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April 19, 2014

Search: physicsA steam catapult launches a jet aircraft (from rest) from the aircraft carrier John C. Stennis, giving it a speed of 160 mi/h in 2.40 s. ...C jumbo jet plane

Number of results: 1,296

Physics
A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 205 mi/h in 3.00 s. (a) Find the average acceleration of the plane. (b) Assuming the acceleration is constant, find the distance the plane moves.
Friday, September 21, 2012 at 6:13pm by Kelly

Physics
A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 190 mi/h in 2.70 s. a.) Find the average acceleration of the plane. b.) Assuming the acceleration is constant, find the distance the plane moves.
Thursday, September 5, 2013 at 2:16pm by Ashley

physics
A steam catapult launches a jet aircraft (from rest) from the aircraft carrier John C. Stennis, giving it a speed of 160 mi/h in 2.40 s. Find the average acceleration of the plane. Assuming that the acceleration is constant, find the distance the plane moves.
Thursday, September 16, 2010 at 12:34am by J

phsics
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 32.0 m above sea level, directed at an angle theta = 49.3 above the horizontal, and with a speed v = 25.8 m/s. Assuming that air friction can be...
Wednesday, September 22, 2010 at 7:30pm by Anonymous

Physics
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 35.0 m above sea level, directed at an angle theta = 45.9 above the horizontal, and with a speed v = 32.3 m/s. Assuming that air friction can be...
Friday, February 8, 2013 at 8:51am by Anonymous

physics
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 31.0 m above sea level, directed at an angle theta = 48.5 above the horizontal, and with a speed v = 35.6 m/s. Assuming that air friction can be...
Wednesday, February 1, 2012 at 11:21pm by Sue

physics
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 31.0 m above sea level, directed at an angle theta = 48.5 above the horizontal, and with a speed v = 35.6 m/s. Assuming that air friction can be...
Wednesday, February 1, 2012 at 11:21pm by Sue

phsics
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 32.0 m above sea level, directed at an angle theta = 49.3 above the horizontal, and with a speed v = 25.8 m/s. Assuming that air friction can be...
Thursday, September 23, 2010 at 10:39pm by Anonymous

physics
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H of 35.0 m above sea level, directed at an angle above the horizontal with an unknown speed v0. The projectile remains in flight for 6.00 seconds ...
Wednesday, September 14, 2011 at 4:04pm by nicolas

Physics
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.1 105 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 3.8 107 J at lift-off. What is ...
Saturday, November 13, 2010 at 8:46am by Patty

Physics
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 35.0 m above sea level, directed at an angle theta = 46.7 above the horizontal, and with a speed v = 28.4 m/s. Assuming that air friction can be...
Tuesday, November 6, 2007 at 3:46pm by Lindsay

Physics
all HELP appreciated! Thank You! A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.1 105 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of...
Monday, October 19, 2009 at 7:29pm by Pablo

Physics
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.10 105 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 4.30 107 J at lift-off. What is...
Sunday, November 11, 2012 at 6:35am by Donald

Physics
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 3.82 x 105 N. In being launched from rest it moves through a distance of 57.2 m and has a kinetic energy of 5.71 x 107 J at lift-off. ...
Friday, December 14, 2012 at 9:43pm by Ricardo

physics
a jet fighter plane is launched from a catapult on an aircraft carrier. it reaches a speed of 42 m/s at the end of the catapult in 2 sec. if the acceleration is constant, what is the length of the catapult?
Thursday, October 15, 2009 at 7:12pm by Anonymous

physics
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.4 x 10^5 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 5.0 x 10^7 J at lift-off. ...
Wednesday, October 15, 2008 at 9:25pm by nj

physics
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 33.0 m above sea level, directed at an angle theta = 46.9 above the horizontal, and with a speed v = 33.7 m/s. Assuming that air friction can be...
Tuesday, October 5, 2010 at 8:06pm by Bansnoob

physics
a atapult launcher on an aircraft carrier accelerates a jet from rest to 72m/s. The work done catapult during the launch is 7.6 x 10 to the 7th J. a)What is the mass of the jet? b) If the jet is in contact with the catapult for 2s, what is the power output of the catapult?
Monday, March 15, 2010 at 5:47pm by Clayton

