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April 20, 2014

Search: A sealed cubical container 20cm on a side contains three times Avogadro's number of molecules at a tempature

Number of results: 2,404

PHYSICS
A sealed cubical container 26.0 cm on a side contains three times Avogadro's number of molecules at a temperature of 15.0C. Find the force exerted by the gas on one of the walls of the container.
Friday, November 5, 2010 at 7:15pm by john

physics
A sealed cubical container 30.0 cm on a side contains three times Avogadro's number of molecules at a temperature of 20.0C. Find the force exerted by the gas on one of the walls of the container.
Monday, November 8, 2010 at 7:48pm by Milo

math
a cubical container is half filled with water if the volume of water in the container is 500cm3 find the length of one edge of container?
Monday, April 23, 2012 at 10:41am by john

physics
sealed metal container can withstand a pressure difference of 0.630 . The container initially is filled with an ideal gas at 12 and 0.80 To what temperature can you cool the container before it collapses? (Ignore any changes in the container's volume due to thermal expansion
Saturday, January 15, 2011 at 12:42am by Josh

Chemistry
A pure sample of tritium, 3H, was prepared and sealed in a container for a number of years. Tritium undergoes decay with a half-life of 12.32 years. How long has the container been sealed if analysis of the contents shows there are 5.25 mol of 3H and 6.35 mol of 3He present...
Tuesday, December 7, 2010 at 9:11am by Queen

AP Chemistry
Equal masses of Ne and Ar are placed in a rigid, sealed container. If the total pressure in the container is 1.2 atm, what is the partial pressure of Ar?
Wednesday, November 6, 2013 at 6:27pm by Elizabeth

chem
One mole of an ideal gas is sealed in a 22.4- container at a pressure of 1 and a temperature of 273 . The temperature is then increased to 305 , but the container does not expand. What will the new pressure be?
Thursday, October 9, 2008 at 2:38pm by Anonymous

chemistry
One mole of an ideal gas is sealed in a 22.4-L container at a pressure of 1 and a temperature of 273 K . The temperature is then increased to 305 K , but the container does not expand. What will the new pressure be?
Thursday, October 9, 2008 at 2:40pm by Anonymous

Physics
I understand there is a relationship between pressure & temperature in a sealed rigid container. An open container is placed in a freezer at -15 degrees C then the door is opened and the cap replaced with the freezer at 1000mb what will the pressure be within the container if ...
Wednesday, December 7, 2011 at 1:36am by Mike

chemistry
what do coefficents represent in a balanced equation? What would removing air from a sealed container do to the container? What does it mean that "like dissolves like"? Dissolving a solute in a solvent does what to the solven'ts freezing and boiling points? What must be true ...
Tuesday, June 10, 2008 at 8:55pm by Miley

Science
5.00 mol of solid A was placed in a sealed 1.00-L container and allowed to decompose into gaseous B and C. The concentration of B steadily increased until it reached 1.10 M, where it remained constant. Then, the container volume was doubled and equilibrium was re-established. ...
Friday, April 4, 2014 at 8:31pm by Susie

science
You are confronted with the following question: One mole of an ideal gas is sealed in a 22.4- container at a pressure of 1 and a temperature of 273 . The temperature is then increased to 305 , but the container does not expand. What will the new pressure be? Part A The most ...
Tuesday, March 20, 2012 at 11:18pm by Anonymous

