Wednesday

August 20, 2014

August 20, 2014

Number of results: 9,474

**chemistry**

I need to find the radius of a cylinder with only the following info: Cylinder height=125um There is 1 C atom/0.01848 nm^2 There are 5.75x10^10 C atoms on the surface of cylinder Use quadratic formula to solve
*February 26, 2013 by kelly*

**another A.P Chemistry Question**

A different rigid 5.00L cylinder contains 0.176mol of NO(g) at 298 k. A 0.176mol sample of 02(g) is added to the cylinder, where a reaction occurs to produce NO2(g) (d) write the balanced equation for the reaction. (e) calculate the total pressure, in atm, in the cylinder at ...
*October 23, 2006 by T-Baby*

**Chemistry**

A 559.0 mL cylinder containing C5H12 at a pressure of 304.0 torr is connected by a valve to 610.0 mL cylinder containing CO2 at 532.0 torr pressure. Calculate the partial pressure (atm) of CO2 when the valve is opened.
*April 12, 2011 by Matty*

**physics**

A marble cylinder that has a diameter of 42 cm and stands 1.25 m tall rests on a flat tile deck. What is the pressure exerted on the deck by the cylinder?
*March 18, 2012 by john*

**Chem**

A cylinder in your car holds 0.45 liters maximum at 760 Torr. When the cylinder is closed to 0.1 liters what is the pressure?
*October 18, 2012 by Anonymous*

**Chemistry**

A 69.4 L cylinder containing C2H6 at a pressure of 570 torr is connected by a valve to 105 L cylinder containing C6H6 at 0.350 atm pressure. Calculate the partial pressure (atm) of C6H6 when the valve is opened.
*April 16, 2011 by itsliferight*

**Physics**

A 2.9-kg 12-cm-radius cylinder, initially at rest, is free to rotate about the axis of the cylinder. A rope of negligible mass is wrapped around it and pulled with a force of 20 N. (a) Find the magnitude of the torque exerted by the rope. (b) Find the angular acceleration of ...
*November 9, 2011 by Kayla*

**Physics**

A marble cylinder that has a diameter of 42cm and stands 1.25m tall rests on a flat tile deck. What is the pressure excerted on the deck by the cylinder?
*January 4, 2011 by Crystal*

**chem**

a steel cylinder holds 1.50 g of ethanol what is the pressure of an ethanol vapor if the cylinder has a volume of 251 cm3 and the teperature is 250 degrees celcius?
*June 30, 2012 by meeh*

**physics**

Three moles of nitrogen gas, N2, at 26.8 ◦C are contained in a 35.8 L cylinder. Find the pressure the gas exerts on the cylinder walls. Answer in units of Pa
*April 26, 2013 by Anonymous*

**Chem**

A 150.0 mL cylinder containing CO at a pressure of 9.50 atm is connected by a valve to 9500 mL cylinder containing B5H9 at 2280 torr pressure. Calculate the partial pressure (atm) of B5H9 when the valve is opened.
*April 15, 2011 by noclueboo*

**phys**

A small metal cylinder rests on a circular turntable that is rotating at a constant speed. The small metal cylinder has a mass of 0.20kg, the coefficient of static friction between the cylinder and the turntable is 0.080, and the cylinder is located 0.15m from the center of ...
*September 25, 2009 by Chelsea*

**Physics**

A small metal cylinder rests on a circular turntable that is rotating at a constant speed. The small metal cylinder has a mass of 0.20kg, the coefficient of static friction between the cylinder and the turntable is 0.080, and the cylinder is located 0.15m from the center of ...
*September 28, 2009 by Tiffany*

**math**

A large cylinder has a volume of about 5,400 cubic cm. A small cylinder is similar in shape to the larger cylinder with a scae factor of 2/3.Which measurement is closest to the volume of a cylinder. f)1600cubic cm g)2400 cubic cm h)2700 cubic cm j)3600 cubic cm The answer is ...
*March 19, 2013 by Courtney*

**Geometry**

a cone full of water has been poured intoa cylinder. what is the depth of thewater in the cylinder? the cone has a height of 15m and a diameter of 20m. the cylinder also has a diameter of 20m and the amount of water in the cylinder is d meters high.
*March 28, 2012 by Slacker*

