1. math

    A circular racetrack has a diameter of 200 meters. What is the approximate distance a car travels in meters for three full revolutions around the track? use 3.14 for pie.

    asked by Abby on November 22, 2010
  2. physics

    How does the resistance of a piece of metal change if both its length and its diameter are reduced to one half their original values? .. im confused because i don't know what the shape of the metal is...please help!

    asked by Anonymous on March 7, 2010
  3. maths

    A train moving on a circular track with a diameter of 14,642 km,takes 50 minute to complete one revolution. calculate the peripheral velocity of the train in km/h

    asked by princess on March 2, 2017
  4. physics

    For safety in climbing, a mountaineer uses a nylon rope that is 65 m long and 1.1 cm in diameter. When supporting a 94-kg climber, the rope elongates 1.4 m. Find its Young's modulus.

    asked by greg on March 29, 2012
  5. physics

    An automobile travelling with an initial velocity of 25m/s is accelerated to 35m/s in 6 second. The wheel of automobile is 80cm in diameter. Find the angular acceleration

    asked by Vitus on February 1, 2012
  6. physics

    For safety in climbing, a mountaineer uses a nylon rope that is 65 m long and 0.9 cm in diameter. When supporting a 92-kg climber, the rope elongates 2.0 m. Find its Young's modulus.

    asked by jim on November 14, 2011
  7. geometry

    The rectangular label will completely cover the lateral surface of the can using as little paper as possible. If the can has a height of 8 cm and a diameter of 7 cm, then what are the width and length (to the nearest centimeter) of the label?

    asked by Emma on February 22, 2011
  8. Biology

    Unit of measurement that scientists use to determine the diameter of an animal cell is the 1 - millimeter 2 - micrometer 3 - nanometer 4 - meter I am stuck on this question, but I believe it is #3 nanometer

    asked by Sarah on March 10, 2008
  9. Physics

    At a rock concert, the sound intensity 1.0 in front of the bank of loudspeakers is 0.10 . A fan is 30 from the loudspeakers. Her eardrums have a diameter of 8.4 .How much energy is transferred to each eardrum in one second?

    asked by Ness on December 13, 2010
  10. Physic, maths, chemistry, biology

    A body of mass 0.1kg is moving on circular path of diameter 1m at the rate of 10 revolution per 31.4sec, then then centripetal force acting on body is A) 0.2N B) 0.4N C)2N D) 4N

    asked by Sahil on November 12, 2017
  11. math

    the diameter of a roller is 70 cm and its length 1.12m. find the area of a playground, if it takes 250 complete revolutions to move once over the playground to level it.

    asked by vinay on February 5, 2017
  12. Physics

    The 1.4 kg, 40-cm-diameter disk in the figure below is spinning at 260 rpm. How much friction force must the brake apply to the rim to bring the disk to a halt in 4.5 s?

    asked by sara on November 19, 2010
  13. math

    my cousin Robert was pushed into a well measuring six feet in diameter and 10 feet deep,with smooth walls and it's bottom covered in water how did he emerge from the well?

    asked by destiny williams on December 11, 2009
  14. physics

    A toy train rolls around a horizontal 1.0-{\rm m}-diameter track. The coefficient of rolling friction is 0.15. What is the magnitude of the train's angular acceleration after it is released?

    asked by Anonymous on March 9, 2013
  15. geometry

    A tricycle tire has a diameter of 24in.How many feet does the tricycle travel when the wheel makes twelve revolutions? round to the nearest hundreth

    asked by Jacobb on June 18, 2011
  16. physics

    Vibration of the dishwasher causes standing waves in a cup. crests form four concentric rings and the diameter of the cup is 6.0cm v=1.5m/x . What is the frequency of the vibrations?

    asked by m on October 13, 2011
  17. Physics

    A pipe contains water at 4.80 105 Pa above atmospheric pressure. If you patch a 3.55 mm diameter hole in the pipe with a piece of bubble gum, how much force must it be able to withstand?

