Monday

April 21, 2014

April 21, 2014

Number of results: 1,195

**Physics**

The flywheel of an old steam engine is a solid homogeneous metal disk of mass M = 114 kgand radius R = 80 cm.The engine rotates the wheel at 540 rpm. In an emergency, to bring the engine to a stop, the flywheel is disengaged from the engine and a brake pad is applied at the ...
*Sunday, October 24, 2010 at 10:29pm by Donny*

**Physics**

The flywheel of an old steam engine is a solid homogeneous metal disk of mass M = 120 kg and radius R = 80 cm. The engine rotates the wheel at 500 rpm. In an emergency, to bring the engine to a stop, the flywheel is disengaged from the engine and a brake pad is applied at the ...
*Tuesday, October 18, 2011 at 7:12pm by Temi*

**Hard Physics Problem**

The flywheel of an old steam engine is a solid homogeneous metal disk of mass M = 131 kgand radius R = 80 cm.The engine rotates the wheel at 580 rpm. In an emergency, to bring the engine to a stop, the flywheel is disengaged from the engine and a brake pad is applied at the ...
*Monday, October 25, 2010 at 8:21pm by Donny*

**physics**

The flywheel of a steam engine runs with a constant angular velocity of 220 rev/min. When steam is shut off, the friction of the bearings and of the air stops the wheel in 2.7 h. (a) What is the constant angular acceleration, in revolutions per minute-squared, of the wheel ...
*Wednesday, March 5, 2008 at 11:08am by greg*

**PHYSICS!!!**

The flywheel of a steam engine runs with a constant angular velocity of 220 rev/min. When steam is shut off, the friction of the bearings and of the air stops the wheel in 2.7 h. (a) What is the constant angular acceleration, in revolutions per minute-squared, of the wheel ...
*Wednesday, March 5, 2008 at 8:05pm by greg*

**physics**

The flywheel of a steam engine runs with a constant angular speed of 164 rev/min. When steam is shut off, the friction of the bearings and the air brings the wheel to rest in 1.6 h. I figured out the constant angular acceleration=1.71 rev/min2 but im not sure how to find:What ...
*Monday, September 27, 2010 at 7:26pm by help*

**physics**

The flywheel of a steam engine runs with a constant angular speed of 164 rev/min. When steam is shut off, the friction of the bearings and the air brings the wheel to rest in 1.6 h. I found the constant angular acceleration as 1.71rev/min^2. They also ask you to find What is ...
*Tuesday, September 28, 2010 at 12:44pm by help*

**kinetics**

An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its moment of inertia is 0.156 kg m2 about its axis of rotation a) calculate the mass of the flywheel b) calculate the flywheel's radius of gyration c) whilst...
*Thursday, March 8, 2012 at 5:41pm by dmkp*

**kinetics**

An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its moment of inertia is 0.156 kg m2 about its axis of rotation a) calculate the mass of the flywheel b) calculate the flywheel's radius of gyration c) whilst...
*Friday, March 16, 2012 at 6:16am by dmkp*

**kinetics**

An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its moment of inertia is 0.156 kg m2 about its axis of rotation a) calculate the mass of the flywheel b) calculate the flywheel's radius of gyration c) whilst...
*Wednesday, March 28, 2012 at 12:52pm by dmkp*

**kinetics**

An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its moment of inertia is 0.156 kg m2 about its axis of rotation a) calculate the mass of the flywheel b) calculate the flywheel's radius of gyration c) whilst...
*Friday, March 30, 2012 at 6:34pm by dmkp*

**kinematics**

An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its moment of inertia is 0.156 kg m2 about its axis of rotation a) calculate the mass of the flywheel b) calculate the flywheel's radius of gyration c) whilst...
*Wednesday, May 30, 2012 at 7:45am by dmkp*

**engineering mechanics**

An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its moment of inertia is 0.156 kg m2 about its axis of rotation a) calculate the mass of the flywheel b) calculate the flywheel's radius of gyration c) whilst...
*Wednesday, April 4, 2012 at 2:26pm by dmkp*

**engineering mechanics**

An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its moment of inertia is 0.156 kg m2 about its axis of rotation a) calculate the mass of the flywheel b) calculate the flywheel's radius of gyration c) whilst...
*Thursday, April 5, 2012 at 6:16am by dmkp*

