What is the relationship between buoyancy and the Archimedes principles?
Q. Discuss in detail buoyancy and its relationship with Archimedes principles.
Asked by juwiegorawr - Thu Nov 15 21:31:23 2007 - - 3 Answers - 0 Comments

A. An object will displace its volume in fluid when submerged. or An object will displace a volume of fluid equal to its weight when floating.. The buoyant force is equal to the weight of the fluid displaced and is forcing the object out of the fluid. Fb=Vpg Fb- buoyant force V - fluid's volume displaced p - density of the fluid g - acceleration due to gravity
Answered by Edward - Thu Nov 15 21:38:26 2007

do you know the biography of Archimedes?
Q. I am supposed to write the biography of Archimedes, can you tell some thing about him and I'll translate it ito my language and write it down, thanks!
Asked by patricia - Wed Dec 19 13:22:34 2007 - - 2 Answers - 0 Comments

A. Archimedes' father was Phidias, an astronomer. We know nothing else about Phidias other than this one fact and we only know this since Archimedes gives us this information in one of his works, The Sandreckoner. A friend of Archimedes called Heracleides wrote a biography of him but sadly this work is lost. How our knowledge of Archimedes would be transformed if this lost work were ever found, or even extracts found in the writing of others. Archimedes was a native of Syracuse, Sicily. It is reported by some authors that he visited Egypt and there invented a device now known as Archimedes' screw. This is a pump, still used in many parts of the world. It is highly likely that, when he was a young man, Archimedes studied with the successors… [cont.]
Answered by sparks9653 - Wed Dec 19 13:49:12 2007

how has archimedes spiral helped us today?
Q. I am doing a math project on archimedes spiral. I was wondering how has Archimedes spiral helped us today, how have we used it in our day to day lives?
Asked by yankeelove222 - Sun Mar 29 13:27:41 2009 - - 1 Answers - 0 Comments
Websites about Archimedes and what he did for math?
Q. I have to give a Report on Archimedes and how he influenced the world of math. If anybody could give me a few good web sites it would be extremely helpful for my report and I would appreciate it very much.
Asked by Chad - Tue Oct 21 23:20:08 2008 - - 2 Answers - 0 Comments

A. There you are. Used that for a project I did actually.
Answered by TH - Tue Oct 21 23:25:46 2008

How does Archimedes principle apply to the situation stated below?
Q. If a cup containing a pebble inside it, is placed on the surface of water in a tank causing the water to overflow what will the case when the cup and pebble are separately placed on the water surface.
Asked by vk - Fri Jan 23 20:19:22 2009 - - 4 Answers - 0 Comments

A. OK, so when you put the cup with the pebble inside, does it remain afloat? You have 2 cases to consider, cup floats and cup sinks. First case, cup floats with pebble inside. When separated, I assume the cup floats and the pebble sinks. Consider what happens. When together, the water displaced is equal to the volume of the cup which equals the mass of the pebble and cup. When separate, the cup still floats, but displaces only as much water as the mass of the cup alone. The difference is related ONLY to the change in mass which changes the volume displaced when floating. The pebble sinking, however, displaces water only by its volume which weighs less than the pebble. This means if I have figured things correctly according to volumes and… [cont.]
Answered by rowlfe - Fri Jan 23 21:04:09 2009

Can someone explain exactly how Archimedes approximated pi by inscribing a 12-gon in a circle, please?
Q. What proportions did he use and how did he get them? Did he get an actual length (as in a number) of a side of the 12-gon? Thank you!
Asked by slivsterx3 - Sun Jun 15 19:39:13 2008 - - 1 Answers - 0 Comments

A. I don't know if this is exact enough for you but ... The idea is that the more sides you have on the polygon, the closer it is to a circle. So if you put a polygon inside the circle and another one outside the circle, the more sides you have the tighter they "squeeze" the circle. 12 is already pretty good. I wasn't there, but I presume he calculated actual lengths. Maybe he even measured them. See this picture. OAC is an equilateral triangle with side = r (radius of circle). Bisect it with radius OB. OAD is a right triangle 30-60-90 Using Pythagorean theorem, we can determine length OD. Which gives us DB (OD + DB = r). BAD is also a right triangle, so with DB and AD, and Pythagorean Theorem, we can find BA. That gives the… [cont.]
Answered by MathMan TG - Sun Jun 15 21:09:02 2008

