Monday

June 27, 2016
Number of results: 11,710

**Chemistry**

A 71.0 L cylinder containing CH2O at a pressure of 0.550 atm is connected by a valve to 1.50 L cylinder containing N2 at 266.0 torr pressure. Calculate the partial pressure (atm) of N2 when the valve is opened.
*January 20, 2010 by Bob*

**science**

A 3.70 L sample of neon at 11.24 atm is added to a 10.0 L cylinder that contains argon. If the pressure in the cylinder is 5.24 atm after the neon is added, what was the original pressure (in atm) of argon in the cylinder?
*October 8, 2014 by john*

**Physics**

A 20-cm-diameter cylinder that is 40 cm long contains 50 g of oxygen gas at 20C. What is the number density of the oxygen? in m^-3 What is the reading of a pressure gauge attached to the tank? in kPa
*April 25, 2012 by Mark*

**pressure**

a 6.04L cylinder contains 1.71mol of gas A and 4.35 mol of gas B, at a temperature of 33.1C. calculate the partial pressure of each gas in the cylinder. assume ideal gas behavior.
*September 18, 2013 by Anonymous*

**phy**

An emphysema patient is breathing pure O2 through a face mask. The cylinder of O2 contains 0.20 ft3 of O2 gas at a pressure of 2200 lb/in2. (a) What volume would the oxygen occupy at atmospheric pressure (and the same temperature)? ft3 (b) If the patient takes in 8.0 L/min of ...
*April 13, 2013 by kira*

**phy**

An emphysema patient is breathing pure O2 through a face mask. The cylinder of O2 contains 0.20 ft3 of O2 gas at a pressure of 2200 lb/in2. (a) What volume would the oxygen occupy at atmospheric pressure (and the same temperature)? ft3 (b) If the patient takes in 8.0 L/min of ...
*April 13, 2013 by kira*

**Chemistry**

You have a 100mL cylinder containing 40mL of water. A cube measures 2cm on each side is lowered into the cylinder. What is the new volume reading of the cylinder?
*February 2, 2013 by Terra*

**pre algebra**

A cylinder has a circumference of 16pi inches and its height is half the radius of the cylinder? What is the total surface area of the cylinder? Give answer in terms of pi. do not know how to do this....please help
*September 28, 2014 by taylor*

**Physics**

A solid cylinder of mass 20 kg rotates about its axis with angular speed of 100 rad/sec. the radius of the cylinder is 0.25m. what is the kinetic energy of the cylinder?
*December 5, 2014 by Devnet*

**Mat 116/algebra**

A cylinder has a radius of 5 in. If the volume of the cylinder is 250 ¦Ðr¡¼in¡½^3, what is the height of the cylinder? Volume cylinder is AreaBase*height where area of the base is PI*r^2 Volume=PI*r^2 * h solve for h.
*May 13, 2007 by Dee*

**chemistry**

a 2.50mL sample of dry air in a cylinder exerts a pressure of3.00atm at room temperature. without changing the temperature, a piston is moved until the pressure in the cylinder is reduced to 1.00atm. what is the final volume of the gas?
*March 11, 2013 by jm*

**chemistry**

a 2.50mL sample of dry air in a cylinder exerts a pressure of3.00atm at room temperature. without changing the temperature, a piston is moved until the pressure in the cylinder is reduced to 1.00atm. what is the final volume of the gas?
*March 11, 2013 by jm*

**Math - Please Help**

The surface area of a right circular cylinder is 1200 cm^2 . If the height of the cylinder is twice its diameter, find the dimensionsof the cylinder. I know th formula for SA is SA = 2pir^2 + 2pirh I know h = 2d. I know r = 1/2 d What is h in relations to r? Is is 4r?
*February 18, 2013 by Barb*

**math GR.8!!!**

A cylinder has two circular ends, each with an area of 1256 c,. The height if the cylinder us 60 cm. what is the surface are of the cylinder? plz explain the formula and all the steps towards how u got the answer... thank u!!!
*December 10, 2013 by .Ms.Sue!!!! plz help*

**chemistry help ASAP**

a graduated cylinder contains 20.0 ml of water. when 100.g of a brass cylinder were added to the graduated cylinder, the water level rose to 32.6 ml. given this information what is the density of the brass cylinder?
*September 26, 2011 by elizabeth*

**physics**

Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering the ...
*October 23, 2008 by tom*

**physics**

Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering the ...
*October 23, 2008 by tom*

**physics**

Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering the ...
*October 23, 2008 by tom*

**physics**

Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering the ...
*October 23, 2008 by tom*

**chemistry**

i have two questions. 1. generally speaking, if the pressure of a gas is tripled, what will happen to its volume? 2. If I take 2000L of gas at STP and squish it into a gas 15.0L gas cylinder, what will be the pressure inside the cylinder, assuming the temperature is kept ...
*May 21, 2011 by me*

**Maths help**

Hi MY question is if a cylinder has a volume of 72cm cubed and a cross-sectional area of 18cm squared. Work out the height of the cylinder Can someone show me how we do it by the steps The cross-section of a cylinder is a circle. so pi(r)^2=18 solve for r let the height be h ...
*April 23, 2007 by Ali*

**Geometry**

Two cylinders have the same volume. If the radius of cylinder I is 3 times the radius of cylinder II, then the height of cylinder II is how many times the height of cylinder I? A. 12 B. 9 C. 6 D. 3 Please explain how, if possible.
*December 29, 2012 by Samantha*