**Physics**

The flywheel of a steam engine runs with a constant angular speed of 321 rev/min (in the counterclockwise direction). When steam is shut off, the friction of the bearings stops the wheel in 1.9 h. (a) What is the constant angular acceleration, in revolutions per minute-squared...
*Tuesday, July 27, 2010 at 11:54am by Anna*

**physics**

The flywheel of a steam engine runs with a constant angular speed of 250 rev/min. When steam is shut off, the friction of the bearings stops the wheel in 2.1 h. At the instant the flywheel is turning at 75 rev/min, what is the tangential component of the linear acceleration of...
*Monday, March 12, 2007 at 1:57am by winterWX*

**college physics**

The flywheel of a steam engine runs with a constant angular speed of 165 rev/min. When steam is shut off, the friction of the bearings and of the air brings the wheel to rest in 2.30 hrs (a) What is the constant angular acceleration of the wheel, in rev/min2 ? (b) How many ...
*Tuesday, June 8, 2010 at 10:15pm by Bami*

**physics**

A car is designed to get its energy from a rotating flywheel with a radius of 1.50 m and a mass of 600 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4000 rev/min. (a) Find the kinetic energy stored in the ...
*Wednesday, March 17, 2010 at 3:43pm by mike*

**Physics **

The flywheel of a steam engine runs with a constant angular speed of 112 rev/ min . When steam is shut off, the friction of the bearings and the air brings the wheel to rest in 2.2 h. What is the magnitude of the constant angular acceleration of the wheel in rev/min^2? Do not ...
*Wednesday, April 2, 2014 at 1:42pm by Ted*

**physics**

A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.00 m and a mass of 600 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4,000 rev/min. (a) Find the kinetic energy ...
*Friday, November 30, 2012 at 3:19pm by monic*

**physics**

A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.00 m and a mass of 600 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4,000 rev/min. (a) Find the kinetic energy ...
*Sunday, December 2, 2012 at 8:27pm by heather*

**physics**

hi,need help please.thank. A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 2.00 m and a mass of 525 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4000 rev/min. (a...
*Sunday, November 22, 2009 at 6:31pm by Chan*

**Physics***

A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.00 m and a mass of 575 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 5,000 rev/min. (a) Find the kinetic energy ...
*Thursday, October 20, 2011 at 12:39pm by Allie*

**Physics Rotaional Kinetic Energy**

A car is designed to get its energy from a rotating flywheel with a radius of 1.50 m and a mass of 600 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4000 rev/min. (a) Find the kinetic energy stored in the ...
*Wednesday, March 17, 2010 at 4:18pm by Anonymous*

**physics**

Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 120 ð rad/s. One such flywheel is a solid, uniform cylinder with a mass of 270 kg and a radius of 1.10 m. (a) What is the kinetic energy of the ...
*Thursday, February 24, 2011 at 9:58am by jr*

**Physics**

A flywheel accelerates from rest to an angular velocity of 10.44rad/s at an angular acceleration of 51.57rad/s^2. The diameter of the flywheel is 1.16m. At this instant, calculate the resultant linear acceleration, in m/s^2, of a point on the circumference of the flywheel.
*Wednesday, April 18, 2012 at 8:39am by Anonymous*

**physics**

Flywheels are large massive wheels (disks) used to store energy. They can be spun up slowly, and then the wheel’s energy can be released quickly to accomplish a task that demands high power. A large flywheel has a 2.4 m diameter and a mass of 300 kg. Its maximum angular ...
*Sunday, December 11, 2011 at 9:59pm by Anonymous*

**physics**

http://www.jiskha.com/search/index.cgi?query=+The+flywheel+of+a+steam+engine+runs+with+a+constant+angular+speed+of+164+rev%2Fmin.+When+steam+is+shut+off%2C+the+friction+of+the+bearings+and+the+air+brings+the+wheel+to+rest+in+1.6+h.+I+found+the+constant+angular+acceleration+as+...
*Tuesday, September 28, 2010 at 12:44pm by bobpursley*

**physic**

In an experiment, a mass m = 40 gm, attached to a string wrapped around the axle of a flywheel and starting from rest, falls through a distance of 147 cm in 3.5 seconds. The diameter of the axle of the flywheel is 12 cm What is the acceleration of the mass and the angular ...
*Thursday, March 22, 2012 at 1:43pm by ashley*