**Physics**

A Jaguar XK8 convertible has an eight-cylinder engine. At the beginning of its compression stroke, one of the cylinders contains 499 cm ^ 3 of air at atmospheric pressure (1.01\times 10^5 Pa}) and a temperature of 27.0 degrees C. At the end of the stroke, the air has been ...
*November 12, 2012 by Natalie*

**physics**

A 7.2 cm tall cylinder floats in water with its axis perpendicular to the surface. The length of the cylinder above water is 1.4 cm. What is the cylinder's mass density?
*November 30, 2010 by kate*

**algebra**

A cylinder has a radius of 4x + 2 and a height of 5x + 4. Which polynomial in standard form best describes the total volume of the cylinder? Use the formula v = pi r^2 h for the volume of a cylinder.
*February 22, 2012 by jared*

**math**

The cylinder x2+y2=16 divides the sphere x2+y2+z2=100 into two regions I (for the region inside the cylinder), and O (for the region outside the cylinder). Find the ratio of the areas A(O)/A(I) .
*April 6, 2012 by abdul*

**Physics**

2 moles of ideal gas are in a cylinder container with cross-sectional area 1*10^-2 m^3. Cylinder is fitted with a light, movable piston that is open to atmosphere, where pressure is 10^-5 PA.A 50KG MASS PLACED ON PISTON KEEPS IT IN mechanical equilibrium when temperature is ...
*January 13, 2011 by Grace*

**physics**

A cylinder is fitted with a piston that is connected to the bottom by a spring. The spring has a spring constant of k = 3600 N/m. The cylinder is open to air at the top and is frictionless. The radius of the cylinder is 25 mm and the piston has negligible mass. The air beneath...
*November 21, 2013 by jeremy*

**physics**

A solid cylinder of mass 20 kg rotate about its axis of rotation with angular speed 100m/s. The radius of the cylinder is 0.25m. What is the K.E. associated with the rotation of the cylinder what is the magnitude of the angular momentum of the cylinder about its axis
*March 16, 2013 by shubham mahur*

**Chemistry**

You have a 22L cylinder of helium at a pressure of 150atm and a temperature of 31C. How many ballons can you fill, each with a volume of 5.0L, on a day when the atmospheric pressure is 755mmHg and the temperature is 22C? I know I use PV=nRT, but what numbers do I plug in and ...
*September 27, 2009 by Eric *

**Chemistry**

the mass of cylinder one is 1.35 times the mass of cylinder two, and the volume of cylinder one is 0.792 times the volume of cylinder two. If the density of cylinder one is 2.70 g/cm3 what is the density of cylinder two? THIS QUESTION HAS ME GOING CRAZY!!
*September 1, 2013 by Alex*

**8th grade**

2 cylinders are proportional the smaller cylinder has a radius of 4 centimeters, which is half as large as the radius of the larger cylinder. the volume of smaller cylinder =250 cubic cemtimeters. what is the volume of the larger cylinder?
*December 14, 2008 by brianna*

**Physics**

A cylinder has a cross-sectional area of 0.025 m2. How much work is done by a gas in the cylinder if the gas exerts a constant pressure of 7.8 x 105 Pa on the piston, moving it a distance of 0.080 m?
*December 12, 2010 by Jarrid*

**physics**

A cylinder has a cross-sectional area of 0.025 m2. How much work is done by a gas in the cylinder if the gas exerts a constant pressure of 7.8 x 105 Pa on the piston, moving it a distance of 0.080 m?
*December 12, 2010 by Jarrid*

**Physics E&M**

A 68.0 g hollow copper cylinder is 90.0 cm long and has an inner diameter of 1.0 cm. The current density along the length of the cylinder is 1.60×10^5(A/m^2). What is the current in the cylinder? Ive tried many ways but am not getting the correct answer.
*February 12, 2008 by Spencer*

**chemistry**

Titanium is used in airplane bodies because it is strong and light. It has a density of 4.55 g/cm^3. If a cylinder of titanium is 7.75 cm long and has a mass of 153.2 g, calculate the diameter of the cylinder. (V=pi*r^2*h, where V is the volume of the cylinder, r is the radius...
*January 17, 2011 by Maria*

