1. geometry

    The volume of a cone is 54 pi cubic inches. The radius and height of the cone are both reduced by a factor of 3 to create a new cone. What is the volume of the new cone? Is the volume of the new cone 18pi cu in A. 2 pi cu inches B. 6 pi cu inches C. 9 pi

    asked by Mary on May 25, 2011
  2. Science

    Which of the following explains why water is a liquid at room temperature but oxygen is a gas at the same temperature? A. The cohesive forces between water molecules is less than that of oxygen. B. Water is the universal solvent. C. Water has a greater

    asked by ADIDAS on April 19, 2017
  3. chemistry

    The reaction between solid sodium and iron(III) oxide is one in a series of reactions that inflates an automobile airbag. 6 Na(s) + Fe2O3(s) 3 Na2O(s) + 2 Fe(s) If 171.0 g Na and 213.5 g Fe2O3 are used in this reaction, what is the mass of excess reactant

    asked by tg on February 7, 2010
  4. Chemistry

    The reaction between solid sodium and iron(III) oxide is one in a series of reactions that inflates an automobile airbag. 6 Na(s) + Fe2O3(s) 3 Na2O(s) + 2 Fe(s) If 171.0 g Na and 213.5 g Fe2O3 are used in this reaction, what is the mass of excess reactant

    asked by tdb on February 9, 2010
  5. physics

    A typical science question young people have is "Why can a glass can contain water?" and a typical answer is "Because the distance between molecules that make up the glass is smaller than the size of each water molecule." This isn't quite right though.

    asked by dfghndfghncbfv on May 6, 2013
  6. Chemistry

    Hardness is defined as calcium and magnesium ion content. Since most hardness is caused by carbonate mineral deposits and does not distinguish calcium and magnesium ions, hardness is usually reported as parts per million (ppm) of calcium carbonate (CaCO3,

    asked by KO on January 19, 2017
  7. physics air bags

    The longer the impact time of an impulse, the smaller the force can be for the same momentum change, and hence the smaller the deformation of the object on which the force acts. On this basis, explain the value of air bags, which are intended to inflate

    asked by clay on October 15, 2009
  8. Math

    1) Maria is 6 times as old as Tina. In twenty years, Maria will be only twice as old as Tina. How old is Maria now? Please explain how you got your answer. Thanks! 2) Rating. Relative speed of flow 10W. Half as fast as 5W 15W. Half as fast as 10W 20W. Half

    asked by Jessica on January 16, 2018
  9. Physics

    An electric heating coil is immersed in a beaker of water and turned on. A current of 3.50 A floured through the coil. After the water starts to boil, it is found that 60.0 g of water vaporizes in 4.00 minutes. What is the resistance of the coil? (Iv = 540

    asked by Anonymous on January 7, 2016
  10. Physics

    An electric heating coil is immersed in a beaker of water and turned on. A current of 3.50 A floured through the coil. After the water starts to boil, it is found that 60.0 g of water vaporizes in 4.00 minutes. What is the resistance of the coil? (Iv = 540

    asked by Anonymous on January 7, 2016
  11. math

    A cylindrical glass of radius 7 cm is partially filled with water . 154 metal cubes of edge length 1 cm have been dropped into this glass slowly.after that water rises up to the brim of the glass .the rise in water level will be

    asked by Bhagat singh on January 30, 2016
  12. calculus

    water is pouring into a conical cistern at the rate of 8 m^3/minute. If the height of the inverted cone is 12 meters and the radius of its circular opening is 6 meters, how fast is the water level rising when the water is 4 meters depth?

    asked by Anonymous on March 15, 2016
  13. calculus2

    A tank is full of water. Find the work required to pump the water out of the spout. (Use 9.8 m/s^2 for g. Use 1000 kg/m^3 as the density of water. Assume r = 9 m and h = 3 m.) The tank is a spherical shape with r as the radius(9m). On top of the tank is a

    asked by A on June 28, 2018
  14. Physics

    What force is must a jet's boat engine apply to accelerate the boat from 50 km/h to 100 km/h in 6.0 s? The mass of the boat is 800 kg and the coefficient of kinetic friction is 0.30. I found acceleration by doing v2-v1 / t, but im not sure what to do next?