**physics**

You set out to design a car that uses the energy stored in a flywheel consisting of a uniform 97-kg cylinder of radius R that has a maximum angular speed of 330 rev/s. The flywheel must deliver an average of 1.70 MJ of energy for each kilometer of distance. Find the smallest ...
*Wednesday, November 7, 2012 at 9:35pm by Jack*

**Physics**

In a city with an air-pollution problem, a bus has no combustion engine. It runs on energy drawn from a large, rapidly rotating flywheel under the floor of the bus. The flywheel is spun up to its maximum rotation rate of 5150 rev/min by an electric motor at the bus terminal. ...
*Sunday, March 13, 2011 at 5:48pm by Brent*

**physics**

A 90kg stuntman falls from a building that is 80 meters tall. (Vo = 0) Fortunately, the stuntman is attached to a cable that is wrapped around a flywheel (massive spool), with a radius of 0.5m. If the man takes 8 seconds to reach the ground, (a) what is the moment of inertia ...
*Thursday, March 7, 2013 at 7:34pm by Sam*

**Physics**

A 90kg stuntman falls from a building that is 80 meters tall. (Vo = 0)Fortunately, the stuntman is attached to a cable that is wrapped around a flywheel (massive spool), with a radius of 0.5m. If the man takes 8 seconds to reach the ground: (a) what is the moment of inertia of...
*Thursday, March 7, 2013 at 8:13pm by Sam*

**physics**

To drive a typical car at 40 mph on a level road for one hour requires about 3.2 × 10^7 J of energy. Suppose one tried to store this much energy in a spinning solid cylindrical flywheel which was then coupled to the wheels of the car. A large flywheel cannot be spun too fast ...
*Friday, November 16, 2012 at 9:12pm by terry*

**physics**

The flywheel of a steam engine runs with a constant angular speed of 164 rev/min. When steam is shut off, the friction of the bearings and the air brings the wheel to rest in 1.6 h. I figured out the constant angular acceleration=1.71 rev/min2 but im not sure how to find:What ...
*Tuesday, September 28, 2010 at 10:43pm by question*

**physics - drwls?**

The flywheel of a steam engine runs with a constant angular speed of 250 rev/min. When steam is shut off, the friction of the bearings stops the wheel in 2.1 h. At the instant the flywheel is turning at 75 rev/min, what is the tangential component of the linear acceleration of...
*Tuesday, March 13, 2007 at 12:52am by winterWX*

**College Physics**

An electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel as shown in the figure below. The flywheel is a solid disk with a mass of 55.5 kg and a radius R = 0.625 m. It turns on a frictionless...
*Sunday, October 17, 2010 at 5:31pm by Jared*

**Desperate need of Help for Physics.**

Moment of inertia of a flywheel disk question: Do you think the calculated moment of inertia is larger or smaller than the "true" moment of inertial of the actual disk? question: calculate the percent difference between the static and the dynamic moment. I got .0195kgm^2 for ...
*Wednesday, November 15, 2006 at 11:15am by Teesha*

**Physics**

Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel's energy can be released quickly to accomplish a task that demands high power. An industrial flywheel has a 1.5 m diameter and a mass of 250 kg. Its maximum angular velocity is...
*Saturday, July 23, 2011 at 5:45pm by falcon306*

**physic**

hi,need help please.thank. A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 2.00 m and a mass of 525 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4000 rev/min. (a...
*Sunday, November 22, 2009 at 10:21pm by Chan*

**physics**

The flywheel of a motor is connected to the flywheel of an electric generator by a drive belt. The flywheels are of equal size each of radius . While the flywheels are rotating the tension in the upper and lower portions of the drive belt are and respectively. The drive belt ...
*Thursday, December 5, 2013 at 10:09am by Greco*

**Chemistry**

q = mass steam x specific heat steam x (120-100). q = 500 x (look up sp.h. steam) x (20) = ??
*Saturday, October 6, 2007 at 10:12pm by DrBob222*

**physics**

A car has a flywheel ( a diks of R=0.2m and uniformly distributed mass M=100kg) that can convert 25% of the rotational kinetic energy into translational kinetic energy. The mass of the car is 1000kg ( including flywheel). Suppose the car is at rest, and the flywheel has a ...
*Monday, December 30, 2013 at 4:57pm by Al*

