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What are materials with very low density and relatively great strength?
Wiki User
∙ 15y ago
if you use the word relative, it could range from a plank of wood to some sheet metal. Today we have more technology to add metals to metals by alloying. for example we need low density meterial with high strength. consider the Al metal. it is of low density, to add strength to it we add some other alloying elements like Ni,Cr etc... so as per our requrements we prepare our alloys of low density realeative to high strength.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoAerogels
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What was of materials for a skyscraper?
The materials used to build skyscrapers are strong materials that can withstand a great tension and compression. Early days the skyscrapers are usually made by iron frame but now it uses lighter and stronger metal, steels.
Materials required to construct robot for students level?
what age? "robot" is a VERY generic term. they can range from Lego mindstorms (great for students around age 8) to robotic arms (great for students around age 19). likely you're looking for something like this: http://www.parallax.com/tabid/411/Default.aspx
Why do engineers must analyze structures in great deal?
The point is to make economic structures. In the middle ages buildings were made with very thick walls just to be safe - but it was not economic. With proper structural analysis you can make buildings that stay up but are relatively cheap to make.
What makes reinforced beam column fail?
First, there is not enough information to properly answer this question. Second, are you needing information on a column or a beam or both? A column is vertical and beam is horizontal. What is the material being used? Wood deflects and has elastic properties that diminish as the wood dries out and ages. Steel has great tensile strength but little elasticity, and fails rapidly under heat. Concrete is great in compression but has little or no tensile strength or elasticity. What are the signs of failure? Are they fractures, stretching, bowing, cracking, shrinking, etc. As you can see there is a lot more to failure than did the roof fall in. if you can answer these questions maybe I can be of assistance. Terry
Why steel is used to reinforce concrete explain it?
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Why was the use of iron important?
because of its density,good conductivity,great tensile strength
Why do iron use in structures?
Iron/steel is used in building because of its great strength and, the fact that it is relatively abundant, thus inexpensive.
How is density advance shampoo of l'oreal and its price?
Density Advance Shampoo from L'oreal is a great line to help encourage strength, body and shine. It's price is comparable with other L'oreal lines on the market.
Where were the materials used to build the great wall of china found?
they werent found, they were bought and paid for. It wasnt a Scavenger hunt in search for materials to build a relatively large wall, it was a process that took time.
What gives skyscrapers their strength?
The strength of the skyscraper comes from the design and engineering concepts and the materials used in their construction. Their great mass keeps them "pressed to the earth" where they were built. Simple. And the strength of the materials in their frame holds them up while permitting them to flex just enough to resist failing and falling under the loads of wind and ground movement.
How can you use the Earth's density to hypothesize that the core of the Earth is composed of very dense matter?
The net density of the earth is much higher than the density of the materials that make up the crust and other portions of the planet that we can reach. There for the parts we cannot yet reach must have a much greater density, or the net density would not be as great as it is.
Subodh was a man of great strength change the strength into adjective?
Subodh was a man of great strength. To change the word 'strength' into an adjective in this sentence you could say 'Subodh was a man of great determination'.
Does volume depend on mass?
To a certain extent, the more material you have (the greater the mass) the larger the volume will be.But there is no absolute relationship as some low density materials will have a great volume but very little mass while some high density things can have very great mass with very little volume.
Sentence using word strength?
Patience is your great strength.
What is the significance of B-H curve?