    asked by Lauren on December 13, 2012
  18. Statistics

    The diameters of a wooden dowel produced by a new machine are normally distributed with a mean of 0.55 inches and a standard deviation of 0.01 inches. What percent of the dowels will have a diameter greater than 0.57?

    asked by Jean on February 9, 2010
  19. Physics help someone please

    An 800 g, 40.0 cm diameter hollow sphere is rolling along at 4 m/s when it comes to a 25 degree incline. Ignoring any friction, how far along the incline does it roll before it stops and reverses its direction?

    asked by Anonymous on November 18, 2011
  20. physics

    A 70 kg man stands at the end of a 12 m long platform. The end opposite to the man rests on the edge of a wall, and a support column is located a distance d = 3 m from the end with the man. The platform itself has a mass of 300 kg. (a) How much weight does

    asked by Alex on November 19, 2015
  21. Physics

    A 0.339 kg book rests at an angle against one side of a bookshelf. The magnitude and direction of the total force exerted on the book by the left side of the bookshelf are given by: What must the magnitude and direction of the total force exerted on the

    asked by Rat on October 7, 2014
  22. geometery

    A solid metal cylinder with a 4-in. radius and a 10-in. altitude is melted and recast into solid right circular cones each with a 1-in. radius and a 2-in. altitude. The number of cones formed is

    asked by Anonymous on December 15, 2012
  23. physics

    a) find the total force on the bottom of a cylinder gasoline storage tank 15.0 m high with radius 23.0 m. b) find the total force on the side of a tank.

    asked by eric on September 22, 2017
  24. HELP PLEASE

    So I have a cylinder and I have to find the volume to surface ratio, the measurements are Radius: 2cm Height: 1.5 cm. I have volume of 18.84 and a Surface area of 225.47. Would the ratio be 18.84:225.47?

    asked by Help please? on March 23, 2018
  25. Geometry

    Describe the locus of all points, in space, that are 5 cm from line p. a. a line, 5 cm from line p. b. a pair of parallel lines, each parallel to and 5 cm from line p. c. a sphere with a radius of 5 cm. d. a cylinder with a radius of 5 cm. D?

    asked by Lily on January 5, 2012
  26. physics

    A cart running on frictionless air tracks is propelled by a stream of water expelled by a gas-powered pressure washer stationed on the cart. There is a 1.0-m3 water tank on the cart to provide the water for the pressure washer. The mass of the cart,

    asked by HELP!!!! on March 6, 2011
  27. physics

    The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a steep ramp. The other box is heavier and rests on a ramp that is less steep. The boxes are released from rest at A and allowed to slide down the ramps. The

    asked by Lola on June 22, 2015
  28. Chemistry

    What would be the density of Hydrogen gas at 500 C and 0.76 atm?

    asked by Angelique on February 21, 2014
  29. chemistry

    at STP, chlorine is a gas but bromine is a liquid. why is this?

    asked by lelia on February 5, 2010
  30. chemistry

    What factors affect the rate of diffusion of one gas through another

    asked by lynda smith on November 15, 2009
  31. Science

    How do you find the volume of hydrogen gas produced?

    asked by Genie on October 16, 2012
  32. Phy. Sci

    A phase change form a gas to a soild?

    asked by Wyatt on October 23, 2010
  33. Chemistry

    Why is it necessary to correct the pressure of a gas that is collected over water?

    asked by Maci on September 28, 2011
  34. Science

    as a liquid is heated and changed into a gas what happens to molecules

    asked by Girl with questions. on April 13, 2016
  35. AP Chemistry

    What is the Dumas Method in regards to the molas mass of a gas?

    asked by D on November 4, 2010
  36. math

    a local gas station uses the formula c= o.635L

    asked by amber on February 1, 2010
  37. chem please help

    Find the number of moles of H2 in 1660mL H2 gas.

    asked by Anonymous on July 18, 2013
  38. chem

    If 2.8 of gas has a volume of 0.35 and a pressure of 5.4 , what is its Kelvin temperature?

    asked by liz on November 28, 2011
  39. chemistry

    What is the volume at STP, in liters, occupied by 26.4 g of F2 gas?