**Physics**

The flywheel of a steam engine begins to rotate from rest with a constant angular acceleration of 1.39 rad/s^2. It accelerates for 30.3 s, then maintains a constant angular velocity. Calculate the total angle through which the wheel has turned 69.1 s after it begins rotating.
*Sunday, September 30, 2012 at 4:56pm by Arthur*

**Socials: invention**

what inventions came before the steam engine? (prototype) I have researched about the steam engine by James Watt and I know that before the steam engine there was a steam pump that was invented by Thomas Newcomen, but I need more info than this. Please help, thanks...
*Friday, February 15, 2013 at 7:38pm by Tess*

**physics**

The flywheel of a steam engine begins to rotate from rest with a constant angular acceleration of 1.41 rad/s2. It accelerates for 25.5 s, then maintains a constant angular velocity. Calculate the total angle through which the wheel has turned 65.5 s after it begins rotating.
*Friday, February 10, 2012 at 11:46am by qwertzuiop*

**physics**

The flywheel of a steam engine begins to rotate from rest with a constant angular acceleration of 1.45 rad/s2. It accelerates for 29.5 s, then maintains a constant angular velocity. Calculate the total angle through which the wheel has turned 63.7 s after it begins rotating.
*Sunday, September 22, 2013 at 1:57pm by Sue*

**physics**

A flywheel with an axle 1.0cm in diameter is mounted in frictionless bearings and set in motion by applying a steady tension of 2N to a thin thread wound tightly round the axle. The moment of inertia of the system about its axis of rotation is 5.0 x 10^-4 kgm^-2. Calculate (a...
*Friday, March 26, 2010 at 11:01am by Edwin*

**Physics**

A flywheel with a diameter of 2.45 m is rotating at an angular speed of 74.1 rev/min. (a) What is the angular speed of the flywheel in radians per second? (b) What is the linear speed of a point on the rim of the flywheel? (c) What constant angular acceleration (in revolutions...
*Wednesday, November 9, 2011 at 8:51am by kyle*

**Thermodynamics**

a rigid vessel of volume 1m(^3) contains steam at 20bar and 400 degrees Celcius. The vessel is cooled until the steam is just dry saturated. Calculate the mass of steam in the vessel, the final pressure of the steam and the heat rejected during the process. The answers should ...
*Friday, March 12, 2010 at 3:30am by Claire*

**physics**

A steam engine’s boiler completely converts 151 kg of water to steam. This process in- volves the transfer of 4.8786 J J as heat. If steam escaping through a safety valve does 1.66 × 108 J of work expanding against the outside atmosphere, what is the net change in the internal...
*Tuesday, February 19, 2013 at 8:53pm by scott*

**Physics**

In the design of a passenger bus, it is proposed to derive the motive power from the energy stored in a flywheel. The flywheel, which has a moment of inertia of 4.0 x 102 kgm2, is accelerated to its maximum rate of rotation of 3.0 x 103 revolutions per minute by electric ...
*Saturday, April 2, 2011 at 10:31pm by Vertrex*

**physic**

hi,need help please.thank. A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 2.00 m and a mass of 525 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4000 rev/min. (a...
*Monday, November 23, 2009 at 3:07am by Chan*

**physical science**

To convert steam at 100 to steam at 110, it is q = mass steam x specific heat steam x (Tfinal-Tinitial) = ?? To convert WATER at 100 C to steam at 100 C it is q = mass H2O x heat vaporization of H2O.
*Tuesday, July 5, 2011 at 11:03pm by DrBob222*

**Thermodynamics**

A combined seperating and throttling calorimeter was used to determined the dryness fraction of steam flowing through a steam main at a pressure of 900kPa. The pressure and temperature after throttling were 100kPa and 110C respectively. The mass of water collected in the ...
*Tuesday, December 7, 2010 at 6:15am by Kay*

**physics**

In the design of a passenger bus, it is proposed to derive the motive power from the energy stored in a flywheel. The flywheel, which has a moment of inertia of 4.0 x 10^2 kgm^2, is accelerated to its maximum rate of rotation 3.0 x 10^3 revolutions per minute by electric ...
*Saturday, March 27, 2010 at 10:45am by Edwin*

**Physics**

1. The total enthalpy of 15.000kg of steam at 2250.000kPa is 34191.510kJ. Determine the dryness of the steam. ANS = % Not sure where to start. I need a little help please. I do have a chart with the properties of saturated steam. Thank you.
*Saturday, July 13, 2013 at 1:25pm by Danny*