Chemistry
4.00 mol of solid A was placed in a sealed 1.00-L container and allowed to decompose into gaseous B and C. The concentration of B steadily increased until it reached 1.20 M, where it remained constant. A(s) <-------> B(g)+C(g) Then, the container volume was doubled and ...
Tuesday, February 5, 2013 at 9:07pm by Anon

math
container A has twice the capicity of container B. container A is full of sand and container B is empty. suppose 1/8 of the sand in container A is poured into container B. what fractional part of container B will conatin sand.........please halpme i am confused
Monday, March 22, 2010 at 5:15pm by Katherine

math
container A has twice the capicity of container B. container A is full of sand and container B is empty. suppose 1/8 of the sand in container A is poured into container B. what fractional part of container B will conatin sand.........please halpme i am confused
Monday, March 22, 2010 at 6:02pm by Katherine

math
container A has twice the capicity of container B. container A is full of sand and container B is empty. suppose 1/8 of the sand in container A is poured into container B. what fractional part of container B will conatin sand.........please halpme i am confused
Monday, March 22, 2010 at 6:29pm by Katherine

math
container A has twice the capacity of container B. Container A is full of sand and container B is empty. Suppose 1/8 of the sand in container A is poured into Container B. What fractional part of container B will contain sand?
Thursday, September 27, 2012 at 10:30pm by israel

chemistry
(a) Coefficients represent molecules, or formula units, or moles, depending on the situation. (b) Removing air from a sealed container reduces the pressure inside it. How this affects the container, depends on the strength and rigidity of the container. (c) Polar solvents ...
Tuesday, June 10, 2008 at 8:55pm by GK

Physics
Dumping sealed containers from ship decks that are 2 meters above the water surface. With a final depth of 100 meters. Find the final velocity of the container on impact. 1. Container in the shape of right circular cylinders, containers of .5 meters diameter and 1.0 meter ...
Sunday, October 31, 2010 at 10:36am by Christopher

physics
Container A is sealed (not open to the atmosphere) filled with water with an unlimited width and depth. Container A consists of Section 1 and 2. The upper part of Container A, Section 1 has 5 feet of air at 21.83 psi Tube B is 80 feet long and full of air at 14.7 psi; B is ...
Wednesday, August 17, 2011 at 10:31pm by Anonymous

CRC
A sample of ideal gas is in a sealed container. The pressure of the gas is 675torr , and the temperature is 28\, ^{\circ}C . If the temperature changes to 91\, ^{\circ}C with no change in volume or amount of gas, what is the new pressure, P_2, of the gas inside the container?
Sunday, April 28, 2013 at 2:42pm by Touch

math word problems
Container A has twice the capacity of container B. Container A is full of sand and container B is empty. Suppose 1/8 of the sand in container B will contain A is poured into container B. What fractional part of container B will contain sand?
Saturday, September 8, 2012 at 3:52pm by cristina

Quemistry
L has twice the volume of container J. Container J is at a temperature of 100 K, and container L is at 200 K. How does the pressure in container J compare with that in container L
Sunday, June 24, 2012 at 11:01am by JJ

chemistry
What is Boyle's Law constant if a sealed rigid container with a volume of 650 mL has a pressure of 131.1 kPa ?
Tuesday, November 27, 2012 at 1:53pm by zale

chemistry
four grams of he are in a sealed, 2l container. If he were a true ideal gas, how would its behaviour differ from its actual behavior
Sunday, July 31, 2011 at 11:14am by marjani

chemistry
four grams of he are in a sealed, 2l container. If he were a true ideal gas, how would its behaviour differ from its actual behavior
Sunday, July 31, 2011 at 11:15am by marjani

Chemistry
I am having such a hard time approaching this problem. It would be great if you can help me. 1.0 mole of CH4 react with 1.0 mole of O2 in a sealed container. (a) When the reaction is complete, what is the container? (b) How many moles of water are produced? CH4 + 2O2 ---> ...
Monday, October 15, 2012 at 3:09am by Lana

Chemistry
I am having such a hard time approaching this problem. It would be great if you can help me. 1.0 mole of CH4 react with 1.0 mole of O2 in a sealed container. (a) When the reaction is complete, what is the container? (b) How many moles of water are produced? CH4 + 2O2 ---> ...
Monday, October 15, 2012 at 3:10am by Lana

AP Physics
Two radioactive isotopes are extracted from spent nuclear fuel and placed in a metal container, which is then sealed and deposited in a nuclear waste disposal facility. The graph above shows how many nuclei of isotopes 1 and 2 remain as a function of time. 1) What type of ...
Wednesday, March 9, 2011 at 9:21am by Amanda.