    asked by maek on December 2, 2009
  40. college chem

    calculate the density of O2 gas( in g/L) at 1.22 atm and 25 degrees C

    asked by amanda on November 12, 2009
  41. chemistry

    Calculate the volume occupied by 3moles of a gas at r.t.p

    asked by mwamba on March 25, 2015
  42. Chem

    How many molecules are there in an ideal gas with a volume of 1.99 L at STP?

    asked by rachel on March 8, 2018
  43. social question

    how much gas do you use to travel 172 miles at 4.00 a gallon.

    asked by brian on July 3, 2013
  44. social question

    how much gas do you use to travel 172 miles at 4.00 a gallon.

    asked by brian on July 3, 2013
  45. Chemistry

    A gas has a density of 1.25 g/L at STP. What is its molecular mass?

    asked by Alexis on September 3, 2010
  46. Chem

    When 25.0g of Zn reacts with Hcl, how many L of H2 gas are formed at STP?

    asked by Kenya on November 19, 2012
  47. science

    39 ml of a gas is at 0 celsius. What is the new temperature if the volume is decreased to 35 ml?

    asked by meg on October 31, 2010
  48. chemistry

    2. What is the density of propene gas measured at 2.5 atm and 47 C?

    asked by britney on November 26, 2011
  49. science

    Which gas is formed when a hydrogen bomb is detonated?

    asked by lisa on January 25, 2018
  50. Math problem?

    Lauren needs at most $80.00 for gas. How many twenty dollar bills does she need?

    asked by Anonymous on October 23, 2014
  51. Chemistry

    What would be the volume of 5.0 moles of gas at STP? Can you explain how to do it please?

    asked by Linda on March 4, 2014
  52. chemistry

    what gas law did you use to answer my questions earlier?

    asked by mary ann on March 29, 2011
  53. chemistry

    How much of the water (in grams or mL) is consumed to produce 15 mL of the H2 gas

    asked by Ashley on November 22, 2011
  54. science

    what kind of movement is exhibited by gas molecules

    asked by chritopher on January 20, 2016
  55. Chemistry

    What pressur would the propane gas sample have at 75Ml

    asked by Teela Lange on October 22, 2016
  56. chemisty

    What is the approximate mass of 2L of C4H10 gas at STP?

    asked by karen on November 29, 2012
  57. Science

    At what tempertures is your element a solid, liquid, or gas? Why or how?

    asked by Thao on December 30, 2008
  58. chemistry

    How much of the water (in grams or mL) is consumed to produce 15 mL of the H2 gas?

    asked by Shika on November 24, 2011
  59. Science

    What is the volume of 19 grams of flourine gas at stp?

    asked by Molly on July 12, 2012
  60. activity

    which of the following Phenomena does NOT involve the application of gas pressure?

    asked by Anonymous on February 1, 2016
  61. Science

    Describe what happens to particles in a gas substance when it is heated.

    asked by Gemina on December 26, 2018
  62. chemistry

    f the pressure of 2 L of a gas at STP doubles, the new volume would be

    asked by jr on September 5, 2008
  63. chemistry

    4.05 g of an unknown gas at 73 °C and 1.00 atm is stored in a 2.25-L flask.

    asked by aaa on December 2, 2012
  64. chem

    why is hydrogen gas placed in the 1A column of the periodic table?

    asked by Jose on November 9, 2012
  65. Chemistry

    The pressure exerted by a gas in a container depends on? and why?

    asked by ashwee on November 26, 2012
  66. math

    what is this,? 50.0 mg of gas which occupies a volume of0.0064 L?

    asked by Anonymous on October 11, 2011
  67. chemistry

    Is there a gas formed if you heat a sugar? What will be its identity

    asked by shay on October 3, 2012
  68. chemistry

    the volume of any solid,liquid,or gas will change with?

    asked by wayne lover on September 5, 2008
  69. Science

    At what tempertures is calcium a solid, liquid, or gas?

    asked by Thao on December 30, 2008
  70. chemistry

    What is the volume at STP, in liters, occupied by 26.4 g of F2 gas?