**Math**

The diagram shows a solid metal cylinder. The cylinder has base radius 2x and height 9x. E cylinder is melted down and made into a sphere of radius r. Find the expression for r in terms of x.
*November 17, 2012 by Eleanor*

**Math**

Mass of cylinder 1 = 1.35 mass of cylinder 2. Volume of cylinder 1 = 0.792 volume of cylinder 2. Density of cylinder 1 = 2.10 g/cc. What id density of cylinder 2?
*September 5, 2013 by Kent*

**math**

A cylinder has a diameter of 80 cm and a length of 45 cm. Another cylinder has the same volume but is 80cm long. What is the diameter of the longer cylinder?
*February 21, 2011 by priya*

**Science**

the small cylinder of a hydraulic press has an area of 2"(squared). If a force of 10# is applied to the small piston, how much is the pressure within the larger cylinder increased, according to pascal's principle.
*October 26, 2010 by Lisa*

**Highschool Physics**

A cylinder has a cross-sectional area of 0.025 m2. How much work is done by a gas in the cylinder if the gas exerts a constant pressure of 7.8 x 105 Pa on the piston, moving it a distance of 0.080 m?
*December 12, 2010 by Jarrid*

**Chemistry**

A sample consisting of 22.7 g of a nongaseous, unstable compound X is placed inside a metal cylinder with a radius of 8.00 cm, and a piston is carefully placed on the surface of the compound so that, for all practicla purposes, the distance between the bottom of the cylinder ...
*December 16, 2008 by Anonymous*

**physics**

A string is wrapped around a uniform solid cylinder of radius r. The cylinder can rotate freely about its axis. The loose end of the string is attached to a block. The block and cylinder each have mass m. Note that the positive y direction is downward and counterclockwise ...
*January 22, 2010 by Gabe*

**Math**

A cylinder with a radius of 7cm has a capacity of 23000 cm3. a)What is the length/height of the cylinder? b)This cylinder is used to carry water underneath a road. How many cylinders are needed if the road is 500m long?
*December 3, 2013 by Gia*

**chemistry**

A 8.00 L cylinder containing SF6 at a pressure of 0.400 atm is connected by a valve to 91.0L cylinder containing 02 at 342 torr pressure. Both cylinders are at 8.00 C. Calculate the partial pressure (torr) of SF6 when the valve is opened and the temperature of the cylinders ...
*January 27, 2008 by betty*

**Chemistry**

A small cylinder of helium gas used for filling balloons has a volume of 2.85L and a pressure of 13300kPa at 25 ∘C.How many balloons can you fill if each one has a volume of 1.50L and a pressure of 1.26atm at 25 ∘C?
*April 27, 2014 by Tyler *

**math**

2 cylinders are proportional. The smaller cylinder has a radius of 4 cm. which is half as large as the radius of the larger cylinder.The volume of the smaller cylinder is 250 cubic cm. What is the approximate volume of the larger cylinder?
*December 14, 2008 by brianna*

**geometry**

the volume of a cylinder is 88 m. If the radius of the cylinder is quadrupled, what will be the volume of the new cylinder in cubic meters?
*April 22, 2012 by Mary*

**Chemistry II**

If the volume of a cylinder is 1.01 L at STP (0 C and 760 Torr). If the piston is depressed 5.62 cm further into the cylinder, by how many times will the gas pressure increase? What formula would I use to solve this problem? I tried using P1V1 = P2V2, but I don't know how to ...
*January 29, 2010 by Michelle*

**ap chemistry**

A sample consisting of 22.7 g of a nongaseous, unstable compound X is placed inside a metal cylinder with a radius of 8.00 cm, and a piston is carefully placed on the surface of eth compound so that for all practical purposes, the distance between the bottom of the cylinder ...
*November 5, 2006 by sara*

**Math 8th grade algerbra**

a cylinder has a radius of 3cm and a length of 10cm every dimention of the cylinder is multiplied by 3 to form a new cylinder how is the ratio of the volumes related the ratio of corresponding dimensions? how would i do this?
*October 27, 2010 by Courtney*

**chemistry**

A 250 ml cylinder containing C2H4 at a pressure of 1.00 atm is connected by a valve to 950 ml cylinder containing PF3 at 2.50 atm pressure. Calculate the partial pressure (atm) of Pf3 when the valve is opened.
*January 27, 2008 by betty*