Chemistry
the temperature of a gas in sealed container changes from 20. c to 40.0 C. If the volume remains constant,the pressure will change from 660 torr to ?
Sunday, August 28, 2011 at 12:41am by Devin Boutte

Geometry
20cm * 20cm * $50/m^2 * m^2/(100cm)^2 = 20*20*50/100*100 = $2 per tile makes sense, since 20cm = 1/5 m, so there are 25 tiles/m^2
Thursday, March 8, 2012 at 5:07pm by Steve

Chemistry
A gas exerts a pressure of 350 mmHg in a sealed container. What will be its pressure if the temperature doubles
Thursday, June 20, 2013 at 12:59pm by Anonymous

chemistry
As long as the container is sealed, conservation of mass is conserved (i.e., 1,000 g is before the reaction and 1,000g after the reaction.)
Thursday, August 1, 2013 at 11:57am by Devron

Chemistry. can jus anyone giv me ther opinion.
Eva has two containers labeled A and B. The diameter of container A is 8 inches and the diameter of container B is 12 inches. If Eva pours the water from container A into container B, which will occur...
Friday, September 17, 2010 at 12:16pm by Jason

math
The number of sweets in Container X was 24 more than Container Y. When I removed 42 sweets from Container X and transfered then in Container Y,the number of sweets in Container Y became thrice of Container X. Find the number of sweets in Container X first.
Monday, February 13, 2012 at 6:20am by Kieron

Physics
48.0 g of oxygen (O2 is diatomic) are confined in a rigid 1.00x10^3 L cubical container at temperature 300.0 K. Find the gas pressure and the force exerted by the oxygen gas on any of the six faces of the cube. Mass number of an oxygen atom is 16.0 1.00L=10^-3 m^3
Wednesday, April 24, 2013 at 11:56am by Lashawn

chemistry
the vapor pressure of water at 25 C is 27.66 torr. is 0.5 g water is enclosed in a 1.5 L sealed container, will there be nay liquid. If yes, what mass?
Sunday, September 6, 2009 at 2:37am by vy

Science
It depends on what question you are trying to answer. Are you trying to relate the growth to humidity or temperature? What is your control? Is the food covered or not? Is the container sealed?
Tuesday, March 19, 2013 at 11:15pm by PsyDAG

science
Well im in fifth grade and have never had to do anything like that..., but might i suggest a metal container of some sort but sealed tight with styrofoam interior and exterior?
Tuesday, November 17, 2009 at 7:30pm by Anonymous

Chemistry
If a sugar cube measured 20cm by 20cm how much surface area would be exposed to the solvent(water)
Sunday, March 18, 2012 at 8:54pm by sabrina

Science
Container A and B both container the same kind of liquid. Container A has a volume of 5 mL and Container B has a volume of 8 mL. Which container, if either has the highest density? Explain your Answer.
Monday, September 3, 2012 at 3:16pm by Rachel

Honors Geometry
A cylindrical container weighs 36 ounces. Another container made out of the same material is similar to the first container with a height that is three-fourths the height of the first container. To the nearest tenth of an ounce, how much does the second container weigh?
Friday, May 2, 2008 at 12:01pm by Confused.

Chemistry 1
What is the chemical equation, name, and formula for the follwing? "When strongly heated, magnesium sulfide formed a yellow crystalline deposit on the walls of a sealed reaction vessel. Metallic deposits were found on the bottom of the container"
Tuesday, April 29, 2008 at 9:06pm by Christy

Science
You know that a gas in a sealed container has a pressure of 111kPa at 23 Celsius. What will the pressure be if the temperature rises to 475 Celsius?
Thursday, October 18, 2012 at 5:11pm by Anna