    asked by marie on March 30, 2012
  71. Question

    which consume uses natural gas?? I just need a simple answer

    asked by Help! on March 11, 2016
  72. PHYSICS

    WHAT IS OSMOSIS,MATTER,DIFFUSION AND GAS LAW

    asked by AJALA OPEYEMI PUPSY on January 31, 2013
  73. Chemistry

    Determine the density of CO2 gas at STP.

    asked by SusieQ on April 4, 2011
  74. Science

    Is a liquid denser than a gas or less dense or the same density?

    asked by rhon on April 29, 2010
  75. chemistry

    what is the temperature in degrees celsius that your silver becomes a gas?

    asked by josh om on January 19, 2011
  76. physics

    The specific temperature at which a substance changes from a liquid to a gas is an example of a?

    asked by lalt on February 6, 2012
  77. chemistry

    How can a liquid, soda, contain a gas, carbon dioxide?

    asked by carla on March 15, 2012
  78. Chem

    the quantity of gas, in moles, if 66.9 L at 56°C has a pressure of 11.21 kPa

    asked by Sarah Pick on May 9, 2014
  79. chemistry

    What volume would the gas occupy if P2 = 0.29 P1? Answer in units of mL

    asked by reis on May 31, 2014
  80. chemistry

    What is the density of propane (CH3CH2CH3) gas at 25°C and 65.0 cm Hg? (1atm=76 cm Hg)

    asked by GIGI on April 24, 2012
  81. science

    What would be the volume of a gas inside a 360cm box?

    asked by Michael on November 12, 2015
  82. chemistry

    How many grams of CO2(g) are there in 81.0mL of the gas at 0.789atm and 30 ∘C?

    asked by beth on November 3, 2014
  83. chemistry

    The pressure in a 5.75 L container of 48.0 g of bromine gas at 100.0°C is

    asked by Anonymous on November 5, 2013
  84. Science

    What does nitrogen normally exist as? A solid, liquid or gas?

    asked by rhon on April 27, 2010
  85. Geology

    Why are the gas planets found further from the sun that the rocky ones?

    asked by Zukii on January 20, 2011
  86. chemistry

    what is the gas constant (R) for mm Hg? 8.31 is for atm .08206 is for kPa right?

    asked by Avonlea on October 31, 2007
  87. chemistry

    how do you convert volume of gas to moles of solid?

    asked by paul on April 22, 2018
  88. chemistry

    what isw the density of N2O,a gas at STP?

    asked by CARMEN on February 27, 2012
  89. physics

    Why is the pressure different in different areas of a gas filled chamber.

    asked by Anonymous on January 30, 2011
  90. Science

    What is amount of ammonia produced from 56 gm of nitrogen gas

    asked by Manmeet on February 6, 2017
  91. chemistry

    what is the density of methane gas at 2o degree and 115kpa?

    asked by Riana on January 29, 2013
  92. Chemistry

    What is the density (in mg/mL) of a H2S gas at 12.9 atm and 137 K?

    asked by Sydney on November 9, 2014
  93. chemistry.....help plz

    what is the density of methane gas at 20 degree and 115kpa?

    asked by Riana on January 30, 2013
  94. chemistry

    How many grams of CO(g) are in 0.944 L of the gas at 2.26 atm and 257. K?

    asked by Anonymous on December 6, 2014
  95. science

    what is the volume of 1 gram of hydrogen gas at STP

    asked by shellly on January 22, 2013
  96. chemistry

    If 22.0 of gas has a volume of 0.22 at 320 , what is its pressure in mmHg?

    asked by amelia on April 6, 2013
  97. Chem

    If 20.0 L of a gas is cooled from 373 K to 273K, what is the new volume?

    asked by John on April 30, 2012
  98. science

    What keeps the very dense gas at the core of the Sun from becoming a solid?

    asked by john on October 23, 2013
  99. chemistry

    at STP , what is the volume of 7.08 mole of Nitrogen gas ?

    asked by jade on February 8, 2015
  100. electrolysis

    During the process of electrolysis of water only one gas is formed . Why?

    asked by Anonymous on January 26, 2017