3. A gas is confined in a 0.47-m-diameter cylinder by a piston, on which rests a weight. The mass of the piston and weight together is 150 kg. The atmospheric pressure is 101 kPa. (a)What is the pressure of the

17,995 results, page 100
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

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)

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?

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?

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?

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