1. Ps 327x math

    A spherical tank has a radius of 60 centimeter. Find the maximum volume of water the tank can hold.
  2. Chemistry

    If you add enough water to 175.0 mL of a .15 M NaCl solution until the final volume is 350.0 mL, what will the molarity of the diluted solution be?
  3. Chemistry

    To what volume must 1580mL of 0.2005 N solution be diluted so that the resulting solution will be 0.1899 M? How much water will be needed in the dilution?
  4. science

    Which object is denser, 100cm cubed of wood that weights 61 grams, or 10 grams of water that has a volume of 10ml?
  5. Chemistry

    Mass of flask, boiling chips, foil cap and unknown after cooling reaction 83.350g 2.Mass of flask, boiling chips,and foil cap. 82.657 3. water bath temperature C is 95.0 C 4. Barometric pressure inches of Hg 30.09 5. Accepted molar mass of unknown is
  6. Chemistry

    1. Mass of flask, boiling chips, foil cap and unknown after cooling reaction 83.350g 2.Mass of flask, boiling chips,and foil cap. 82.657 3. water bath temperature C is 95.0 C 4. Barometric pressure inches of Hg 30.09 5. Accepted molar mass of unknown is
  7. College Physics

    Finally, your friend's twin engine jet airplane lands. As it stands on the runway, you hear the sound of the engines getting louder and softer, rhythmically once every 2.3 s. The average frequency you hear is 3650 Hz. What are the differences between the
  8. chemistry

    An empty beaker weighs 39.17 g. a) When completely filled with water, the beaker and its contents have a total mass of 406.25 g. What volume does the beaker hold? Use d =1.00 g/mL as the density of water. for A i got 367.08 but I don't know for this b) How
  9. Physics

    Suppose the density of the Earth was somehow reduced from its actual value to 1300 kg/m3. What would be the value of g, the acceleration due to gravity, on this new planet? Assume the radius does not change. I know that density = mass/volume & the volume
  10. Physics

    By how much does the H20 pressure exceed atmospheric pressure at 3 meters below the surface of a pool with fresh H20. I don't know what equation to use. You have to figure the weight of a column of water of some height h, and horizontal area A. Weight= mg=
  11. Math CALCULUS HELP PLEASE

    Tidal volume is the volume of air displaced in the lungs between inhalation and exhalation (the amount of air in a breath). The residual volume is given by the amount remaining in the lungs even after the deepest exhalation (i.e. the minimum amount of air
  12. physics

    I had asked a question.why when solid body with greater density than water is when dropped from floating boat water level rises? the answer has been given that as the solid body is more dense than water displaces less fluid as compared to when it was a
  13. physics

    A car can go from 0 to 85 km/h in 10 s. If the engine delivered twice the power, how many seconds would it take?
  14. small engine repair

    i need answer to exam 008901600
  15. small engine repair

    i need answer to exam 008901600
  16. Calculus

    You have a conical tank, vertex down, which is 12 feet across the top and 18 feet deep. If water flows in at a rate of 9 cubic feet per minute, find the exact rate of change when the water is 6 feet deep. You know the rate of dV/dt (inflow), and you can
  17. CHEMISTRY!!

    A student determined the calorimeter constant of the calorimeter. The student added 50.00 mL of cold water to 50.00 mK of heated , distilled water in a styrofoam cup. The initial temp of the cold water was 21,00C and the hot water, 29.15C. The maximum temp
  18. Chemistry

    A 7.65 g sample of potassium chlorate,KClO3, was heated to decompose all the oxygen. It was found that 2.25 L of oxygen was collected over water at 25.00degreesC and 1.00 atm of pressure. The vapor pressure of water at that temperature is 23.8 mm Hg. How
  19. Chemistry

    A driving bell is a container open at the bottom. As the bell descends, the water level inside changes so that the pressure inside equals the pressure outside. Intially the volume of air is 8.58m^3 at 1.020 atm and 20 degrees C. What is the volume at 1.584
  20. Math