    asked by Anonymous on September 28, 2009
  15. Physic

    A car is driven at a constant speed of 21m/s down a road.the car engine delivers 48 kw of power.Calculate the force of friction that is resting the motion on the car.

    asked by Joveal on January 31, 2016
  16. Physics

    An engine expends 44.0 hp in moving a car along a level track at a speed of 13.9 m/s. How large is the total force acting on the car in the opposite direction of the motion of the car?

    asked by Darrell on May 27, 2012
  17. Physics

    An engine expends 44.0 hp in moving a car along a level track at a speed of 13.9 m/s. How large is the total force acting on the car in the opposite direction of the motion of the car?

    asked by Jeremy on May 28, 2012
  18. Physics Help

    A constant force of 100N , directed upward, is applied to a 5.0kg toy rocket by the rocket's engine. What is the rocket's acceleration? I used the equation a= F/m to get 20 m/s2 but it was wrong and I don't know where to go from here still?

    asked by Eiban on February 15, 2014
  19. Physics

    A 1.2m -long steel rod with a diameter of 0.50cm hangs vertically from the ceiling. An auto engine weighing 4.7kN is hung from the rod. By how much does the rod stretch?

    asked by Georgey on March 6, 2014
  20. English

    1. A coin sinks in water. 2. The coin sinks in water. 3. Coins sink in water. 4. Any coin sinks in water. 5. All coins sink in water. ------------------------------- Thank you for your help. One more similar question. Are the sentences all in generic use?

    asked by rfvv on October 18, 2017
  21. physics

    Four tubes are set up in the lab at sea level as shown by the figure. The letter under each tube corresponds the question with the same letter. 1 atm = 101300 Pa = 101300 N/m2 ρwater = 1000 kg/m3 (a) What is the pressure pushing down on the surface of the

    asked by Sarah on November 8, 2010
  22. physics

    Initially 1.200 mol of an ideal gas in a container occupies a volume of 3.50 l at a pressure of 3.30 atm with an internal energy U1 = 547.2 J. The gas is cooled at a constant volume until its pressure is 1.80 atm. Then it is allowed to expand at constant

    asked by chelsea on November 18, 2012
  23. Physics

    Initially 1.200 mol of an ideal gas in a container occupies a volume of 3.50 l at a pressure of 3.30 atm with an internal energy U1 = 547.2 J. The gas is cooled at a constant volume until its pressure is 1.80 atm. Then it is allowed to expand at constant

    asked by Erika on November 17, 2012
  24. Science 8th grade

    Please check my answer thanks What makes up most of the volume of blod plasma ? A Reb blood cells B Water C Plasma proteins D White blood cells I think it's Red blood cells

    asked by Anonymous on March 25, 2008
  25. Science

    What is the density of a book whose mass is 1,800 g and whose volume is 300 cm3? *My Answer*You want to identify the numbers first, density = mass ÷ volume. Which would give you, 1800g ÷ 300 cm³ = 6 g/cm³. *Cant Figure Out *What is the mass of a ball

    asked by Jess on September 29, 2017
  26. English

    Could you please check these last sentences, please? 1) He is wearing a grey sleeveless T-shirt and a pair of tracksuit pants. 1) Most penguins at the Blackbrook Zoological Park are swimming actively in the water except for a sad-faced one, who (which?) is

    asked by Henry2 on November 24, 2011
  27. College physics

    According to test performed by the manufactures, an automobile with an initial speed of 75 km/h has a stopping distance of 25 m on a level road. assuming that no skidding occurs during breaking, what is the value of μ , between the wheels and the road

    asked by Sneakatone on February 26, 2013
  28. chemistry

    How would one calculate the equilibrium pressure of Sodium bicarbonate and citric acid in water (think Alka Seltzer), reacting in a closed volume. The pressure builds up to a point, where the reaction slows due to pressure build up. How do I calculate the