Chemistry
You have a chemical sealed in a glass container filled with air. The glass container has a mass of 200.0 grams and the chemical has a mass of 850 grams. The total mass of the setup is 1050 grams. The chemical is ignited by means of a magnifying glass focusing sunlight onto the...
Monday, January 23, 2012 at 7:11pm by Staci

CHEM
A) a picture shows a container that is sealed at the top by a movable piston. Inside the container is a ideal gas at 1.00atm , 20.0 *C, and 1.00L. (The pic is of a 2L container which has a piston pushed downward to the 1L level. Under the piston, under the 1L mark, is a sample...
Sunday, October 28, 2007 at 8:57pm by K

math
the base of a cylindrical juice container is a circle with diameter 20 cm. The height of the container is 80cm. What is the capacity of the juice container? show your work. b) The juice container will be filled to 90% of its capacity. What will be the volume of juice in the ...
Monday, November 10, 2008 at 10:03pm by sidlord

chemistry
An ideal gas in a sealed container has an initial volume of 2.50 L. At constant pressure, it is cooled to 14.00 C where its final volume is 1.85 L. What was the initial temperature?
Tuesday, November 6, 2012 at 9:56pm by Anonymous

chemistry
An ideal gas in a sealed container has an initial volume of 2.45 L. At constant pressure, it is cooled to 23.00 C where its final volume is 1.75 L. What was the initial temperature?
Monday, May 6, 2013 at 1:52am by Doll

chemistry
an ideal gas in a sealed container has an initial volume of 2.70L. at constant pressure, it is cooled to 25.00 C where its final volume is 1.75L. what was the initial temperature?
Wednesday, September 18, 2013 at 6:12pm by Anonymous

Chemistry
Hydrazine, N2H4 can be made (on paper) by reaction of molecular nitrogen and molecular hydrogen, 2 H 2 ( g ) + N 2 ( g ) --> N 2 H 4 ( g ) and suppose that the equilibrium constant Kp has the value 110^3. (a) A stoicheometric mixture of H2 and N2 is placed in a container ...
Saturday, August 13, 2011 at 5:40pm by Katherine

chemistry
You have a chemical sealed in a glass container filled with air. The glass container has a mass of 200.0 grams and the chemical has a mass of 800 grams. The total mass of the set-up is 1000 grams. The chemical is ignited by means of a magnifying glass focusing sunlight onto ...
Thursday, August 1, 2013 at 11:57am by Kris

Physics
A gas is sealed in a container with rigid walls that allow heat to flow through them. A thermal process takes place on the gas. What would be the best model for the type of process?
Thursday, June 21, 2012 at 11:18am by Peter

physics
If you fill a container with air at room temperature (400 K), seal the container, and then heat the container to 500 K, what will the pressure be inside the container? Assume atmospheric pressure equal to 100,000 Pa.
Sunday, October 13, 2013 at 10:02pm by Em

math
if a fish tank shaped like a rectangular prism that is 20cm by 20cm by 16cm. what is the volume of the tank
Wednesday, January 9, 2013 at 6:36pm by shemeika

Chemistry
Need help in AP chemistry on Equilibrium When heated, hydrogen sulfide gas decomposes according to the equation 2 H2S(g) ⇄ 2 H2(g) + S2(g) A 3.40 g sample of H2S(g) is introduced into an evacuated rigid 1.25 L container. The sealed container is heated to 483 K, and 3.72 ...
Monday, April 9, 2012 at 8:58pm by Sam

math
Which of the following best describes the relationship between the size of a one ounce container compared to a one pound container? 1 the size of a one oz container is 16 times the size of a pound container. 2 the size of a one oz container is 1\16 the size of a 1 pound ...
Monday, February 27, 2012 at 9:11pm by brianna

chemistry
A 0.10-mol sample of H2(g) and a 0.10-mol sample of Br2(g) are placed in a 2.0-L container. The reaction H2(g) + Br2(g) <----> 2 HBr(g) is then allowed to come to equilibrium. A 0.20 mol sample of HBr is placed into a second 2.0-L sealed container at the same temperature...
Monday, February 11, 2013 at 2:35pm by Adam