    A cylindrical storage tank has a height of 100 feet and a diameter of 10 feet. (Use pi = 3.14) What is the lateral surface area of the tank? How do i find lateral surface area of the tank What is the volume? 7850 cubic feet What is the volume in gallons of
  21. Math

    A cylindrical storage tank has a height of 100 feet and a diameter of 10 feet. (Use pi = 3.14) What is the lateral surface area of the tank? How do i find lateral surface area of the tank What is the volume? 7850 cubic feet What is the volume in gallons of
  22. Algebra!!

    1.a swimming pool has a radius of 10 feet and a height of 4 feet. What is the volume? 2.What is the volume of a soup can with a radius of 4cm and a height of 16cm? 3.What is the volume of a triangular prism with a length of 10cm a width of 15cm and a
  23. calculus

    A cylinder is generated by rotating a rectangle with perimeter 12 in. about one of its sides.? Express the volume of the cylinder as a function of x. Find the approximate value of x that maximizes the volume. Then give the approximate maximum volume.
  24. Geometry-Help PLZ

    Each of 6 cubes has a volume of 64 cubic units. If the figure is reduced in size such that the volume of each new cube is 1/8 the volume of the original, what is the surface area of the 6 cubes after the decrease? I came up with 96 sq units Is this
  25. Chemistry

    What volume (mL) of 0.20 M HCl needs to be added to 1.23 L of 0.10 M acetic acid to reduce the percent ionization to 1.00%? Assume the volume of HCl added is negligible compared to the volume of the whole solution, and that the small x approximation is
  26. Geometry

    Given a soda can with a volume of 21 and a diameter of 6, what is the volume of a cone that fits perfectly inside the soda can? (Hint: only enter numerals in the answer blank). 7 because volume of a cylinder is pi r^2 h, and a cone is 1/3 pi r^2 h, which
  27. Technology

    Which of the following statements is true about a plumbing system? a. The potable water system carries used water away from the building b. The potable water system carries water that is safe for drinking c. All potable water that enters a building feeds
  28. 7th Grade Math

    What is the radius of a CD in cm? What\'s the height of a CD cm? What\'s the volume of the CD? What\'s the measure of the radius in the center of the CD to the beginning of the music area and the volume of it? Subtract the answer from Part D from your
  29. amerian history

    What was the goal of Americanization programs in settlement houses? A. to combat the belief that native-born white Americans were superior to newcomers B. to help newcomers learn English and adopt American dress and diet C. to blend traditions from
  30. Science

    A family is planning to build a raised planting area using a blend of peat moss, mulch , and a rich organic soil in which to grow the plants. They have been told first to place on the ground a layer of material that will allow for a proper drainage each
  31. science

    which of the following would help decrease the human ecological footprint? A.using bottled water instead of tap water B.using public transportation instead of riding in a car C.buying books instead of borrowing from the library D.using hot water instead of
  32. physics

    A high diver of mass 50.0 kg steps off a board 10.0 m above the water and falls vertical to the water, starting from rest. If her downward motion is stopped 2.10 s after her feet first touch the water, what average upward force did the water exert on her?
  33. physics

    what is the maximum speed at which automobile can round a curve of 100 ft radius on level if the coefficient of friction between the tires and the road is 0.35?
  34. Physics- science

    An automobile with an initial speed of 4.82 m/s accelerates uniformly at the rate of 2.2 m/s2. Find the displacement of the car after 5.9 s. Answer in units of m
  35. physics

    The brakes on your automobile are capable of creating acceleration of 14 ft/s2. If you are going 66 mi/hr and suddenly see a state trooper, what is the minimum time required to get your car to 55 mi/hr?
  36. math 1

    An advertiser needs a 4-inch picture of a 14 foot automobile. What is the scale factor? Write your answer in simplest form using a colon.
  37. physics