**math**

The volume of a cylinder (think about the volume of a can) is given by V = £kr2h where r is the radius of the cylinder and h is the height of the cylinder. Suppose the volume of the can is 100 cubic centimeters. a)
*March 10, 2007 by need help*

**geometry**

a cube is placed inside a right circular cylinder. How may cubic feet of water will file the cylinder that has the cube in it? The sides of the cube are 24. The radius of the cylinder in 12 square root of 2 thanks you
*February 23, 2011 by jenny*

**Physics**

The cubit is an ancient unit of length based on the distance between the elbow and the tip of the middle finger of the measurer. Assume that the distance ranged from 43 to 53 cm, and suppose that ancient drawings indicate that a cylindrical pillar was to have a length of 6.0 ...
*February 4, 2013 by Kdom*

**Chemistry**

A 30.9 L cylinder containing C2H4F2 at a pressure of 114.0 torr is connected by a valve to 0.865 L cylinder containing C4H10 at 114.0 torr pressure. Calculate the partial pressure (atm) of C4H10 when the valve is opened.
*April 15, 2011 by ChemLover*

**Chemistry**

A 30.9 L cylinder containing C2H4F2 at a pressure of 114.0 torr is connected by a valve to 0.865 L cylinder containing C4H10 at 114.0 torr pressure. Calculate the partial pressure (atm) of C4H10 when the valve is opened.
*April 15, 2011 by BOB PLEAE HELP!!!*

**Thermodynamics**

Water vapor was flowing through the pipeline at 0,8 MPa pressure and 250 °C temperature. A cylinder-piston mechanism with a spring was attached to the pipeline with a closed valve. The valve was opened and the pressure inside the cylinder increased up to 0,8 MPa. Then the ...
*March 13, 2013 by Moussa*

**math**

A right cylinder has a total surface area of 471 square centimeters. The radius of the cylinder is 5 centimeters. What is the height in centimeters of the cylinder?
*January 26, 2010 by Aneras*

**Physics**

Useful Constants: 1 Torr = 133.32 Pa; R = 8.3145 J/mol·K You have a thin metal sphere of unknown volume that contains helium gas at low pressure. You put the entire metal sphere into a bath of liquid nitrogen, and a pressure gauge on the sphere indicates a pressure of 288 torr...
*November 16, 2009 by Ellie*

**chemistry**

a student weighs out 37.0 grams worth of an unknown liquid into her graduated cylinder while preparing an experiment. Her formerly empty 100 mL graduated cylinder now contains exactly 25mL of liquid. She then adds 3.25 ml of H2O and according to her instructions the graduated ...
*June 24, 2014 by Anonymous*

**physics**

Compressing gases requires work and the resulting energy is usually converted to heat; if this heat does not escape, the gas's temperature will rise. This effect is used in diesel engines: The compressed air gets so hot that when the fuel is injected, it ignites without any ...
*November 8, 2010 by Ashleigh*

**Chemistry**

A student finds a medallion which could be made of pure platinium or silver. IN order to find out what the medallion is made of the student takes the medallion to a chemistry lab. The student measures the density of the medallion as follows. The medallion is placed on a ...
*October 12, 2009 by Kevin *

**Cylinder Height**

A cylinder has surface area of 402 cm2. The height is three times greater than the radius. What is the height of the cylinder?
*January 19, 2011 by Sydney*

**Chemistry**

A steel cylinder contains 128 grams of oxygen (O2) at 25*C and a pressure of 1000 torr. at STP 1 mol of a gas occupies 22.4 L. What is the volume in liters of the oxygen gas in the cylinder?
*May 12, 2010 by Dana*

**chemistry**

a 100 cm cube gas cylinder filled with chlorine under 160 torr pressure is connected by stop clock with another cylinder of 400 cm cube filled with nitrogen under pressure of200 torr. what will be total pressure when stop clock is opened?
*October 28, 2011 by afshan*

**chemistry**

a 100 cm cube gas cylinder filled with chlorine under 160 torr pressure is connected by stop clock with another cylinder of 400 cm cube filled with nitrogen under pressure of200 torr. what will be total pressure when stop clock is opened?
*October 28, 2011 by afshan*