chem
Yesterday, Jason had a sample of helium indoors (T = 23oC) in a sealed container, with a pressure of 760 mm Hg. He got bored and took the container outside, where the temperature was a blistering 35oC. He calculated the new pressure to be 750 mm Hg. Jason knew that this answer...
Sunday, December 2, 2007 at 1:26pm by Tom

math problem
Two large containers each contain the same amount of juice. When 54oz. of the first container are poured into the second container, the second container has 4 times as much juice as the first container. How many ounces of juice did the first container originally have?
Saturday, October 27, 2012 at 2:23pm by Bob

mueller
You know that a gas in a sealed container has a pressure of 111 kPa at 23 degrees Celsius. What will the pressure be if the temperature rises to 475 degrees Celsius?
Sunday, February 16, 2014 at 7:23pm by victoria

pressure
an ideal gas in a sealed container has an initial volume of 2.70L. at constant pressure, it is cooled to 25.00 C where its final volume is 1.75L. what was the initial temperature?
Wednesday, September 18, 2013 at 6:13pm by Anonymous

Chemistry 101
It appears to me that if you put the balloon into a container that it may well fill the container; therefore, the volume of the balloon will be the size of the container. Also, I wonder if the second pressure is inside the balloon or outside the balloon? And is the container a...
Sunday, July 11, 2010 at 9:06pm by DrBob222

Physical science
9 mol HI(g)is sealed with H2(g)in an empty 2 dm container when equilibriup is reached by the reaction..H2(g)+I2(g)=2HI(g) at 130 C it found that there are 5 mol HI(g)in the equilibrium mixture.calculate the equilibriup constant
Thursday, January 31, 2013 at 10:53am by Lillian nhlapo

biology
i have two questions about cellular respiration that i cant get..: 1. why do you keep breating heavily for some time even after you have completed strenuous excercise? (i think this has to do with lactic acid fermentation???) 2. why do winemakers want to keep fermenting grapes...
Tuesday, March 3, 2009 at 3:38pm by anonymous

chemistry
A mixture of 2.0 mol H2 and 1.0 mol of O2 is placed in a sealed evacuated container made of a perfect insulating material at 28C. The mixture is ignited with a spark and it reacts to form liquid water. What is the final temperature of the water
Monday, November 22, 2010 at 10:28pm by John

Physics (mirrors)
If a virtual image occurs at 20cm "behind" a concave mirror, would u put a screen 20cm before the mirror to obtain the clearest possible image? if not, where?
Sunday, March 23, 2008 at 5:11am by Mikal

science
how would 10 grams of helium be different that 10 grams of helium in a sealed container.
Monday, December 9, 2013 at 7:28pm by jaylon

math
a container has volume 1m cubed the lenght of the container is 200cm. list all the possible dimensions of the container. each dimension is whole number of cm.
Tuesday, February 22, 2011 at 8:22pm by erick

Acceleration
v = at = 20cm/s^2 * 5s = 100m/s s = 1/2 at^2 = 1/2 * 20cm/s^2 * (5s)^2 = 250cm
Monday, January 21, 2013 at 8:25am by Steve

Chemistry
Ammonia reacts with oxygen at 120 C to form NO and H20 in a sealed 40-L container. When 34 g of ammonia reacts with 96 g of oxygen, what is the partial pressure of the NO? What is the total pressure?
Sunday, May 20, 2012 at 11:31am by Erin

Physics
A one-liter container completely filled with mercury has a mass of 13.6 kg and weighs 133.3 N. What is the buoyant force on the container if the container is placed in water?
Tuesday, March 8, 2011 at 7:17pm by Ariannah