    An automobile tire is rated to last for 60,000 miles. To an order of magnitude, through how many revolutions will it turn? I don't know what circumference i should use for 1 rev
  38. PHYSICS

    An automobile of mass 1200kg accelerates from rest to a speed of 20.0m/s in 12.0 seconds. What is the magnitude of the net force acting on the auto?
  39. Science

    Which component of the technological system is achieved when an automobile airbag inflates? A. Input B. Feedback C. Process D. Output Is the answer B?
  40. College Physics

    A 0.30-m-radius automobile tire rotates how many radians after starting from rest and accelerating at a constant 2.0 rad/s^2 over a 5.0-s interval?
  41. physics

    three spheres have the same volume and all float in water. Spheres A, B, and C have masses of 25g, 30g, and 35g. Which sphere floats the highest.
  42. alegebra

    a stone is thrown into a cylindrical water tank 2 feet in diameter, causing it to rise 1.5 inches. what is the volume of the stone?
  43. Chemistry

    Calculate the density of 150g of a 25% by wieght solution of sodium chloride dissolved in water and the volume of solution is 145ml.
  44. phy

    A scuba diver and her gear displace a volume of 71.0 L and have a total mass of 64.0 kg. (a) What is the buoyant force on the diver in sea water?
  45. Science

    A drop of oil of volume 10^10m spread out on water to make a circular film of radius 10^1m. What is the thickness of the film
  46. chemistry

    200 ml of oxygen is collected over water at 18 degree Celsius and standard pressure, what will the volume of the dry oxygen be at STP?
  47. physics

    A boulder in a river has weight of 65N. It displaces a volume of water with a weight of 10N. Which is the net force on this rock? 55 N down 65 N down 75 N up 75 N down
  48. Chemistry

    A 5 mL sample of 50% (m/v) acetic acid (Hc2H3O2) solution is added to water to give a final volume of 25 mL....what is the final concentration?
  49. science

    A steel block has a volume of 0.08m3 and a density of 7,840kg/m3 what is the force of gravity acting on the block(the weight in water?
  50. Chemistry

    An aqueous solution of volume 7 dm3 is obtained by dissolving 5.5 kg of C12H22O11 in enough water. express the concentration in mol/L and mol/Kg
  51. chemistry

    A solution is made by dissolving 0.10 mole of Na2SO4 in water to a final volume of 1.00 L. What is the molar concentration of Na+ ions in the solution?
  52. Chemistry

    what is the molarity of a solution prepared by dissolving 222 g of sodium carbonate in enough water to make a solution volume of 3250 mL's?
  53. Chemistry

    An aqueous solution of volume 7 dm3 is obtained by dissolving 5.5 kg of C12H22O11 in enough water. express the concentration in mol/L and mol/Kg
  54. chemistry

    how many grams of NaC1 would you dissolve in water to make a total volume of 500ml of solution to produce a 0.5 soution of Nac1?
  55. chem

    If ice were to be placed in a container at a temperature of -2 oC, with a water vapor pressure of 2 torr, you would see a decrease in the volume of solid ice over time.
  56. math

    The volume of a box is the number of cubes it would take to fill it up. If each cube is a centimeter on the edges, the volume would be given in cubic centimeters. What is the volume of the 4cm x 4cm x 6cm box to the right?
  57. Chemistry

    A sample of oxygen gas is collected by displacing water from an inverted bottle as shown in the diagram below. The volume of O2(g) collected is 400.0ml at 25 degree Celsius. The atmospheric pressure is 680 torr and the vapor pressure of water at 25 degree
  58. Algebra

    The volume in cubic feet of a Cd holder can be expressed as V(x)=-x^3-x^2+6x, the depth is 2-x , factor the polynomial to find linear expression for the height and the width. - Do I just factor the -x^3-x^2+6x? It because I know the volume is LWH, so don't
  59. Calculus AB

    What is the maximum volume in cubic inches of an open box to be made from a 16-inch by 30-inch piece of cardboard by cutting out squares of equal sides from the four corners and bending up the sides? Your work must include a statement of the function and
  60. Engineering

    Determine the minimimum depth of a water reservoir that will provide a flow rate of 1200 gpm in a 4 inch diameter horizontal pipe that opens to the atmosphere You ought to consider Bernoulli's equation for this, it is in your text. You can model it as
  61. physics, physics, physics!!!!!

