.5°C ) and in boiling pentane (36.1°C). The separate pressures are 0.896 atm and 1.433 atm. Hint: Use the linear relationship P = A + BT, where A and B are
  27. Science Please

    Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of
  28. Science Please

    Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of
  29. Science Help

    Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of
  30. Chemistry

    In a thermochemistry experiment the reaction of 0.0857 g of an unknown metal and an excess of 4.0 M HCl resulted in a 0.210 mL decrease in the volume of an ice/water mixture. Calculate the enthalpy of this reaction per 1 g of metal reacted. Needed data:
  31. Chemistry

    Given one of the following solution: 50.00mL of 0.10M of K2CrO4 answer the following. 1. How do you prepare the solution? 2. What volume (mL) of your solution contains 5.00X10(-4) moles of the solute? 3. What volume of your solution contains 1.00g of the
  32. Integrated Physics and Chemistry

    Matching... Heat engine Heat pump Boiler Thermostat -a heating appliance that uses heat energy released from fossil fuels to warm water for use in radiant or convection heating systems -a appliacne that controls the maintenance temperature of a heating
  33. physical

    in a water tank is filled wiyh 1026 lter of water,we want to mixed sodium nirtride by 17% of the water,how much we used sodiume nitride in kilogram in to the water?
  34. Science

    During an experiment on a sunny day,students pour water on the sidewalk.Every 30 minutes ,they check the water to record any changes.After 1 hour, they observe that all the water is gone.What happens to the water?
  35. Physics

    The diameter of the Moon is 3480km. What is the volume of the Moon? How many Moons would be needed to create a volume equal to the Earth? How do you find the volume of the Moon from just the diameter? Also, does anybody know how to figure out the volume of
  36. Math

    A swimming pool is in the shape of a cuboid with dimensions 50 metres long by 25 metros wide by 2.5 metres deep. If the pool is completely filled with water, calculate a) the volume of water in the pool b) the longest straight distance a swimmer could swim
  37. physics

    It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.20 GPa). As one goes deeper and deeper in the ocean, the pressure increases by 1.0*10^4 Pa for every meter below the surface. If a diver goes down 33.0 m (a bit
  38. Calculus 2

    I am having so many problems with these volume problems, 1. Find the volume of a the solid obtained by rotating the region enclosed by: x = 2y and y^3 = x with y>0 about the x axis 2.Find the volume of cone of height h = 250 and a circular base with
  39. physical sci

    Water can be found as ice, liquid water, and water vapor. Which of these types of water has the least density?
  40. ThermoChemistry

    When 19 mL of water at 22 C is combined with 18 mL of water at 64 C, what is the final temperature of the water?. The specific heat of water is 4.184 J/g/K and its density is 1.0 g/mL.
  41. Organic Chemistry

    Water/methanol and water/acetone are viable solvent systems for recrystallization,but water/chloroform and water/pentane are not. Briefly explain in 1-2 sentences.
  42. I need answer fast

    A machine will add 128 parts of water to l part of the kool aid in the machine. If a kool aid must be dispensed in the ratio 1part kool aid and 448 parts of water, how should the mixture be diluted. Please give me the steps to get to answer. You need to
  43. physics

    if the brakes of an automobile are applied from 70km/h to 35km/h, how many meters does the car travel during this deceleration?
  44. physics

    At highway speeds, a particular automobile is capable of an acceleration of about 1.6 m/s2. At this rate, how long does it take to accelerate from 79 km/h to 102 km/h?
  45. Physics

    Can anyone help? the resistance of the side lights on an automobile are 10 ohms. How much current flows in them when connected to 12 volts
  46. Physics

    What is the centripetal acceleration of an automobile driving at 40 km/h on a circular track of radius 20m? Help ASAP please!!!
  47. physics

    At highway speeds, a particular automobile is capable of an acceleration of about 1.6 m/s2. At this rate, how long does it take to accelerate from 76 km/h to 118 km/h
  48. physics

    At highway speeds, a particular automobile is capable of an acceleration of about 1.6 m/s2. At this rate, how long does it take to accelerate from 81 km/h to 107 km/h?
  49. college physics

    an automobile traveling at 25.0 km/h along straight,level road accelerates to 65.0 km/h in 6.00s what is the acceleration
  50. Physics

    An automobile with an initial speed of 3.56 m/s accelerates uniformly at the rate of 2.7 m/s2. Find the displacement of the car after 4.1s.
  51. physics

    At highway speeds, a particular automobile is capable of an acceleration of about 1.6 m/s2. At this rate, how long does it take to accelerate from 81 km/h to 117 km/h?
  52. Phyiscs

    if the brakes of an automobile are applied from 70km/h to 35km/h, how many meters does the car travel during this deceleration?
  53. physics

    What is the radius of an automobile tire that makes a complete turn in 0.1 sec and has a linear speed of 24.0 m/s?
  54. physics

    at highway speeds, a particular automobile is capable of an acceleration of about 2.6 m/s^2. at this rate, how long does it take to accelerate from 60 km/h to 110 km/h?
  55. PHYSICS

    what is the central acceleration of an automobile driving at 40 kph on a circular tracks having radius of 30m?
  56. phys