H is the symbol for magnetic field strength, which is defined as the magnetomotive force per unit length of a magnetic circuit, where the magnetomotive force is provided by a current-carrying coil, wound around that magnetic circuit. Magnetomotive force is the product of the current flowing through the coil and the number of turns, expressed in amperes (although often spoken as "ampere turns").The magnetomotive force gives rise to the magnetic flux within the magnetic circuit, the intensity of which is termed flux density (symbol B), expressed in teslas.A B-H curve plots changes in a magnetic circuit's flux density as the magnetic field strength is gradually increased. The resulting shape indicates how the flux density increases due to the gradual alignment of the magnetic domains (atoms, that behave like tiny magnets) within the magnetic circuit material. When all the domains have aligned, the B-H curve reaches a plateau and the magnetic circuit is said to be saturated. At this point, any further increase in magnetic field strength has no further effect on the flux density. Different magnetic materials, such as iron, steel, etc., have B-H curves with different slopes and points at which saturation occurs.After reaching saturation, a reduction in the magnetic field strength results in a reduction in the flux density. However, the resulting curve does not quite match the original curve, but 'lags behind' it. This effect is called hysteresis, which is from the Greek, meaning to 'lag behind'.When the magnetic field strength reaches zero, the resulting curve indicates that the flux density has not, itself, reached zero. The value of flux density remaining is termed the remanence (or residual magnetism) of the magnetic material. 'Soft' magnetic materials, used in the manufacture of transformer cores, etc., will have a very small remanence; whereas 'hard' magnetic materials, used in the manufacture of permanent magnets, will have a very high remanence.In order to remove any remanence, the magnetic field strength requires to be reversed (by reversing the direction of the current in the coil) and increased in the opposite direction. The amount of 'negative' magnetic field strength necessary to completely remove the remanence is called coercivity.If we continue to increase the negative magnetic field strength, the magnetic material will again reach saturation in the opposite direction, and the new curve will be a mirror image of the original curve. The complete B-H curve is then usually described as a hysteresis loop. The area contained within a hysteresis loop indicates the energy required to perform the 'magnetise - demagnetise' process.'Soft' magnetic materials require relatively little energy to become magnetised and demagnetised and, so, have 'narrow' hysteresis loops, whereas 'hard' magnetic materials require a great deal of energy and have 'wide' hysteresis loops.So, B-H Curves and Hysteresis Loops are a valuable tools for comparing the characteristics and behaviour of different magnetic materials, in order to select them for an appropriate application.
What is the significance of B H curve?
H is the symbol for magnetic field strength, which is defined as the magnetomotive force per unit length of a magnetic circuit, where the magnetomotive force is provided by a current-carrying coil, wound around that magnetic circuit. Magnetomotive force is the product of the current flowing through the coil and the number of turns, expressed in amperes (although often spoken as "ampere turns").The magnetomotive force gives rise to the magnetic flux within the magnetic circuit, the intensity of which is termed flux density (symbol B), expressed in teslas.A B-H curve plots changes in a magnetic circuit's flux density as the magnetic field strength is gradually increased. The resulting shape indicates how the flux density increases due to the gradual alignment of the magnetic domains (atoms, that behave like tiny magnets) within the magnetic circuit material. When all the domains have aligned, the B-H curve reaches a plateau and the magnetic circuit is said to be saturated. At this point, any further increase in magnetic field strength has no further effect on the flux density. Different magnetic materials, such as iron, steel, etc., have B-H curves with different slopes and points at which saturation occurs.After reaching saturation, a reduction in the magnetic field strength results in a reduction in the flux density. However, the resulting curve does not quite match the original curve, but 'lags behind' it. This effect is called hysteresis, which is from the Greek, meaning to 'lag behind'.When the magnetic field strength reaches zero, the resulting curve indicates that the flux density has not, itself, reached zero. The value of flux density remaining is termed the remanence (or residual magnetism) of the magnetic material. 'Soft' magnetic materials, used in the manufacture of transformer cores, etc., will have a very small remanence; whereas 'hard' magnetic materials, used in the manufacture of permanent magnets, will have a very high remanence.In order to remove any remanence, the magnetic field strength requires to be reversed (by reversing the direction of the current in the coil) and increased in the opposite direction. The amount of 'negative' magnetic field strength necessary to completely remove the remanence is called coercivity.If we continue to increase the negative magnetic field strength, the magnetic material will again reach saturation in the opposite direction, and the new curve will be a mirror image of the original curve. The complete B-H curve is then usually described as a hysteresis loop. The area contained within a hysteresis loop indicates the energy required to perform the 'magnetise - demagnetise' process.'Soft' magnetic materials require relatively little energy to become magnetised and demagnetised and, so, have 'narrow' hysteresis loops, whereas 'hard' magnetic materials require a great deal of energy and have 'wide' hysteresis loops.So, B-H Curves and Hysteresis Loops are a valuable tools for comparing the characteristics and behaviour of different magnetic materials, in order to select them for an appropriate application.
What is the two definition of gas?
a. The state of matter distinguished from the solid and liquid states by relatively low density and viscosity, relatively great expansion and contraction with changes in pressure and temperature, the ability to diffuse readily, and the spontaneous tendency to become distributed uniformly throughout any container.b. A substance in the gaseous state.