    asked by Joe on April 12, 2010
  29. Technology

    Please check this for me: 5. The freezing point of water on the Celsius temperature scale is a. 0 degrees b. 32 degrees c. 100 degrees d. 212 degrees A 8. A measurement for a rectangular box is given as 150 cubic inches. This measurement indicates the

    asked by y912f on December 18, 2009
  30. AP Physics - Fluids

    A 6.0-cm diameter horizontal pipe gradually narrows to 4.0 cm. When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 32 kPa and 24 kPa, respectively. What is the volume rate of flow? I know to use Bernoulli's

    asked by Henry on November 20, 2009
  31. Chemistry

    Oxy acetylene welding uses acetylene gas which is produced by the reaction of CaC2 with water. It also produces calcium hydroxide as a by product.Calculate the volume in liters measured at 27°C and 965 torr that would be produced from the complete

    asked by Vaidehi on August 30, 2016
  32. Chemistry

    1 N204(l) + 2 N2H4(l) --> 3 N2(g) + 4 H2O(g) If you start with: 5.0 x 10^4 g hydrazine (N2H4) "in the tank": 1) How many moles of nitrogen can be created (assuming 100% yield)? 2) How many moles of water can be produced? 2) What mass of dinitrogen

    asked by Lauren K. on November 24, 2010
  33. chemistry

    So I did a titration lab at school with NaOH and HCl. i have to find: - volume used, NaOH - Moles of NaOH - Moles of HCl -Volume used unknown HCl - Molarity of HCl solution My concentration of NaOH stock solution was 0.100 mol/lL Final buret reading, NaOH:

    asked by julie on January 4, 2015
  34. Chemistry

    50 grams of water at 85ºC were passed through one side of a two-compartment heat exchanger. Sixty-five grams of 30ºC were passed through the other side. Both streams of water came out at 50ºC Calculate the amount of heat given up by the hot water and

    asked by Sarcasticqueen on March 13, 2013
  35. science 207

    How does changing the water source's designated purpose affect the allowed pollution levels? How do you contribute to water pollution and what concerns do you have about water pollution?

    asked by tamika on July 5, 2011
  36. physics

    how many kilometers per liter will a car obtain if its engine is 25% efficient and it encounters an average retarding force of 500N at highway speed? assume that the energy content of gasoline is 40Mj/liter

    asked by john on December 22, 2009
  37. physics

    The flywheel of an engine has a moment of inertia of 24 kg*m^2. a) if the radius of the wheel is 0.6m, what force is required to accelerate the wheel from rest to an angular velocity of 300 rpm in 6 seconds? b) how many turns does it make during this time?

    asked by Natasha on December 13, 2012
  38. physics

    In the 1950’s, an experimental train that had a mass of 36700 kg was powered across a level track by a jet engine that produced a thrust of 4.67×10^5 N for a distance of 528 m. Find the work done on the train. Answer in units of J.

    asked by allan on January 15, 2015
  39. English/History/Art

    Can someone tell me sites (not a search engine or wikipedia!) where I can find information on James Tissot's "The Concert" and "The Young Woman in a Boat" art pieces? I need to know the themes of these paintings, but I can't seem to find any relevant

    asked by John on November 23, 2007
  40. Physics HELP!!!

    A car (mass 920 kg) drives up a hill (height 328 m) in 143 seconds. At the bottom of the hill, it has a speed of 24 m/s, but at the top, it has slowed down to 14 m/s. Neglecting friction, what is the average engine power

    asked by Molly on October 31, 2010
  41. Physics HELP!!!