Physics
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H of 31.0 m above sea level, directed at an angle q above the horizontal with an unknown speed v0. a. The projectile remains in flight for 6.00 ...
Thursday, November 5, 2009 at 5:33pm by Anonymous

Physics 1
A catapult 100 m long launches a 3.0 x 10^4 kg jet from the deck of a carrier. Starting at rest, the plane takes off with a speed of 80 m/s. Find: a)The acceleration, b) the average force, c) the work done, d) time to accelerate , e) the power developed.
Wednesday, November 28, 2012 at 1:23pm by John

physics
A catapult with a spring constant of 1.0 104 newtons per meter is required to launch an airplane from the deck of an aircraft carrier. The plane is released when it has been displaced 0.50 meter from its equilibrium position by the catapult. What is the energy acquired by the ...
Sunday, November 21, 2010 at 10:16pm by ...

Algebra
A catapult launches a boulder with an upward velocity of 184 feet per second. The height of the boulder, (h), in feet after t seconds is given by the function h(t) = 16t + 184t +20. How long does it take the boulder to reach its maximum height? What is the boulders maximum ...
Thursday, April 3, 2014 at 10:07pm by Sandra

Physics
You shoot a 51-g pebble straight up with a catapult whose spring constant is 320N/m. The catapult is initially stretched by 0.20m. How high above the starting point does the pebble fly? Ignore air resistance.
Saturday, March 26, 2011 at 4:19pm by Work needed!

Physiks
You shoot a 51-g pebble straight up with a catapult whose spring constant is 320N/m. The catapult is initially stretched by 0.20m. How high above the starting point does the pebble fly? Ignore air resistance.
Saturday, March 26, 2011 at 10:23pm by Anonymous

help with this physics question
You shoot a 52-g pebble straight up with a catapult whose spring constant is 320 N/m. The catapult is initially stretched by 0.30 m. How high above the starting point does the pebble fly? Ignore air resistance.
Monday, February 28, 2011 at 9:04am by TheRealGame

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 12000 kg airplane launched by a catapult from an aircraft carrier is accelerated from 0 to 200 km/h in 3 s. (a) How many times the acceleration due to gravity is the airplane's acceleration? (b) What is the average force the catapult exerts on the airplane?
Wednesday, January 16, 2013 at 11:58am by Jan

physics
A 12 000-kg airplane launched by a catapult from an aircraft carrier is accelerated from 0 to 200 km/h in 3 s. (a) How many times the acceleration of gravity is the airplanes acceleration? (b) What is the average force that the catapult exerts on the airplane?
Monday, November 18, 2013 at 7:29pm by josna

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

science
Check these sites. http://www.knightforhire.com/catapult.htm http://www.medieval-castle-siege-weapons.com/how-to-make-a-catapult.html http://www.stormthecastle.com/catapult/
Saturday, October 11, 2008 at 7:31pm by Ms. Sue

PHYSICS
A catapult launches a rocket at an angle of 56.9 above the horizontal with an initial speed of 100 m/s. The rocket engine immediately starts a burn, and for 3.25 s the rocket moves along its initial line of motion with an acceleration of 28.1 m/s2. Then its engine fails, and ...
Wednesday, April 25, 2012 at 11:26pm by j

physicsa 6a
sorry again my computer..2.4m
Tuesday, May 18, 2010 at 8:17pm by Sally

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 engines 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

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
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

Math
13. A catapult launches a boulder with an upward velocity of 148 ft/s. The height of the boulder (h) in feet after t seconds is given by the function h = 16t + 148t + 30. How long does it take the boulder to reach its maximum height? What is the boulders maximum height? ...
Monday, March 11, 2013 at 7:53pm by Jim

physics
A catapult launches a rocket at an angle of 47.5 above the horizontal with an initial speed of 109 m/s. The rocket engine immediately starts a burn, and for 2.49 s the rocket moves along its initial line of motion with an acceleration of 30 m/s2. Then its engine fails, and ...
Wednesday, April 25, 2012 at 10:32pm by tina

physicsa 6a
I am so sorry my computer didn't transfer it 28nC 4.00*10^4N/C .550m to the right
Tuesday, May 18, 2010 at 8:17pm by Sally

