1. Chemistry 1300

    1) Aluminum metal reacts with chlorine gas to form solid aluminum trichloride, AlCl3. What mass of chlorine gas (Cl2) is needed to react completely with 163 g of aluminum? 2) Magnesium (used in the manufacture of light alloys) reacts with iron(III)

    asked by William T on September 12, 2014
  2. English

    As promised, I'm sending you 5 sentences I'm finding it difficult to change. Thank you. 1)In the second stanza there is the description of a gas attack toward the trenches: a white fog raises up suddenly. While the poet manages to wear the gas mask,

    asked by Henry1 on April 27, 2011
  3. physics

    A 3.0 m tall, 42 cm diameter concrete column supports a 230,000 kg load. By how much is the column compressed? Assume Young's modulus for concrete to be 3.0 1010 N/m2. in mm

    asked by Kate on July 2, 2011
  4. Math

    A steel reinforcing rod is 12 ft. long and 1" thick in diameter. If a cubic foot of steel weighs 490 lb., how much does the rod weigh (to the nearest pound)?

    asked by Rhett cowley on April 30, 2014
  5. Maths

    A cone formed by bending a sector of a circle having an angle of 288 degrees. Find the radius of the base of the cone if the diameter of the circle is 18cm

    asked by Anonymous on September 13, 2018
  6. Maths

    A cone is formed by bending a sector of a circle having an angle of 288 degrees.find the radius of the base of the cone if the diameter of the circle is 18cm

    asked by Anonymous on September 12, 2018
  7. physics

    A centrifugal pump pumps 100 lbs/hr of water 100 ft high to the top nozzle of a distillation column. The pump impeller is 3 ft diameter?

    asked by Anonymous on October 20, 2014
  8. physics

    The curved artery can be approximated as a semicircular arch whose diameter is 4.9 cm. If blood flows through the aortic arch at a speed of 0.35 m/s, what is the magnitude (in m/s2) of the blood's centripetal acceleration?

    asked by Billy on March 28, 2013
  9. Maths

    Wxyz is a cyclic quard. If the bisector of angle xwz and angle xyz meet the circle at point a and b resp. then prove:ab is a diameter of a circle

    asked by Anup on September 5, 2018
  10. maths-surface area

    A cone 7dm high and 6 dm in diameter is placed on the ground. Sand is poured over it until conical heap 21 dm high and 33 dm circumference at the bottom is formed. Find how many m^3 of sand is there?

    asked by anoynomous on March 18, 2013
  11. engineering

    when i do imaging of tissue to look at collagen structure using a 2 photon microscopy, but im not familiarized with the methods to measure the diameter of the collagen and the area occupied by it. Does anyone know how do researchers measure them

    asked by tech on April 10, 2011
  12. Math

    You need to choose a container to a section of Pipe into . The pipe diameter is 6inches ,and the section is 100feet long how many liquide ,in cubic feet do you need What the answer pleasé

    asked by Arafat on December 3, 2016
  13. Claflin

    A reflecting, spherical Christmas tree ornament has a diameter of 8.0 cm. A child looks at the ornament from a distance of 20 cm. Describe the image she sees. image location in centimeters.

    asked by Ashley on June 13, 2011
  14. math

    Find the weight of led pipe is 3.5 m long if the external diameter of pipe is 2.4 cm and the thickness of led is 2mm and 1cm cube of the leg width is 4g

    asked by aman on January 15, 2017
  15. calculus

    A conical tank has a diameter of 9ft and is 12 ft deep. If the tank is filled with water of density 62.4 ft/cubic ft, how much work is required to pump the water over the top?

    asked by Anonymous on February 15, 2012
  16. Help Math One Queation

    A cone-shaped container has a height of 9 in. and diameter of 2 in. It is filled with a liquid that is worth $2 per cubic inch. What is the total value of the liquid in the container? Use 3.14 for π . Anyone who knows the answer are just willing to help

    asked by Mia on February 15, 2017
  17. Math

    rose is getting a snare drum for her birthday! They are 14 inches in diameter. I want to wrap ribbon around 4 times. How many inches of ribbon do i need? write the formula, and show your work.