    A car (mass 920 kg) drives up a hill (height 328 m) in 143 seconds. At the bottom of the hill, it has a speed of 24 m/s, but at the top, it has slowed down to 14 m/s. Neglecting friction, what is the average engine power

    asked by Molly on October 31, 2010
  42. information literacy

    When choosing your search strategy for a search engine, it's best to A. combine keywords into phrases by using quotation marks. B. enter the least important word first. C. use verbs, articles, and capitals. D. ignore alternate spellings.

    asked by tasha on January 16, 2012
  43. physics

    The flywheel of an engine has a moment of inertia of 24 kg*m^2. a) if the radius of the wheel is 0.6m, what force is required to accelerate the wheel from rest to an angular velocity of 300 rpm in 6 seconds? b) how many turns does it make during this time?

    asked by Natasha on December 13, 2012
  44. Physics

    A car (mass 980 kg) drives up a hill (height 335 m) in 146 seconds. At the bottom of the hill, it has a speed of 23 m/s, but at the top, it has slowed down to 11 m/s. Neglecting friction, what is the average engine power?

    asked by Layla on October 31, 2010
  45. Math

    A model rocket blasts off and moves upward with an acceleration of 12 m/s^2 until it reaches a height of 28 m , at which point its engine shuts off and it continues its flight in free fall. What is the speed of the rocket just before it hits the ground?

    asked by Cassandra on September 8, 2009
  46. Physics

    A car (mass 920 kg) drives up a hill (height 328 m) in 143 seconds. At the bottom of the hill, it has a speed of 24 m/s, but at the top, it has slowed down to 14 m/s. Neglecting friction, what is the average engine power?

    asked by Kristan on October 28, 2010
  47. Environmental Science

    #33. In two or three well-developed paragraphs, explain how water is treated so that it can be used for safe drinking water. Include definitions of the terms potable and pathogens. my answer: There are many steps to how water is treated so that it can be

    asked by y912f on February 23, 2010
  48. Environmental Science

    #33. In two or three well-developed paragraphs, explain how water is treated so that it can be used for safe drinking water. Include definitions of the terms potable and pathogens. my answer: There are many steps to how water is treated so that it can be

    asked by y912f on February 23, 2010
  49. P. Chemistry

    Can anyone direct me on how to solve this problem? All of the variables are makin my head spin--not sure how to organize them. If you can give equations to use that would help.Thnx! 1 L of an impure water solution has a freezing point of -11 °C. Which of

    asked by Tommy on March 8, 2010
  50. chemistry

    HBr is mixed with water. Which is the best description of what you would expect to find in the solution? 1. Br1−, OH1−, and water molecules 2. HBr molecules and water molecules 3. H2Br+, OH1−, and water molecules 4. H3O+, Br1−, and water molecules

    asked by cheri on September 19, 2012
  51. AP Chemistry

    HBr is mixed with water. Which is the best description of what you would expect to find in the solution? 1. H3O+, Br1−, and water molecules 2. HBr molecules, H3O+, Br1−, and water molecules 3. Br+, OH1−, and water molecules 4. HBr molecules and water

    asked by Nick on September 17, 2010
  52. Social studies

    Well I posted this earlier, and this is what it said What are the advantages and disadvantages of selling water to the United States? The ones I got are - We will get more money - We will have less water - We will use more gas to transport the water. I

    asked by Slappy on April 24, 2008
  53. chemistry

    A solution containing 5.00g of solid Al2(CO3)3 dissolved in water to a total volume of 200. mL is combined with 140. mL of 1.0 M HBr. Write the total of ionic equation for the reaction described below and find the molar concentration of all ions remaining

    asked by SELDIL on April 17, 2012
  54. physics

    1.A round wooden log of diameter 73cm floats with half of its radius above water. Determine the log’s density 2.An ideal gas doubles its volume in one of three different ways: at constant pressure, at constant temperature, and adiabatically. For each

    asked by sandhya on June 29, 2010
  55. chemistry

    In the United States, water used for irrigation is measured in acre-feet. An acre-foot of water covers an acre to a depth of exactly 1 foot. An acre is 4840 yd^2. If desalinated water costs $1950 per acre-foot, how much does desalinated water cost per

    asked by Kathy on March 3, 2011
  56. Physics

    A swimmer has 8.20 x 10^-4 m^3 of air in his lungs when he dives into a lake. Assuming the pressure of the air is 95 percent of the external pressure at all times, what is the volume of the air at a depth of 10.0 m? Assume that the atmospheric pressure at

    asked by Jim on April 2, 2008
  57. Physics

    Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min. Flow rate Q = volume/time = speed * cross section area Q=200/5.8=speed*.028....i get 1231.52 or Q=(200/348)=speed*.028...i get 20.52 both are wrong so what do i do?