**physics**

A long hollow non-conducting cylinder of radius 0.060 m and length 0.70 m carries a uniform charge per unit area of 4.0 C/m^2 on its surface. Beginning from rest, an externally applied torque causes the cylinder to rotate at constant acceleration of 40 rad/s^2 about the ...
*May 14, 2012 by Rams*

**physics**

A long hollow non-conducting cylinder of radius 0.060 m and length 0.70 m carries a uniform charge per unit area of 4.0 C/m^2 on its surface. Beginning from rest, an externally applied torque causes the cylinder to rotate at constant acceleration of 40 rad/s^2 about the ...
*May 20, 2012 by sand*

**Chemistry**

A cylinder of argon gas contains 125 mol at a pressure of 150 atm and a temperature of 27°C. After some of the argon has been used, the pressure is 136 atm at 27°C. What mass of argon remains in the cylinder? A) 4.23 × 103 g B) 113 g C) 5.52 × 103 g D) 4.52 × 103 g E) 5.00 × ...
*June 14, 2009 by Zandria*

**chem**

A balloon is filled with He to a pressure of 1.06 atm. The volume of the balloon at 25oC is 1.30 x 104 L. How many cylinders of He gas are needed to fill the balloon if the pressure in the cylinder at 20oC is 98.5 atm and the volume of the cylinder is 40.0 L. [You may have ...
*December 2, 2007 by Corey*

**Math**

The shorter edges of a 44cm x 25cm metal sheet are joined to form the curve surface of a cylinder. What is the volume of the cylinder? What is the area of metal sheet required to make the top and the bottom cylinder?
*August 15, 2012 by Theresa *

**math**

A paperweight containing liquid is made up of a cone and a cylinder. The radius of the cone is 3cm with height of 4cm. The diameter is 20cm and height is 8cm. 1. Calculate the total volume of the cone and cylinder when it si empty, leaving your answer in terms of pi. 2. If the...
*November 29, 2012 by Lindsay*

**Physics**

Suppose that we repeat the experiment shown in the video, but we replace one of the cylinders with a cylinder that has twice the radius (and use larger containers of water). If the height of the original cylinder is \rm h, how deeply must we submerge the new cylinder to get ...
*April 23, 2013 by H*

**College Physic**

I am stuck on this question. Any help will be greatly appreciated! A 0.082 kg solid cylinder with a radius of 1.90 cm, is placed at the top of a 30º inclined plane of height 29.5 cm. If the inclined plane is not frictionless, and the cylinder does roll, determine the speed of ...
*November 4, 2012 by Jennifer Hill*

**math**

This is the Crailsheim water tower in Baden-Württemberg, Germany. Its construction was completed in 1912. The base of the tower is a graduated cylinder about 19.2 m high with a diameter of 11.5 m at the base and 8.1 m at the top. a)The spherical tank holds 4.08 102 m3...
*October 10, 2012 by david*

**Physics**

A solid cylinder is mounted above the ground with its axis of rotation oriented horizontally. A rope is wound around the cylinder and its free end is attached to a block of mass 54.0 kg that rests on a platform. The cylinder has a mass of 265 kg and a radius of 0.430 m. Assume...
*April 10, 2014 by Gina*

**Chemistry**

A basketball is inflated in a garage at 25 degrees Celsius to a gauge pressure of 8.0 psi. Gauge pressure is the pressure above atmospheric pressure, which is 14.7 psi. The ball is used on the driveway at a temperature of -7 degrees celsius and feels flat. What is the actual ...
*December 28, 2006 by Alexandria*

**Geometry**

The ratio of the volume of Cylinder A to the volume of Cylinder B is 1:5. Cylinder A is similar to Cylinder C with a scale factor of 1:2 and Cylinder B is similar to Cylinder D with a scale factor of 1:3. What is the ratio of the volume of Cylinder C to the volume of Cylinder D?
*May 13, 2014 by Anonymous*

**Chemistry**

A 355.0 mL cylinder containing SO3 at a pressure of 0.700 atm is connected by a valve to 0.559 L cylinder containing COCl2 at 380.0 torr pressure. Calculate the partial pressure (atm) of SO3 when the valve is opened. Unit conversion K = C + 273 1 atm = 760 torr Molar Mass (g/...
*March 4, 2010 by Luc*