    asked by Miracle on May 24, 2016
  18. solid mechanics

    A round bar 40 mm diameter was found to be 0.000775 mm. Find the Poisson's ratio and Young's Modulus for the material of the bar. Take value of shear modulus as 40 kN/mm square.

    asked by ripon on August 13, 2013
  19. Physics

    a safety harness is connected to a cable with a report breaking stress of 800MNm2. what mass could be hung from a harness if the diameter of the cable was 6mm. how do I work this out?

    asked by Campbell on October 11, 2013
  20. Physics 212

    Two copper wires have equal lengths, but the diameter of one is three times that of the other. a) The resistance of the thinner wire is _____ times that of the thicker wire: (Prove your work) 1) 3 2) 1/3 3) 9 4) 1/4

    asked by Marcu on January 6, 2014
  21. Fluids

    A pipe of constant diameter d = 10.5 cm carries water up a hill h = 38.1 m high. How much pressure is required at the bottom of the hill if the water is to reach the top? Any help would be great

    asked by Sasha on March 9, 2012
  22. Rate measure

    A balloon in the form of a right cone surmiunted by a hemispere,having a diameter equal to height of the cone,is being inflated.how fast is its volume changing w.r.t its total height 'h' when h

    asked by Abhi on July 1, 2012
  23. trig

    A wheel with a 22 inch diameter is turning at the rate of 31 revolutions per minute. What is the linear speed of a point on the rim, measured to the nearest inch per minute?

    asked by jre on March 4, 2016
  24. geometry

    How many square inches are in the lateral surface area and total surface area of an aluminum can with 2 1/2 in. diameter and 4 3/4 in. height? I've worked on this until I'm crossed-eyed and it's not coming out right!

    asked by tmouery on March 9, 2013
  25. physics

    What is the resistance of 6.2mi of copper wire with a diameter of 0.57mm ? The answer is suppose to be in Kohm for the resistance i got 656.9 ohm but don't know how to convert it in to kohm

    asked by Cassie on January 28, 2011
  26. Math

    The diameter of my trundle wheel is 50cm. I use it to measure the length of the school park. It rotates 87 times. What is the length of the car park, to the nearest metre?

    asked by Emily on September 28, 2016
  27. maths

    A cylindrical vessel without a lid is made from a sheet of metal . Find the area of the metal required if the length of the vessel is 35cm and its diameter is 28cm ????

    asked by tuhituhi on November 21, 2012
  28. Math

    Diameter of a circle is 1.3*10^-12 what is the radius and Find the trinmial parrelgram represents area pf a parrelogram whose base is 3x+2 meters and height is 2x+3 meters find A(3)? Do not understand these what so ever please help me

    asked by Virginia on June 2, 2010
  29. math

    a radial arm saw has a circular cutting blade with a diameter of 10 inches. it spins at 200 rpm. what is the linear speed of one of the 12 cutting teeth on a blade?

    asked by bhavik on November 17, 2015
  30. physics

    What is the length of copper wire is required to produce a 4mohm resistor? Assume the diameter of the wire is 1mm and that the resistivity roh copper is .0000000178ohmm

    asked by beyene dendea on September 4, 2017
  31. Trigonometry

    The wheels of a scooter have a diameter of 4.5 inches. If the person riding the scooter is traveling down hill at 15.0 mph. what is the approximate angular speed of the wheels in radians per second

    asked by Bob on September 25, 2014
  32. Math

    A car tire has a diameter of 3 feet and is revolving at a rate of 45 rpm. At t = 0, a certain point is at height 0. What is the height of the point above the ground after 45 seconds? Can you lead me into the right direction?

