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What is the shear wave velocity in HDPE?
The shear wave velocity in HDPE (High-density polyethylene) typically ranges from 1500 to 2500 m/s, depending on factors like temperature, density, and crystallinity of the material.
How Degree of polymerization affect to the crystallinity?
A higher degree of polymerization generally leads to higher crystallinity in polymers. Longer polymer chains can pack together more closely in an organized manner, increasing the likelihood of crystalline regions forming. This results in a higher degree of ordered molecular structure, leading to increased crystallinity in the polymer.
What is meant by crystallinity in polymers?
Crystals are type of solid state bodies whose structural order are well defined and have a unique lattice structures. There is a perfect distance between the various layers in its structure. Crystallinity has big influence on the hardness, density of the body. Non- Crystalline substances are the ones who lack the structural order and do not posses the well defined lattice structure. They tend to have lower density and low melting point as there atoms are scattered. Crystals have high tensile strength while the non crystals are not.
What factor most influenced buoyancy?
density of the buoyant fluid.
The ability of an object to float on a fluid is influenced by?
The ability of an object to float on a fluid is influenced by its density compared to the density of the fluid. If the object's density is less than the fluid's density, it will float. Additionally, the shape and volume of the object can also affect its ability to float.
What are the factors that influence crystallinity?
In general it can be said that the most important factor affecting the crystallinity is the structure of the components used in polymer synthesis. If the polymer synthesized has a very symmetrical structure, then we can say that a highly crystalline material will form. The tacticity of the polymer is also important factor affecting the crystallinity. If the components are reacting in an ordered way, like syndiotactic PET, the material will be highly crystalline. But if the PET is atactic then it will be highly amorphous,even if the components of the polymer are the same.
The ability of an object to float on a liquid is influenced by what three factors?
DEnsity of the liquid . Density of the floating object Temperature Remember the Principle of Archimedes. 'The weight/mass of a body i,,ersed im a fluid is euqla to the weight/mass of the fluid displaced'.
Is the population of predators density dependent?
Yes, the population of predators is density dependent, meaning that it is influenced by the availability of prey and competition for resources within their ecosystem.
What disadvantages does crystallinity in a polymer offer?
Crystallinity in a polymer can lead to decreased flexibility and impact resistance. It may also make the material more prone to stress cracking. Additionally, the presence of crystalline regions can affect the transparency and processability of the polymer.
What type of factors are limiting factors whose effects are not influenced by population density?
Abiotic factors, such as temperature, water availability, and sunlight, are considered limiting factors whose effects are not influenced by population density. These factors directly affect the growth and survival of organisms irrespective of how many individuals are present in a given area.
Is a higher density mean a heavier object?
Not necessarily. Density is a measure of how much mass is packed into a given volume. An object can have a high density but still be light if it is made of materials that are not very dense. Weight, on the other hand, is influenced by both density and volume.
Is Influenza epidemic density dependent or density independent?
Influenza epidemics are considered density dependent, as the spread of the virus is influenced by the population density and interactions among individuals. Higher population density can lead to increased transmission of the virus, making epidemics more likely to occur.