**Thermodynamics**

1. The total enthalpy of 15.000kg of steam at 2250.000kPa is 34191.510kJ. Determine the dryness of the steam. ANS = % Not sure where to start. I need a little help please. I do have a chart with the properties of saturated steam. Thank you.
*Saturday, July 13, 2013 at 11:35pm by Danny*

**physics**

An experimental flywheel, used to store energy and replace an automobile engine, is a solid disk of mass 202.0 kg and radius 0.35 m. (a) What is its rotational inertia? (b) When driving at 22.4 m/s (50 mph), the fully energized flywheel is rotating at an angular speed of 3160 ...
*Thursday, March 22, 2012 at 3:26pm by opp*

**Physics**

A flywheel of a radius .5 m starts from rest and under goes a uniform angular acceleration of 3 rad/sec2 for a period of 5 seconds. Find the angular velocity of the flywheel at the end of this time? Find the angular displacement (in radians) that the wheel turns through during...
*Wednesday, May 9, 2012 at 1:19am by Mary*

**physics**

A flywheel has a small magnet mounted on it. EAch time the magnet passes the coil, a voltage pulse is generated, which is passed to the c.r.o. The display of the c.r.o. is 10cm wide. The flywheel is rotating at a rate of about 3000 revolutions per minute.Why will the time base...
*Thursday, January 30, 2014 at 7:01am by Saraf*

**thermodynamic**

A rigid vessel of 1m^3 contains steam at 20 bar and 400 degree C. the vessel is cooled until the steam is just dry saturated. Calculate the mass of steam in the vessel.
*Sunday, July 17, 2011 at 3:43pm by Amber*

**candle**

The flywheel of a prototype car engine is under test. The angular position θ of the flywheel is given by θ = (3.0rad/s3)t3 and the diameter of the flywheel is 36cm. (a)Find the distance that a particle on the rim moves during that time interval. (b) Find the angle &#...
*Friday, November 4, 2011 at 7:59am by ahmed*

**Physics**

A steam engine's boiler completely converts 155 kg of water to steam. This process involves the transfer of 3.5 x 10^8 J by heat. If steam escaping a safety valve does 1.76 x 10^8 J of work against the outside atmosphere, what is the net internal energy of the water-steam ...
*Wednesday, March 26, 2008 at 6:23pm by Lindsay*

**physics**

A flywheel of moment of inertia 0.32 kgm^2 is rotated steadily at 120rad/s by a 50 W electric motor. (i)find the kinetic energy and angular momentum of the flywheel. (ii) calculate the value of frictional couple opposing the rotation. (iii)find the time taken for the wheel to...
*Friday, March 26, 2010 at 2:33pm by Edwin*

**PHYSICS**

A flywheel in the form of a heavy circular disk of diameter 0.83 m and mass 111 kg is mounted on a frictionless bearing. A motor connected to the flywheel accelerates it from rest to 1430 rev/min. a)What is the moment of inertia of the fly- wheel? Answer in units of kg · m2 b...
*Friday, October 21, 2011 at 11:37pm by PHYSICS HELP!!!!!!!!!!!!!!!!*

**Physics (torque, if possible)**

An electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel. The flywheel is a solid disk with a mass of 80.0kg and a dimaeter of 1.25m. It turns on a frictionless axle. Its pulley has much ...
*Wednesday, April 18, 2007 at 6:58pm by Anderson*

**Chemistry**

[350g H2O x specific heat H2O x (70-25)]+[mass steam x (heat vap)] + [mass H2O from steam x specific heat H2O x (70-100)] = 0 Solve for x = mass steam The only unknown in that equation is mass steam and mass H2O from steam. I would let them = y and plug in the other numbers ...
*Friday, April 18, 2014 at 9:23pm by DrBob222*

**Physics**

How do i determine the rise in temperature when the passage of steam is continued until a further 15g of steam has condensed and the mixture is in thermal equilibrium when dry saturated steam at 100 degrees C is passed into 25g of a mixture of ice and water contained in a ...
*Friday, March 9, 2012 at 6:38pm by Kingsley*

**Chemistry**

q1 = heat released in cooling steam from 111 to steam at 100 C. q1 = mass steam x specific heat steam x (Tfinal-Tinitial) (Note: Tf = 100- and Ti = 111. q2= heat released in condensing steam at 100 C to liquid water at 100 C. q2 = mass x heat vaporization. Total Q = q1 + q2.
*Thursday, January 26, 2012 at 6:00pm by DrBob222*