    asked by Dara on August 10, 2011
  33. math

    Caitlyn bought a helium tank to fill spherical balloons for a party. If the diameter of the filled balloons are 14.4 inches, how much helium would be needed in each balloon?

    asked by Anonymous on February 4, 2015
  34. Physics

    If you are wearing contact lenses with a dioptric power of 3.4 and your eye has a diameter of 2.6 cm, what is the effective focal length of your eye-contact lens combination, in centimeters?

    asked by Morgan on March 26, 2012
  35. Physics

    The diameter of the Moon is 3.78x10^6m. It subtends an angle of .00982 radians at the surface of Earth. How far is the Moon from Earth? (Please explain I can't wrap my head around this question.)

    asked by Harry on November 13, 2014
  36. math

    If a flywheel is 3 fee in diameter and if a belt over the wheel is traveling at the rate of 3000 feet per minute, find the number of revolutions of the wheel per minute.

    asked by Hazel :) on September 2, 2011
  37. precal

    A wheel with a 22 inch diameter is turning at the rate of 31 revolutions per minute. What is the linear speed of a point on the rim, measured to the nearest inch per minute?

    asked by jre on February 28, 2016
  38. math

    You order a pizza. The pizza has a diameter of 14 inches and it is cut into 12 equal slices. You eat four slices, how much of the area have you consumed. How long is the remaining crust.

    asked by Kate on March 27, 2016
  39. geometry

    A ball of diameter 20 cm fits exactly inside a cylindrical container. The maximum volume of liquid which can be poured into the cylindrical container when empty is ________ cm3. [π=3.14]

    asked by how do i start working on this problem on April 4, 2012
  40. Math

    You order a pizza. The pizza has a diameter of 14 inches and it is cut into 12 equal slices. You eat four slices, how much of the area have you consumed. How long is the remaining crust.

    asked by Katie on March 27, 2016
  41. Math

    A carnival ferris wheel that has a diameter of 18m, goes 4 seconds every revolution, there are 5 revolutions, also the ferris wheel is 2m above the ground Cosine and Sine equation needed

    asked by worm on December 8, 2016
  42. Physics

    A closed organ pipe 0.8 m long has a diameter of 7.0 cm. The air in the church is 15oC. What is the fundamental frequency? If the heat is turned up to 20oC, what is the new fundamental frequency?

    asked by Kiyah on March 27, 2011
  43. masters

    A wheel with a 22 inch diameter is turning at the rate of 31 revolutions per minute. What is the linear speed of a point on the rim, measured to the nearest inch per minute?

    asked by jre on February 28, 2016
  44. Physics

    Water flows at 2.4 m/s through a garden hose of diameter 1.59 cm and emerges from a nozzle of radius 0.64 cm. If the nozzle is directed vertically upward, to what height would the water rise?

    asked by Chai on November 18, 2015
  45. Physics

    A laser beam is directed at the Moon, 380,000 km from Earth. The beam diverges at an angle of 4.6×10−5 rad. 1. What diameter spot will it make on the Moon?

    asked by Nick on November 22, 2010
  46. math

    1. the speed of light is 8.0x^8m/s in standard form that is? 2. the average size of a virus is 2x 10^-10 nanometers in diameter. how to write the number(s) given scientific notation in standard form. thank you

    asked by melves on May 21, 2013
  47. math

    a cylindrical vessel without lid is made from a sheet of metal find the area of metal required if the length of the vessel is 35cm and its diameter is 28cm.

    asked by akash tiwari on March 13, 2016
  48. math

    A cylindrical container has a diameter of 12 inches and a height of 15 inches, as illustrated in the accompaying diagram. What is the volume of this container to the nearest tenth of a cubic inch?

    asked by Anonymous on June 14, 2009
  49. physics

    A 40cm diameter wheel accelerates uniformly from 240 rpm to 360 rpm in 6.5s. How far (linearly) will a point on the edge of the wheel have traveled in this time?