**Chemistry**

Answer check: I got 1.66 x 10^3 g O2 A steel cylinder contains 98.0 moles of oxygen gas at a temperature of 38 degrees C and a pressure of 740 torr. After some of the oxygen gas has been used, the pressure is reduced to 332 toor at a temperature of 24 degrees C. What mass of ...
*September 5, 2011 by Lola*

**Chemistry**

SHOW WORK A cylinder containing 48g of nitrogen gas at room temperature is placed on a scale. The valve is opened and 12g of gas are allowed to escape. Assuming that the temperature of the cylinder remains constant, how does the pressure change?
*December 4, 2013 by Caitlyn*

**Physics**

A massless string is wrapped around a cylinder of mass 0.400 kg and radius 0.100 m. The string is attached to the ceiling. The cylinder is released. As it falls, the string unwinds. What is the magnitude of the acceleration of the cylinder as it falls in m/s2? A.3.27 B.6.54 C....
*May 4, 2012 by Chris*

**physics- Electromagnetic waves**

A long hollow non-conducting cylinder of radius 0.060 m and length 0.70 m carries a uniform charge per unit area of 4.0 C/m^2 on its surface. Beginning from rest, an externally applied torque causes the cylinder to rotate at constant acceleration of 40 rad/s^2 about the ...
*May 9, 2012 by Rams*

**physics- Electromagnetic waves**

A long hollow non-conducting cylinder of radius 0.060 m and length 0.70 m carries a uniform charge per unit area of 4.0 C/m^2 on its surface. Beginning from rest, an externally applied torque causes the cylinder to rotate at constant acceleration of 40 rad/s^2 about the ...
*May 11, 2012 by Rams*

**Physics**

Many of you may have noticed the phenomenon that basketballs get flat if the weather is cold. If a basketball was inflated to a gauge pressure of 60,000 Pa when the temperature outside was 20∘C, what is the gauge pressure inside the basketball in Pa when the temperature ...
*May 30, 2013 by Mathslover*

**Physics**

A cylinder of oxygen has a gauge pressure of 2000psi and a volume of 16L at 70 degrees F. If the oxygen is used as a constant flow rate of 2 L/minute, measured at 1 atm of pressure, how long will the tank last? Hint: Calculate the mass (grams) of oxygen in the tank and the ...
*April 18, 2011 by Lindsey*

**Physics**

A cylinder of oxygen has a gauge pressure of 2000psi and a volume of 16L at 70 degrees F. If the oxygen is used as a constant flow rate of 2 L/minute, measured at 1 atm of pressure, how long will the tank last? Hint: Calculate the mass (grams) of oxygen in the tank and the ...
*April 19, 2011 by Lindsey*

**Physics**

A cylinder with a diameter of 16 rolls with an angular speed of 0.055 on a level surface. If the cylinder experiences a uniform tangential acceleration of 0.020 without slipping until its angular speed is 1.0 , through how many complete revolutions does the cylinder rotate ...
*June 18, 2013 by Anonymous*

**physics (please help elena)**

We will now examine how much time we need to stop a ship-engine-like cylinder. Suppose you take a rotating cylinder and let it roll to the right until it reaches a vertical wall. It then spins against the two walls as shown in the picture, slowly slowing down. How much time ...
*August 6, 2013 by Steven*

**Physics please check**

A cylinder is fitted with a piston, beneath which is a spring, as in the drawing. The cylinder is open at the top. Friction is absent. The spring constant of the spring is 4000 N/m. The piston has a negligible mass and a radius of 0.022 m. (a) When air beneath the piston is ...
*April 24, 2007 by Mary*

**chemistry**

Relationship between the pressure and volume of helium gas at a constant temperature of 298K. Volume was changed by moving a piston & following data was obtained: Vol (L) Pressure (atm) 5 10.229 10 4.749 15 3.198 20 2.381 30 1.665 50 0.98 75 0.655 100 0.47 1. what would be the...
*August 29, 2010 by Anonymous*

**Math. HELP!**

A cylinder is to be made of circular cross-section with a specified volume. Prove that if the surface area is to be a minimum, then the height of the cylinder must be equal to the diameter of the cross-section of the cylinder. Maybe it's the wording, but I have not been able ...
*November 17, 2010 by Thomas*