    asked by ana on November 17, 2009
  58. 1800s Inventions

    describe a modern-day invention that has replaced and/or advanced the 1800s invention and explain how it is more productive in today's society. 1. Cable cars 2. Telegraph 3. Telephone 4. Typewriter 5. Phonograph 6. Motion picture and projector 7. Lightbulb

    asked by Reina B. on October 31, 2013
  59. physic-heat

    the specific heat of water is one of the highest of all substances.why does this make water a useful liquid to use in hot water bottles? and could you use a lump of nickel to warm your bed instead of a hot water bottle?which would be better? why? I will be

    asked by Pauline on April 8, 2007
  60. Chemistry

    The cooling system in an automobile holds 10.0 L of ethylene glycol antifreeze. How much energy is absorbed when the temperature of the ethylene glycol goes from 20°C to 100°C? The density and specific heat capacity of ethylene glycol are 1.11 g/mL and

    asked by Derek on October 21, 2015
  61. Chemistry

    a .50 g of NaCl is added to water to create a .50 L solution. what volume of this solution is needed to create a 1.30L solution that is .100M NaCl

    asked by Harjit on February 5, 2013
  62. Math

    There were 3 similar metal balls in the tank.if the 3 metal balls were out,the water in the tank would drop from 15 cm to 6 cm.find the volume of each metal ball.

    asked by Peachie on February 23, 2017
  63. Chemistry

    1. Commercial vinegar is a solution of acetic acid in water. How would you determine which brand of vinegar contains more acetic acid in a given volume of vinegar?

    asked by Dick Rogers on December 15, 2007
  64. chemistry

    calculate the volume of 0.0321M NaOH that will be required to neutralize 25.00 mL of a 0.0399M hydrochloric acid solution. M1v1=m2v2 since were trying to find out the volume I would change the equation to m2 times V2 divided by M1 0.0399 X 0.025/0.0321

    asked by elizabeth on November 2, 2014
  65. Trigonometry

    Suppose you were at the beach and notice that at 1:00 pm the tide is in, that is, the depth of water is at its deepest. At that time you find that the depth of the water at the end of the pier is 1.9 meters. At 7:00 that evening when the tide is out, the

    asked by John on February 11, 2014
  66. Physics

    i)A boy of 45kg is 5m above a swimming pool on a spring board. The boy jumps up into the air which is 2m above the spring board before falling into the water. What is the maximum depth the boy can reach in the water if the average resisting force of water

    asked by Ami on June 15, 2016
  67. Science

    The cirucumference of a ballon is 75 inches and the diameter is 12 inches what is the volume? Science - Ms. Sue, Saturday, February 18, 2012 at 9:54pm Thank you. volume = 4/3 ð r3 V = (4/3) * 3.14 * 6^3 V = (4/3) * 3.14 * 216 V = (4/3) * 678.24 V = ? I am

    asked by Joseph on February 19, 2012
  68. Chemistry

    Na2CO3 + 2HCL  CO2 + H2O + 2NaCl Reaction Ration is 1:2 Calculate how many moles of HCl are present in the average volume of HCl at the end-point. Avg. volume is 0.0182L

    asked by Amilia on October 23, 2017
  69. chemistry

    a sample of nitrogen gas has a volume of 1.00 l at STP What is the temp in Celsius if the volume is 10.0 L at 2.00 atm * I know to use the combined gas law, and I got the question wrong in my homework assignment, reviewing for a test today please help.

    asked by James on November 21, 2011
  70. Physics

    Blood flows in an aorta of radius 4.62mm at 27.5cm/s. Calculate the volume flow rate. Relevant equation Q (volume flow) = [pi*R^4*(P2-P1)]/(8nL) n=fluid viscosity l=length Tried converting them to.