    asked by Lilith on April 11, 2010
  50. physical biochemistry

    One mole of an ideal monatomic gas initially at 300 K is expanded from an initial pressure of 10 atm to a final pressure of 1 atm. Calculate ��E, q, w, ��H, and the final temperature T2 for this expansion carried out according

    asked by mary on February 16, 2010
  51. Calculus

    an open topped cylinder has a volume of 125 cubic inches. determine the radius of the pot that will minimize it's surface area. What I have so far... radius =r keight =h V=πr²h 125/πr²=h SA = πr² + 2πr(h) = πr² + 2πr(125/πr²) SA =πr² +250/r

    asked by Dewayne on March 24, 2013
  52. Physics

    James Cameron piloted a submersible craft to the bottom of the Challenger Deep, the deepest point on the ocean's floor, 11,000 m below the surface. What was the total inward force on the 1.1-m-diameter pilot sphere in which Cameron sat?

    asked by Kelsey on August 22, 2018
  53. science

    if a scale of the solar system was built where 1mm equaled 1 mile, could the model be practically built in a city? yes or no I suppose the answer would be no because that is a really small diameter is 742 billion mm I just wanted to check with someone

    asked by Rose on September 11, 2017
  54. Geometry

    40. Find the surface area of a conical grain storage tank that has a height of 42 meters and a diameter of 20 meters. Round the answer to the nearest square meter. (1 point) 3,028 m2 3,971 m2 1,357 m2 1,671 m2

    asked by Amanda on June 12, 2013
  55. physicss please help

    Calculate the terminal velocity for a baseball. A baseball's diameter is approximately d = 0.073 m, and its mass is m = 0.146 kg. Express your answer in meters per second and miles per hour. (Assume a drag coefficient of 1 and air density of 1.3 kg/m3.) __

    asked by kj on February 14, 2009
  56. trig

    an electric hoist is used to life a piece of equipment y = 2.6 feet. the diameter on the hoist is x = 12 inches. find the number of degrees through which the drum must rotate (round to the nearest integer). *I do apologize, there is a figure in my

    asked by xiahou on October 21, 2015
  57. fire dynamics

    11. Suppose 3,500 gallons of gasoline spill into a banked up area that measures circular area that is 10ft in diameter. If the fuel’s vertical burning rate is 6 in/hour, how long will the fire last if it is left unattended?

    asked by clint on October 3, 2017
  58. Physics

    An electron beam of a TV picture tube is accelerated through a potential difference of 2.00 kV. It then passes into a magnetic field perpendicular to its path, where it moves in a circular diameter of .360 m. What is the magnitude of the field? I am lost.

    asked by J on February 26, 2008
  59. physics

    An amusement park ride consists of a rotating circular platform 8.09 m in diameter from which 10 kg seats are suspended at the end of 2.19 m mass less chains. When the system rotates, the chains make an angle of 14.8 ◦ with the vertical. The acceleration

    asked by Anonymous on December 10, 2014
  60. calculus

    A uniform thin sheet of metal is cut in the shape of a semicircle of radius R and lies in the xy plane with its center at the origin and diameter lying along the x axis. Find the position of the Center of Mass using polar coordinates.

    asked by Jacob on April 20, 2010
  61. physics

    An evacuated spherical diving bell containing a camera is in the ocean at a depth of 107 m. It has a flat, transparent, circular port with a diameter of 10.5 cm. Find the magnitude of the total force on the port. For the density of seawater use 1025 kg/m3.