How to find the weight of a floating object using the archimedes principle?
Q. Do it work for objects that sink as well?
Asked by Potato Parade - Sun Feb 8 02:36:29 2009 - - 2 Answers - 0 Comments

A. You can find the volume but you can't find the weight. If you fill a graduated cylinder with water, and you throw an object that sinks in it, the water level will rise equal to the amount of the volume (as it sinks it pushes water out of the way to take its place on the bottom). However you can't find the weight unless you know the density. Then mass = density*volume. If you are working in metric, then weight is 9.8 N/kg so you would multiply your mass by 9.8. If you are in English units, then weight = weightdensity*volume, because lbs are a unit of weight.
Answered by sincostan - Sun Feb 8 03:12:32 2009

How do you make a model of the Archimedes' screw using affordable material?
Q. I want it to be able to be put in water can easily see the way it works large but small enough to carry
Asked by Universal S - Sat Feb 23 13:28:40 2008 - - 1 Answers - 0 Comments

A. Buy a long auger bit for a drill at a hardware store and also a piece of pvc tubing that the bit will fit into snugly...voila! Coat the inside of the tube with Vaseline or light grease to make it seal better. You may have to buy the bit to fit the tube size...something like this...
Answered by paul h - Sat Feb 23 13:48:29 2008

What are the principles in Physics involved in Archimedes death ray?
Q. We need it on our Investigative Project. Thanks for cooperation.
Asked by A.Abusmas - Sun Jun 21 00:41:17 2009 - - 1 Answers - 0 Comments

A. Archimedes death ray uses the principles of optics. Archimedes used the law of reflection (incident angle = reflective angle) in order to arange the mirrors. By calculating the exact angles at which the sun would hit and reflect off of the mirrors, Archimedes was able to position all of the mirrors in such a way as to reflect the light into a focal point. This focal point was at the center of the device and was a parabolic mirror. When all of the reflected light waves meet at the center of the parabolic mirror, they all reflect at the same angle towards the target. Due to the multiple rays of light being magnified by the mirrors, the luminous flux (F = I(4 )) of the ray would be much greater than if one were to reflect a ray of light with… [cont.]
Answered by s s - Sun Jun 21 01:16:03 2009

Is there a story that relates to Archimedes and mules?
Q. I'm supposed to find about a famous story about mules that is in some way associated with Archimedes, but I can't find one!!
Asked by Polly P - Sat Feb 23 19:51:45 2008 - - 1 Answers - 0 Comments

A. This is all that I am aware of... When the Egyptians and Romans used Archimedes screw it was mostly powered by man but later my mules and horses, Site:
Answered by Crunchyhead - Wed Feb 27 10:15:41 2008

I don't understand: use Archimedes' fractions to find an interval for pi expressed as a decimal?
Q. They tell us a bit about Archimedes experimenting with pi but don't mention any fractions. And what do they mean by interval? Thanx!
Asked by Laura H - Mon Sep 1 12:51:50 2008 - - 1 Answers - 0 Comments
How did archimedes find the volume of an irregular shape using water?
Q. How did archimedes find the volume of an irregular shape using water?
Asked by L - Tue Oct 27 13:31:40 2009 - - 4 Answers - 0 Comments

A. Legend has it that he took a bath and water was spilling out and he screamed "Eureka!". He then measured the volume of the King's crown by putting it in a bucket filled to the brim with water. The amount of water that spilled was measured, thus determining the the volume of the crown. Afterward, he compared the density of the crown with real gold of the same volume. He found that the crown was fake and the crown maker was executed.
Answered by zaid - Tue Oct 27 13:43:41 2009

What did Archimedes agrue about when he was talking about archimedes principle?
Q. What did Archimedes agrue about when he was talking about archimedes principle?
Asked by Josh Muller - Wed Aug 22 12:55:34 2007 - - 2 Answers - 0 Comments

A. Something about whether or not his crown was made out of gold. Then he got inspired in the bathtub when he realized that the weight of water displaced by him was equal to the weight of the part of him that was under the water.
Answered by . - Wed Aug 22 13:05:43 2007

who was a mathematician from egypt in archimedes time ?
Q. its a question from my homework , it says who is the a great scholar , but from egypt, in archimedes time ?
Asked by Oli - Thu Sep 17 22:21:58 2009 - - 2 Answers - 0 Comments
why do you think that archimedes was the best greek scientist?
Q. What made him so much greater than the others?
Asked by nadia owen - Tue Dec 2 16:27:52 2008 - - 1 Answers - 0 Comments