    An automobile tire is rated to last for 35,000 miles. To an order of magnitude, through how many revolutions will it turn?
  57. Physics

    At highway speeds, a particular automobile is capable of an acceleration of about 1.52 m/s2. At this rate, how long does it take to accelerate from 74.0 km/h to 104.0 km/h? (in s)
  58. math hw

    An automobile party leaves at 7:55 A.M., and arrives at its destination 15 miles away at 8:15 A.M. What was the average rate on this trip (in M.P.H.)?
  59. thermodynamics

    an automobile having a mass of 1.250 kg is traveling at 40m/s. what is its energy in kJ? how much work must be done to bring it to a stop?
  60. Physics

    An iron block of the mass 1 kg is suspended on a spring of the spring constant 140 N/m, and merged into a vessel with 8 liters of water. The mass is displaced by 10 cm from its equilibrium position, and released. How much energy in J has been dissipated by
  61. Chemistry-DrBob222

    I got 62.9 mL. Is this correct? I think HCl is the LR. A piece of solid magnesium is reacted with hydrochloric acid to form hydrogen gas: Mg (s) + 2HCl (aq) ---> MgCl2 (aq) + H2 (g) What volume of hydrogen gas (in mL) is collected over water at 25
  62. Chemistry

    If the volume of ocean water 7.41*10^20 L contains 2.9 percent sodium chloride ("salt") by mass and the density of the water is 1.26 g/mL, calculate the total mass of sodium chloride. (1 ton = 2000 lb, 1 lb = 453.6 g) Calculate the mass of sodium chloride
  63. ThermoPhysics

    During the compression stroke of a certain gasoline engine, the pressure increases from 1.00 atm to 20.5 atm. The process is adiabatic and the air–fuel mixture behaves as a diatomic ideal gas. (a) By what factor does the volume change? Vfinal = Vinitial
  64. English

    1. A coin sinks in water. 2. A coin sinks in the water. 3. A coin sinks in the water of the glass. 4. A coin sinks in the sea [water]. 5. A coin sinks in the river [water]. ------------------------------------- [What about my explanation about 'water' and
  65. Compliments

    Hey, Im trying to find lots of compliments. For example, if someone makes a really nice drawing or whatever, and enhances it with their own techniques and stuff, what comments could I give to them? Here is my list: *Very creative work *Like the blend and
  66. mat 116/algebra

    A cylinder has a radius of 5 in. If the volume of the cylinder is 250Ĉ in.3, what is the height of the cylinder? [Hint: The volume of a cylinder is given by V = Ĉr2h.] I think I wrote it wrong the first time. The volume of a cylinder is pi r^2 h.
  67. Biology

    In each set up the dialysis tubing contains a solution of 30% glucose and safranin. However, the set ups differ in the contents of the beaker. The control set up has the same solution in the beaker while in the experimental set up it contains just water.
  68. Chemistry

    Physical properties are those that you can detect with your senses: sight, hearing, touch, taste, smell. With just a glass of water, you can explore physical properties of water. Activity: Investigating Water glass of drinking water,paper
  69. Chemistry

    A sample of gas collected over water at 42 C occupies a volume of one liter. The wet gas has a pressure of 0.986 atm. The gas is dried, and the dry gas occupies 1.04 L with a pressure of 1.00 atm at 90 C. Using this information, calculate the vapor
  70. Chemistry

    1. If 22.5 L of nitrogen at 748 mm Hg are compressed to 725 mm Hg at constant temperature. What is the new volume? 2. A gas with a volume of 4.0L at a pressure of 205kPa is allowed to expand to a volume of 12.0L. What is the pressure in the container if
  71. math

    The volume of Jupiter is about 1.43*10^15 cubic kilometers. The volume of Earth is about 1.09*10^12 cubic kilometers. The number of Earths that can fit inside Jupiter can be found by dividing Jupiter's volume by Earth's volume. Find this quotient and
  72. Physics

    A large pot is placed on a stove and 1.2 kg of water at 14°C is added to the pot. The temperature of the water is raised evenly to 100°C just before it starts to boil. (a) What amount of heat is absorbed by the water in reaching 100°C? (b) The water
  73. science

    What volume of helium would be in a balloon the size of a soft drink bottle? What's the volume of the small drink bottle? That's how much helium would be there. no the question was WHAT WAS THE VOLUME OF HELIUM WOULD BE IN A BALLOON THE SIZE OF A SOFT
  74. chemistry

    What volume of ethylene glycol (C2H6O2), a nonelectrolyte, must be added to 20.0 L of water to produce an antifreeze solution with a freezing point of -28.0°C? (The density of ethylene glycol is 1.11 g/cm3, and the density of water is 1.00 g/cm3.) .....L
  75. chemistry

    Sulfur and chlorine can react together to form S2Cl2. When 1.00g of this sulfur chloride reacted with water, 0.36g of a yellow ppt of sulfur was formed together with a solution contianing a mixture of sulfurous acid, H2SO3, and HCl acid. Use the above data
  76. science help PLS