    asked by Emily on October 27, 2012
  62. calculus

    Hi, I'm having trouble with this problem... "If the strength of a rectangular beam of wood varies as its breadth and the square of its depth, find the dimensions of the strongest beam that can be cut out of a round log, diameter d. " I can't come up with

    asked by Creating a formula from 2 variables on January 29, 2008
  63. physics

    a current of 10A flows into a parallel plate capacitor with square plates with area .5m^2 how do you find the dE/dt between the plates? what is the line integral B.dl around a circular closed contour with a diameter of 10cm perpendicular to the electric

    asked by sarah on December 9, 2008
  64. quant chemistry

    A standard solution of Mn2+ was prepared by dissolving 0.250 g of Mn in 10 mL of concentrated HNO3 (measured with a graduated cylinder). The resulting solution was quantitatively transferred to a 100 mL volumetric flask and diluted to volume with distilled

    asked by John on February 12, 2016
  65. Physics

    A weight of 40N was attached to the end of a wire during modulus experiment, if the length of the wire is 4m and the diameter is 0.44mm and the extension recorded is 0.30mm. calculate the stress and strain of the wire?. take[Pi=3.142

    asked by Ochuko on January 22, 2011
  66. gen physics II optics

    Find the radius of a star image formed on the retina of the eye if the aperture (pupil) diameter at night is 0.70 cm and the length of the eye is 3.1 cm. Assume the wavelength of the starlight in the eye is 500 nm. (1nm=10^9 m)

    asked by Alinkashia on July 27, 2010
  67. Math

    A cylindrical water tank is 70cm in diameter to begin with it is full of water a leak starts in the bottom so that it looses 10 litres every 1 hour how long will it take for the water level to fall by 20cm.

    asked by Daniel on June 10, 2016
  68. physics

    A hydraulic lift has two connected pistons with cross-sectional areas 5 cm2 and 350 cm2. It is filled with oil of density 740 kg/m3. a) What mass must be placed on the small piston to support a car of mass 1400 kg at equal fluid levels? 20 OK HELP: The

    asked by Taylor on November 8, 2010
  69. Chemistry

    The specific heat capacity of Lead is 0.127J/degrees C*g. What is the molar heat capacity of Lead? What is the heat capacity of a lead cylinder that has a mass of 235000g?

    asked by Brittany on December 9, 2010
  70. Physics

    A(n) 160 g block is pushed by an external force against a spring with spring constant of 1260 N/m until the spring is compressed by 11.8 cm from its uncompressed length. The compressed spring and block rests at the bottom of an incline of angle θ =

    asked by Kristy on October 25, 2014
  71. Plane trigonometry

    A pulley having a diameter of 36 cm is turned by a belt that moves at the rate of 5m/sec . How many revolutions does the pulley make per/sec?

    asked by Dhara Mae Tejor on December 4, 2015
  72. physics

    Water flows through a 1.2 cm diameter pipe into a 155 L bathtub, which it fills in 8 min.What is the speed of the water in the pipe?

    asked by mohammad on November 12, 2011
  73. Math

    A satellite dish has a diameter of 32 inches and is 6 inches deep. If the antenna needs to be put at the focus of the parabola, where would the parabola be placed?

    asked by Harry on November 18, 2016
  74. Physics

    When a circular hole is drilled into an aluminum sheet, does the diameter of the hole become larger or smaller when the sheet is heated?

    asked by Mary on July 9, 2010
  75. physics

    the resistance of copper wire of length 1m is 0.1 ohm the diameter of the wire is 0.045cm find its specific resistance

    asked by amit kumar on March 5, 2013
  76. physics

    Water flows through a 1.2 cm diameter pipe into a 155 L bathtub, which it fills in 8 min.What is the speed of the water in the pipe?

    asked by mohammad on November 12, 2011
  77. Math Can someone check my answers ?

    What is the surface area of a circle that has a diameter of 14 inches? A. 49.86 in2 B. 153.86 in2 C. 196.86 in2 D. 616.86 in2 B

    asked by xleogirlx on November 4, 2013
  78. physics

    A grinding wheel 0.28 m in diameter rotates at 2400 rpm. What is the acceleration of a point on the edge of the grinding wheel?

    asked by Cara on April 19, 2011
  79. Math

    A wheel with a diameter of 2 meters rolls on the street for 100 meters. Most nearly, the wheel made how many complete revolutions? A. 64 B. 32 C. 16 D. 8

    asked by Kalifire on August 15, 2014
  80. physics

    Water flowing through a 1.9-cm-diameter pipe can fill a 500L bathtub in 5.1min. What is the speed of the water in the pipe?