    At a depth of 10.9 km, the Challlenger deep in the Marianas Trench of the Pacific Ocean is the deepest site in any ocean. In 1960, Donald Walsh and Jacques Piccard reached the challenger deep in the bathy scaph trieste. Assuming that sea water has a
  62. Chemistry

    Please help! I don’t know where to start and I need step by step on how to solve: A gaseous mixture inside a rigid steel vessel contains 75% CO2(g) and 25% H2O (g) by volume at 175 degrees Celcius and 225 kPa. The mixture is then cooled to 0 degrees
  63. Algebra

    The volume of a right circular cylinder (think of a pop can) is jointly proportional to the square of the radius of the circular base and to the height. For example, when the height is 10.62 cm and the radius is 3 cm, then the volume is 300 cm3. Find the
  64. AP Chemistry

    2K (s) + 2H2O (l) --> 2KOH (aq) + H2 (g) When 0.400 mole of potassium reacts with excess water at STP, what is the volume of hydrogen gas produced? the answer is 4.48 liters but I keep getting wrong numbers! please help! Thanks!
  65. Chemistry

    a diver swimming at a depth of 10m under the water observes that the size of his air bubbles increase in volume as they rise to the waters surface. which gas law does this relate to?
  66. Math

    The volume V of gas varies inversely as the pressure P on it. If the volume is 240 cm^3 under pressure of 30 kg/cm^2, what pressure has to be applied to have a volume of 160 cm^3 ?
  67. Gr 11 Biology

    if you were a snoker, what lung volumes (tidal volume, expiratory reserve volume or vital capacity) would be most affected? i think the answer would be the expiratory reserve volume
  68. Algebra

    The temperature of a mass of gas (T) varies inversely with volume (V). For a volume of 500 cm^3, the temp is 2.5 degrees Celcius. For a volume of 100 cm^3, what would the temperature be? 12.5 degrees?
  69. Chemistry

    Just having some trouble with this chemistry problem.. Thanks for help! Toxic carbon monoxide (CO) gas is produced when fossil fuels such as petroleum burn without enough oxygen. The CO can eventually be converted to CO2 in the atmosphere. Automobile
  70. Chemistry

    A titration involves titrating 0.4 M NaOH into a solution of 0.2 M H3PO4. a.) Calculate the volume of NaOH that will be required to reach the first equivalence point. b.) Calculate the volume of NaOH required to reach the second equivalence point. Other
  71. Physics

    A high diver of mass 68.2 kg jumps off a board 10.4 m above the water. The acceleration of gravity is 9.8 m/s2 . If his downward motion is stopped 3.58 s after he enters the water, what average upward force did the water exert on him? I already calculated
  72. Environmental Helpp!

    Why would a 1 L bottle of water cost $1.50 whereas 1 L of gasoline currently costs about 90 cents? Discuss our current consumption of bottled water with specific emphasis on its relatively cleanliness compared to tap water, where the water comes from, how
  73. Physcis

    a black of mass 92 kg and volume 0.031 lies at the bottom of the sea how much force is needed to lift it ? take 1.03*10^3 kg/m as the density of sea water
  74. science

    What volume of ethanol must be diluted with water to prepare 674 mL of 0.854 M solution? The density of ethanol is given as 0.789 g/mL. Answer in units of mL
  75. science

    A student is all 32 gram of potassium nitrate in water to prepare 200 ml of solution what is the concentration of solution in terms of mass by volume
  76. Chemistry