    asked by aqaurius on March 3, 2012
  71. Chemistry

    Fill a balloon with helium gas to a volume of 2.68 L at 23 celsius and 789mmHg. What would the volume of helium if the pressure changes to 632 mmHg but the temperature is unchanged. This is how I solved it V2 = V1 X P1/P2 2.68L X 23/789 = V2 =.078 L Is

    asked by lt on October 21, 2007
  72. chemistry

    A mixture of 3.00 volumes of H2 and 1.00 volume of N2 reacts at 344 C to form ammonia. The equilibrium mixture at 110.0 atm contains 47.00 % NH3 by volume. Calculate Kp for the reaction, assuming that the gases behave ideally.

    asked by Anonymous on March 8, 2015
  73. Chemistry

    Why does the element calcium react with water differently than magnesium, potassium and sodium, in a way that calcium looks opaque and cloudy in water and when phenlotphtahein is added it looks bright pink but how come the other elements don't look like

    asked by Zyra on October 8, 2016
  74. Physics

    A high diver of mass 70 kg jumps off a diving board and enters the water with the speed of 10 m/s the average upward resistance force of water exerts on the diver is 200 N. How far in the water will the diver travel before coming to rest?

    asked by Anonymous on June 17, 2014
  75. physics

    A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 7840 N/C. The mass of the water drop is 3.84 10-9 kg. (a) Is the excess charge on the water drop positive or negative?

    asked by amber on September 3, 2009
  76. CHEMISTRY

    Is it possible to obtain pure (200-proof) ethanol using fractional distillation from a fermentation mixture that contains equal amounts of water and ethanol? Explain your answer. I know that some water will still remain i would just like to know why some

    asked by Delli on September 21, 2007
  77. Chemistry

    According to the principle of electrical neutrality, a water sample must have the same number of anions and cations. Assuming that a water sample contains 40 mg/L of chloride, 100 mg/L sulfate, and 10 mg/L nitrate, estimate the maximum amount (in mg/L) of

    asked by Caleb on April 29, 2009
  78. Physics

    Water flows from a fire truck through a hose that is 11.7 cm in diameter and has a nozzle that is 2.0 cm in diameter. The firemen stand on a hill 5.0 m above the level of the truck. When the water leaves the nozzle, it has a speed of 20.0 m/s. 1) Determine

    asked by Al on April 11, 2017
  79. classical mechanics

    A Venturi flow meter is used to measure the the flow velocity of a water main. The water main has a diameter of 40.0 cm, and the constriction has a diameter of 20.0 cm. The two vertical pipes are open at the top, and the difference in water level between

    asked by Jhon on January 4, 2014
  80. physics

    A Venturi flow meter is used to measure the the flow velocity of a water main. The water main has a diameter of 40.0 cm, and the constriction has a diameter of 10.0 cm. The two vertical pipes are open at the top, and the difference in water level between

    asked by Anonymous on December 14, 2013
  81. physics (Urgent)!!!!!!!!!!!!!!!!!!!!!!

    A Venturi flow meter is used to measure the the flow velocity of a water main. The water main has a diameter of 40.0 cm, and the constriction has a diameter of 10.0 cm. The two vertical pipes are open at the top, and the difference in water level between

    asked by Anonimus on January 6, 2014
  82. Physics Classical Mechanics

    A Venturi flow meter is used to measure the the flow velocity of a water main. The water main has a diameter of 40.0 cm, and the constriction has a diameter of 10.0 cm. The two vertical pipes are open at the top, and the difference in water level between

    asked by Anonymous on December 11, 2013
  83. chemistry

    When methanol undergoes complete combustion, the products are carbon dioxide and water. 2CH3OH (l) + 3O2(g) --> 2CO2(g) + 4H2O (g). How much water ( in grams) can you maximally produce if you burn 50g of methanol? In real experiment, you isolate 10 mL of

    asked by Monica on March 22, 2010
  84. Chemistry

    A hard water sample contains 121 mg of CaCO3 per liter of water. Calculate the mass of Na3Po4 needed to remove all Ca^2+ ions from 2.50 L of the water sample? Please help! This question is already on here, but I don't understand the part where it says

    asked by Sam on July 1, 2013
  85. Physics- LOST!