    asked by anad on December 2, 2014
  81. Math

    Need help on the question below. A pool has a diameter of 12 ft. There is a sidewalk that extends 3 ft out from the side of the pool. How many feet of fencing will be needed to go around the sidewalk? Thanks...

    asked by Brandi on November 8, 2013
  82. physics

    A cylindrical pipe 30 cm in diameter carries water at a volumetric flow rate of 10-3 m3/s. The pattern of the flow in the pipe ...

    asked by noreen on January 12, 2011
  83. physics

    A grinding wheel 0.40 m in diameter rotates at 2200 rpm. What is the acceleration of a point on the edge of the grinding wheel?

    asked by Corey on October 31, 2010
  84. math

    four pencils are held together in a square by an elastic band if the pencils are of diameter 7mm what is the length of the band in this position

    asked by thor on March 4, 2017
  85. Physic

    Determine the mass flow rate of water through a pipe with a diameter of 3.3 cm when speed at which water travels through the pipe is 2.5 m/s.

    asked by tina on May 2, 2014
  86. math

    Rotations per Minute . How many rotations per minute must a wheel of diameter 1.5 m make to achieve a speed of 45 kmph ? (Approx pi= 3 ).

    asked by RAMARAJU on September 1, 2016
  87. Math

    The diameter of a cylindrical can of motor oil is 3.5 inches (in). The height of the can is 6.5 in. Approximately how many cubic inches of oil will the can hold?

    asked by Chelsea on May 2, 2008
  88. Physics

    Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min.What is the speed of the water in the pipe?

    asked by ana on November 15, 2009
  89. Physics

    Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min.What is the speed of the water in the pipe?

    asked by Ana on November 15, 2009
  90. algebra,geography

    Rotations per Minute . How many rotations per minute must a wheel of diameter 1.5 m make to achieve a speed of 45 kmph ? (Approx pi= 3 ).

    asked by RAMARAJU on September 1, 2016
  91. Physics

    Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min.What is the speed of the water in the pipe?

    asked by NS on November 13, 2009
  92. physics

    A cylindrical pipe 30 cm in diameter carries water at a volumetric flow rate of 10-3 m3/s. The pattern of the flow in the pipe ...

    asked by noreen on January 12, 2011
  93. physics

    Two electrons are placed; one at north pole and other at south pole of earth. Find the force between them. Given diameter of earth= 12800 km.

    asked by srabani mishra on July 4, 2014
  94. math

    a circle has a circumference of 110.6mm find diameter to the nearest tenth A.35.2mm b.36.2mm c.37.2mm d.38.2mm

    asked by makeeda on January 16, 2010
  95. physics

    Water is flowing at 6 m/s in a circular pipe. If the diameter of the pipe decreases to five-seventh its former value, what is the velocity of the water downstream?

    asked by David on November 9, 2010
  96. physics

    A grinding wheel 0.40 m in diameter rotates at 2200 rpm. What is the acceleration of a point on the edge of the grinding wheel?

    asked by Eden on October 31, 2010
  97. Physics

    Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min.What is the speed of the water in the pipe?

    asked by NS on November 14, 2009
  98. math

    A segment with endpoints C(-3, 3)and D(7, 3) is the diameter of a circle. a. What is the center of the circle? b. What is the length of the radius? c. What is the circumference of the circle? d. What is the equation of the circle?

    asked by Joshua on March 21, 2018
  99. Math

    a square pizza measuring 8 inches by 8 inches that costs $10 or a round pizza with a 9 inch diameter that also cost $10

    asked by Debbie on February 2, 2013
  100. physics

    A grinding wheel 0.40 m in diameter rotates at 2200 rpm. What is the acceleration of a point on the edge of the grinding wheel?

    asked by Eden on October 31, 2010