    What volume of ethanol must be diluted with water to prepare 768 mL of 0.873 M solution? The density of ethanol is given as 0.789 g/mL. Answer in units of mL
  77. chemistry

    What volume of ethanol must be diluted with water to prepare 315 mL of 0.620 M solution? The density of ethanol is given as 0.789 g/mL. Answer in units of mL
  78. Chem 121

    A solution is made by dissolving 0.35 mole of LiI in enough water to give a final volume of 260.0 mL. What is the molarity of the solution?
  79. Science

    What volume of ethanol must be diluted with water to prepare 768 mL of 0.873 M solution? The density of ethanol is given as 0.789 g/mL. Answer in units of mL
  80. science

    5 L OF H2 GAS WAS COLLECTED OVER WATER AT 25 CELCIUS AND 750 MM PRESSURE CALCULATE THE VOLUME OF DRY H2 AT STP AQUEOUS TENSION AT 25 CELCIUS IS 23 MM
  81. pharmacy calculations

    If 500gm of dextrose are dissolved in 600ml of water, with the final volume being 1000ml, what is the percentage strength of the dextrose in the solution?
  82. Chem help please

    What volume ( L ) of the solute methanol should be added with 4450 mL of the solvent water to make a solution that is 0.443 m methanol. i do not know how to approach this question
  83. math

    A water tank is 12m high. it has a a rectangular base, and the length is 7m more than the width. if the volume is 1728m3, find the dimensions of the tank
  84. Chemistry

    A radiator is to be protected against freezing to -20f. Calculate the volume of C2H4(OH)2 ethylene glycol per liter of water. Density of glycol is 1.11 g/ml
  85. physics

    A full can of soda has a mass of 0.421 kg. It contains 3.57 x 10-4 m3 of liquid. Assuming that the soda has the same density as water, find the volume of aluminum used to make the can.
  86. chemistry

    What volume of distilled water should be added to 500ml of a solution of sulphuric acid to 90% by weight, density 1.81 g.mL-1, to obtain a 10 Molar solution?
  87. Physics

    An object has a weight of 0.852 N. It is suspended from a scale, which reads 0.749 N when the piece is submerged in water. What is the volume of the piece of metal?
  88. Chemistry

    2Na + 2H2O = 2NaOH + H2 Calculat the moles and volume of hydrogen produced when 0.2 moles of sodium reacts with excess water.
  89. Biology

    2 g of glycine (C2H5NO2) are dissolved in water to a total volume of 3 L. What is the concentration of the glycine solution in M? Round answers to two significant figures.
  90. math

    A water tank is 12m high.it has a a rectangular base, and the length is 7m more than the width. if the volume is 1728m3, find the dimensions of the tank
  91. Chemistry

    "What volume of water must be added to 100ml of 15 M of H2SO4 to dilute to 5.0M?" I've tried using lots of different methods but keep having the same answer and don't know if the answer book is wrong or if it's me. Thanks!
  92. Physical Science

    Explain how you can use Boyle's law to determine the new volume of a gas when it's pressure is increased from 270 kPa to 540 kPa? The original volume of gas was 1 l. Assume the temperature and number of particles are consistent. What is the new volume?
  93. Physics

    What is the power output of an engine the does 60,000J of work in 10s?
  94. thermodynamics

    equal to 1/4 th of the heat rejected to the sink. the efficiency of the engine is
  95. Science

    gasline burns in a car engine is a phyical change?
  96. physics

    how much work is done by an engine using 105 watts of power in 3.2 seconds?
  97. science

    What is the maximum amount of work that can be done in 15 seconds by an engine working at 30 kw?
  98. Information Literary Lesson 2

    The search engine Bing Offers
  99. Math

    A rocket engine, 2.39 cross 10−5watts/cm2
  100. physical science

    diagram the motion of pistons in a four stroke engine.