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

physicsa 6a
thnak you! Can you please help me with this one as well? Its the same problem: 2.40 at an angle of 45.0 downward from the horizontal?
Tuesday, May 18, 2010 at 8:17pm by Sally

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

PHYSCS
At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill with a homemade catapult. They aim for a point that is 31.1 m away and at the same height from which the catapult releases the bundle. The initial ...
Monday, February 27, 2012 at 10:57am by help

PHYSCS
At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill with a homemade catapult. They aim for a point that is 31.1 m away and at the same height from which the catapult releases the bundle. The initial ...
Monday, February 27, 2012 at 11:47am by please please please helpppp

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

PHYSCS
At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill with a homemade catapult. They aim for a point that is 31.1 m away and at the same height from which the catapult releases the bundle. The initial ...
Friday, February 24, 2012 at 1:16pm by MARA

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

pysics 1
At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill with a homemade catapult. They aim for a point that is 31.1 m away and at the same height from which the catapult releases the bundle. The initial ...
Wednesday, February 22, 2012 at 2:18pm by jelena pleeease help

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

PHYSCS
please any one help me for this questionnnnnnnn need urgently At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill with a homemade catapult. They aim for a point that is 31.1 m away and at the same ...
Monday, February 27, 2012 at 9:05am by LARA

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

Advanced physical science
A fiery ball of wood is loaded into a medieval catapult to be thrown into a castle. Unfortunately, the attacking heathens are not very smart and since geometry and physics were not studied in their time, they launched the ball straight up into the air. The catapult launcher ...
Thursday, October 4, 2012 at 11:13pm by Confused

physics
A catapult gives a rock a vertical velocity of 122m/s. a. Determine the time the rock is in the air. b. Determine the maximum height the rock would reach. c. As the rock leaves the catapult the rock also has a horizontal velocity of 34m/s. solve for the rocks range. d. Solve ...
Monday, November 19, 2012 at 9:01pm by Sadie

physics
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 79.0 m/s at ground level. The engines then fire, and the rocket accelerates upward at 3.90 m/s2 until it reaches an altitude of 980 m. At that point its engines fail, and the...
Sunday, August 25, 2013 at 2:06am by ann

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 4C to a final temperature of 65C. The steam enters the heat exchanger as 50% quality steam and exits as water condensate at 85C. 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 .rm+ cm (t-0) = λm + cm (100 t), where r = 334000 J/kg is the heat of fusion, c =4180 J/kgK, 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

pre-calculus
Josh fires a catapult 18 ft above the ground with an initial velocity of 25 ft/sec. The misslie leaves the catapult at an angle of degree theta with the hoizontal and heads toward a 40 ft wall 500 ft from the launch site. If the missle is fired at a 20 degree angle, does it ...
Sunday, June 2, 2013 at 6:23pm by Peter

Math help
A catapult launches a boulder with an upwark velocity pf 184 feet per second. the heigh of the boulder in feet after t seconds is given by the function h(t)=-16t^2+184t+20. how long does it take the boulder to reach its maximum height? What is the boulders maximum height? ...
Wednesday, April 2, 2014 at 8:46pm by Alex

Word problem
. A catapult launches a boulder with an upwark velocity pf 184 feet per second. the heigh of the boulder in feet after t seconds is given by the function h(t)=-16t^2+184t+20. how long does it take the boulder to reach its maximum height? What is the boulders maximum height? ...
Wednesday, April 2, 2014 at 8:10pm by Alex

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

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

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

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

physicsa 6a
A charge of 28.0 is placed in a uniform electric field that is directed vertically upward and that has a magnitude of 4.00104 . What work is done by the electric force when the charge moves
Tuesday, May 18, 2010 at 8:17pm by Sally

physicsa 6a
You need to provide units for the charge and the E-field. I assume they are Coulombs and Volts/meter, but unless you say what they are, you have not asked a proper physics question. The work done on the charge will depend upon how far it moves.
Tuesday, May 18, 2010 at 8:17pm by drwls

chemistry/please double check
No, I didn't read past the first line. Steam is not liquid water; therefore, you may not use the specific heat of water. You must use the specific heat of steam. THEN, it doesn't go from 125 to zero. It goes from 125 to 100. In the initial post I told you what we were ...
Tuesday, October 28, 2008 at 8:02pm by DrBob222