    If the air temperature is the same as the temperature of your skin (about 30.0 C), your body cannot get rid of heat by transferring it to the air. In that case, it gets rid of the heat by evaporating water (sweat). During bicycling, a typical 70.0 kg

    asked by Jamie on December 3, 2007
  86. calculus

    The maker of an automobile advertises that it takes 15 seconds to accelerate from 15 kilometers per hour to 70 kilometers per hour. Assuming constant acceleration, (a) The distance the car travels during the 15 seconds (Round your answer to two decimal

    asked by Sam on April 7, 2016
  87. Physics

    An automobile travelling with a speed of 60km/hr, can apply brake to stop within a distance of 20m. If the car is going twice as fast then calculate the stopping distance and stopping time? (b) Given R1 = 5.0 ± 0.2 and R2 = 10.0 ± 0.1. calculate the

    asked by Shrawan on July 15, 2011
  88. math

    A 200-miles trip by an electric automobile must be completed in 4 hours. If it takes x number of hours to travel the first half of the distance, write an equation describing the average speed for the second half of the trip as a function of x for the 0

    asked by Sarah on February 3, 2012
  89. math

    an automobile manufacture markets the same vehicle in Europe and the U.S.,base on a sample of 100 vehicles in each market, mena quality rating of 4.3 was reported in the U.S. compared to the mean rating of 3.7 in Europe. what test should be used to

    asked by Tonya on February 18, 2012
  90. mgt330

    A worker in an automobile assembly line who chooses this type of work because of the job security it entails is said to be Intrinsically motivated Experiencing overpayment inequity Experiencing underpayment inequity Extrinsically motivated Self-actualizing

    asked by kevin on August 30, 2010
  91. Calc

    An Olympic-sized swimming pool is a rectangular prism that is 50m long, 25m wide, lled with water to a depth of 1.5m. We are going to pump the water out of the pool with a pump that is 0.5 meters above the surface of the water. Compare the costs of

    asked by Jen on May 18, 2014
  92. Physics

    A solid iron cylinder of mass 0.2 kg is quickly transferred from inside boiling water in a beaker at 100 C into 90g of water at 15 C contained in a calorimeter of mass 150g and specific heat capacity equal to 800 J/kg/K. Find the final temperature of the

    asked by Claire on October 9, 2008
  93. Chemistry

    Hard water contains Ca ,Mg ,Fe and , which interfere with the action of soap and leave an insoluble coating on the insides of containers and pipes when heated. Water softeners replace these ions with Na. If 1100. of hard water contains 0.021 M of Ca and

    asked by Brennan on September 27, 2011
  94. Calculus

    A block of ice is exposed to heat in such a way that the block maintains a similar shape as it metls. The block of ice is initially 2' wide, 2 'high, and 3' long. If the change in the width of the ice is -1/3 ft/hr, find: the amount of time it will tak

    asked by W on February 8, 2012
  95. Physics

    A cell phone, when weighed in air has a weight of 5.5 newton. When completely immersed in water, however, it has a weight of 3.3 newton. Find the volume of the cell phone.

    asked by Loiso on March 18, 2012
  96. Economics

    For each pair of commodities, state which you think is the more price-elastic and gave your reasons: perfume and salt; penicillin and ice cream; automobiles and automobile tires; ice cream and chocolate ice cream.

    asked by Michael M. on January 13, 2011
  97. physics

    A graduated cylinder is inverted in a very large bucket of water. The depth of the water in the container is 6 m and the top of the bucket is open to the air in the room. The mouth (bottom) of the graduated cylinder is 4 m above the bottom of the

    asked by unknown on December 30, 2013
  98. algabra

    cubes 1 and 2 are similar if the volume of cube 2 is 45 and the scale factor between sides of the two is 2:3 what is the volume of cube 1?

    asked by nicholas on October 20, 2011
  99. science

    uncertainity in head volume =3/59xC2 x delta VC Head volume is 3138.86cm3

    asked by karrimah on March 11, 2011
  100. Chemistry

    One volume of a hydrocarbon require 3 volume of oxygen for complete combustion then formula for hydrocarbon

    asked by Anonymous on August 28, 2016