**Thermodynamics of steam**

A boiler furnace releases 10000.000kJ of heat for each kg of fuel burned and produces dry saturated steam at 10000.000kPa from feed water at 190.000 degrees Celsius. How many kg of steam will be produced for each kg of fuel burned if the boiler had an efficiency of 69%. ANS = ...
*Monday, July 22, 2013 at 9:07pm by Danny*

**Thermodynamics **

1. The total enthalpy of 15.000kg of steam at 2250.000kPa is 34191.510kJ. Determine the dryness of the steam. ANS = % 2. Determine the quantity of heat required, to raise 11.100kg of water at 80.000 degrees Celsius, to saturated steam at 2250.000kPa and 71.400% dry. ANS = kJ ...
*Thursday, July 11, 2013 at 9:02pm by Danny*

**Thermodynamics**

1. The total enthalpy of 15.000kg of steam at 2250.000kPa is 34191.510kJ. Determine the dryness of the steam. ANS = % 2. Determine the quantity of heat required, to raise 11.100kg of water at 80.000 degrees Celsius, to saturated steam at 2250.000kPa and 71.400% dry. ANS = kJ ...
*Friday, July 12, 2013 at 11:15pm by Danny*

**Thermodynamics**

1. The total enthalpy of 15.000kg of steam at 2250.000kPa is 34191.510kJ. Determine the dryness of the steam. ANS = % 2. Determine the quantity of heat required, to raise 11.100kg of water at 80.000 degrees Celsius, to saturated steam at 2250.000kPa and 71.400% dry. ANS = kJ ...
*Saturday, July 13, 2013 at 9:42am by Danny*

**Physics (Help)**

1. The total enthalpy of 15.000kg of steam at 2250.000kPa is 34191.510kJ. Determine the dryness of the steam. ANS = % 2. Determine the quantity of heat required, to raise 11.100kg of water at 80.000 degrees Celsius, to saturated steam at 2250.000kPa and 71.400% dry. ANS = kJ ...
*Sunday, July 14, 2013 at 1:15pm by Danny*

**Physics Help**

1. The total enthalpy of 15.000kg of steam at 2250.000kPa is 34191.510kJ. Determine the dryness of the steam. ANS = % 2. Determine the quantity of heat required, to raise 11.100kg of water at 80.000 degrees Celsius, to saturated steam at 2250.000kPa and 71.400% dry. ANS = kJ ...
*Sunday, July 14, 2013 at 5:35pm by Danny*

**Physics(Thermodynamics)**

1. The total enthalpy of 15.000kg of steam at 2250.000kPa is 34191.510kJ. Determine the dryness of the steam. ANS = % 2. Determine the quantity of heat required, to raise 11.100kg of water at 80.000 degrees Celsius, to saturated steam at 2250.000kPa and 71.400% dry. ANS = kJ ...
*Friday, July 12, 2013 at 2:22pm by Danny*

**physics-heat**

One cant solve this without knowing the time involved, or the mass of steam. steamers are vessels you can use to cook food in.food in steamer gains heat as the steam condenses on it.a boiler supplies steam at 105 degree to a steamer at the tare of 445 g min-1 what is the ...
*Tuesday, April 3, 2007 at 7:44am by bobpursley*

**Thermodynamics **

Posted by Danny on Saturday, July 13, 2013 at 9:42am. 1. The total enthalpy of 15.000kg of steam at 2250.000kPa is 34191.510kJ. Determine the dryness of the steam. ANS = % 2. Determine the quantity of heat required, to raise 11.100kg of water at 80.000 degrees Celsius, to ...
*Sunday, July 14, 2013 at 10:52am by Danny*

**chemistry**

q released when steam condenses. q = mass steam x heat vap water
*Monday, October 4, 2010 at 11:49am by DrBob222*

**chemistry**

q = mass steam x specific heat steam x (Tfinal-Tinitial)
*Thursday, October 3, 2013 at 5:34pm by DrBob222*

**physics**

if 8100 calories are released from 200g of steam at 100C, how much of the steam condenses?
*Thursday, January 31, 2013 at 10:40am by Hannah*

**Chemistry Lab+Help**

You filled the can with steam, then condensed the steam, bringing a vacumn, so the outside pressure crushed the can?
*Sunday, March 22, 2009 at 5:51pm by bobpursley*