    A home gets its water from a private well. Which of the following would be the best way for the homeowner to obtain a water-quality report? A.Hire a local contractor to test the home's water supply B.Record observations made by smelling and tasting the tap
  77. Ochem

    What volume of eugenol will be present in 30 mL of distillate? The essential oil found in cloves, eugenol, can be isolated by steam distillation because it is insoluble in water and has a measurable vapor pressure at 100 °C even though it has a much
  78. Science

    During an experimento a sunny Day,stu dental pour water on the sidewalk.every 30 minutes,they check the water to record antes changes.after 1 hour,they observe that all the water is gone. What happens to the water?
  79. physics

    To verify her suspicion that a rock specimen is hollow, a geologist weighs the specimen in air and in water.She finds that the specimen weighs twice as much in air as it does in water.The solid part of the specimen has a density of 5.0 multiplied by
  80. art 103

    "Street, Dresden", 1907, oil on canvas by Ernst Ludwig Kirchner. Describe the shapes in this painting: Are the shapes organic or geometric? Which ones? Describe how the shapes interact, or "touch" each other. Are the edges of the shapes soft or hard? Do
  81. art 103

    "Street, Dresden", 1907, oil on canvas by Ernst Ludwig Kirchner. 1.Describe the shapes in this painting: Are the shapes organic or geometric? 2.Which ones? Describe how the shapes interact, or "touch" each other. 3.Are the edges of the shapes soft or hard?
  82. art

    The Visual Elements: "Street, Dresden", 1907, oil on canvas by Ernst Ludwig Kirchner Describe the shapes in this painting. Are the shapes organic or geometric? Which ones? Describe how the shapes interact, or "touch" each other. Are the edges of the shapes
  83. chemistry

    What is the smallest volume of water at 20c that could be used to dissolve and remove potassium nitrate impurities and leave pure sodium hydrogen carbonate?
  84. luma

    A rock weighs 100 N in air and has a volume of 0.00312 m^3. What is its apparent weight when submerged in water? The acceleration of gravity is 9.8 m/s^2. Answer in units of N.
  85. chemistry

    what mass of water is expected when 5.80 grams of sodium carbonate reacts with excess sulfuric acid? what volume of gas is produced at STP?
  86. chemistry

    what mass of water is expected when 5.80 grams of sodium carbonate reacts with excess sulfuric acid? what volume of gas is produced at STP?
  87. Chemistry

    The molarity and the molality of a solution prepared by dissolving 2.00 g of ethanol C2H5OH with 99.0 g of water to give a final volume 101 mL are ______Molarity and _______molality. How do I do this?
  88. chemistry

    If you dissolve 220.3 Pounds of ammonium nitrate in water to obtain a final solution volume of 500. gallons what is the [NH4+] (of course in mol/L)?
  89. computer

    define search engine
  90. General

    Can someone tell me a good search engine?
  91. social studies

    what does a search engine do?
  92. physics

    Water flows steadily from an open tank into a pipe. The elevation of the top of the tank is 10.2 m, and the elevation at the pipe is 3.90 m. The initial cross-sectional area of the pipe is 6.40×10^−2 m; and at where the water is discharged from the
  93. science

    Three equal-sized pans containing distilled (pure water),ocean water (3 percent salt),and water from the Great Salt Lake in Utah (about 20 percent salt)are placed in freezer. Which of the following would be the order in which these three liquids would
  94. Chemistry

    A 1.0-mL volume of 0.010 M H2SO3 is added to a mixture of 12 drops of 0.010 M HIO3, 8 drops of deionized water, and 1 drop of starch solution. a color change occured after 40 seconds. the rate of reaction is measured by the disappearance of HIO3. got the
  95. Chemistry

    Zinc dissolves in acid according to the balanced reaction: Zn(s) + 2H^+(aq) -> Zn^2+(aq) + H2(g) A sample of zinc is placed in the ice calorimeter. If 0.0657g of zinc causes a decrease of 0.109mL in the ice/water volume of the calorimeter, what is the
  96. Chem help!!

    A rock salt (NaCl), ice, and water mixutre is used to make homemade ice cream. How many grams of rock salt must be added to lower the freezing point 10.0 degrees C? I have no idea what to do, please help! delta T = Kf*i*m delta T = 10. Kf is the molal
  97. physics bob

    still i cant find the normal force without mass of automabile. is normal force mass times gravity sin theta? on a level road the stopping distance for an automobile is 35.0m for an initail speed of 90 km/hr what is the stopping distance of the same
  98. Science

    3. Kamir and Alexis are studying the properties of water. They conducted a variety of experiments to determine its physical and chemical properties. Of the tests the students conducted, which one illustrates a chemical property of water? a. Salt dissolves
  99. science help please?????????????

    A student wishes to test the accuracy of the measuring jug she is using in an experiment. The label on the jug claims that it measures volume to an accuracy of plus or minus 5 cm3. The density of water is about 0.999 g cm−3, which means that 100 cm3
  100. Science need help???

    A student wishes to test the accuracy of the measuring jug she is using in an experiment. The label on the jug claims that it measures volume to an accuracy of plus or minus 5 cm3. The density of water is about 0.999 g cm−3, which means that 100 cm3