**Math**

A cylinder is to be made of circular cross-section with a specified volume. Prove that if the surface area is to be a minimum, then the height of the cylinder must be equal to the diameter of the cross-section of the cylinder. Maybe it's the wording, but I have not been able ...
*November 17, 2010 by Thomas*

**Math. HELP!**

A cylinder is to be made of circular cross-section with a specified volume. Prove that if the surface area is to be a minimum, then the height of the cylinder must be equal to the diameter of the cross-section of the cylinder. Maybe it's the wording, but I have not been able ...
*November 17, 2010 by Thomas*

**Math. HELP!**

A cylinder is to be made of circular cross-section with a specified volume. Prove that if the surface area is to be a minimum, then the height of the cylinder must be equal to the diameter of the cross-section of the cylinder. Maybe it's the wording, but I have not been able ...
*November 17, 2010 by Thomas*

**chem**

6.01-L cylinder contains 1.25 mol of gas A and 4.54 mol of gas B, at a temperature of 32.8 °C. Calculate the partial pressure of each gas in the cylinder. Assume ideal gas I have work this question three time and can not get the rt answer
*December 1, 2013 by dinah*

**chem**

6.01-L cylinder contains 1.25 mol of gas A and 4.54 mol of gas B, at a temperature of 32.8 °C. Calculate the partial pressure of each gas in the cylinder. Assume ideal gas I have work this question three time and can not get the rt answer
*December 1, 2013 by dinah*

**physical**

A solid cylinder has a radius of 0.051 m and a height of 0.0030. The cylinder is composed of two different materials with mass densites of 1950 kg/m3. If each of the two materials occupies an equal volume, what is the mass of the cylinder?
*May 10, 2013 by Janaiby*

**physics**

A cylinder of volume 2.3 L contains CO2 gas at 2.2 atm. A piston is pushed into the cylinder to decrease the volume to 1.2 L with no temperature change. What is the new pressure of the gas in atm? im completely stuck on how to start this.
*February 8, 2012 by mariah*

**Probabilities**

Company has 90 cars in stock with 4 cylinder engines and 290 with 6 cylinder engines. There are no other cars in stock. 130 of these cars, including 20 of those with 4 cylinder engines have air conditioning. One car on the lot is selected at random. The probability that this ...
*April 21, 2009 by Andrey L*

**Physics**

Use Bernoulli's equation to determine the velocity with which water will exit from a hole in a uniform cylinder when the cylinder is filled to a point 3.1 meters above the hole, assuming that the water in the cylinder moves with negligible velocity.
*April 6, 2010 by Plaster*

**Physic Help**

Charge is distributed through an infinitely long cylinder of radius R in such a way that the charge density is proportional to the distance from the central axis: ß = A r, where A is a constant and ß is the density. (a) Calculate the total charge contained in a segment of the ...
*February 18, 2013 by Lindsey*

**physcs**

A string is wrapped around a uniform solid cylinder of radius 3.10 cm, as shown in the figure. The cylinder can rotate freely about its axis. The loose end of the string is attached to a block. The block has mass 16.3 kg, and the cylinder has mass 11.2 kg.
*November 30, 2009 by asefa*

**Chemistry**

A basketball is inflated in a garage at 25 degrees C to a gauge pressure of 8.0 psi. Gauge pressure is the pressure above atmospheric pressure, which is 14.7 psi. The ball is used on the driveway at a temperature of -7 degrees C and feels flat. What is the actual pressure of ...
*January 4, 2007 by Cuzzy*

**Physics HELP!!!!!!!!**

Suppose a monatomic ideal gas is contained within a vertical cylinder that is fitted with a movable piston. The piston is frictionless and has a negligible mass. The area of the piston is 3.06 10-2 m2, and the pressure outside the cylinder is 1.02 105 Pa. Heat (2109 J) is ...
*April 21, 2007 by Mary*

**Physics**

A solid cylinder (radius = 0.150 m, height = 0.120 m) has a mass of 7.00 kg. This cylinder is floating in water. Then oil ( = 725 kg/m3) is poured on top of the water until the situation shown in the drawing results. How much of the height of the cylinder is in the oil?
*November 6, 2007 by mark*

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