**Science**

Ten grams of ice are heated in a closed container until it turns to steam. What is the mass of the steam?
*Thursday, March 15, 2012 at 3:46pm by Maura*

**world history**

who evented the fist steam engine http://en.wikipedia.org/wiki/Steam_engine http://campus.udayton.edu/~hume/Steam/steam.htm The quantity 5.85 x 10^4m is equivalent to..... a.5850 000m b.5840m c.58500m d.0.000585m
*Thursday, October 19, 2006 at 10:34pm by kiera791*

**CHEMISTRY**

carbon monoxide can be prepared by the reaction of steam with methane. CH4(g) + H2O(g) = CO(g) + 3H2(g) If 10g of methane is allowed to react with 10g of steam which of the reactants would be described as limiting. What is the theoretical yield of carbon monoxide if 10g of ...
*Monday, April 4, 2011 at 7:24pm by Anonymous*

**Math**

A heat exchanger is used to warm apple cider using steam as the heat source. The cider is heated from an initial temperature of 4°C to a final temperature of 65°C. The steam enters the heat exchanger as 50% quality steam and exits as water condensate at 85°C. Calculate the ...
*Sunday, February 17, 2013 at 11:19am by Paul*

**physics**

If we instead used 90 g of steam, how much of the 200 g of water would have turned into 100° C steam in the end?
*Sunday, April 3, 2011 at 5:06pm by Anonymous*

**US History**

The answers are 1. steamboat 2. canal system 3. horse-drawn cart 4. steam locomotive I think the answer is 1 or steam boat
*Tuesday, February 11, 2014 at 12:04pm by Rosa*

**physics**

We start with the assumption that all the steam condenses and all the ice melts .r•m+ c•m• (t-0) = λ•m + c•m• (100 – t), where r = 334000 J/kg is the heat of fusion, c =4180 J/kg•K, λ = 2250000J/kg is the heat of vaporization. Since the mass of steam = the mass of ...
*Thursday, April 19, 2012 at 9:51am by Elena*

**Theory of machine**

A punching machine carries out 5 holes per minute. Each hole of 30 mm dia in 40 mm thick plate requires 10 NM of energy per mm^2 of the sheared area. The punch has a stroke of 90 mm. find the power of the motor required if the mean speed of the flywheel if 20 m/s. If the total...
*Wednesday, August 1, 2012 at 5:10am by Dhilsath*

**Physics**

A passenger bus in Zurich, Switzerland derived its motive power from the energy stored in a large flywheel. The wheel was brought up to speed periodically, when the bus stopped at a station, by an electric motor, which could then be attached to the electric power lines. The ...
*Tuesday, November 4, 2008 at 12:39am by Suzy*

**Physics**

A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provide a means for storing energy in the form of rotational kinetic energy and are being considered as a possible alternative to batteries in electric ...
*Saturday, November 3, 2012 at 11:17pm by StressedStudent*

**AP Chemistry **

what pressure would have to be applied to steam at 350.degress C to condense the steam to liquid water (Hvap=40.7kJ/mol)
*Thursday, November 19, 2009 at 7:52pm by Angel*

**physics **

At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how many kilogram of water ...
*Sunday, March 31, 2013 at 8:46pm by Riana*

**physics **

At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how many kilogram of water ...
*Sunday, March 31, 2013 at 8:51pm by Riana*

**PHYSICS**

At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how many kilogram of water ...
*Sunday, March 31, 2013 at 9:44pm by Riana*

**Physics**

You set out to design a car that uses the energy stored in a flywheel consisting of a uniform 103-kg cylinder of radius R that has a maximum angular speed of 450 rev/s. The flywheel must deliver an average of 1.70 MJ of energy for each kilometer of distance. Find the smallest ...
*Tuesday, August 2, 2011 at 8:32pm by Alex*

**PHYSICS help please!!!!!!!!!!**

At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how many kilogram of water ...
*Sunday, March 31, 2013 at 11:46pm by Riana*

**trig/precalc**

a car's flywheel has a timing mark on it's outer edge. the height of the timing mark on the rotating flywheel is given by y=3.55sin[x - (pi/4)]. graph one full cycle of this function. I was not taught how to graph a function like this, only the simple y= sin x and y= cos x ...
*Tuesday, April 10, 2012 at 6:07pm by tabby*

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