Geometry - plz help
h=x b1=21cm b2=20cm area=225.5cm2 h=2(225.2)/(21cm+20cm)
Wednesday, May 25, 2011 at 1:34pm by ashley

chemistry
A mixture containing 50grams of carbon and 75 grams of oxygen is sealed in a flask. The total mass of the system is 225 grams. The flask is heated to cause the carbon and oxygen to react. The sealed flask is massed. What is the mass of the sealed flask? A) 125 grams B) 150 ...
Monday, January 20, 2014 at 8:29pm by steve

Physics - Another Question
"A meter stick is held vertically behind an object on a spring. The object vibrates from the 20cm mark to the 32cm mark on the stick. Find the displacement when the object is at the 20cm mark, 24cm mark, 26cm mark, and 30cm mark." I had found the equilibrium position to be ...
Tuesday, July 20, 2010 at 4:42pm by Stuck

physics
A lost shipping container is found resting on the ocean floor and completely submerged. The container is 5.7 m long, 2.7 m wide, and 2.3 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from the surface. When ...
Sunday, March 10, 2013 at 9:07pm by chel

Physics
A lost shipping container is found resting on the ocean floor and completely submerged. The container is 6.0 m long, 2.2 m wide, and 2.3 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from the surface. When ...
Saturday, April 19, 2014 at 6:56pm by Linda

chemistry
Eva has two containers labeled A and B. The diameter of container A is 8 inches and the diameter of container B is 12 inches. If Eva pours the water from container A into container B, which will occur?
Wednesday, June 8, 2011 at 9:44am by Anonymous

science
Napolweon pencil has a mass of 3 grams (0.27Napoleon ) when he lifts his pencil from the desk to his paper he moves it an average of 20cm (o.20m) He then returns it to his desk moving it another 20cm How much work did he do on his pencil? w=FXD
Saturday, October 24, 2009 at 12:39pm by Barbara

science
Napolweon pencil has a mass of 3 grams (0.27Napoleon ) when he lifts his pencil from the desk to his paper he moves it an average of 20cm (o.20m) He then returns it to his desk moving it another 20cm How much work did he do on his pencil? w=FXD
Saturday, October 24, 2009 at 12:58pm by Barbara

Chemistry
A sealed flask containing 1.0 mole of H (g) and a sealed flask containing 2.0 moles of He(g) are at the same. 2 temperature. The two gases must have equal 1. masses 2. volumes 3. average kinetic energies 4. numbers of molecules
Sunday, April 12, 2009 at 4:51pm by .

Chemistry
After 4.00 mol of C2H4(g) and 2.50 mol of Br2 (g) are placed in a sealed 1.0L container, the reaction reaches equilibrium and is written following: C2H4(g) + Br2(g) -> C2H4Br2(g) ... Calculate the equilibrium concentrations of all three substances.
Thursday, August 9, 2012 at 3:17pm by Sarah

physics
A closed container with a volume of 8000cm^3 is filled with Xenon gas. the temperature is 273K and the pressure is 2 atm. How many moles of Xenon are in the container? The container is now submerged in boiling water until the gas inside the container is at 373K. What is the ...
Monday, December 23, 2013 at 11:08am by Hil

Chemistry
A sealed flask containing 1.0 mole of H2(g) and a sealed flask containing 2.0 moles of He(g) are at the same temperature. The two gases must have equal 1. masses 2. volumes 3. average kinetic energies 4. numbers of molecules
Sunday, April 12, 2009 at 4:51pm by .

Chemistry
A sealed flask containing 1.0 mole of H2(g) and a sealed flask containing 2.0 moles of He(g) are at the same temperature. The two gases must have equal 1. masses 2. volumes 3. average kinetic energies 4. numbers of molecules
Sunday, April 12, 2009 at 6:10pm by .