Chemistry 106 ch 11
q1 = heat released when steam @ 122 moves to 100. q1 = mass steam x sp h steam x (Tfinal-Tinital) q2 = heat released when steam condenses. q2 = mass steam x heat vap q3 = heat released when H2O @ 100 moves to 39 C. q3 = mass H2O x sp h H2O x (Tfinal-Tinitial) Then add q1 + q2...
Saturday, February 15, 2014 at 6:23pm by DrBob222

Chemistry
What pressure would have to be applied to steam at 325C to condense the steam to liquid water (H vap = 40.7 kJ/mol)? do u use the Clausius claperyron for this also??? how do u do this?
Friday, November 28, 2008 at 10:41pm by Viola

chemistry
Read the other problem you posted about moving T of steam at 135 C to ice at -45 and pull out the one part that deals with condensing the steam to liquid at 100 C.
Saturday, February 7, 2009 at 9:14pm by DrBob222

Chemistry
Thank you for showing your work. I think you have failed to take into account the added water from the steam AND that the final T is NOT 100 C. So I think you have three items at play here. Steam condenses at 100 to liquid water (which adds to the mass of the water) and that ...
Wednesday, October 8, 2008 at 11:45pm by DrBob222

Analogies
volcano:lava::geyser:_____a.steam b.old faithful c.mountain d.magma a.steam because what comes out of a volcano? lava! what comes out of a geyser? steam! for analogies you just have to find the connection
Thursday, February 15, 2007 at 9:35pm by Haley

social studies
What were the 5 scientific discoveries of the Industrial Revolution? I already hae the steam engine and a boat powered by the steam engine.
Monday, September 28, 2009 at 10:54pm by Anya

chemistry, stoichiometry
you need three times as many moles of steam as you have of nitrogen (6/2). moles steam: 3*.225
Tuesday, April 30, 2013 at 9:13pm by bobpursley

Thermodynamic
One Kg steam with a quality of 0.2 is heated in a piston / cylinder vessel at a constant pressure of 200 KPa unit the temperature reaches 400 degree C. calculate the work done by the steam.
Monday, January 10, 2011 at 1:22pm by chris

CHEMISTRY
Is that stuff at the bottom of your post a hint on how to work the problem. Just follow that. For example, how much energy is released when steam is moved from 125 C to 100 C? That will be mass steam x specific heat steam x (25) = q1. 58.4 g x 2.0 J/g*C x 25 = 2,920 J. You had...
Saturday, November 17, 2012 at 12:27am by DrBob222

physics
i have to build a catapult that will fire a projectile that will pass a 1m tall wall 1 m away from starting point and land in a target 1 m away from the wall. the catapult cant be more than 23cm high. I'm having some problems here with this for simpicity issues i said launch ...
Thursday, December 25, 2008 at 3:13pm by physics

Chemistry (Internal Energy)
5 kg of steam contained within a piston-cylinder assembly undergoes an expansion from state 1, where the specific internal energy U(1) is = 2710 [kJ/kg] to state 2, where U(2) = 2660 [kJ/kg]. During the process, there is heat transfer to the steam with a magnitude of 80 [kJ]. ...
Tuesday, October 2, 2012 at 11:26pm by Simon

science
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 degrees celcius to a final temperature of 65 degree celcius. The steam enters the heat exchanger as 50% quality steam and exits as water condensate...
Monday, March 4, 2013 at 8:02pm by Bev

Food Chemestry
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 degrees celcius to a final temperature of 65 degree celcius. The steam enters the heat exchanger as 50% quality steam and exits as water condensate...
Monday, March 4, 2013 at 7:27pm by Bev

Chemistry
Energy is released when 100kg of steam at 150.0C and standard pressure changes to water at 60.0C. Calculate the total energy change. Energy change= heat to cool steam to 100C + heat to change steam to water + heat change for water from 100 to 60c
Saturday, September 23, 2006 at 3:06pm by J.M.

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