**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 Goyle*

**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 hydraulic cylinder has to overcome a force of 12,600 pounds on the extend stroke and 9,375 pounds on the return stroke. The maximum system pressure available is 2200 PSIG. What is the smallest diameter cylinder required to overcome the load and what is the maximum diameter ...
*April 1, 2015 by emma*

**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*

**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*

**CHEM**

A 2.50 L sample of neon gas at 0.00 C and 1.00 ATM is compressed into a 1.00 L cylinder. what pressure will the gas exert in the cylinder at 25.0 C?
*March 9, 2015 by Dianne*

**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*

**Geometry**

Cylinder A has a radius of 1m nad a height of 3m. Cylinder B has a rauis of height 3m. What is the ratio of the volume of cylinder A to the volume of cylinder B?
*May 18, 2016 by Katelynn*

**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 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*

**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*

**math**

Inside a long empty cylinder with radius R = 25 cm is put a long solid cylinder with radius r = 10 cm such that the bases of the two cylinders are attached. Then water is poured in the remaining empty region of the first cylinder until the height of the water becomes 30 cm (...
*February 22, 2015 by emy*

**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 air in a cylinder of a diesel engine occupies 1.00 L at 30 degrees celsius and 1.00 atm. What is the pressure in the cylinder when the air is compressed to 0.0714 L (14:1 compression ratio) and heats to 480 degrees celsius? When the fuel explodes in the compression chamber...
*May 22, 2016 by Eve*

**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*

**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*

**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 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*

**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*

**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*

**Algebra **

the base of a cylinder is a right triangle topped by a 60 degrees sector of a circle, as shown. if the dimensions are in meters and the height of the cylinder is 8 meters, what is the volume of the cylinder?
*September 18, 2015 by Lana*

**Algebra 1 Honors**

The volume of a cylinder is 157 cubic inches. The base of the cylinder has a diameter of 5 inches. What is the height of the cylinder? Round to the nearest tenth of an inch.
*November 25, 2015 by Anonymous *

**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**

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*

**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*

**chemisty**

A cylinder with a moving piston expands from an initial volume of 0.350L against an external pressure of 2.70atm . The expansion does 251J of work on the surroundings. What is the final volume of the cylinder?
*April 20, 2015 by samantha *

**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*

**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 *

**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*

**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*

**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*

**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*

**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*

**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*

**Science**

a steel cylinder of oxygen with a volume of 15 L was available for medical purposes. The cylinder pressure decrease from 40.6 to 38.5 atm during which time the temperature remain at 24.0 °C how many moles of oxygen had been removed
*December 18, 2015 by Hiba *

**physics**

A copper (Young's modulus 1.1 x 1011 N/m2) cylinder and a brass (Young's modulus 9.0 x 1010 N/m2) cylinder are stacked end to end, as in the drawing. Each cylinder has a radius of 0.14 cm. A compressive force of F = 4800 N is applied to the right end of the brass cylinder. ...
*October 26, 2014 by Anonymous*

**physics **

A copper (Young's modulus 1.1 x 1011 N/m2) cylinder and a brass (Young's modulus 9.0 x 1010 N/m2) cylinder are stacked end to end, as in the drawing. Each cylinder has a radius of 0.38 cm. A compressive force of F = 6100 N is applied to the right end of the brass cylinder. ...
*November 12, 2014 by S*

**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*

**Math- word prolems**

Making a cylinder is costing your company $2/in^2 for top and bottom and $6/in^2 for the body(side). If the cylinder is to have 166.25oz volume, what are the most economical cylinder that you can make and what will be the cost of making it.
*October 25, 2015 by Sam*

**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*

**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*

**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*

**physics**

The pressure gauge on a tank registers the gauge pressure, which is the difference between the interior pressure and exterior pressure. When the tank is full of oxygen (O2), it contains 10.0 kg of the gas at a gauge pressure of 43.0 atm. Determine the mass of oxygen that has ...
*December 13, 2014 by shawn*

**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*

**physics**

A 2.1-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 18 N. (a) Find the magnitude of the torque exerted by the rope. N · m (b) Find the angular ...
*January 22, 2015 by Johnathan*

**Physics**

A 2.1-kg 15-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 14 N. (a) Find the magnitude of the torque exerted by the rope. ?N · m (b) Find the angular ...
*July 21, 2015 by Anonymous*

**Science chemistry **

a steel cylinder of oxygen with a volume of 15 L was available for medical purposes. The cylinder pressure decrease from 40.6 to 38.5 atm during which time the temperature remain at 24.0 °C how many moles of oxygen had been removed
*December 18, 2015 by Hiba *

**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*

**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 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!!!*

**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*

**Algebra 2**

Am I correct? The radius of a cylinder is 3x – 2 cm. The height of the cylinder is x + 3 cm. What is the surface area of the cylinder? Use the formula A = 2pi r2 + 2 pi rh. 2spi (3x2 + 10x – 8) 2 pi (12x2 + 7x-2) 2 pi (12x2 -2x +13) my answer 2 pi (12x2 -5x -2)
*September 25, 2014 by Sandra*

**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*

**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*

**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*

**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*

**Algebra II**

4. The radius of a cylinder is 3x – 2 cm. The height of the cylinder is x + 3 cm. What is the surface area of the cylinder? 2spi (3x2 + 10x – 8) 2 pi (12x2 + 7x-2) 2 pi (12x2 -2x +13) 2 pi (12x2 -5x -2)* my answer??
*September 29, 2014 by Sandra*

**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 *

**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*

**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*

**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*