Math
{Hello everyone i'm back}:) I have a problem..: Kevin has 5 containers of chocolate. The first container has 110 peices of chocolate, the third container has twice as many peices of chocolate as the second container and the fourth container has half as many peices as the first...
Thursday, December 2, 2010 at 7:21pm by Sherkyra8456

Chemistry
1.278 mL of water at 10C was placed in a 3.0 L container that was sealed and evacuated. Then, 3440 J of heat was added to the water. Determine the pressure inside the container after heating. (Assume all of the heat goes into the water.) d (H2O(s)) 1.00 g/cm3 Csp(H2O(s)) 2.08...
Thursday, March 3, 2011 at 3:46am by lisa

Algebra
Use this proportionality: A correlation V square 2/3 How much more material is needed to manufacture an industrial plastic container with twice the volume of a similar container? A manufacturer of plastic containers prices its product by the amount of plastic used to make the ...
Saturday, November 26, 2011 at 5:04pm by John

chemistry
I need help setting up this problem: A 5.0 sample of O2 is in a container at STP. What volume is the container and how many molecules of O2 in the container and how many atoms of oxygen?
Monday, November 9, 2009 at 1:58pm by alexis

math
The bacteria is in 7 liters container double every 3 minutes. After 54 minutes the container is full. How long did it take to fill a 1/4 of the container?
Monday, April 29, 2013 at 11:52pm by Anonymous

Precalculus
The bacteria in a 8-liter container double every 2 minutes. After 55 minutes the container is full. How long did it take to fill a quarter of the container?
Wednesday, April 13, 2011 at 9:03pm by Josh

Math
A container in the shape of a rectangle solid with the dimensions of 4 X 5 X10 is placed so that its height is 10. Water fills the container to a heaight of 6. The container is then turned so that the base dimensions are 4 X 10. Determine the height of the water in the container.
Friday, May 27, 2011 at 11:48pm by Alex

Chemistry
A sealed 1.0L flask is charged with .500mol I2 and .500mol Br2 and an equilibrium reaction esues: I2(g)+Br2(g)=2IBr(g) When the container contents achieve equilibrium, the flask contains .84 mol of IBr. What is the value of the eqilibrium constant? (K)
Thursday, March 21, 2013 at 2:21pm by Jonah

graphic design
When pouring a liquid from a large container into a smaller container, where do you place the smaller container?
Tuesday, October 20, 2009 at 6:09pm by Yamil

physics
a concave mirror of diameter 40m is used with a 6cm tall object placed 20 cm from it. Where is the image? Can you check my solution Radius(R)=20cm Distance object(do)=20cm (2/R)=(1/do)+(1/di) (1/di)=(2/R)-(1/do) why do they give you the object height i dont think you need to ...
Monday, April 28, 2008 at 9:03am by shan

olomu senior community secondary school Ajah
the Angel is /ABC/ inscribed in a circle center O an M radius =20cm, /AM/=10cm /AO/=20cm than /OM/2=\AO/2- /AM/2 which equal to /OM/2=400-100 , /OM/=√300 /OM/=17.33
Friday, April 5, 2013 at 7:18am by Lawrence

chemistry
If the container is closed, as the problem states, increasing the pressure on the outside of the container will not have an effect on the gas inside as long as the container stays intact. Or perhaps Ive misinterpreted the problem.
Wednesday, April 28, 2010 at 7:35pm by DrBob222

Physics
A container of volume 19.4 cm3 is initially filled with air. The container is then evacuated at 0oC to a pressure of 6.0 mPa. How many molecules are in the container after evacuation if we assume that air is an ideal gas?
Tuesday, October 29, 2013 at 11:23am by Chris

science - chemistry
The temperature will not change since both phases (ice and liquid) still coexist. The vapor pressure is a function of temperature and that will not change either. So I would pick answer D, however: The melting of some ice will decrease total liquid + solid volume. This will ...
Monday, December 27, 2010 at 12:43am by drwls

physics
a concave mirror of diameter 40m is used with a 6cm tall object placed 20 cm from it. Where is the image? Can you check my solution Radius(R)=20cm Distance object(do)=20cm (2/R)=(1/do)+(1/di) (1/di)=(2/R)-(1/do) why do they give you the object height i dont think you need to ...
Monday, April 28, 2008 at 12:20pm by shan

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