A. Archimedesis is regarded as one of the leading scientists and prolific ancient Greek mathematicians in classical antiquity. Among his advances in physics are the foundations of hydrostatics, statics and the explanation of the principle of the lever But it was NOT Archimedesis that blew me away. It was Hero of Alexandria (Heron), an ancient Greek geometer and engineer. The things this guy came up with things that make your jaw drop. The steam engine was invented by Heron. The first vending machine was also one of his constructions. A windwheel operating an organ, marking probably the first instance of wind powering a machine in history. Hero also invented many mechanisms for the Greek theater, including an entirely mechanical play… [cont.]
Answered by muinghan - Tue Dec 2 16:53:18 2008

How can archimedes principle be used to find weight of a floating object and a sinking object?
Q. Homework help
Asked by Boo J - Thu Mar 12 04:49:34 2009 - - 2 Answers - 0 Comments

A. Archimedes says: buoyant force is equal to the weight of the volume of displaced fluid. So if the object floats, it is in equilibrium--the forces are balanced: weight of object = buoyant force = densityfluid* volume * g If the object is sinking, its weight exceeds the buoyant force, so the net force is: Fnet = weight - buoyant force = weight - densityfluid * volume * g = ma So the object accelerates downward: a = weight / m - densityfluid * volume * g / m = g (1 - densityfluid / densityobject) If you can measure that acceleration somehow, you can calculate the weight: weight = ma + densityfluid * volume * g
Answered by ( )Mistress Bekki - Thu Mar 12 07:42:35 2009

What is the process used by Archimedes to determine the volume of a sphere using equal weights??
Q. plz help i need to know this to do my homework thanx!
Asked by afghan_candy - Mon Nov 12 15:43:19 2007 - - 1 Answers - 0 Comments

A. method of exhaustion
Answered by Ruben - Wed Nov 14 21:24:09 2007

What was boyle's law, pascal's law, and archimedes' principle?
Q. I need the importance and the result of them!!!
Asked by Layla - Sat Sep 13 20:35:04 2008 - - 1 Answers - 0 Comments

A. Boyle's Law states that for a fixed amount of gas kept at a fixed temperature, pressure and volume are inversely proportional (while one increases, the other decreases). PV = k Pascal's Law states that a change in the pressure of an enclosed incompressible fluid is conveyed undiminished to every part of the fluid and to the surfaces of its container. P = pg( h) Archimedes' Principle states that any body wholly or partially submerged in a fluid is buoyed up by a force equal to the weight of the fluid displaced.
Answered by geo1w0x1 - Sat Sep 13 21:23:07 2008

Does anyone have any information of a mechanical play that Archimedes invented?
Q. if I remember this correctly it was a puupet type show he built to entertain the king. It was all automated. I need info on it.
Asked by drizzt60 - Mon Apr 7 23:01:50 2008 - - 1 Answers - 0 Comments

A. It's known that Archimedes worked with puppets, but you might be thinking of Heron's work, The Automaton Theater. He had an automated theatrical machine, Nauplius.
Answered by Phoenix - under the pear tree - Mon Apr 14 17:22:38 2008

How to differentiate between Pascal's Principle, Archimedes Principle and Bernoulli's Principle?
Q. I've having a hard time remembering what is what.
Asked by Vicky - Sun Oct 11 10:39:13 2009 - - 2 Answers - 0 Comments

A. Pascal's principle: When a force is exerted on a contained fluid, pressure is distributed evenly over the entire area of the container. Remember it by this: Pressure is Proportional to aPPlied force. Use the Ps to match to Pascal. Archimedes' principle: The buoyant force that a liquid exerts on an object is equal to the weight of the displaced liquid. Remember it by this: The Amount of Absconded liquid is equal to the buoyant force. Use the As to match to Archimedes. Bernoulli Principle: Faster moving air exerts less force than slower moving air. Remember it by this: Blowing air Belittles force. Use the Bs to match to Bernoulli.
Answered by unknown - Sun Oct 11 11:00:03 2009

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Heureka (zu deutsch: Ich habe es gefunden) mit diesen Worten kroente Archimedes seinen rettenden Einfall bei der Loesung eines mathematischen Problems. ...
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Last Friday I had the fortunate opportunity to attend the . Archimedes. Movement's yearly conference. The . Archimedes. Movement was founded by doctor, former governor, and 2010 gubernatorial candidate, John Kitzhaber. The . Archimedes. Movement ...

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